Related
@MikeChannon Content deleted, please close
Tethered CWM or TWRP and Root KitKat or Lollipop. And temp_root
deleted
Reserved
reserved
Downgrade Lollipop Firmware (Return to stock KitKat from Lollipop)
deleted
Repair Lollipop upgrade - entered bios error
deleted
Yoga Tab 2 (830,1050,1380) - unlocking the bootloader
deleted
Partition layouts
deleted
AoL - Android ON Linux
deleted
YT2 Firmware and Various Tools
Removed
workdowg said:
Enter bios to install alternate OS's (Windows/Linux) or run from USB - Coming soon?
Click to expand...
Click to collapse
I had seen the linux was working on tablet, do you know how to achieve it?
tang1331726 said:
I had seen the linux was working on tablet, do you know how to achieve it?
Click to expand...
Click to collapse
I've seen nothing on the 1050F or any of the Android based tablets (even numbers). The Russian forum has a guide for the Windows tablets (odd numbers). I'm trying to keep up on what they are doing. I'm collecting files to help us later on...
I'm proud to have contributed to this tip section .
Note that this trip works on majority of 5.0x devices.
One question : is there a 830f version with windows, as suggests :
http://shop.lenovo.com/fr/fr/yoga-tablet-2/
It's in french but selecting 8" let me thinl there's a windows 8 version
I'd ne happy to give it a try... after having succesfully rooted my 830, as i'm stuck with the E: error
http://forum.xda-developers.com/thinkpad-tablet/general/yoga2-official-830f-lollipop-update-20-t3161448/page2
pregis said:
I'm proud to have contributed to this tip section .
Note that this trip works on majority of 5.0x devices.
One question : is there a 830f version with windows, as suggests :
http://shop.lenovo.com/fr/fr/yoga-tablet-2/
It's in french but selecting 8" let me thinl there's a windows 8 version
I'd ne happy to give it a try... after having succesfully rooted my 830, as i'm stuck with the E: error
http://forum.xda-developers.com/thinkpad-tablet/general/yoga2-official-830f-lollipop-update-20-t3161448/page2
Click to expand...
Click to collapse
Android models:
Code:
YOGA Tablet 2-830F
YOGA Tablet 2-830L
YOGA Tablet 2-1050F
YOGA Tablet 2-1050L
YOGA Tablet 2 Pro-1380F
YOGA Tablet 2 Pro-1380L
Windows models:
Code:
YOGA Tablet 2-851F
YOGA Tablet 2-851L
YOGA Tablet 2-1051F
YOGA Tablet 2-1051L
When downgrading from 5.0 to 4.4 but fails to enter into the UEFI interface, how to return from UEFI interface to the Android interface.
1, if the BIOS settings have changed, please return all changes, so you need to write down what options were changed.
2, long press the power button to shut down, press and hold the volume + and volume - and power on, enter the FastBoot mode, using data cable connection computer.
3, extract droidboot.img and bootx64 from 5.0 OTA update package, this forum post has given the web link of the firmware, please download it.
4, create a folder named “flash” in the desktop, and then put the extract bootx64 and droidboot.img into the folder, and then create a text document, input “CMD” in the text document and then save, Modify text file txt suffix for bat. Turn off all the useless software!
5, open the new text document.bat, then there will be CMD interface, input
fastboot flash osloader bootx64.efi
and then input
fastboot boot droidboot.img
6, Then the tablet into the driodboot interface, and then in accordance with the downgrade tutorial directly degraded. Be sure to remember to delete a little something in the flash-LtoKK-PVT-810.xml:
Code:
<command>
<string>fastboot erase data</string>
<timeout>120000</timeout>
<retry>2</retry>
<description>Erasing 'data' image.</description>
<mandatory>1</mandatory>
</command>
<command>
<string>fastboot format data</string>
<timeout>120000</timeout>
<retry>2</retry>
<description>Formating 'data' image.</description>
<mandatory>1</mandatory>
</command>
, and then flash flash-LtoKK-PVT-810.xml use flash-LtoKK-PVT-810.xml,
7, when flashed (flash-LtoKK-PVT-810.xml), you will find that the tablet restart card in the logo interface, neglect it and forced shutdown, then press the volume+ and volume- and power to reenter the fastboot mode,
8, and then flash flash.xml, you will return to 4.4.
Thanks Tang1331726 for this detailled tutorial !!
I'm downloading the 1.15GB file over a poor wifi link... but as I understand you are proposing me to downgrade to kitkat.
As I've never rooted my 830F before when in 4.X nor mdified the bios of it, and updated only thru OTA to 5.01 last week, I'm a little confused about what you propose me.
I should use the proposed rooting technique for 5.0
http://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
Using T4 option...
don't you think ?
Thanks Workdowg for the information.
I browsed XDA and google, and ain't find any information about going from Android version to windows and back...
Too bad as my sun wants to try the lenovo concept (form factor is just perfect in my oppinion), but he wants Windows (8-( ...
tang1331726 said:
1? if the BIOS settings have changed, please return all changes, so you need to write down what options were changed.
2? long press the power button to shut down, press and hold the volume + and volume - and power on, enter the FastBoot mode, using data cable connection computer.
3? extract droidboot.img and bootx64 from 5.0 OTA update package, this forum post has given the web link of the firmware, please download it.
4? create a folder named “flash” in the desktop, and then put the extract bootx64 and droidboot.img into the folder, and then create a text document, input “CMD” in the text document and then save, Modify text file txt suffix for bat. Turn off all the useless software!
5? open the new text document.bat, then there will be CMD interface, input
fastboot flash osloader bootx64.efi
and then input
fastboot boot droidboot.img
6?Then the tablet into the driodboot interface, and then in accordance with the downgrade tutorial directly degraded. Be sure to remember to delete a little something in the flash-LtoKK-PVT-810.xml:
fastboot erase data
120000
2
Erasing 'data' image.
1
fastboot format data
120000
2
Formating 'data' image.
1
, and then flash flash-LtoKK-PVT-810.xml use flash-LtoKK-PVT-810.xml,
7?when flashed (flash-LtoKK-PVT-810.xml), you will find that the tablet restart card in the logo interface, neglect it and forced shutdown, then press the volume+ and volume- and power to reenter the fastboot mode,
8?and then flash flash.xml, you will return to 4.4.
Click to expand...
Click to collapse
To be clear. This is to fix the bios error when you upgrade to Lollipop and try to downgrade to KitKat? Also this worked on your 830F?
What's the fuss?!
workdowg said:
Known supported devices:
5) Tick "force sparcing" and change size to 500mb
Click to expand...
Click to collapse
This. I had rooted kitkat on a pal's 830LC. He update to an OTA (lollipop according to him) and got stuck in vicious boot loop. I downloaded YT2-830LC_S0184_150422_ROW and whatever I'd do, flashing system image would fail. Finally, changed force sparcing to 500MB, and suddenly, it's what's all the fuss?!? By the way, Windows 10 x64, used IntelAndroidDrvSetup1.9.0.
Thanks a ton :good:
workdowg said:
To be clear. This is to fix the bios error when you upgrade to Lollipop and try to downgrade to KitKat? Also this worked on your 830F?
Click to expand...
Click to collapse
yes, I had do it three times, all of tried are succeed
workdowg said:
To be clear. This is to fix the bios error when you upgrade to Lollipop and try to downgrade to KitKat? Also this worked on your 830F?
Click to expand...
Click to collapse
Thanks Workdowg, and Thanks tang1331726 for your patience.
My english might be incorrect, but as I per my understanding this fix is when you are stuck and only solution is downgrading from KK to LL.
My situation is somewhat different as I've succesfully ugraded, without any glitch, thanks to the timming Tip warnig (this is a gold one, I wonder how many RMA Lenovo will have to deal with !!)
My exact situation :
830-F
Lollipop OTA succesfully installed (5.01 July 10 2015)
Problem occur using SuperSU (2,40, 2,46, 2,49) after successfully booted tethered recovery.
Can you confirm me that I've to do the process described by tang1331726 to fix the E: signature error, and that I'll still be under Lollipop ?
ps: I guess there's noway to get Windows 8 or 10 on my 830F, altough 851F seems very, not to say tottally, hardawre similar.
pregis said:
Thanks Workdowg, and Thanks tang1331726 for your patience.
My english might be incorrect, but as I per my understanding this fix is when you are stuck and only solution is downgrading from KK to LL.
My situation is somewhat different as I've succesfully ugraded, without any glitch, thanks to the timming Tip warnig (this is a gold one, I wonder how many RMA Lenovo will have to deal with !!)
My exact situation :
830-F
Lollipop OTA succesfully installed (5.01 July 10 2015)
Problem occur using SuperSU (2,40, 2,46, 2,49) after successfully booted tethered recovery.
Can you confirm me that I've to do the process described by tang1331726 to fix the E: signature error, and that I'll still be under Lollipop ?
ps: I guess there's noway to get Windows 8 or 10 on my 830F, altough 851F seems very, not to say tottally, hardawre similar.
Click to expand...
Click to collapse
You are very welcome!
As far as the "E: signature error" please try posting in the Intel tethered recovery thread. Those guys should be able to help. Some people had luck by placing the SuperSU zip on the MicroSD and installing from there. Also try using the another recovery. I use TWRP on my 1050F.
We are trying to get Windows and/or Linux running on these Android based YT2's. Keep looking back here for more info...
Hello everybody, I was trying to revert to a 4.x rom because bluetooth tethering was not working... anyway I used Intel Phone Flash Tool and it seems like he failed to flash boot.bin but restarted anyway
SO I only have the Intel BIOS, I can access all the settings, but I cannot start it in Fastboot mode (it just hangs on FastBoot Starting...) or anything that resembles Android.
Still this BIOS seems more a PC to me than a tablet so I am posting here because maybe there is someway to attach an USB OTG (for example) and boot something from there.
@ionioni is working on a safe downgrade path. We did mine but it could be a disaster if not followed correctly. Your other choice is Lenovo repair support. When i bricked mine, it only took 6 days to get it back in my hands. You could also try the steps here... http://forum.xda-developers.com/showpost.php?p=62237383&postcount=5
Sent from my YOGA Tablet 2-1050F
Thank you very much @workdowg, I passed by that thread, just "DNX" mode does not work on my tablet.
So Repair Support it is.
It's very sad such an awesome tablet has so poor ROM that people has to downgrade it...
Mr.Gamer said:
................but I cannot start it in Fastboot mode (it just hangs on FastBoot Starting...) ..............
Click to expand...
Click to collapse
that is DNX mode!!! that message translates to: i DNX have started and now i am waiting for YOU to give me a (fast)boot image to start... so that message is exactly the message indicating that you ARE in dnx mode.
updated: read this http://forum.xda-developers.com/thinkpad-tablet/general/yoga-tab-2-830-1050-1380-to-kitkat-t3240487
edit:
before anything:
1. download/extract the files attached to this post, now start your tablet (using the Pwr+VolUp+VolDown) to get to that somehow confusing "Fastboot starting..." message = DNX mode (you must get to that message before continuing!)
2. run the extracted tmp-root-1050F-lollipop.exe file (i am assuming you are on the X64 = Lollipop firmware as that screen pictures you attached shows), should do some stuff and in the end if all well will drop you to a root shell (in that post theres a PrtScr for reference), just follow the messages it's pretty easy. should the exe get stuck/not work put your tablet again in DNX mode and try the other file tmp-root-1050F-kitkat.exe. (this means somehow the bios got downgraded partially on your attempt to return to kitkat). this is just a test to see how to move on, it will not fix nor change anything on your tab, after you reboot it will be in the same state as before (that is if you don't do stuff in that root shell of course)
- report back which one worked (gived you a shell)
- also do you want to go back on kitkat or do you want to stay on lollipop? is important to know as the steps are different
@MikeChannon removed OP. please close
what? lol
Yeeha! You are the magic man....
workdowg said:
Yeeha! You are the magic man....
Click to expand...
Click to collapse
He truly IS the man. Helped me out BIG style.
ionioni said:
READ CAREFULLY AND BE WARNED BEFORE ANYTHING:
THIS CAN HARD-BRICK YOUR DEVICE AND I TAKE NO RESPONSIBILITY FOR THAT!
use it only if you must or not at all
you can read this for some details about what bricks are so you understand what you can get into
this is for all Yoga Tab 2 models 830, 1050, 1380 (regardless of the submodel F,L,LC)
it restores(downgrades) your bios firmware from whatever Lollipop version to the original/genuine one from the latest KitKat stock rom released by Lenovo (and all the latest KitKat stock rom's have 150422 in the rom filename, ie April 15, 2015 and nothing not even minor OTA's were released after this date for KitKat, next ones upgraded KitKat to Lollipop)
useful to:
1. those who want to return back to the KitKat stock rom from Lollipop (if you simply flash back the KitKat stock rom files and you are still on Lollipop bios firmware you will softbrick as the Lollipop bios is a x64 version while the KitKat loader/kernel are ia32 so you will get stuck at efi shells, bios screen etc)
2. those who took the Lollipop OTA, succeded, but had in time problems (bricked their device) and cannot flash a Lollipop stock rom as they don't have one (not being released by Lenovo/available yet and at least some 830 and 1380 models are in this situation), so they must flash back KitKat stock rom and after take the OTA to Lollipop (and the KitKat flashing part put's them in the same situation as those from p1.)
3. those who tried to take the Lollipop OTA and had problems and they tried to flash KitKat stock rom and yet they are failing (this could be due to problems in the updating while OTA was applied, yet could be that their bios firmware was updated to Lollipop version)
4. those who want to test stuff (going down/up between versions) ... you name it...
how to use it:
1. first download and extract the corresponding tool for your device (830 and 1050 models share the same bios firmware so they have a common tool), while at this you can watch the little attached recording i made with the tool restoring the bios for my 1380F tab so you know what to expect when you run it. USE THE TOOL THAT MATCHES/CORRESPONDS TO YOUR MODEL, you can hard-brick if for eg you use the 1380 one on a 1050 model (didn't even tried but nothing good can happen)
2. place your tab in the DnX mode: power off (by force if you have to), press and hold both VolUp and VolDown butons, keep them pressed, now press Pwr to start and release Pwr when it turns on/buzz (but keep holding pressed Vol buttons), in a few seconds your screen will display "Fastboot starting..." and it will hold on that, now you can release the Vols (you are in DnX mode). you must get that message, try again the whole sequence until you succed, don't move on until you have that "Fastboot starting..." on your screen.
3. run the tool (you must have the intel drivers installed, if you flashed to your tab at some point you should have them already), follow the messages i think it's quite easy and straightforward, in a few minutes you will be done and having a brand new kKitKat bios firmware on your tab
(3) if while running it hangs on the "Preparing to push files..." message, and your tab starts to the whatever error message you had before it means that you already have a KitKat bios (the tool works only with the Lollipop bios firmware) so you don't need to restore the bios, you can flash stock KitKat rom directly (in this scenario the tool doesn't modify anything on your tab)
4. when it finishes the tool will automatically reboot your tablet, leave it for a few seconds to start (it will most likely go ninto some efi shell, or bios screen whatever your old files were) afterwards turn it off (long press Pwr) and that's it
5. you can now start in DnX mode again and flash your stock KitKat rom (this step is quite known by now so i won't detail it, there's a lot of info on that in other threads), take OTA's, eat candies... whatever you like
i must warn you again, while i tested this tool (i think i moved from KitKat to Lollipop and back at least 20 times and never had any issue with it) you are the only responsible if something bad could happen, this is playing with bios (and any mistake will hard-brick your tab so you will have to send it to a service for fixing). make sure you have enough battery (while i used the tool even when i was with 5% on my battery i would not recommend, i say at least a 30-40%, the process runs only for 2-3 minutes so that should not be an issue). and of course once it started the flashing DO NOT EVEN THINK OF INTERRUPTING! (you could close other software on your PC that maybe can hang your computer while flashing.. you got the point)
Good Luck!
edit: i already have messages about successful bios restoring (as expected no? ) but failing on completing the OTA to Lollipop update after flashing anew the KitKat stock rom. to them and to all of you people who are going to Lollipop from your newly flashed stock KitKat: SET YOUR COUNTRY CODE!!! after you flash back stock kitkaton the first boot input ####6020# in your contacts and a dialog will pop from which you MUST choose a country (no matter which one, preferably yours or a close one), then after the tab reboots for updating the region and comes back to Android check that you have a country code set by entering #### 59930# and it should show the code you chosed. if you take the OTA without a country set you will FAIL! if you failed on your OTA to Lollipop flash anew the stock KitKat rom and set the country code
also do not take an OTA if your device is rooted, always UNROOT first then take the update, and you can root back after or just don't root until you finished the whole Android installing and OTA updates
Click to expand...
Click to collapse
thank you! i had the boot to bios problem after trying some not-smart things. after spending an hour on the phone with lenovo this morning getting a repair authorization, i printed out the label. i don't need to send in my 1380f now.
your app fixed that and i was able to flash to kitkat and then upgrade to lollipop.
Works perfect! Thanks!
daWyrd1 said:
thank you! i had the boot to bios problem after trying some not-smart things. after spending an hour on the phone with lenovo this morning getting a repair authorization, i printed out the label. i don't need to send in my 1380f now.
your app fixed that and i was able to flash to kitkat and then upgrade to lollipop.
Click to expand...
Click to collapse
yeah... the guys at Lenovo deserve a break, they have such a beautiful daadeedaadoo sound on the boot animation (that one cannot even disable it )
bisti2004 said:
Works perfect! Thanks!
Click to expand...
Click to collapse
Pentru putin
Mersi Dorin!
My 1050F cannot boot for long time, I posted the problem(http://forum.xda-developers.com/thinkpad-tablet/general/help-1050f-dead-t3188696) but no one answered me. Today I was very excited to find this post and read it carefully, then tried to do it. But just after the sending progress started (the "xx%" progress began)for about 10 seconds, the program "restore-kitkat-bios-830_1050" vanished(Maybe forced teminated by Windows? I ran the "restore-kitkat-bios-830_1050" after a new reboot of Windows). I waited for about 3 minutes, the "restore-kitkat-bios-830_1050" program still didn't appear, and the tab hanging on a normal picture ( I don't remember, probably a recovery stage picture? but I remember the last line is "the result is Okay"). So I had to disconnct the tab from the computer, and powered it off. Then I try to power it on, but sadly find it cannot boot to any screen. In a dark room, I find the backlight of the tab is on when I pressed the power button, but there is no text or picture on it, regardless of whether I press the power button independently, or press the power button together with any volume button(s).
Now the tablet seemingly has changed into a REAL brick (or hardware brick?). How can I rescue it? The only way is to send it to a service?
aerofisher said:
My 1050F cannot boot for long time, I posted the problem(http://forum.xda-developers.com/thinkpad-tablet/general/help-1050f-dead-t3188696) but no one answered me. Today I was very excited to find this post and read it carefully, then tried to do it. But just after the sending progress started (the "xx%" progress began)for about 10 seconds, the program "restore-kitkat-bios-830_1050" vanished(Maybe forced teminated by Windows? I ran the "restore-kitkat-bios-830_1050" after a new reboot of Windows). I waited for about 3 minutes, the "restore-kitkat-bios-830_1050" program still didn't appear, and the tab hanging on a normal picture ( I don't remember, probably a recovery stage picture? but I remember the last line is "the result is Okay"). So I had to disconnct the tab from the computer, and powered it off. Then I try to power it on, but sadly find it cannot boot to any screen. In a dark room, I find the backlight of the tab is on when I pressed the power button, but there is no text or picture on it, regardless of whether I press the power button independently, or press the power button together with any volume button(s).
Now the tablet seemingly has changed into a REAL brick (or hardware brick?). How can I rescue it? The only way is to send it to a service?
Click to expand...
Click to collapse
i've seen the post with the problem you had, now the thing is on a "normal" bricked tablet (meaning soft bricked one) your tab never hangs at the screen to which you're referring to (Powered by Android) it will always move on (to some error message, bios etc). the same tool was used by me and others (including for your 1050F model last one I recall is @Einwood) and never had issues (until now) so imo it's very unlikely that the problem was from the tool (it's task is quite simple and don;t see what could go wrong) something interrupted the flashing process. also you said you tried both lollipop and kiktkat rom flashing and failed and at least one of them should have worked (the roms are flashed using bios dnx as start) so the issues are with your tab hardware most likely.
but all that is irrelevant now... if it doesn't boot at all and you cannot get it to show ANY message at all (white Lenovo logo doesn't show up when you power on nor does it buzz when pwr on) then service is the only solution
@ The Others: please post your tab model too when posting
Thank you so much for such detailed analysis, but I cannot figure out why the hardware has problem. Yes, now it cannot show ANYTHING, white Lenovo logo doesn't show up nor does it buzz when pwr on. Anyway, I think I have no choice except the official repairment now.
I'm trying to find the LENOVO service sites in Canada, but their Canada official site has no such information, on the contrast, its website is full of sale/order/payment information. I think I should re-think about this company.
Thank you again for the reply.
ionioni said:
i've seen the post with the problem you had, now the thing is on a "normal" bricked tablet (meaning soft bricked one) your tab never hangs at the screen to which you're referring to (Powered by Android) it will always move on (to some error message, bios etc). the same tool was used by me and others (including for your 1050F model last one I recall is @Einwood) and never had issues (until now) so imo it's very unlikely that the problem was from the tool (it's task is quite simple and don;t see what could go wrong) something interrupted the flashing process. also you said you tried both lollipop and kiktkat rom flashing and failed and at least one of them should have worked (the roms are flashed using bios dnx as start) so the issues are with your tab hardware most likely.
but all that is irrelevant now... if it doesn't boot at all and you cannot get it to show ANY message at all (white Lenovo logo doesn't show up when you power on nor does it buzz when pwr on) then service is the only solution
@ The Others: please post your tab model too when posting
Click to expand...
Click to collapse
aerofisher said:
Thank you so much for such detailed analysis, but I cannot figure out why the hardware has problem. Yes, now it cannot show ANYTHING, white Lenovo logo doesn't show up nor does it buzz when pwr on. Anyway, I think I have no choice except the official repairment now.
I'm trying to find the LENOVO service sites in Canada, but their Canada official site has no such information, on the contrast, its website is full of sale/order/payment information. I think I should re-think about this company.
Thank you again for the reply.
Click to expand...
Click to collapse
sorry about your issue, yet repairing should not take long, maybe @workdowg can guide you more as it had a similar problem and was solved very fast (6 days if i recall) sending through fedex on lenovo's expenses.
aerofisher said:
Thank you so much for such detailed analysis, but I cannot figure out why the hardware has problem. Yes, now it cannot show ANYTHING, white Lenovo logo doesn't show up nor does it buzz when pwr on. Anyway, I think I have no choice except the official repairment now.
I'm trying to find the LENOVO service sites in Canada, but their Canada official site has no such information, on the contrast, its website is full of sale/order/payment information. I think I should re-think about this company.
Thank you again for the reply.
Click to expand...
Click to collapse
http://bfy.tw/2gNc (just having fun) it is the one that says phone support.
ionioni said:
sorry about your issue, yet repairing should not take long, maybe @workdowg can guide you more as it had a similar problem and was solved very fast (6 days if i recall) sending through fedex on lenovo's expenses.
Click to expand...
Click to collapse
Yes, once i talked to them (about 5 minutes) they emailed me all i needed and i just had to find a local fedex dropoff center. They boxed it and i got it back in 6 days.... this seems to be a common thing for them....
Sent from my YOGA Tablet 2-1050F using Tapatalk
Yoga Tab 2 (830, 1050, 1380) - get back to KitKat
You are my lifesaver and I just can not thank you enough @ionioni
how can you make a file like restore-kitkat-bios-1380.zip ??!! you are such a genius !! :good:
We will never be able to flash it back to KitKat Bios without this zip file !! :crying:
But why don't we need to flash it back to Kitkat Bios on my Samsung Note 3, S5, Note 10.1 (2014 version) and Nexus 9 ?!!
thank you very much for your hard work again and keep up the good work pls
this was on my inbox and it should continue publicly maybe others can benefit
KainXSS said:
I'm wondering what your flashing to the tablet with your tool, I have a Lenovo S8-50F and lollipop is pretty abysmal on it, so I'm wondering what your flashing to downgrade the bios so I can try it on the S8, since its very very similar to the 830.
Click to expand...
Click to collapse
you should NOT use the tool unless it is made exactly for your model, or you most likely will hard-brick. moreover Lenovo uses an in-cpu module for digitally checking the authenticity of the firmware you have on your board at pwr on time and even if you have a bios that would work on your model if it is signed with another key it will cause a hard-brick (the measured boot module will refuse to load the IBB in the new bios).
for eg if one writes the 1051 windows variant of bios on the 1050 android one (they are identical in hardware) it hard-bricks (tested).
send me a link to the latest KK stock rom for your device and i will check on it.
That is what happend to me. My loved 1380f is hard-bricked. Only the white lamp is blinking and it doesn't turn on anymore.
Is there a possibility to repair it or can i throw it in the garbage? Please give me an advice. Thank you very much.
bombolota1 said:
That is what happend to me. My loved 1380f is hard-bricked. Only the white lamp is blinking and it doesn't turn on anymore.
Is there a possibility to repair it or can i throw it in the garbage? Please give me an advice. Thank you very much.
Click to expand...
Click to collapse
not so much you can do, the hardware is fine, it just got the wrong firmware in it... somehow you must rewrite the bios but you cannot do that from the outside (ie by software means) without being able to boot at least in DnX mode. you can check quickly ... if after you PwrOn (well.. after you long press Pwr button as at this moment Powered On of Off are werid concepts ) you don't get NOTHING on your display (ye not even the Lenovo -> Powered by Android white/black logo) than that's it (try maybe to see if somehow DnX didn't got hooked by entering a fastboot devices and see if by some miraccle you don't see your device there)
your device must be opened by a repairing service tech (especially if he is on warranty), you could do it yourself (i did) but you need the appropiate tools and know/how otherwise from a hard-bricked yet recoverable (the hardware is ok) you will transform it into just a paper holder
updated kitkat bios restore tool to version 2 (foolproof version). read the main thread post at the beginning.
Good morning.
Please let me introduce my situation. I use Lenovo Yoga tablet 2 Pro. On 9-th of november I updated Android to 5.0.1. Unfortunately, one of my commercial aps now can not make a connection with external device (no appropriate information about USB connection is appeared).
I am affraid the problem lies on the Android 5.0.1 system. Before that everything had worked perfect.
That is way I decided to downgrade to the Androix 4.x.
I found above treads, but have some doubts.
Is above tool downgrade my system to Android 4.x or do I need to do some additional operations, to get back to the Android 4.x?
In the section - how to use it (point 5) we can read:
5. you can now start in DnX mode again and flash your stock KitKat rom (this step is quite known by now so i won't detail it, there's a lot of info on that in other threads), take OTA's, eat candies... whatever you like
Click to expand...
Click to collapse
Can you give me some more detalis (links about that?)
Kind regards from Poland
Pietia.
pawlikp100 said:
In the section - how to use it (point 5) we can read:
Can you give me some more detalis (links about that?)
Kind regards from Poland
Pietia.
Click to expand...
Click to collapse
you must:
1. Downgrade the bios using the restoring tool (you mention "Yoga Tab 2 Pro" so you must use the 1380 version), and you must do that so you can flash KitKat stock rom on your tablet (if you try to flash directly, without the bios downgrade it will fail and you will soft-brick your tablet)
2. After restoring the bios, download from here your stock KitKat rom and extract
3. Flash using Intel Phone Flash Tool (open with it the "flash.xml" from the target_bin directory of the extracted archive). the Intel Tool can be found in the tools directory of the same extracted archive.
4. After you finished sotck KitKat flashing, remember to set your contry code (####6020# in Contacts), also it's not necessary to make your settings wifi etc before you set your country code as they will anyway going to be deleted (a factory reset is performed on country code setting operation). if you don't set a country code you will fail when upgrading to Lollipop.
5. Update using the Lollipop OTA or stay on KitKat
Thank you for explanation.
I download system, installed Phone Flash Tool, open it and chose flash.xml, but after connecting my YT2Pro I can not see device specific with "Start to flash" button in the Device list area of the program.
see below screen. Is this screen looks as it should? (ups, unfortunately I can not post images, because I am new user).
One more thing, tablet should be turned off during flashing?
Right now my tablet is connected to the laptop by USB. It is not switched off and charging is in progress (laptop does not see my tablet as an additional disc/device).
Is above status correct?
So i rooted my Yoga tab just a few hours ago and it went great. Booted back in and installed some apps and started to remove some apps. I rebooted the tablet shortly after and got stuck in some bootloop at the title screen. (Lenovo for those who do) It boots three times and then its just black with some flickering.
I got in to recovery and did (probably really, really stupid) a reset of data and cache. figure that will solve everything. It didn't. But it did not however make it works. Still the same bootloop.
if i leave it on for like 10 minutes, the screen where you choose language and time comes up but i can't press anything. Then everything goes black and flickers.
I was on stock kitkat when this happened and I've searched all around the internet for answers. I don't understand half of the things a read. Reflashing a new bios and fastboot what not. Almost every link in every thread is dead.
I need help and i hope you can help me with a solution too how i can get my tab up and running.
I have no back ups what so ever because i'm stupid so i need just hard reset everything not worrying about saving anything. (didnt have anything on the tab anyways)
Info again:
Yoga Tab 2 10.1 1050F
Stock Kitkat
Sirboscos said:
So i rooted my Yoga tab just a few hours ago and it went great. Booted back in and installed some apps and started to remove some apps. I rebooted the tablet shortly after and got stuck in some bootloop at the title screen. (Lenovo for those who do) It boots three times and then its just black with some flickering.
I got in to recovery and did (probably really, really stupid) a reset of data and cache. figure that will solve everything. It didn't. But it did not however make it works. Still the same bootloop.
if i leave it on for like 10 minutes, the screen where you choose language and time comes up but i can't press anything. Then everything goes black and flickers.
I was on stock kitkat when this happened and I've searched all around the internet for answers. I don't understand half of the things a read. Reflashing a new bios and fastboot what not. Almost every link in every thread is dead.
I need help and i hope you can help me with a solution too how i can get my tab up and running.
I have no back ups what so ever because i'm stupid so i need just hard reset everything not worrying about saving anything. (didnt have anything on the tab anyways)
Info again:
Yoga Tab 2 10.1 1050F
Stock Kitkat
Click to expand...
Click to collapse
Hello !
You should try to flash stock KitKat Lenovo Firmware with IntelFlashTool !
Also, you should install some intel drivers : Intel® USB Driver for Android* Devices & iSocUSB-Driver-Setup .
KitKat Firmware must be available under Lenovo site !
Put your device in DNX mode ( press & keep at the same time all three hardware buttons , when device reboot just release power button ... you will see soon "Fastboot starting..." , right now you can release volume up & down ) - connect your device via USB with your desktop and start Intel Flash Tools . Just unpack stock KitKat Lenovo Firmware and select under Intel Flash Tools , Flash file : "flash.xml" from Lenovo Firmware !
Good luck !
surdu_petru said:
Hello !
You should try to flash stock KitKat Lenovo Firmware with IntelFlashTool !
Also, you should install some intel drivers : Intel® USB Driver for Android* Devices & iSocUSB-Driver-Setup .
KitKat Firmware must be available under Lenovo site !
Put your device in DNX mode ( press & keep at the same time all three hardware buttons , when device reboot just release power button ... you will see soon "Fastboot starting..." , right now you can release volume up & down ) - connect your device via USB with your desktop and start Intel Flash Tools . Just unpack stock KitKat Lenovo Firmware and select under Intel Flash Tools , Flash file : "flash.xml" from Lenovo Firmware !
Good luck !
Click to expand...
Click to collapse
Thanks for your help.
Unfortunately, i think it made i made it worse
The flash stopped at 70% and now i'm stuck in a bootloop at the first power up screen.
Can you still get in to fast boot,and are you sure you were on KitKat rom.
try and start your tab in normal fastboot mode (from the recovery console select 'reboot to bootloader' or use from power off the combo keys Pwr & Vol+ or Pwr & vol- one of these two should bring you to the Fastboot/Droidboot menu) and from there tell me what the ifwi entry says... BLADE_21....
Problem solved!
I had to check "Force fastboot sparsing" and change it to 500MB in FlashTool and then it worked. Everything is now up and running.
Thanks for your replies.
corasman said:
Can you still get in to fast boot,and are you sure you were on KitKat rom.
try and start your tab in normal fastboot mode (from the recovery console select 'reboot to bootloader' or use from power off the combo keys Pwr & Vol+ or Pwr & vol- one of these two should bring you to the Fastboot/Droidboot menu) and from there tell me what the ifwi entry says... BLADE_21....
Click to expand...
Click to collapse
hey up dude, like a pleb i didn't flash the stock boot-loader to my tab before taking the latest update. Have you got a copy of the stock lollipop boot-loader? Or the files to downgrade to kitkat to start again?
Cheers mush
Edit- I flashed the patched esp and then tried to flash a copy of the bootx64.efi but it failed. But it has rebooted in to twrp, i have restored my backup and its booted... sweet
Edit 1 - Defo need a stock boot-loader. Can anyone help
Hi Rob
These files I copied from various threads on here.
They are on my g/drive,if they are any good to you or anyone else.
http://tinyurl.com/zdr92pf
http://tinyurl.com/zmmaww5
http://tinyurl.com/zgt7sjo
http://tinyurl.com/hjy4kks
http://tinyurl.com/jhrjscj
corasman said:
hi rob
these files i copied from various threads on here.
They are on my g/drive,if they are any good to you or anyone else.
http://tinyurl.com/zdr92pf
http://tinyurl.com/zmmaww5
http://tinyurl.com/zgt7sjo
http://tinyurl.com/hjy4kks
http://tinyurl.com/jhrjscj
Click to expand...
Click to collapse
can i use restore bios.exe for lenovo 1050l? Or it is just for f?
Bios Downgrade Tool Query
Hi mate, sorry for such a late reply but I'm struggling trying to get the bios downgrade tool to work on my tablet. Its plugged in and the "fast boot starting" message is showing but when I click on the tool on my pc and start it, nothing changes with the tablet. Is there an obvious step I am missing? Kind of new to this.
Thanks
Hello chaps. Random question. I have searched and searched for an answer but cant find a 100% reliable one. Can our 1050F 10.1 inch run Ethernet on the OTG? I have been liaising with Lenovo tech support via email for 5 weeks now and they are certain it can but I cant get it going with my Plugable OTG/Ethernet adaptor. So, what say you folks? Thanks.
On the Lollipop.
corasman said:
Hi Rob
These files I copied from various threads on here.
They are on my g/drive,if they are any good to you or anyone else.
http://tinyurl.com/zdr92pf
http://tinyurl.com/zmmaww5
http://tinyurl.com/zgt7sjo
http://tinyurl.com/hjy4kks
http://tinyurl.com/jhrjscj
Click to expand...
Click to collapse
Can somebody share those files? I am looking for 1050f-esp-patched.img over all Internet , and all links are broken.
File is needed to unlock bootloader on kitKat version. Thanks in advanced!
rvsrf said:
Can somebody share those files? I am looking for 1050f-esp-patched.img over all Internet , and all links are broken.
File is needed to unlock bootloader on kitKat version. Thanks in advanced!
Click to expand...
Click to collapse
Perhaps see here?
Lenovo Yoga Tablet 2 - Официальные прошивки - 4PDA
Lenovo Yoga Tablet 2 - Официальные прошивки
4pda.to
Hello,
A friend give to me his Yoga2 1050F Tab, because it's bricked...
"After a kind of upgrade he said"
So, here's the situation,
Tab is really bricked, stuck on Lenovo Android Screen.
I've tried to factory restore, no success.
I've searched all the web after factory image to flash, I've found 3 of them... But nothing works !!
The 1st one, the only we can still found here, is a factory image from 2015. And the result is, no more lenovo android screen, i'm stuck on a kind of Bios (?) And can't do anything more...
2nd one, (YT2-1050F_S100196_151123_ROW-fastboot), best result, back to an android boot, but stuck on recovery screen, without any possibility to boot...
3rd one (YT2-1050F_S0198_150422_ROW) impossible to flash, it's always failed at "flash easyimage.zip" step.
Other thing, I don't know what xml file I need to use (flash, flash-blankphone, flash-factory ... )
Here, i'm totally lost. Tab is stuck, And I've no idea what can I do next...
Maybe here anyone can help me ?
Many Many thanks !
Hello,
It seem's i got the same problem.
The tablet downloaded an upgrade by it's own.
The tablet rebooted alone and the try to apply the upgrade but never success.
Now i'm booting on a BIOS type screen.
"VALLEYVIEW C0 PLATFORM"
I can access to different options but the tablet is not reconized by my PC anymore.
I can flash anything on it.
If someone have a solution, it would be great !
Hey @NeedaVirus,
Sorry to hear that the device is bricked. Just this past weekend, I've been sifting through all my old resources because a recent OTA (Yep, a 2020 update!) left both me and my partner's 1050F devices in an unbootable state. You can see we're not alone by checking out the thread on the Lenovo forums (https://forums.lenovo.com/t5/Androi...Tablet-2-1050f-system-update-2020/m-p/5007166). Unfortunately a large number of the very helpful resources on xda seem to have been redacted/removed over the past few years, which leaves a few people scratching their heads (I was for a while too).
Basically, the way I've always done this on the 1050F (and what worked yesterday again), is as follows:
1. Install the "IntelAndroidDrvSetup1.10.0". Google will find this easy enough.
2. Install the flash tool. Nowadays, "Intel Platform Flash Tool Lite 5.8.4.0" (might also be called Phone Flash Tool Lite v5.8.4.0 and again google will find this for you) seems to come bundled with all required drivers, so it's a simple process to install.
3. Plug the device in and put it in DNX mode. This mode is achieved by holding vol up + vol down and pressing the power button until the device vibrates. When you feel the buzz, let go of power but hold the other two until you see a "Fastboot starting..." message on a black screen. This is DNX mode.
4. Restore stock KitKat bios using the "restore-kitkat-bios-830-1050-v2" tool. This one might take a little finding and I'm not sure if sharing it here is acceptable any more. Provided the device is plugged in and in DNX mode (and you have the Intel Platform Flash Tool closed too), it's just a matter of running the bios restore tool and following the prompts. Make sure the flash tool is running on your local drive (usually C).
5. Once the bios is pushed, we need to restore the stock KitKat ROM using the platform flash tool.
First we need to set up the Platform Flash Tool, so open that and select "File" -> "Options". Under "Flash options" tick the "Force fastboot sparsing" option and select "500MB" for the size.
6. Now, we want to use the "YT2-1050F_S0198_150422_ROW" image and you'll need to extract it first. It sounds like you already have the right archive file for this, which is good because I'm not sure if a copy still exists here still.
In the Platform Flash Tool, hit "Browse" and the file we're looking for is "target_bin\flash.xml". Select that. (Side note: I suspect that if your device has been updated to Lollipop in the past, you wouldn't have had any luck flashing this rom without rolling the bios back first).
7. Put the device into DNX mode again, and the Platform Flash Tool should see it (a "Baytrail" device is listed).
Now it's just a matter of starting the flash process by clicking the button.
8. Once the device is flashed, you'll need to reboot it (via the device) but wait for the flash process to report 100% first. Hitting the device power button is the way to confirm this reboot btw. It might take a few mins to get into Android here. This is normal.
9. Now, the device will boot into stock KitKat. We need to set the region though:
Open contacts, add new contact (only if you have none, we just need one).
Now, using the contact search, enter ####6020# and you'll be prompted to select your region. The device will reboot and you'll need to set a few things up again.
10. Run all the OTA updates to get right up to date. Just do this via android itself.
Optional: Do any other crazy bootloader unlocks, roots as desired. A lot of the original resources have been removed for these processes, but where there's a will, there's a way.
I'm sure there are other shortcuts to this process too. I think tontonfraguer was able to just flash a newer rom directly to resolve his bootloop, judging by his forum post over on the Lenovo thread. This is just the process I use, any feedback/improvements are most welcome!
Hopefully it helps someone being hit by the recent bootloops.
Cheers
OMG ! OMG ! OMG !!!
Man, you're THE MAN !!!
I've followed all your explanations, and... IT WORKS !!!
Yes it was hard to find again the "restore-kitkat-bios-830-1050-v2" (China links to Russian Servers...) But I've finded it !
Many many MAAAAANYYYY Thanks my friend !!!
Thanks a lot !
And thanks a lot to All XDA DEV !
dallivadr said:
Hey @NeedaVirus,
Sorry to hear that the device is bricked. Just this past weekend, I've been sifting through all my old resources because a recent OTA (Yep, a 2020 update!) left both me and my partner's 1050F devices in an unbootable state. You can see we're not alone by checking out the thread on the Lenovo forums (https://forums.lenovo.com/t5/Androi...Tablet-2-1050f-system-update-2020/m-p/5007166). Unfortunately a large number of the very helpful resources on xda seem to have been redacted/removed over the past few years, which leaves a few people scratching their heads (I was for a while too).
Basically, the way I've always done this on the 1050F (and what worked yesterday again), is as follows:
1. Install the "IntelAndroidDrvSetup1.10.0". Google will find this easy enough.
2. Install the flash tool. Nowadays, "Intel Platform Flash Tool Lite 5.8.4.0" (might also be called Phone Flash Tool Lite v5.8.4.0 and again google will find this for you) seems to come bundled with all required drivers, so it's a simple process to install.
3. Plug the device in and put it in DNX mode. This mode is achieved by holding vol up + vol down and pressing the power button until the device vibrates. When you feel the buzz, let go of power but hold the other two until you see a "Fastboot starting..." message on a black screen. This is DNX mode.
4. Restore stock KitKat bios using the "restore-kitkat-bios-830-1050-v2" tool. This one might take a little finding and I'm not sure if sharing it here is acceptable any more. Provided the device is plugged in and in DNX mode (and you have the Intel Platform Flash Tool closed too), it's just a matter of running the bios restore tool and following the prompts.
5. Once the bios is pushed, we need to restore the stock KitKat ROM using the platform flash tool.
First we need to set up the Platform Flash Tool, so open that and select "File" -> "Options". Under "Flash options" tick the "Force fastboot sparsing" option and select "500MB" for the size.
6. Now, we want to use the "YT2-1050F_S0198_150422_ROW" image and you'll need to extract it first. It sounds like you already have the right archive file for this, which is good because I'm not sure if a copy still exists here still.
In the Platform Flash Tool, hit "Browse" and the file we're looking for is "target_bin\flash.xml". Select that. (Side note: I suspect that if your device has been updated to Lollipop in the past, you wouldn't have had any luck flashing this rom without rolling the bios back first).
7. Put the device into DNX mode again, and the Platform Flash Tool should see it (a "Baytrail" device is listed).
Now it's just a matter of starting the flash process by clicking the button.
8. Once the device is flashed, you'll need to reboot it (via the device) but wait for the flash process to report 100% first. Hitting the device power button is the way to confirm this reboot btw. It might take a few mins to get into Android here. This is normal.
9. Now, the device will boot into stock KitKat. We need to set the region though:
Open contacts, add new contact (only if you have none, we just need one).
Now, using the contact search, enter ####6020# and you'll be prompted to select your region. The device will reboot and you'll need to set a few things up again.
10. Run all the OTA updates to get right up to date. Just do this via android itself.
Optional: Do any other crazy bootloader unlocks, roots as desired. A lot of the original resources have been removed for these processes, but where there's a will, there's a way.
I'm sure there are other shortcuts to this process too. I think tontonfraguer was able to just flash a newer rom directly to resolve his bootloop, judging by his forum post over on the Lenovo thread. This is just the process I use, any feedback/improvements are most welcome!
Hopefully it helps someone being hit by the recent bootloops.
Cheers
Click to expand...
Click to collapse
Cant find anywhere to download restore-kitkat-bios-830-1050-v2 file. Any chance you could pm a Google drive link?
Thanks
Sansiro2 said:
Cant find anywhere to download restore-kitkat-bios-830-1050-v2 file. Any chance you could pm a Google drive link?
Thanks
Click to expand...
Click to collapse
Managed to sort it out - many thanks for your guide. One thing to note is the Kitkit restore file needs to be in the root of the C drive and also the file for the flash in my case was the flash.xml file
Glad the post helped you guys out and that you were able to get back up and running. If the post was helpful, why not click the 'thank' button under my post
Hi Hi Hiiii
For those who need the famous "restore-kitkat-bios-830-1050-v2"
HERE'S THE LINK (Personal re-upload) : https://drive.google.com/file/d/13vV6fpNAbWWZUk9_fzmJpMAMax2tlyyB/view?usp=sharing
Be aware that you probably need to do this if your OTA updates Fails :
If system update fails do the following:
1. Flash stock firmware
2. Optionally you can wipe user data (I never did that) from DROIDBOOT
3. Go to contacts manager. Create some dummy contact if list is empty.
4. Go to Search / Find Contacts and enter ####6020#. It will ask you to select country code (first two latin letters, ignore Chinese).
5. Select what you want, then reboot.
6. Go to System Update
7. Install OTA update
(Original Post here : https://forum.xda-developers.com/showpost.php?p=57846051&postcount=233)
Enjoy Friends
NeedaVirus said:
Hi Hi Hiiii
For those who need the famous "restore-kitkat-bios-830-1050-v2"
HERE'S THE LINK (Personal re-upload) : https://drive.google.com/file/d/13vV6fpNAbWWZUk9_fzmJpMAMax2tlyyB/view?usp=sharing
Be aware that you probably need to do this if your OTA updates Fails :
If system update fails do the following:
1. Flash stock firmware
2. Optionally you can wipe user data (I never did that) from DROIDBOOT
3. Go to contacts manager. Create some dummy contact if list is empty.
4. Go to Search / Find Contacts and enter ####6020#. It will ask you to select country code (first two latin letters, ignore Chinese).
5. Select what you want, then reboot.
6. Go to System Update
7. Install OTA update
(Original Post here : https://forum.xda-developers.com/showpost.php?p=57846051&postcount=233)
Enjoy Friends
Click to expand...
Click to collapse
Thanks - when setting the country code if you get the 'ERROR : could not read factory ota patch from sd card,or the patch is not correct.' then you need to take the easyimage.zip from the extracted rom folder and copy it on the sdcard (on the root of it not in some folder) then try again (with at least 30% battery level).
Guys,
If someone wants to ROOT his tablet, I can write the procedure. (Many try for me before it really works...)
See ya !
hi everyone , i hope someone be able to help me with this , i also just got this tablet as one that does not even turn on , ive played with it a bit and managed to get some writings on the display, then i found this topic here and tried to follow as instructed, nothing happens, and the screen with fastboot starting goes off. any suggestion ?
thank you in advance.
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THANK YOU!!
i have been battling with the TY2 1380f for a whole week with just a black screen. This helped as I was able to find the kit kat restore for the 1380 and following your guide, got things back to normal.
Life Saver!!!
dallivadr said:
Hey @NeedaVirus,
Sorry to hear that the device is bricked. Just this past weekend, I've been sifting through all my old resources because a recent OTA (Yep, a 2020 update!) left both me and my partner's 1050F devices in an unbootable state. You can see we're not alone by checking out the thread on the Lenovo forums (https://forums.lenovo.com/t5/Androi...Tablet-2-1050f-system-update-2020/m-p/5007166). Unfortunately a large number of the very helpful resources on xda seem to have been redacted/removed over the past few years, which leaves a few people scratching their heads (I was for a while too).
Basically, the way I've always done this on the 1050F (and what worked yesterday again), is as follows:
1. Install the "IntelAndroidDrvSetup1.10.0". Google will find this easy enough.
2. Install the flash tool. Nowadays, "Intel Platform Flash Tool Lite 5.8.4.0" (might also be called Phone Flash Tool Lite v5.8.4.0 and again google will find this for you) seems to come bundled with all required drivers, so it's a simple process to install.
3. Plug the device in and put it in DNX mode. This mode is achieved by holding vol up + vol down and pressing the power button until the device vibrates. When you feel the buzz, let go of power but hold the other two until you see a "Fastboot starting..." message on a black screen. This is DNX mode.
4. Restore stock KitKat bios using the "restore-kitkat-bios-830-1050-v2" tool. This one might take a little finding and I'm not sure if sharing it here is acceptable any more. Provided the device is plugged in and in DNX mode (and you have the Intel Platform Flash Tool closed too), it's just a matter of running the bios restore tool and following the prompts. Make sure the flash tool is running on your local drive (usually C).
5. Once the bios is pushed, we need to restore the stock KitKat ROM using the platform flash tool.
First we need to set up the Platform Flash Tool, so open that and select "File" -> "Options". Under "Flash options" tick the "Force fastboot sparsing" option and select "500MB" for the size.
6. Now, we want to use the "YT2-1050F_S0198_150422_ROW" image and you'll need to extract it first. It sounds like you already have the right archive file for this, which is good because I'm not sure if a copy still exists here still.
In the Platform Flash Tool, hit "Browse" and the file we're looking for is "target_bin\flash.xml". Select that. (Side note: I suspect that if your device has been updated to Lollipop in the past, you wouldn't have had any luck flashing this rom without rolling the bios back first).
7. Put the device into DNX mode again, and the Platform Flash Tool should see it (a "Baytrail" device is listed).
Now it's just a matter of starting the flash process by clicking the button.
8. Once the device is flashed, you'll need to reboot it (via the device) but wait for the flash process to report 100% first. Hitting the device power button is the way to confirm this reboot btw. It might take a few mins to get into Android here. This is normal.
9. Now, the device will boot into stock KitKat. We need to set the region though:
Open contacts, add new contact (only if you have none, we just need one).
Now, using the contact search, enter ####6020# and you'll be prompted to select your region. The device will reboot and you'll need to set a few things up again.
10. Run all the OTA updates to get right up to date. Just do this via android itself.
Optional: Do any other crazy bootloader unlocks, roots as desired. A lot of the original resources have been removed for these processes, but where there's a will, there's a way.
I'm sure there are other shortcuts to this process too. I think tontonfraguer was able to just flash a newer rom directly to resolve his bootloop, judging by his forum post over on the Lenovo thread. This is just the process I use, any feedback/improvements are most welcome!
Hopefully it helps someone being hit by the recent bootloops.
Cheers
Click to expand...
Click to collapse
hello
hoooman008 said:
hi everyone , i hope someone be able to help me with this , i also just got this tablet as one that does not even turn on , ive played with it a bit and managed to get some writings on the display, then i found this topic here and tried to follow as instructed, nothing happens, and the screen with fastboot starting goes off. any suggestion ?
thank you in advance.View attachment 5176433View attachment 5176431
Click to expand...
Click to collapse
any help would be greatly appreciated
hoooman008 said:
any help would be greatly appreciated
Click to expand...
Click to collapse
on your screen, attached, at device manager, i can see the driver for intel adb fastboot blabla is not correctly installed, try:
1. restarting windows while holding SHIFT button till it restarts
2. go through advanced restart option and select startup settings
3. when it reboots and offers to select in black-white options 1-8, select wit button F7 the "driver signature.." part
( you are now allowing to installing unsigned drivers )
4. wehn it reboots, INSTALL intel plattform flash tool.exe again and re-install everyting, this time u will see windows pop-ups in red notifiying you installing unsigned extra extra drama drivers, say yes to all of them
5. flash again, using above instructions, make sure to change intel plattform flash tool settings to force flash 500MB
6. go everyting that is instructed above - step by step - through and report, i had exact same problem and solved it remembering the driver-stuffs weirdness on windows, still not a problem at all, just anoying extra steps
NeedaVirus said:
Hello,
A friend give to me his Yoga2 1050F Tab, because it's bricked...
"After a kind of upgrade he said"
So, here's the situation,
Tab is really bricked, stuck on Lenovo Android Screen.
I've tried to factory restore, no success.
I've searched all the web after factory image to flash, I've found 3 of them... But nothing works !!
The 1st one, the only we can still found here, is a factory image from 2015. And the result is, no more lenovo android screen, i'm stuck on a kind of Bios (?) And can't do anything more...
2nd one, (YT2-1050F_S100196_151123_ROW-fastboot), best result, back to an android boot, but stuck on recovery screen, without any possibility to boot...
3rd one (YT2-1050F_S0198_150422_ROW) impossible to flash, it's always failed at "flash easyimage.zip" step.
Other thing, I don't know what xml file I need to use (flash, flash-blankphone, flash-factory ... )
Here, i'm totally lost. Tab is stuck, And I've no idea what can I do next...
Maybe here anyone can help me ?
Many Many thanks !
Click to expand...
Click to collapse
Download Lenovo's official "Rescue and Smart Assistant" it reflashes stock rom for you.