[Q] urgently need a downgrade rom!!!!!Thank you very much - Thinkpad Tablet General

Sorry for my poor English. My lenovo k1 can't start up!!!
I have upgraded my lenovo k1 to 4.1.2 and it is working smoothly.
However, since I want to use a app that need to modify the model,
I rooted k1 by modifing the model message in build.propin system file.
But the app was still not work, I directly use the original build.prop to cover the modified one.
After that, I restarted my k1, it stoped after the lenovo logo appearing. It couldn't enter the UI.
But it could still enter APX model.
Can anyone provide me a downgrade rom? Thank you very much!!~~~~

Related

[Q] [Help] Don't know What's the model of my s4

Hi guys,
I've bought a used s4, and after some time spended knowing the new cell phone I saw on the boot screen "Galaxy GT-I9515L" and start to look for a custom rom to this model. But there isn't any one right?
But there's some weird thing , in the back part of the cell where's located the battery is written model "I9505" and the box that came with it have the same thing, "model "i9505".
But when I tried to install a custom or the original rom for this version using the Odin an error message appears and I can't install. Then I tried to put a original lolipop version to "I9515L" and works fine whitout problems and errors.
So what can it be? Maybe the older owner had put an wrong rom? If so, how can I fix this?
Sorry for my bad English. Hope that you guys can understand and help me.
Thanks
Boot into download mode. There is your model.
Ignore everything else, just look at the download mode.

[OTA] Yoga Tablet 2 830F - Android 5.0.1 - Lollipop ota update 2

Lenovo Yoga Tablet 2 830F - Android 5.0.1 - Lollipop ota update 2 from Lenovo (20/7/15)
Filename: YT2-830F_USR_S000195_1504220230_WW21_ROW_TO_YT2-830F_USR_S100067_1507101258_WW52_ROW.zip
Size: 1,15 GB
Link: https://drive.google.com/file/d/0B1j7Qr4n1Z15U3pXMTdNdHRfd1E
INFO !!!
My first update OverTheAir with this file was a fail. Only black screen after update and reboot.
(I think because i did not change the country code after flashing KitKat a few weeks ago)
(If the update stuck at 100% in recovery you also have to reflash KitKat ROM)
So i flashed original 830F KitKat ROM via "PhoneFlashTool" with this ROM / Tutorial:
https://cloud.mail.ru/public/Z2US9gd..._150422_ROW.7z
http://www.android-hilfe.de/thema/tutorial-wie-installiere-ich-das-kommende-update-wenn-es-nicht-funktioniert-fuer-alle-varianten.697884/
Changed the "Country Code Setting" via ContactApp ####6020# to "de" (select your language).
And do not update any app like Chrome etc. when it reboots again after.
Then download and start the Lollipop 5.0.1 Update.
Lollipop upgrade reboots into recovery and stays 5min. at 100%.
Then reboots into some intel-flash mode and stays for 4min.
After it reboots into Lollipop OS... :cyclops:
INFO 2 !!! (if you installed Lollipop update 1 first and now restoring/flashing of KitKat ROM fails)
matshias said:
I have the same problem, only that I had the first Lollipop version for 1050F with root and then got the new Lollipop update. The Kitkat version fails to flash. But here is what helped: Go to this post http://forum.xda-developers.com/thi...-8-10-13-3-t2930428/post60490907#post60490907
and download the LtoKKxml.7z and copy the files into the kitkat firmware folder and then flash using flash-LtoKK-PVT-810.xml
I had to remove the parts of the XML that erase and format data. Then it worked
After that I could flash KitKat!!
Click to expand...
Click to collapse
LOLLIPOP ROOT
So easy, follow steps 1-8: http://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
I download "IntelAndroid-FBRL-05-16-2015-PTR.7z" and "UPDATE-SuperSU-v2.46.zip" and it worked with Lollipop 5.0.1.
Make sure you have all the Android, Intel, ADB driver stuff installed (for me win7 installed another one at rooting?)
!!! USE OPTION T4 FOR LOLLIPOP ROOT !!!
.
5m00v3 said:
2 hours ago i`ve just received the new official Android Lollipop Update from Lenovo via System-Upgrade!
Filename: YT2-830F_USR_S000195_1504220230_WW21_ROW_TO_YT2-830F_USR_S100067_1507101258_WW52_ROW.zip
Size: 1,15 GB
Country: Germany
I have made a copy from the ZIP and can upload, if someone point me to an fast and simple upload-service...
I install now and report soon...
Click to expand...
Click to collapse
Yup I got the notice a few mins ago. I also got it many weeks ago when it bricked my yoga 2 8.3
Advice, when it says Updating....100%. Leave it alone. Last time I thought it was done since it said 100% for many many minutes. So i thought it was stuck or bricked. Just let it sit. It will reboot by itself and restart to the next phase.
It will also sit on the Lenovo android screen for quite a while before it goes to Android is upgrading.
Yes, i got problems too!
- It stays for 8min. at 100%. I leave it alone...
- Then 4 chinese Buttons showed up.
- I pressed the first (reboot i think)
- it reboots, it shows the white lenovo text, then black screen with background light on.
- i waited 10min., no change or start into OS.
- then i pressed 15sek power off, light goes off.
- if i power on, again white lenovo text, then black screen with background light on. nothing... ???
i reboot into recovery and wiped cache, nothing.
i think i will make update from SD card again... see if something happend
Update again from SD dont work! it says:
"/system/app/Chrome.apk" has unexpected contents...
E: Error in /sideload/package.zip
SUCCESS, LOLLIPOP IS WORKING!!!
I Have restored original KitKat ROM via "PhoneFlashTool" with this ROMs / Tutorial:
https://cloud.mail.ru/public/Z2US9gd6f2ei/YT2-830F_S0195_150422_ROW.7z
http://www.android-hilfe.de/thema/t...icht-funktioniert-fuer-alle-varianten.697884/
This time i´ve made the "Country Setting" via ContactApp ####6020# to "DE" befor download and upgrade!
And i have aborted the automatic PlayStore updates for Chrome etc...
Lollipop upgrade reboots into recovery and stays 5min. at 100%.
Then reboots into some intel-flash mode and stays for 4min.
After it reboots into Lollipop OS...
So can you boot back into android? Even after you wiped it? If not and you can't do anything, call Lenovo. I think only they can fix it.
If you can get back into android, I would suggest waiting for the System update notice. That's what showed up this morning for me. I didn't have any chinese buttons. I didn't have to touch anything, just wait for a really long time which is unnerving because I don't know status.
I flashed the KitKat Version again, changed country code, and installed the new Lollipop 5.0.1 update again.
This time there are no chinese buttons to press. (i think because changing the country code befor update).
Lollipop is great, the display is much faster while scrolling in chrome etc.
Interesting. I wonder what the difference between the versions of the country codes are. Mine bricked last time it was updated to lollipop. When I got the repair back, it was back to kitkat and I couldn't update until this morning.
Glad to hear you got it fixed. A few of my apps also stopped working and I had to clear the cache to get it working again after the update.
There are some differences in pre-installed apps. I did not changed the country code few weeks ago because there are some apps in german setup i do not want...
**** Edit *****
Added a Link on top
Added ROOT on top
mine is failing on Lenovo Recovery. It will go to 100% and failed. I had to reboot. FYI, mine is rooted.
sdho said:
mine is failing on Lenovo Recovery. It will go to 100% and failed. I had to reboot. FYI, mine is rooted.
Click to expand...
Click to collapse
You need to flash the stock kk firmware.
http://forum.xda-developers.com/showthread.php?p=61955463
From my LG-G3 running Jasmine8.0/Skydragon Kernel 4.2
Yes, It looks like I cannot just upgrade from rooted KK. I had to go back to stock kk firmware provided in the OP's link and follow step by step instructions using google translate. thanks workdowg and 5m00v3.
anyone missing 5GHz band Wi-Fi support with country code DE? I cannot seem to change the country code once it has been upgraded to Lollipop.
sdho said:
anyone missing 5GHz band Wi-Fi support with country code DE? I cannot seem to change the country code once it has been upgraded to Lollipop.
Click to expand...
Click to collapse
Lollipop does not longer provide the option to manual change band... it will auto connect to 5ghz if possible.
It has nothing to do with country code DE. You can check your connection 2,4/5ghz with the app "wifi band".
My YT2 connects automatic to my 5ghz. And i have 2 networks (2,4 + 5ghz) with same networkname.
Hi,
I have the same problem, black screen after OTA Update, but now, impossible to acces to recovery, dirrectly a black screen after "Lenovo" logo, have you an ideas ?
thanks
---------- Post added at 02:10 PM ---------- Previous post was at 01:58 PM ----------
Eagledig said:
Hi,
I have the same problem, black screen after OTA Update, but now, impossible to acces to recovery, dirrectly a black screen after "Lenovo" logo, have you an ideas ?
thanks
Click to expand...
Click to collapse
Okay, I found the solution ! Make the tablet totaly Off, press volume up and volume down, than press power bouton, you directly acces to fastboot mode, and here you can flash with Phone Flash Tool.
Hi,
thanks for the timming TIPs !!
I can't believe LENOVO dosen't take care of this basic things !!
Thanks to you Lollipop is running on my beloved Yoga.
A little tip while we are avaiting 5.1,
Go in Parameter
Activate DEV options : About this tablet, touch 7 times on "Build Version", it will activate the Developper Menu in parameters
Go to Developpers Option (in PArameter)
UNCheck NuPlayer in multimedia.
--> REBOOT your device
It will allow you to avoid Lagging into the UI and apps.
Note that in 5.1 NuPlayer has been replaced by a bugfree version.
Now my last issue is to root the Lenovo...
I tried the rooting method : http://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
but aleas I'm stick with an ugly : E: failed to verify whole-file signature
when trying to apply latest SuperSu when in recovery mode...
Tried with stock 2.46 and BETA 2.49.... same result.
Your help is kindly requested to solve this....
pregis said:
Now my last issue is to root the Lenovo...
I tried the rooting method : http://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
but aleas I'm stick with an ugly : E: failed to verify whole-file signature
when trying to apply latest SuperSu when in recovery mode...
Tried with stock 2.46 and BETA 2.49.... same result.
Your help is kindly requested to solve this....
Click to expand...
Click to collapse
Googling ”E: failed to verify whole-file signature" and each one talks about a corrupt download... They are old posts from 2013 or so but they could be right.
Try this version 2.40. You can update in the Play store once your rooted.
https://www.dropbox.com/s/0xbu7ve3haha8gw/UPDATE-SuperSU-v2.40.zip?dl=0
Sent from my YOGA Tablet 2-1050F
Thanks for your help.
I tried the 2.40 version triple check the zip file, aleas same error...
Also there are not only corruptions problems related... some are related to CMW version problem and lack of "unsign" option..
Again thanks for the 2.40 link. If you have any suggestion I'm all ears.
There is a new update, to yt2-830f_usr_s100191_1511230623_ww52_row
anyone tried it already?
Looks like it requires going back to stock KitKat again just to update it.
Can't really be bothered trying it.

Yoga Tab 2 830f Is there a soft brick fix?

I've searched but apparently it seems like most of the answers have been deleted or redacted.
My problem...
I was just given a Yoga Tab 2 from my sister who has given up on trying to fix it.
The tab was on 5.01 and rooted when she got a system update. She ran the update but now the tablet freezes during/after the boot animation.
It will go into fastboot but is not recognized by ADB.
She tried to install the original Lollipop firmware through recovery but ended up getting a system 7 error.
This is exactly what I see when in the bootloader screen
FASTBOOT MODE
PRODUCT_NAME - YT2
VARIANT - YOGA Tab1
HW_VERSION -
BOOTLOADER VERSION - unknown
IFWI VERSION - Blade_21.x64.0005.R00.1504101447 FFD8_X64_R_
SERIAL NUMBER - BaytrailD454B***
SIGNING - ?
SECURE_BOOT - ?
E: No valid installer medium found
I know nothing about Lenovo and how they do things but I know that with HTC you have to go back to 100% locked and stock before you can install an OTA. If you do try the OTA usually just won't install but unfortunately this thing seems to be at least soft bricked.
Is there a way for me to maybe roll back? I've read about people going back to KK in order to get the LP OTA but all links to the KK firmware are gone.
Thanks a lot, I appreciate any help I can get...
BTW, She is under warranty but of course she was rooted and is worried that repair will cost her almost as much as she paid for the Tab when they realize and void her warranty.
If its the same as the 1050f try these files.
http://tinyurl.com/zmmaww5
http://tinyurl.com/zgt7sjo do not bother about the warning with this one, its something to do with its size, just download it.
corasman said:
If its the same as the 1050f try these files.
http://tinyurl.com/zmmaww5
http://tinyurl.com/zgt7sjo do not bother about the warning with this one, its something to do with its size, just download it.
Click to expand...
Click to collapse
Thank you. I used the Restore KitKat Bios you posted along with an 830F specific KitKat firmware from the Russian Lenove site. Worked fine after editing the flash.xml file to allow for a larger system.img file.
The tablet is now back from the dead. Unfortunately it gets the 5.0 update but fails in the Lenovo Recovery when trying to flash the OTA. It gets to 100%, stays like that for a bit and then a blue X saying flash failed. After that I'm back to a black screen and have to reflash the kitkat firmware to get up and running again.
I have no idea why the OTA flash constantly fails but I guess I have to do a bit more research and hope I can get her up to date.
Did you set the country code , without setting it updates fail.
Look at this advice from ionioni to me about setting the code
http://forum.xda-developers.com/thinkpad-tablet/general/set-country-code-t3308024
corasman said:
Did you set the country code , without setting it updates fail.
Look at this advice from ionioni to me about setting the code
http://forum.xda-developers.com/thinkpad-tablet/general/set-country-code-t3308024
Click to expand...
Click to collapse
Outstanding!!! I entered the code in contacts and it gave me a menu of different countries to choose from. I Chose US and she rebooted, went into recovery, ran a bit and rebooted into another fresh install which looked completely different. We're talking different wallpaper, and different apps. After that it successfully installed 4 or 5 OTAs and as far as I can tell it is now completely up to date!
Android Version is 5.01
Build is S100250-160119
Kernel Version is 3.10.20-x86_64byt-g9f7fad7
Security patch is dated 2016-02-01
I'll wait a few days before I root and install Xposed just to be 100% certain it's up to date.
Of course my sister will probably ask for it back now.
Either way, THANK YOU VERY MUCH corasman!!! Your help has been invaluable!
I am so pleased it worked for you, ionioni helped me so much and now I am trying to do the same for others.

HELP!!!

Hi,
I recently purchased a Galaxy Tab 4.0 Lite (SM-T337a). I successfully rooted it using Kingoroot but upon restart the entire operating system seems to be gone. It is an overseas tablet (AT&T) that I got through the classifieds here in Australia.
There was nothing on there so I am not worried about losing data, I just want to be able to restore some form of OS onto it.
I can get into Android System Recovery <3e> and have tried installing the stock firmware through the SD card, but so far nothing has worked. I'm also having trouble getting my PC/Mac to identify it.
Any help would be appreciated.
Thanks!
http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
download this and make the process
https://www.androidfilehost.com/?fid=529152257862688251
you have to flash the official firmware that you can find in sammobile and flash it whith odin. it should that your device is in download mod : down key home and power bottom on the boot
Look for the stock firmware for your model in this thread or somewhere in SamMobile, the language specified doesn't matter anyway cause you can always change that in setup but make sure that you've got the right one for your tablet. Then flash them using Odin

Galaxy Tab A SM-T350 in boot loop

Hi folks,
Relatively new to this whole flashing business, so please bear with me. I've got a SM-T350 that had 7.1.1 installed on it, and I wanted to revert to 6.0.1 (any Marshmallow really). I downloaded and flashed using Odin and this firmware (sammobile.com/firmwares/galaxy-tab-a/SM-T350/XAC/download/T350XXU1BPK1/111485/), and I'm now in a boot loop - essentially, the tablet boots, a bunch of processes stop/fail, and then it reboots.
So, I'd love some help getting going again. I'd prefer to get going with Marshmallow, but if I have to run Nougat, that's better than my current situation.
Thanks so much!
turbodb said:
Hi folks,
Relatively new to this whole flashing business, so please bear with me. I've got a SM-T350 that had 7.1.1 installed on it, and I wanted to revert to 6.0.1 (any Marshmallow really). I downloaded and flashed using Odin and this firmware (sammobile.com/firmwares/galaxy-tab-a/SM-T350/XAC/download/T350XXU1BPK1/111485/), and I'm now in a boot loop - essentially, the tablet boots, a bunch of processes stop/fail, and then it reboots.
So, I'd love some help getting going again. I'd prefer to get going with Marshmallow, but if I have to run Nougat, that's better than my current situation.
Thanks so much!
Click to expand...
Click to collapse
Factory reset.
turbodb said:
Hi folks,
..."essentially, the tablet boots, a bunch of processes stop/fail, and then it reboots."
Thanks so much!
Click to expand...
Click to collapse
download Samsung Kies 2 on a PC and go through the process of doing 'Emergency Firmware Recovery' I think it's called. Kies will ask for you model number, and then the serial number and should allow you to factory reset it to the original firmware. Be Careful what ROM's you use to flash, which specific version of Odin you use, also what options you select in odin.
That's your best bet right now. even if you want to root again you have to flash to stock firmware using Kies on a PC (way easier if it allows you), or you have to use Samsung SmartSwitch which will not restore/upgrade a rooted devices, in my experience. I've had to use both before for my Tab A (SM-T550). Hope this helps.

Categories

Resources