[Q] Entering Download mode while stuck in a bootloop - G2 Q&A, Help & Troubleshooting

Hello,
this could be a silly question, but I'm actually hopeless about it...
I've been using CloudyG3 for 3 days, but I had some problems about it, so I decided I'd revert back to stock. I entered the Download Mode, installed the V20D ROM using LG's Support Tool, and, when the phone restarted, tried to enter the Factory Reset screen. Try as I might, I couldn't do that, so I'm stuck in a bootloop (I mean, the LED indicator is flashing, but no LG boot animation - just the static logo. I think there could've been some problem while flashing the FW, that's why I would like to enter Download mode again, or maybe at least turn my phone off (it can only restart). Nevertheless, while trying to flash the FW again while in a bootloop, everything from model no. to firmware version installed is shown correctly, but it can't boot into Download mode.
Thanks in advance!

a5943 said:
Hello,
this could be a silly question, but I'm actually hopeless about it...
I've been using CloudyG3 for 3 days, but I had some problems about it, so I decided I'd revert back to stock. I entered the Download Mode, installed the V20D ROM using LG's Support Tool, and, when the phone restarted, tried to enter the Factory Reset screen. Try as I might, I couldn't do that, so I'm stuck in a bootloop (I mean, the LED indicator is flashing, but no LG boot animation - just the static logo. I think there could've been some problem while flashing the FW, that's why I would like to enter Download mode again, or maybe at least turn my phone off (it can only restart). Nevertheless, while trying to flash the FW again while in a bootloop, everything from model no. to firmware version installed is shown correctly, but it can't boot into Download mode.
Thanks in advance!
Click to expand...
Click to collapse
Have you got a power source connected ?

timlad said:
Have you got a power source connected ?
Click to expand...
Click to collapse
Thanks for your reply!
No, I don't.
EDIT
I'm really grateful to you for your suggestion. Having plugged the device in, the Download mode came up with no problems. Now I'm trying to flash the previous version - V20B, which might make my device usable again.
Thank you very much!

Related

[Q] Bricked phone. Can't access ADB, CWM

Hello!
Yesterday I tried flashing AOKP unofficial to my LG Optimus L5 E610, and something went wrong.
When I got the "Update finished" in CWM, I rebooted. I had a good welcome by a white screen, and some random things happening at the bottom of the screen. The phone shows the first LG Logo, but not the second one.
When I connect it to PC, or loader, It stops at just a blank, white screen.
I have tried using KDZ Updater, but it says "PHONE NOT FOUND". The same thing about ADB.
When I try to boot up in the CWM, All I get is a short flash from the key lights, and nothing happening from there.
I have tried entering emergancy, and download mode too, but I am not sure about the key combo for these modes.
Is there a way to get in another working ROM, or the stock one?
Please, help :'(
Edit: I managed to get in to the download mode, but KDZ updater ican still not find my phone when attempting to update
TechSaavy said:
Edit: I managed to get in to the download mode, but KDZ updater ican still not find my phone when attempting to update
Click to expand...
Click to collapse
You have to use a special kdz, v10d_download, search it on the net.
And are you waiting holding the buttons until the pone vibrate to enter cwm?
raul338 said:
You have to use a special kdz, v10d_download, search it on the net.
And are you waiting holding the buttons until the pone vibrate to enter cwm?
Click to expand...
Click to collapse
I have the .kdz with the stock firmware. I load it in to the KDZ Updater, and I get PHONE NOT FOUND every time
I have been holding the buttons for about 2-3 minutes, but nothing happend. Not even vibrations, or a single screen flash
TechSaavy said:
I have the .kdz with the stock firmware. I load it in to the KDZ Updater, and I get PHONE NOT FOUND every time
Click to expand...
Click to collapse
You have to flash v10d_downgrade FIRST, and then, when it finisihes, let it boot up (it'll be in russian) , then you can flash anything you want
raul338 said:
You have to flash v10d_downgrade FIRST, and then, when it finisihes, let it boot up (it'll be in russian) , then you can flash anything you want
Click to expand...
Click to collapse
I managed to get the phone in to the download mode, but it installet JB instead of ICS. Now, I am unable to root the device :'(
Where can I find the downgrade kdz?
Oh, I forgot to mention that after getting it running with JB,it does not want to enter download mode anymore. Ideas?
Ok, so I found the v10d_downgrade.kdz , flashed it, and it is stuck in a bootloop.
Tried flashing the original kdz, but it gives the same result.
TechSaavy said:
Ok, so I found the v10d_downgrade.kdz , flashed it, and it is stuck in a bootloop.
Tried flashing the original kdz, but it gives the same result.
Click to expand...
Click to collapse
Well thats wierd, whats the size of the file?
Code:
253 MB (265.392.128 bytes)
Thats the size of the file that i have. Maybe restart pc & phone and try again.
Actually there is no secure root option for JB (unless you want a chinesse root app)
what did you do to get into download mode
TechSaavy said:
I managed to get the phone in to the download mode, but it installet JB instead of ICS. Now, I am unable to root the device :'(
Where can I find the downgrade kdz?
Oh, I forgot to mention that after getting it running with JB,it does not want to enter download mode anymore. Ideas?
Click to expand...
Click to collapse
I'd flashed a wrong radio image and the cell now does'nt start just the flashing lights signal, what did you do to enter download mode?
Thanks in advance
Search Google for Hard-Reset followed by your device name. You will get a key combination to hard reset it.
Best of luck!!
Sent from my LG-P700 using xda app-developers app
Try the kdm updater of lg

[Q] [Q} Is my D802 Bricked?

Hi all
my D802 can't reboot with following method, could you please help me investigate how to fix it?
1. Can't enter download mode: I power it off, then hold volume up and plug in USB, but only the first screen shows up, can't enter the second one:
http://i.imgur.com/Kc4egAZ.jpg
http://i.imgur.com/jdCWBEW.jpg
So I can't flash kdz image.
2.I am able to access TWRP with official factory default( power+volume down to power on, when LG logo shows up, release power and volume down, then hold power.). But no matter I flash CloudyFlex which in my sdcard, or sideload flash others ROM, the cell phone will no boot up, always stuck at LG logo.
Any possible way to fix? Thank you very much.
helleon said:
Hi all
my D802 can't reboot with following method, could you please help me investigate how to fix it?
1. Can't enter download mode: I power it off, then hold volume up and plug in USB, but only the first screen shows up, can't enter the second one:
http://i.imgur.com/Kc4egAZ.jpg
http://i.imgur.com/jdCWBEW.jpg
So I can't flash kdz image.
2.I am able to access TWRP with official factory default( power+volume down to power on, when LG logo shows up, release power and volume down, then hold power.). But no matter I flash CloudyFlex which in my sdcard, or sideload flash others ROM, the cell phone will no boot up, always stuck at LG logo.
Any possible way to fix? Thank you very much.
Click to expand...
Click to collapse
What did you do prior to this happening? We need a story.
CuraeL said:
What did you do prior to this happening? We need a story.
Click to expand...
Click to collapse
not sure, I did few stupid things before.
1. I flashed LG G Pro 2 ROM here: http://forum.xda-developers.com/showthread.php?t=2673143 but it not good for me, so i went to recovery. but this rom replaced my recovery to a unknow one, not TWRP. when I was in this unknow recovery, my phone linked with PC via USB. PC found a lot of unformatted drivers, I did the most stupid thing: formatted one of them.
2. G Pro2 rom still can boot up, I flashed stock kdz, and rooted it with ioroot10, then flashed TWRP 2.6.3.3.
3. copy CloudyFlex_1.4.zip into sdcard through MTP mode of stock rom. reboot into recovery TWRP, flash cloudyflex, phone never boot up again.
4. No matter what rom i flash, always stuck at LG logo and the phone become hot.
sorry for my pool English.
helleon said:
not sure, I did few stupid things before.
1. I flashed LG G Pro 2 ROM here: http://forum.xda-developers.com/showthread.php?t=2673143 but it not good for me, so i went to recovery. but this rom replaced my recovery to a unknow one, not TWRP. when I was in this unknow recovery, my phone linked with PC via USB. PC found a lot of unformatted drivers, I did the most stupid thing: formatted one of them.
2. G Pro2 rom still can boot up, I flashed stock kdz, and rooted it with ioroot10, then flashed TWRP 2.6.3.3.
3. copy CloudyFlex_1.4.zip into sdcard through MTP mode of stock rom. reboot into recovery TWRP, flash cloudyflex, phone never boot up again.
4. No matter what rom i flash, always stuck at LG logo and the phone become hot.
sorry for my pool English.
Click to expand...
Click to collapse
Sorry man, I have no idea what you may have formatted then.. :/
I can't think of anything right now.. If you can't get to download mode and flash stock kdz again.. Then I don't know. I hope some one comes along that knows something. Sounds serious. I'll keep on thinking about things. But I have to leave the house now so..
Sorry.
CuraeL said:
Sorry man, I have no idea what you may have formatted then.. :/
I can't think of anything right now.. If you can't get to download mode and flash stock kdz again.. Then I don't know. I hope some one comes along that knows something. Sounds serious. I'll keep on thinking about things. But I have to leave the house now so..
Sorry.
Click to expand...
Click to collapse
thx mate. Just wondering why can't get to download mode. After formatted a driver, flash stock kdz successfully and the stock rom work pretty well.
did you fix the problem, i have almost the same issue, my phone gos into first download mode screen, but not the second one, so noway to flash a kdz, help us please.

[Urgent Help Required!] Phone boots, but no download mode or recovery!

Hi,
Have a weird situation, but try as much as I may, I'm unable to resolve it.
My phone is rooted (international D802) and was running fine. Had a screen issue and got it replaced at the service center but their system identified my phone as a rooted device, and a couple of days later the problems started.
The issues I'm facing right now:
1. The phone doesn't charge when switched on, at all.
2. The phone doesn't reboot either.. not instantly anyways. If powered off, or rebooted, the phone doesn't turn back on, it just goes dead. It does boot again though if tried after a couple of hrs.
3. The phone charges when its off (shows no light or indicator though, like its bricked)
4. Cannot go into either recovery or download mode. Coz the phone doesn't boot when restarted or when i try to reboot into recovery.
5. When it does magically start after a few hrs (upon long pressing the power button), even if I try to go into download or recovery via the vol keys, it just boots to android.
6. The phone is recognized properly as LG G2 under windows and all the drivers install too.
7. The phone isn't recognized under Linux... tried both Ubuntu and Knoppix.
Travelling out of the country in a few days, really need to sort this out.
Any and all help/suggestions will be greatly appreciated.
Thanks in advance
Somebody... Anybody? :'(
When your phone rebooted I would recommend you firstly to activate USB Debugging in the developer settings. You said your device is rooted? So try to install the Auto Rec recovery here
https://www.androidfilehost.com/?w=files&flid=13763 - but make sure you are on Kitkat. Now, install the app normal and let the app install all things. After installation, the app asks you to reboot to recovery, now press reboot to recovery.
Maybe you have luck and the phone reboots to TWRP. In TWRP you can go to Reboot and then Reboot to Download mode.
Now (if all worked) you can flash the stock rom .kdz file of the d802 via the FlashTool 2014.
Hope you have luck, please keep me up to date if everything worked.
Yours, Flo
Good luck!!
Thanks a lot for the response Flo, but the problem is that i never got around to updating to a Kitkat rom... the rom i was never got updated and I was kinda happy with how things were working so didn't jump on to any other rom.
Anything I can do in my current situation?
Go back to stock via lg flash tool
_____________________________________Read more write less and be smart
siggey said:
Go back to stock via lg flash tool
Click to expand...
Click to collapse
As mentioned in my first post, can't get into download mode.
Try this
http://forum.xda-developers.com/showthread.php?p=56000637
LG G2 is UNBRICKABLE NOW! [FIX REAL HARD BRICK]
_____________________________________Read more write less and be smart

LG G2 D802 brick problem (I tried different solutions)

Hello everyone!
I really hope I can find help here. I wanted to install Cyanogenmod 13 on my LG G2 D802 32GB. In the end I think I bricked my phone. I want to mention that I already searched for help on the Internet and tried many tutorials, but nothing helped.
First, I rooted my phone using this One click root method (before, I tried doing that other ways but it didn't work). So far, so good.
Then, I installed TWRP via Autorec. And here came the first problem. I booted into recovery mode and then the phone wouldn't start anymore. I started getting "Security error" along with Lg logo, when I wanted to turn on the phone. Actually I can't remember if I wiped everything in Recovery mode before or after getting this error, but I did anyway. Then I didn't get this security error message anymore, just stuck with lg logo.
Anyway I was still able to get into recovery or download mod, so I tried installing CM. But I couldn't acces my phone memory through PC and I didn't have CM installer zip on the phone. I tried copying CM installer into the phone using ADB push command. It did copy, it said it succesfully installed but since then every time I turn on my phone Lg logo just blinks for a fraction of a second and the phone will not turn on. The screen is black, but it remains "on" (there's nothing on it but you can see it's not totally turned off).
After that I tried every tutorial I could to install CM or stock ROM. I tried downloading different LG firmwares, including one found on a page where I had to enter my IMEI. But it's always the same problem: when I use LG Flashtool ( 1.0.54 ) it gets stuck. After clicking on System Upgrade I'm not asked about the language (as tutorials suggest), but it just opens LGMobile Support Tool, which says that my system is up to date.
OK, I think that's all I can say. So, the main problem is that I cannot use LG Flashtool, which is neccessary to install stock ROM in all the tutorials I have seen. Of course, I would like to install CM 13 still, but now th emost important thing is to get my phone to work again, even on stock system.
I hope we can solve this problem. Thank you all in advance!
Can you boot in download mode?
If you have download mode you can easily reflash stock
http://forum.xda-developers.com/showthread.php?t=2432476
If you cant get to download mode you have to reflash all the partitions here is thread
http://forum.xda-developers.com/lg-g2/general/mega-tut-how-to-fix-bricked-lg-g2-t3055033
or
http://forum.xda-developers.com/lg-g2/general/file-unbrick-qualcomm-9006-qhsusb-t3056800
After reflashing all partition you should be able to boot in download mode, then you can flash stock
xarekusu said:
Can you boot in download mode?
If you have download mode you can easily reflash stock
http://forum.xda-developers.com/showthread.php?t=2432476
If you cant get to download mode you have to reflash all the partitions here is thread
http://forum.xda-developers.com/lg-g2/general/mega-tut-how-to-fix-bricked-lg-g2-t3055033
or
http://forum.xda-developers.com/lg-g2/general/file-unbrick-qualcomm-9006-qhsusb-t3056800
After reflashing all partition you should be able to boot in download mode, then you can flash stock
Click to expand...
Click to collapse
Thanks a lot. I followed the instructions in the first post on the first site that you linked, using kdz file. Everything seemed to go well and I was already happy, but... It seemed that the stock flashed (on the computer it said that the installation was correct, on the phone the screen showed Update Software and it went to 100% percent), then the phone restarted and started updating apps for Android. And that is normal I suppose. But then, after it finished, it turned off, turned on and started installing those apps again. After that it turned off. When I wanted to turn it on, it showed me LG logo and then android logo for a fraction of a second. Then sometimes it would turn off completely and sometimes turn on again and show logos again. I assume that's what is called bootloop. So I followed the tutorial which said I should do factory hard reset. I entered the screen (power+vol down buttons), confirmed two times that I want to do the reset. It said the reset will start automatically, but nothing happened. The phone just turned off immediately and the same situation with logos (Bootlooping?) appears. So the problem now is that I cannot factory reset the phone.
pagi111 said:
Thanks a lot. I followed the instructions in the first post on the first site that you linked, using kdz file. Everything seemed to go well and I was already happy, but... It seemed that the stock flashed (on the computer it said that the installation was correct, on the phone the screen showed Update Software and it went to 100% percent), then the phone restarted and started updating apps for Android. And that is normal I suppose. But then, after it finished, it turned off, turned on and started installing those apps again. After that it turned off. When I wanted to turn it on, it showed me LG logo and then android logo for a fraction of a second. Then sometimes it would turn off completely and sometimes turn on again and show logos again. I assume that's what is called bootloop. So I followed the tutorial which said I should do factory hard reset. I entered the screen (power+vol down buttons), confirmed two times that I want to do the reset. It said the reset will start automatically, but nothing happened. The phone just turned off immediately and the same situation with logos (Bootlooping?) appears. So the problem now is that I cannot factory reset the phone.
Click to expand...
Click to collapse
I'm having a similar problem on my vs980 except I can't access recovery anymore but everything else is the same.
Edit: I actually can access recovery
You messed up pretty bad before you fixed a problem, you created another.
Have you tried to go back to stock using downoad mode and kdz?
Use this tool : http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
iubjaved said:
You messed up pretty bad before you fixed a problem, you created another.
Have you tried to go back to stock using downoad mode and kdz?
Use this tool : http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
Click to expand...
Click to collapse
OK, well, this is strange. The phone is working again, but actually I have no idea why I downloaded the tool from your link, installed it and ran. Then, following the yt tutorial, I went to the step where I was supposed to "look and remember the disk number that have so many partitions". I didn't anything there, though. And then, all of the sudden the phone started updating Android apps and then turned on as after factory reset. Weird, but it's working fine
By the way, can someone post a link to a tutorial on how to install Cyanogenmod 13 on LG G2 D802 32GB? I would still like to install it, but I want to avoid all the problems that I had now. So is there any good step by step tutorial that I could use to install CM?
Anyway, thanks all for help
pagi111 said:
OK, well, this is strange. The phone is working again, but actually I have no idea why I downloaded the tool from your link, installed it and ran. Then, following the yt tutorial, I went to the step where I was supposed to "look and remember the disk number that have so many partitions". I didn't anything there, though. And then, all of the sudden the phone started updating Android apps and then turned on as after factory reset. Weird, but it's working fine
By the way, can someone post a link to a tutorial on how to install Cyanogenmod 13 on LG G2 D802 32GB? I would still like to install it, but I want to avoid all the problems that I had now. So is there any good step by step tutorial that I could use to install CM?
Anyway, thanks all for help
Click to expand...
Click to collapse
Sure.
Download the rom from cyanogenmod website and put it on your phone memory.
Download Gapps from opengapps.org and place on the phone memory.
Go to recovery.
Make a full nandroid backup( all the partitions) , wipe all except internal storage.
Flash the rom along with the gaaps zip.
Reboot.

SM-G950F won't boot, hard bricked?

I had to reboot my device due to problems with my speaker. Now i'm not able to boot anymore.
I'm only able to get into ODIN Mode, and flashing new FW or TWRP does nothing. It'll flash correctly, but as soon as it sends the reboot command the device powers off and does not boot, and no, it does not reach the "Galaxy s8, powered by android screen".
It does not want to power on, and only responds to the odin button combo, can't boot into recovery either since nothing works.
I was running the latest version of Renovate Ice if that matters.
I've searched trough some other threads, but it seems like i'm the only one that's having this problem.
Any help or thoughts would be greatly appreciated!
Edit 1: I've tried flashing both AQK7 and AQG5. Both flash fine, but as soon as odin sends the reboot command to my phone, it turns off and does not turn on.
Auto Reboot is ticked. Same goes for any version of TWRP, it will flash, but when it has to reboot the device turns off and does not turn on. There's nothing on the screen, its completely black and the only thing that does work is Download Mode. I've also tried ereasing nand, and repartitioning storage. Both seem to have 0 effect. As stated in one of my replies, i was running the latest build of renovate-ice with magisk, no other mods, or themes installed.
Im a bit confused - you can only boot into download mode (not into twrp?) and the phone is in bootloop? Have you flashed anything (mod?) before or activated a substratum theme which could cause this?
The only thing I can think of is a) you delete in twrp file manager the corrupted file, if there is something like this or b) a twrp restore from a backup. Boot into download mode and then do not press vol up to go into odin mode but press vol down to reboot - then immediately press the combo for twrp and you will get to the recovery. This helped my s8 many times when I was in a bootloop and couldnt boot up twrp
FloM94 said:
Im a bit confused - you can only boot into download mode (not into twrp?) and the phone is in bootloop? Have you flashed anything (mod?) before or activated a substratum theme which could cause this?
The only thing I can think of is a) you delete in twrp file manager the corrupted file, if there is something like this or b) a twrp restore from a backup. Boot into download mode and then do not press vol up to go into odin mode but press vol down to reboot - then immediately press the combo for twrp and you will get to the recovery. This helped my s8 many times when I was in a bootloop and couldnt boot up twrp
Click to expand...
Click to collapse
Thanks for the reply! Other than using the Renovate-Ice rom, and running magisk the thing was pretty much stock. wasn't messing around in twrp either. Its not stuck in a bootloop either, it just refuses to do anything other than go in and out of DL mode. The phone does not respond to any button imputs other than DL mode. As stated in the OP it does not boot at all, just a black screen. i've already tried to reflash a stock FW and TWRP, but that does not seem to work...
try the method I did - this is the last thing I could think of, before reflash the whole phone with odin
More info about your speaker problem
popmpopm said:
More info about your speaker problem
Click to expand...
Click to collapse
There isn't much to say about the problem ,it just stopped working, hence why i rebooted the phone, and ran in to the problem i'm having right now.
FloM94 said:
try the method I did - this is the last thing I could think of, before reflash the whole phone with odin
Click to expand...
Click to collapse
Doesn't work sadly, but thanks for the help anyways!
but you havent installed Viper4Arise or anything like that?
Because of this my speaker also stopped working a few weeks ago
if you can get into download mode then get into download mode and leave phone, then download samsung smart switch for your pc (older version like 4.1.17022_20 from here http://www.filehorse.com/download-samsung-smart-switch/29268/ that allows phone based recovery), once installed open it, then click on more at top right, (do not update the software if you get a prompt) select emergency device recovery...., then click on right tab (device initialisation) and fill in your phone details etc., connect your phone (in download mode) and follow the process, maybe it works, you'll need to root and install TWRP again but thats no big issue.
Jostian said:
if you can get into download mode then get into download mode and leave phone, then download samsung smart switch for your pc (older version like 4.1.17022_20 from here http://www.filehorse.com/download-samsung-smart-switch/29268/ that allows phone based recovery), once installed open it, then click on more at top right, (do not update the software if you get a prompt) select emergency device recovery...., then click on right tab (device initialisation) and fill in your phone details etc., connect your phone (in download mode) and follow the process, maybe it works, you'll need to root and install TWRP again but thats no big issue.
Click to expand...
Click to collapse
I've tried this just now, and it still gives me the same result, it goes trough the process, but as soon as it has to reboot it doesn't boot anymore.
Thanks for the suggestion though!
FloM94 said:
but you havent installed Viper4Arise or anything like that?
Because of this my speaker also stopped working a few weeks ago
Click to expand...
Click to collapse
i think phone is damaged by water or dropped s8 so fragile phone ! its happen to me with s5 the phone dead after speaker problem !!
popmpopm said:
i think phone is damaged by water or dropped s8 so fragile phone ! its happen to me with s5 the phone dead after speaker problem !!
Click to expand...
Click to collapse
I've had a case on the phone since day one, and I've checked for water damage, but there is non. The tab that is supposed to indicate it is untouched. But thanks for your input! I appreciate it
I have the same problem. Its look like is bootloader issue. try flash this soft :
G950FOWA1AQCC_Recovery
But if you are on newest rom it wont work.
Hello, you can solve this problem?

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