M9 bootloop and no downlaod mode - unbrick possible? - One (M9) Q&A, Help & Troubleshooting

Hi guys,
my father's M9 was on the newest ViperOne for some time now.
Now a few problems popped up:
1. If the device is turned off and you plug it in to charger, it boots into bootloader
2.booting to download mode results in "failed to boot to download mode"
3.Every ROM i install via TWRP is ending in a boot loop (The boot-animation is visible for about a second)
4. i tried other TWRP version, other ROMs and other Kernels and also wiped the complete device.
As I dont get into downlaod mode, I dont know how to recover the device to stock ROM via RUU at least.
Any help is appreciated! Thanks!

download RUU your correct current *os/sku number* installed version, you can find it at
https://forum.xda-developers.com/one-m9/general/stock-nand-backup-ota-update-collection-t3132698
Click to expand...
Click to collapse
you should have thanks to mr flippy498
**download adb universal driver and adb debugger or htc driver.
1. plug your phone to pc/laptop and install on** desrciptions above
2.open RUU and follow the rules and wait until finish *cafully if your cable is disconnect/unlpug or your phone force reboot by your own hands it will cause abnormal problem or your phone will never boot

I can't because, like I said, I cannot boot into download mode (black screen saying "failed to boot to download mode").

LeErdnuss said:
Hi guys,
my father's M9 was on the newest ViperOne for some time now.
Now a few problems popped up:
1. If the device is turned off and you plug it in to charger, it boots into bootloader
2.booting to download mode results in "failed to boot to download mode"
3.Every ROM i install via TWRP is ending in a boot loop (The boot-animation is visible for about a second)
4. i tried other TWRP version, other ROMs and other Kernels and also wiped the complete device.
As I dont get into downlaod mode, I dont know how to recover the device to stock ROM via RUU at least.
Any help is appreciated! Thanks!
Click to expand...
Click to collapse
What os are you currently running? And what version of twrp are you on?
I know you've said you've installed other twrp versions/roms/kernels but to know which is most compatible, your firmware and a bit more info is needed.

I'm willing to bet it's an s-on device too.
If you can't get to download mode, what modes CAN you get it to?.
Beamed in by telepathy.

C.f. Q7

Related

[Q] Stuck in Odin Mode after trying to download and install Stock 4.2

Hello everyone
After being prompted with the option to download and install stock Android 4.2 I pressed the respective button but instead of having an updated system my phone is now stuck Odin Mode.
I'm facing the following situation:
- When trying to boot into fastboot mode the phone shows the Android guy and says "Downloading Do not turn off target".
- When rebooting it, the Google logo shows up and nothing else happens.
- When I connect it to the computer [in fastboot mode] it says that the OMAP4440 drivers could not be installed.
- It is not recognized by the toolkit.
Before I've tried updating to the recommended stock rom I was running some early 4.2 release. My bootloader was unlocked and my phone rooted. CWM 6 was installed.
I'm pretty much screwed right now, no matter what I do, my phone is not recognized by the toolkit and stuck in Odin mode.
I'd really appreciate it if you guys could help me out!
Thanks in advance.
Rob
Just thinking aloud... have you tried connecting it to another computer in fastboot mode?
Not yet, unfortunately I have no other computer to my direct disposition (except the university ones). Also, I would also have to install the drivers which apparently fails for the one I need.
graczr said:
Hello everyone
After being prompted with the option to download and install stock Android 4.2 I pressed the respective button but instead of having an updated system my phone is now stuck Odin Mode.
I'm facing the following situation:
- When trying to boot into fastboot mode the phone shows the Android guy and says "Downloading Do not turn off target".
- When rebooting it, the Google logo shows up and nothing else happens.
- When I connect it to the computer [in fastboot mode] it says that the OMAP4440 drivers could not be installed.
- It is not recognized by the toolkit.
Before I've tried updating to the recommended stock rom I was running some early 4.2 release. My bootloader was unlocked and my phone rooted. CWM 6 was installed.
I'm pretty much screwed right now, no matter what I do, my phone is not recognized by the toolkit and stuck in Odin mode.
I'd really appreciate it if you guys could help me out!
Thanks in advance.
Rob
Click to expand...
Click to collapse
1) that isnt fastboot mode. fastboot mode is pressing and holding vol up AND down and the power button
Thanks for the quick reply.
I managed to boot into fastboot mode - CWM is gone, the only option available is "Start".
My phone still doesn't get recognized, the error I get from Windows is "unable to install galaxy nexus bootloader driver".
graczr said:
Thanks for the quick reply.
I managed to boot into fastboot mode - CWM is gone, the only option available is "Start".
My phone still doesn't get recognized, the error I get from Windows is "unable to install galaxy nexus bootloader driver".
Click to expand...
Click to collapse
sigh. use the volume buttons to select recovery mode.
just that screen however is fastboot. as far as the driver thing, you need to install the driver manually. follow step A: http://forum.xda-developers.com/showthread.php?t=1626895
Zepius said:
sigh. use the volume buttons to select recovery mode.
just that screen however is fastboot. as far as the driver thing, you need to install the driver manually. follow step A: http://forum.xda-developers.com/showthread.php?t=1626895
Click to expand...
Click to collapse
Thanks for your reply. The problem is, that navigating by means of the volume buttons didn't work. But at least my phone got recognized in fastboot mode. I'll try to reinstall the stock rom now.
Once the computer can communicate with the phone in fastboot, you are golden... just make sure you flash the right radio.
Managed to flash Stock 4.2.1 and everything works fine
Thanks a lot for your help guys!
Hey guys I have found a nice solution for this problwm by android devices
Yus go to SamMobile.com surch your stuck room and download it with odin it will works very well you won't lose any apps or datas the only thing is that u gonna have all this apps back for wich u had never asked by questions u can ask me and i hope that i can help
Sry for bad englisch but im austrian
Gesendet von meinem GT-I9301I mit Hilfe von xda Forum

Stuck in boot loop and can't get into fastboot mode to use adb, need help

I followed this tutorial: http://forum.xda-developers.com/g4/general/unlock-bootloader-install-twrp-root-t3128241
Here's what I did:
Unlocked bootloader
Booted into TWRP (version 3.0) (didn't install, just booted into)
Flashed SuperSU
Rebooted into system
Now whenever I boot the device I'm stuck in a boot loop.
So I can't boot the device up or get into fastboot mode (what should fastboot mode look like? I got into download mode at some point), not sure what to do?
I had same problem once, managed to handle it with LGUP and refubrish full stock rom
ashensii said:
I had same problem once, managed to handle it with LGUP and refubrish full stock rom
Click to expand...
Click to collapse
I tried LGUP but it says the Model is "unknown" so when I select my phone it says "You have to select a known model, please." Can someone help?
I also tried flashing a stock kdz using LG flash tool but I got an error. Does anyone know what I can do? I can get my phone into download mode but don't know what to do on my computer.
I'll give someone $20 if they can help fix my phone for me
Paul397 said:
I also tried flashing a stock kdz using LG flash tool but I got an error. Does anyone know what I can do? I can get my phone into download mode but don't know what to do on my computer.
I'll give someone $20 if they can help fix my phone for me
Click to expand...
Click to collapse
With LG up if it comes up with device unknow with usb cable still pluged in pull battery out then put it back.
Paul397 said:
I also tried flashing a stock kdz using LG flash tool but I got an error. Does anyone know what I can do? I can get my phone into download mode but don't know what to do on my computer.
I'll give someone $20 if they can help fix my phone for me
Click to expand...
Click to collapse
I had the same problem.
If you can get your phone in the download mode, than try this.
1: Install LGBridge,
2: Boot your phone in download mode & start LGBridge,
3: Than on Software Update tab, on the bottom right corner, you will see an option saying "Update Error Recovery"
4: Click on it and your phone will be flashed to latest firmware. Make sure you are connected to net as it will need to download it.
Once the update it complete, Your phone should reboot normally.
Give it a try and let me know how it goes.

Today's CM14 bricked my H815 (no bootloader, no fastboot, no recovery)

Hi,
My H815 always suffered from this problem: http://forum.xda-developers.com/g4/help/fastboot-download-mode-problem-t3466649 - the only way I could have fastboot was from an adb shell.
Well, that was not a problem until today: CM14's nightly broke (booting just loops at the moving logo) and now I have no way to go back to fastboot. And if I try the recovery mode, I just have a blurry circle saying "erasing" for a few seconds, then a looping CM logo.
Anyone has a way out of this mess ?
bestouff said:
Hi,
My H815 always suffered from this problem: http://forum.xda-developers.com/g4/help/fastboot-download-mode-problem-t3466649 - the only way I could have fastboot was from an adb shell.
Well, that was not a problem until today: CM14's nightly broke (booting just loops at the moving logo) and now I have no way to go back to fastboot. And if I try the recovery mode, I just have a blurry circle saying "erasing" for a few seconds, then a looping CM logo.
Anyone has a way out of this mess ?
Click to expand...
Click to collapse
When you say you try the recovery mode how do you try to get into it? Btw do you have twrp installed?
Same thing happened to me, tried to install, just got put straight back in to TWRP after boot. Tried installing a stock ROM, CM ROM & using LG Bridge to recover, to no avail. Help appreciated, (i'm assuming LGUP is going to come up a lot)
Tycoon282 said:
Same thing happened to me, tried to install, just got put straight back in to TWRP after boot. Tried installing a stock ROM, CM ROM & using LG Bridge to recover, to no avail. Help appreciated, (i'm assuming LGUP is going to come up a lot)
Click to expand...
Click to collapse
The OP has another issue pls do not hijack.
steadfasterX said:
The OP has another issue pls do not hijack.
Click to expand...
Click to collapse
Sorry, it's nearly the same issue though, CM14.1 broke phones today.
Today's update broke mine as well. Looking for solutions. Will follow your thread and progress.
Same for me. Tried download mode with lgup to flash stock which worked once - but I kind of bricked it again by trying to install cm14.1 again. Then i tried to go back to stock using lgup again, but now lgup it just crashes. The phone now goes automatically to download mode after turning it on, the progress bar stays at 0%, the phone says "633A B100" and lgup crashes after 9% "prepare dlmode" or something similar. any ideas? :/
Some people seem to have fixed this issue by flashing the official Cyanogenmod Recovery.
thewild said:
Some people seem to have fixed this issue by flashing the official Cyanogenmod Recovery.
Click to expand...
Click to collapse
After flashig the CM Recovery via TWRP, i can't use the recovery anymore. If i boot into CM-Recovery the display shows "Ereasing" and start the system. After that i got a bootloop.
Is it possible to use fastboot??
You guys should also check CM14.1 thread because people there are talking about the same problem. The latest post says the only solution was to flash an official kdz with LGUP.
thewild said:
You guys should also check CM14.1 thread because people there are talking about the same problem. The latest post says the only solution was to flash an official kdz with LGUP.
Click to expand...
Click to collapse
Did that. Worked once. Then i tried to flash cm again and had the same problems, so i wanted to flash stock again... now lgup crashes at 9% and the phones goes directly to download mode after turning it on.
onlyolli said:
Did that. Worked once. Then i tried to flash cm again and had the same problems, so i wanted to flash stock again... now lgup crashes at 9% and the phones goes directly to download mode after turning it on.
Click to expand...
Click to collapse
And the two times you tried to flash CM, that was with the same recovery ?
Can you go into fastboot mode ?
thewild said:
And the two times you tried to flash CM, that was with the same recovery ?
Can you go into fastboot mode ?
Click to expand...
Click to collapse
Yes, it was with cm recovery 20161130, if i remember correctly.
Sadly now, i can not go into fastboot. The phone goes directly into download mode. My windows vm detects the phone, and tries to flash a recent kdz, but lgup crashes at 9%. The phone still shows "0%".
Oh that's bad. What about another kdz ?
thewild said:
Oh that's bad. What about another kdz ?
Click to expand...
Click to collapse
Already tried like 3-4.... Its always the same. If the tool would at least give me a little bit more information, but it just stops.
I don't know then. Some users seem to have had the same problem (stuck at 9%) : http://forum.xda-developers.com/search/forum/4233?query=lgup 9%
I had the same issue, tried several things, my final solution was:
- Start in download mode (Volumen up and then plug in cable)
- use "LG Brigde" on Mac to install stock Rom ( Software update tab in APP ) guess should also work with Windows
- Boot original android
- enable usb debug
- Start bootloader via ADB
- fastboot flash recovery to twrp 3.0.2
- Boot in recovery via power and vol down (first factory reset from stock appears but after this twrp is starting)
- install cm nighty of 1 DEC via ADB sideload
- reboot and done
In the meantime i updated to twrp 3.0.2-1., installed gapps etc. everything is now working fine again.
Hope this is also working for you.
Which version of cm14 did u download and install? Can u please post the exact version?
Mmh ... LGUP is the Windows utility right ? How do I do if I only have a Linux machine ?
steadfasterX said:
When you say you try the recovery mode how do you try to get into it? Btw do you have twrp installed?
Click to expand...
Click to collapse
I'm trying to get to it via power+down, I get to the double "do you want to factory reset ?" question, but then :
- sometimes the CM recovery just says "erasing" for a few seconds and reboots to (non-working) CM
- sometimes it just plainly boots to (non-working) CM
I used to have TWRP installed but it didn't work with CM update, so I let CM install its own recovery.

Tab S 8.4 Stuck in recovery loop

Hi Folks,
I have a Tab S 8.4 wifi that I seem to have broken. I was attempting to restore the stock Marshmallow rom and something has gone horribly wrong. This is what I did:
1. I installed the latest stock rom by Odin and booted
2. I then downloaded and installed CF auto root/TWRP for the SM-T700, however, I failed notice that I had left NAND erase checked in the Odin settings so now all I get is the device attempting boot into TWRP which doesn’t work.
The device won’t turn off to allow me to use the buttons to access download mode which I know is what I need. I have tried draining the battery completely but as soon as power is restored it attempts to boot into the failed recovery again and is, in effect, stuck on the TWRP screen, periodically flashing the screen. It its broken TWRP state, the computer recognises it as a USB MTP device but will not recognise with the correct drivers to allow me to use ADB to force it into the download.
Does anybody have any suggestions? Otherwise I have a £250 paperweight!
unsrm said:
Hi Folks,
I have a Tab S 8.4 wifi that I seem to have broken. I was attempting to restore the stock Marshmallow rom and something has gone horribly wrong. This is what I did:
1.I installed the latest stock rom by Odin and booted
2.I then downloaded and installed CF auto root/TWRP for the SM-T700, however, I failed notice that I had left NAND erase checked in the Odin settings so now all I get is the device attempting boot into TWRP which doesn’t work.
The device won’t turn off to allow me to use the buttons to access download mode which I know is what I need. I have tried draining the battery completely but as soon as power is restored it attempts to boot into the failed recovery again and is, in effect, stuck on the TWRP screen, periodically flashing the screen. It its broken TWRP state, the computer recognises it as a USB MTP device but will not recognise with the correct drivers to allow me to use ADB to force it into the download.
Does anybody have any suggestions? Otherwise I have a £250 paperweight!
Click to expand...
Click to collapse
The file you flashed doesn't work on Marshmallow.
Use the updated twrp and supersu in the dev section.
ashyx said:
The file you flashed doesn't work on Marshmallow.
Use the updated twrp and supersu in the dev section.
Click to expand...
Click to collapse
Thanks for the reply ashyx, I don't current have a way to achieve that as I cannot access download mode. Any suggestions on how to do that?
unsrm said:
Thanks for the reply ashyx, I don't current have a way to achieve that as I cannot access download mode. Any suggestions on how to do that?
Click to expand...
Click to collapse
You can access download mode anytime irrespective of the current state the device is in.
Hold POWER + HOME + VOL DOWN until the device boots in to download mode.
ashyx said:
You can access download mode anytime irrespective of the current state the device is in.
Hold POWER + HOME + VOL DOWN until the device boots in to download mode.
Click to expand...
Click to collapse
I did't realise it would work in any mode!
Thought I'd tried it but obviously not held long enough.
You are a star! Thank you so much.
Chris

TWRP BOOT LOOP has anyone found a solution (OTA update)

i tried installing the lastest ota update while i had twrp installed, i have tried everything to get out of this loop.
tried flashing the updated rom off the oneplus website and if gave me errors
just looked at my phone and now it wont turn on what so every getting really stressed please help
[SOLVED]
went back to stock recovery and side loaded the full 1.4 gb rom i will leave a link for tutorial that i used, i wanted to get back to complete stock and this was the one use
"https://forums.oneplus.net/threads/guide-how-to-unroot-your-oneplus-3-and-go-back-completely-to-stock.456232/"
When you have TWRP you have to install full zip, not simply the eval OTA zip
bob_cheeseman5 said:
i tried installing the lastest ota update while i had twrp installed, i have tried everything to get out of this loop.
tried flashing the updated rom off the oneplus website and if gave me errors
just looked at my phone and now it wont turn on what so every getting really stressed please help
Click to expand...
Click to collapse
Flash the stock recovery.
Get stock recovery from downloads.oneplus.net
I cant seem to flash the stock recovery. The device is not visible in adb devices or fastboot devices. im facing the same issue.
If you are using TWRP 3.0.4-0 - try a hard boot...hold down the power button for 20s...wait 20s, power it back on.
bob_cheeseman5 said:
i tried installing the lastest ota update while i had twrp installed, i have tried everything to get out of this loop.
tried flashing the updated rom off the oneplus website and if gave me errors
just looked at my phone and now it wont turn on what so every getting really stressed please help
Click to expand...
Click to collapse
easy solution. Boot into fastboot
download this tool.
https://forum.xda-developers.com/oneplus-3/development/toolkit-oneplus-3-toolkit-unlock-t3398799
if newest version isnt working, download an older version with older twrp
than unzip the tool and run the .bat file and install twrp.
Thats it
There are many posts on Nougat not working with official TWRP (based on 6.0 build). Try booting into stock recovery. performing a system settings reset, then booting into fastboot and run the adb command, <fastboot boot TWRP-3.0.2-1.28.img>. From there you can do virtually anything you need to do. I recommend at least using a modified version of TWRP (such as 1.28). This has been posted many times before, please try and do a search for the answers first, it will help tremendously. Thanks
recovery
i had the same problem on my rooted OP3 when i used TWRP 3.0.2-1 , it worked to flash the full 4.0.1 rom but failed for everything else, flashing latest verion of twrp fixed it for me
Got the same problem (unrooted phone + device state locked, cannot access recover, but can access fastboot) with an added "benefit", USB debugging mode was off before it all went crashing and burning.
How to access my phone via PC? (all the guides I've found assume I had USB debugging mode on before the phone got soft-bricked, but as a normal phone user who never installed anything custom, I've never figured it is A MUST BE ON function).
Or simpler question - what tool to use to turn on the USB debugging mode? (if that is at all possible?)
Aislandas said:
Got the same problem (unrooted phone + device state locked, cannot access recover, but can access fastboot) with an added "benefit", USB debugging mode was off before it all went crashing and burning.
How to access my phone via PC? (all the guides I've found assume I had USB debugging mode on before the phone got soft-bricked, but as a normal phone user who never installed anything custom, I've never figured it is A MUST BE ON function).
Or simpler question - what tool to use to turn on the USB debugging mode? (if that is at all possible?)
Click to expand...
Click to collapse
I have tried doing the installing of the newer twrp but cant find a newer version of it, i am on 3.0.2-1. i have the same problem as you that my USB debugging isnt on i dont think so when trying to use the op3 tool kit i can get it to pick up fast boot but nothing else.
have you found a solution to your problem yet?
bob_cheeseman5 said:
I have tried doing the installing of the newer twrp but cant find a newer version of it, i am on 3.0.2-1. i have the same problem as you that my USB debugging isnt on i dont think so when trying to use the op3 tool kit i can get it to pick up fast boot but nothing else.
have you found a solution to your problem yet?
Click to expand...
Click to collapse
Noted that you solved your issue, but this post is about the new version of TWRP. Version 3.0.3 is available on twrp.me and it works with Nougat.
bob_cheeseman5 said:
I have tried doing the installing of the newer twrp but cant find a newer version of it, i am on 3.0.2-1. i have the same problem as you that my USB debugging isnt on i dont think so when trying to use the op3 tool kit i can get it to pick up fast boot but nothing else.
have you found a solution to your problem yet?
Click to expand...
Click to collapse
Gave up trying and booked a session with OP technicians Will see how it goes in a week.

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