So I wanted to install the latest official update from Asus (was running android 10) and in twrp i cleared system, vendor and the rest and rebooted. Now the phone is stuck in "fastboot mode" but I can't read it via fastboot devices. I can just select start, restart bootloader, recovery mode and power off. Windows is showing an unknown device. How can I get fastboot to work again?
nvm, installed the android driver to get fastboot to work and then used this https://forum.xda-developers.com/t/guide-how-to-unbrick-your-zenfone-6-zs630kl.3998767/ to get it to work.
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My Oneplus One - 64GB was running LiquidSmooth's Alpha ROM.
I hadn't used the phone in like a month. A couple of days ago i thought there'd be an updated version so i just downloaded a later version. I think I flashed the 01-22 Build.
I did not do a full wipe however. (I realize now that It would have been a good idea to do a full wipe before the flash. :s )
I assumed that since the base of the ROM was the same lollipop, all I had to do was wipe cache/dalvik and flash the update.
Installation proceeded as usual and I wiped cache/dalvik(I'm never sure when to do this so i do it before and after install) once more and then Reboot System.
But the phone went on a bootloop for like 10minutes or so.
I tried to get into Recovery but it just wouldn't. It would just show the 1+ Logo and Powered by android screen and then turn off..
I did however manage to get into the fastboot mode by pressing power +vol up.
Now the problem is, the device doesn't show up in the command prompt when i type
Code:
fastboot devices
I uninstalled all the usb drivers from my pc.
Installed the Universal ADB drivers from kouch's site but still no progress..
Device manager still shows the phone as an unknown device.
What am I doing wrong? What can i do to get the phone to be recognized so I can flash the recovery and flash a new ROM?
It's related of firmware change. After 01.17.2015 you must flash the latest CM12 rom and then flash the rom you want.
That's a known "issue". Hope it helps.
Problem is:
1. I no longer have a working recovery(can't boot into recovery).
2. Rom doesn't boot, stuck in a bootloop.
3. Can get into fastboot mode, but pc doesn't recognize device and it doesn't show up when i type "fastboot devices".
I've already installed "Universal ADB Drivers from here -> http://www.koushikdutta.com/post/universal-adb-driver
What can i do to be able to access phone via fastboot?
Should i remove these drivers and try another driver? If so, which other driver should i install and test with?
I don't have any critical data on the phone, I just want to get it working again so my family members can decide who wants the phone.
thetearer said:
Problem is:
1. I no longer have a working recovery(can't boot into recovery).
2. Rom doesn't boot, stuck in a bootloop.
3. Can get into fastboot mode, but pc doesn't recognize device and it doesn't show up when i type "fastboot devices".
I've already installed "Universal ADB Drivers from here -> http://www.koushikdutta.com/post/universal-adb-driver
What can i do to be able to access phone via fastboot?
Should i remove these drivers and try another driver? If so, which other driver should i install and test with?
I don't have any critical data on the phone, I just want to get it working again so my family members can decide who wants the phone.
Click to expand...
Click to collapse
Uninstall all drivers, reboot PC, install those universal drivers again, reboot PC, connect phone in fastboot mode, try fastboot again.
timmaaa said:
Uninstall all drivers, reboot PC, install those universal drivers again, reboot PC, connect phone in fastboot mode, try fastboot again.
Click to expand...
Click to collapse
That's the order I did stuff in last time I believe. I'll try it again and report back
Hey folks,
i have a problem with my shieldtablet. The fastboot doesn't work properly. I cannot load anything via "fastboot flash blablabla.img". Minimal ADB and Fastboot just shows "waiting for device" and if i check the devices via "fastboot devices" is just shows nothing but the normal command prompt.
Then i did a mistake and flashed the twrp 3 version with an older one, so i am unable to enter the recovery-mode. If i chose Recovery Mode via bootloader (or if i restart the tablet into recovery mode) it has a short bootloop and then after some trials it starts normal into Blisspop.
How could i flash this without the fastboot? Is there any trick i could use?
The tablet is unlocked. I had several custom-roms installed. Currently Blisspop 6.4 without playstore.
That looks like your PC is not seeing your tablet. Boot into fastboot mode, connect it to your PC and look in Windows device manager for the device.
Thanks a lot! ADB worked fine on Win10. Last time I flashed the recovery was on my old Win7-System. It seems, that the Upgrade deleted just the fastboot drivers.
One last question: is it normal, that if i chose the fastboot protocoll entry on the bootloader, that it restarts the bootloader?
Yes, that's normal. The menu entry is redundant because when you see it you are in fastboot mode already.
I haven't really touched this tablet in a while, but i wanted to start using it again. I was running BlissPop. It was slow, and kept giving me an error when it was trying to update, so I decided to try a different ROM. So I downloaded the lineageOS ROM and tried to flash it.
However, TWRP kept giving me an error when I tried to flash the ROM. I don't remember exactly what the error was.
So, I thought that I needed to update TWRP. I tried through the "Official TWRP" app, but after doing so I was unable to boot into recovery mode at all. I could still get to the bootloader, but when I tried to select recovery mode it would give me an error and dump me back out to the bootloader menu.
I tried installing twrp through "TWRP Manager" app, but it just says "something went wrong"
I tried doing this using ADB. I connected the tablet, enabled USB debugging. If i do the ">adb devices" command, I can see the tablet. Then I did >adb reboot bootloader - which works, it reboots the device into the bootloader. But then I try and flash recovery and nothing happens, it just says <waiting for device>. And if I do > fastboot devices it doesn't list any devices.
If I reboot to the bootloader and select "Recovery Mode' i just get the nvidia boot logo and it stays there forever.
I don't know what else to try at this point.
I think I could get this to work if I could just get fastboot to recognize my device, but I'm not sure what's preventing that from happening.
mattlokk said:
I haven't really touched this tablet in a while, but i wanted to start using it again. I was running BlissPop. It was slow, and kept giving me an error when it was trying to update, so I decided to try a different ROM. So I downloaded the lineageOS ROM and tried to flash it.
However, TWRP kept giving me an error when I tried to flash the ROM. I don't remember exactly what the error was.
So, I thought that I needed to update TWRP. I tried through the "Official TWRP" app, but after doing so I was unable to boot into recovery mode at all. I could still get to the bootloader, but when I tried to select recovery mode it would give me an error and dump me back out to the bootloader menu.
I tried installing twrp through "TWRP Manager" app, but it just says "something went wrong"
I tried doing this using ADB. I connected the tablet, enabled USB debugging. If i do the ">adb devices" command, I can see the tablet. Then I did >adb reboot bootloader - which works, it reboots the device into the bootloader. But then I try and flash recovery and nothing happens, it just says <waiting for device>. And if I do > fastboot devices it doesn't list any devices.
If I reboot to the bootloader and select "Recovery Mode' i just get the nvidia boot logo and it stays there forever.
I don't know what else to try at this point.
I think I could get this to work if I could just get fastboot to recognize my device, but I'm not sure what's preventing that from happening.
Click to expand...
Click to collapse
Did you set:
Allow oem unlock in dev opt.
Fastboot protocol into BL?
Twrp app & manager need root to work.
Just flash the latest stock ROM first, lineageos requires having latest firmware.
I wrote a little guide not long ago about that (obviously, you can skip the F2FS steps if you don't need F2FS and just flash ROM after flashing latest TWRP)
Link
thanks for the help, i'll try and work through this soon.
fpozar said:
Just flash the latest stock ROM first, lineageos requires having latest firmware.
I wrote a little guide not long ago about that (obviously, you can skip the F2FS steps if you don't need F2FS and just flash ROM after flashing latest TWRP)
Link
Click to expand...
Click to collapse
I had seen your thread, and was intending on following it. nice post. 2 quick questions though
1) this is a shield tablet that was supposed to be remotely bricked by nvidia after the warranty claim. Will that happen if I flash the official recovery ROM?
2) how would I even flash that rom if I can't get recovery mode to work in trwp?
I think the root problem that I'm having is that I can't seem to connect to the device via fastboot (i'm sure i used the wrong terminology somehow)
edit: well I downloaded the USB driver for the shield tablet from nvidia, and i was able to install that (rather than the google usb driver). Fastboot finally recognized my device after that. I'm trying to flash the recovery now, but it doesn't seem to be doing anything, just been stuck on this screen for a while now: https://i.imgur.com/BUwj3Hx.png guess I'll continue to wait a while.
edit 2: well, finally got TWRP to flash over fastboot (https://i.imgur.com/tV1DqDv.png) however I still can't enter recovery mode. I just get the nvidia boot logo and then nothing happens. TWRP manager still says i don't have it installed either.
i'm about ready to give up on this... i've spent like 6 hours on this crap already and I feel like I keep getting further away from it.
mattlokk said:
I had seen your thread, and was intending on following it. nice post. 2 quick questions though
1) this is a shield tablet that was supposed to be remotely bricked by nvidia after the warranty claim. Will that happen if I flash the official recovery ROM?
2) how would I even flash that rom if I can't get recovery mode to work in trwp?
I think the root problem that I'm having is that I can't seem to connect to the device via fastboot (i'm sure i used the wrong terminology somehow)
edit: well I downloaded the USB driver for the shield tablet from nvidia, and i was able to install that (rather than the google usb driver). Fastboot finally recognized my device after that. I'm trying to flash the recovery now, but it doesn't seem to be doing anything, just been stuck on this screen for a while now: https://i.imgur.com/BUwj3Hx.png guess I'll continue to wait a while.
edit 2: well, finally got TWRP to flash over fastboot (https://i.imgur.com/tV1DqDv.png) however I still can't enter recovery mode. I just get the nvidia boot logo and then nothing happens. TWRP manager still says i don't have it installed either.
i'm about ready to give up on this... i've spent like 6 hours on this crap already and I feel like I keep getting further away from it.
Click to expand...
Click to collapse
Okay so I'm guessing you have stock ROM.
To flash TWRP you have to enter fastboot mode (vol down + power I believe) and flash the twrp image with fastboot flash recovery twrp.img (rename the shield tablet twrp to just twrp.img and place it into your easy adb and fastboot folder)
And DON'T reboot into OS, rather use your volume buttons to navigate to "restart to recovery" or just use hardware keys again directly from TWRP (vol up + power).
Good luck
fpozar said:
And DON'T reboot into OS, rather use your volume buttons to navigate to "restart to recovery" or just use hardware keys again directly from TWRP (vol up + power).
Good luck
Click to expand...
Click to collapse
Agreed. This is probably what is happening (as described on the TWRP webpage here:
Note many devices will replace your custom recovery automatically during first boot. To prevent this, use Google to find the proper key combo to enter recovery. After typing fastboot reboot, hold the key combo and boot to TWRP. Once TWRP is booted, TWRP will patch the stock ROM to prevent the stock ROM from replacing TWRP. If you don't follow this step, you will have to repeat the install.
Alternately, immediately rooting (flash SuperSU or Magisk) right after flashing TWRP, will prevent TWRP from being replaced with stock recovery.
Although the inconsistent fastboot connection, and how much trouble you had flashing TWRP initially, is a bit worrisome. Try using a different cable (maybe the one you are using is not connecting well?) try another USB port on the computer, and don't use a USB hub (connect direct to the PC).
Well, like they say: persistence is key. I kept pushing and trying new things until eventually.... I bricked the device. No, not really, it's working great now on LineageOS.
Thanks again to everyone who helped me out :good:. I'm still not sure exactly what caused TWRP to stop working on my device, however following this guide helped me fix it: https://forum.xda-developers.com/shield-tablet/help/help-stuck-nvidia-boot-screen-t3076462
The "flash-all.bat" restored everything to stock (including the recovery mode) and after that I was able to flash the latest TWRP and install Lineage.
Hello,
as the title says... I bricked my phone. In the past, I successfully installed LineageOS on my old Galaxy S3. I got a used Huawei P9 Lite recently and wanted to install a custom ROM. Here's what happened:
1. Unlocked the phone
2. Accessed Fastboot mode
3. Installed TWRP* via fastboot flash recovery file.img
4. This didn't work and I read on the web, I could try to flash revocery2 with fastboot flash recovery2 file.img
5. This didn't help either, so I decided to cancel my plan and use the manufactorer's system since the system still booted (of course, I didn't install any custom OS).
6. The phone told me on each startup it's unlocked. I didn't need the unlock anymore, so I accessed the Fastboot mode again.
7. I re-locked the system by using fastboot oem relock password.
8. The phone asked me to do confirm this action and do a factory reset
9. After this, I'm stuck at the Huawei logo and can't access Fastboot mode anymore!
When I shut down the phone, it immediately restarts itself. No chance to get into Fastboot mode again, which I did through pressing Vol- and plugging in an USB cable.
*I tried several versions, 3.0.1 and 3.2.1 since no version worked
This may be a beginner's fault, my last phone was already unlocked and I had not a single problem back then. But this time... I hope you can help me.
What would happen if I let drain the battery down to 0% - the phone wouldn't restart of course. If I press Vol- and plug it in, would I come back to Fastboot mode or would it stay in this loop?
Any help is appreciated!
A while ago i installed Lineage OS onto my OP7Pro without issue. I am now trying to go back to the stock OP OS.
I seem to have completely wiped the storage and now I just get "Qualcomm Crashdump Mode dm-verity device corrupted force dump kernal_restart".
I installed twrp on my PC and managed to boot the phone into twrp, I then pushed the twrp-installer.zip to the phone using adb, and then using the phone installed the zip, however when the phone reboots it just goes straight back to the Qualcomm Crashdump screen.
I have tried:
fastboot boot twrp.img (sucessfully boots phone into twrp)
adb sideload twrp-installer-3.5.2_9-0-guacamole.zip (adb confirmed sucessfull but then I can not find the file on the phone)
adb push twrp-installer-3.5.2_9-0-guacamole.zip /sdcard/ (when I go the install on twrp the file is there and I can install it)
But after reboot it's just straight back to Qualcomm Crashdump.
I tried msm and that didn't work, it would not detect the device.
Can anyone please help??
Try:
fastboot --set-active=other
Then fastboot boot TWRP.img
Install any ROM.zip or stockOOS.zip reboot to fastboot, boot TWRP and flash magisk.
If that doesn't work try again with msmtool, remember press both volume buttons for 5 seconds and connect USB cable(still pressing volume buttons) and your device should be detected
IthinkIfckedmyphone said:
A while ago i installed Lineage OS onto my OP7Pro without issue. I am now trying to go back to the stock OP OS.
I seem to have completely wiped the storage and now I just get "Qualcomm Crashdump Mode dm-verity device corrupted force dump kernal_restart".
I installed twrp on my PC and managed to boot the phone into twrp, I then pushed the twrp-installer.zip to the phone using adb, and then using the phone installed the zip, however when the phone reboots it just goes straight back to the Qualcomm Crashdump screen.
I have tried:
fastboot boot twrp.img (sucessfully boots phone into twrp)
adb sideload twrp-installer-3.5.2_9-0-guacamole.zip (adb confirmed sucessfull but then I can not find the file on the phone)
adb push twrp-installer-3.5.2_9-0-guacamole.zip /sdcard/ (when I go the install on twrp the file is there and I can install it)
But after reboot it's just straight back to Qualcomm Crashdump.
I tried msm and that didn't work, it would not detect the device.
Can anyone please help??
Click to expand...
Click to collapse
have you tried the 3.4 mauronofrio TWRP? maybe if you can get it to boot use it to flash oos 10.3.8 then update to 11 after