Touchscreen unresponsive after flashing new kernel - Xperia Z4 Tablet Q&A, Help & Troubleshooting

Hi xda developers
I was using a guide from this forum to get root on a Z4 so that I could install custom ROMs: https://forum.xda-developers.com/z5-compact/general/guide-how-to-root-z5c-painful-using-t3549388. I know it's a guide for a z5 compact (which is the device I ultimately hope to install a custom ROM on to). I was doing this as a dummy run to get myself familiar with the process on a device that isn't mission critical.
I got as far as completing step 6 in which i used phh's superuser instead of SuperSU, as advised, as did not use Xposed.
Code:
C:\Users\newuser\Downloads\rootkernel_v5.23_Windows_Linux>fastboot flash boot bo
ot.img
target reported max download size of 536870912 bytes
sending 'boot' (15244 KB)...
OKAY [ 0.689s]
writing 'boot'...
OKAY [ 0.139s]
finished. total time: 0.834s
After rebooting, the buttons work but the touchscreen is unresponsive. I've repeated the process and the problem persists. Where should I be looking to diagnose the root of the problem or what other things could I be trying.
Any suggestions appreciated.

Related

LG G5 TWRP fastboot failing

Hi all,
I have an LG G5 H850. I'm trying to install TWRP using ADB. I've had it previously and it worked fine. I'm pretty sure the bootloader is unlocked. Anyway, when I do "fastboot flash recovery twrp-3.1.1.1-0-h850.img" I get the following output:
target reported max download size of 536870912 bytes
sending 'recovery' (19076 KB)...
OKAY [ 0.431s]
writing 'recovery'...
OKAY [ 0.345s]
finished. total time: 0.781s
To me, that looks as though thats worked fine. Now when I try fastboot boot twrp-3.1.1.1-0-h850.img I get the following:
downloading 'boot.img'...
OKAY [ 0.432s]
booting...
FAILED (remote: unknown command)
finished. total time: 0.456s
Has anyone got any ideas on this?
Same here
I am having the same problem, please help
Had this issue a while back. I resorted to doing complete flash with LGUP to the latest version and then it worked. I had been messing around with various ROMS on different android versions.
lywyn said:
Had this issue a while back. I resorted to doing complete flash with LGUP to the latest version and then it worked. I had been messing around with various ROMS on different android versions.
Click to expand...
Click to collapse
Don't happen to know where I could get a rom that it would work with do you?
Managed to solve this. Flashed the TWRP image using fastboot flash recovery <img> via adb. Then I unplugged from USB, and got into recovery mode by doing power + volume down buttons and quickly release and repress ont he LG logo. Answered yes to both questions and got into TWRP.
Barsbeh said:
Managed to solve this. Flashed the TWRP image using fastboot flash recovery <img> via adb. Then I unplugged from USB, and got into recovery mode by doing power + volume down buttons and quickly release and repress ont he LG logo. Answered yes to both questions and got into TWRP.
Click to expand...
Click to collapse
That is the required way of doing it. You have to boot into recovery after flashing the recovery or it gets reset.
Hi,
Having a similar problem since trying to update my ROM ... and the Magisk install failed. Now I can only get to fastboot, can't get to recovery. And, tried this,
Code:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash recovery twrp-3.1.1-0-h830.img
target reported max download size of 536870912 bytes
sending 'recovery' (18644 KB)...
OKAY [ 0.439s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time: 0.461s
Help!?! ... and thanks!

Hauwei Y5 2017 (MYA-L22) Recovery flashes and then reverts back to stock recovery

EDIT: Got TWRP on by flashing it to boot. Now i need either a custom rom or stock rom
Hi, i have been trying to install TWRP on my Hauwei Y5 2017 (MYA-L22) for a few months now. i have found multiple TWRP builds and i have tried to flash them but when i do it says:
Code:
C:\adb - Y5 (2017)>fastboot flash recovery twrp-huawei-y5.img
target reported max download size of 134217728 bytes
sending 'recovery' (13494 KB)...
OKAY [ 1.291s]
writing 'recovery'...
OKAY [ 0.408s]
finished. total time: 1.700s
and then i reboot back into the phone, and the run:
Code:
C:\adb - Y5 (2017)>adb reboot bootloader
and it goes into the stock recovery, although i just flashed a custom recovery.
The phone was bought in Vietnam and runs: Android 6.0 And EMUI 4.1
Any more info you may need I am willing to give.
Reddit Thread: https://redd.it/7vltsb
uneedsomemilk said:
EDIT: Got TWRP on by flashing it to boot. Now i need either a custom rom or stock rom
Hi, i have been trying to install TWRP on my Hauwei Y5 2017 (MYA-L22) for a few months now. i have found multiple TWRP builds and i have tried to flash them but when i do it says:
Code:
C:\adb - Y5 (2017)>fastboot flash recovery twrp-huawei-y5.img
target reported max download size of 134217728 bytes
sending 'recovery' (13494 KB)...
OKAY [ 1.291s]
writing 'recovery'...
OKAY [ 0.408s]
finished. total time: 1.700s
and then i reboot back into the phone, and the run:
Code:
C:\adb - Y5 (2017)>adb reboot bootloader
and it goes into the stock recovery, although i just flashed a custom recovery.
The phone was bought in Vietnam and runs: Android 6.0 And EMUI 4.1
Any more info you may need I am willing to give.
Reddit Thread: https://redd.it/7vltsb
Click to expand...
Click to collapse
Can you please tell me that how you unlock the bootloader and twrp link also?

Fastboot mode

Could someone help my device is brick and currently stuck in fastboot attempted to flash TWRP error message
fastboot flash recovery twrp-2.8.7.1-v500.img
target reported max download size of 536870912 bytes
sending 'recovery' (12492 KB)...
OKAY [ 0.396s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time: 0.402s
highgrade said:
Could someone help my device is brick and currently stuck in fastboot attempted to flash TWRP error message
fastboot flash recovery twrp-2.8.7.1-v500.img
target reported max download size of 536870912 bytes
sending 'recovery' (12492 KB)...
OKAY [ 0.396s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time: 0.402s
Click to expand...
Click to collapse
Well this is a v521 forum. So if you have a v521, then trying to flash twrp for the v500 would be your first mistake.
Can you kdz back to stock?
I have the 521 I trying to Restoring kdz lg tool not seeing my device detected
highgrade said:
I have the 521 I trying to Restoring kdz lg tool not seeing my device detected
Click to expand...
Click to collapse
Yeah you tried to flash twrp for the v500 which could probably mean a hard brick.
Read the last couple pages of this thread to see if it will work for you. Good luck. https://forum.xda-developers.com/g-...-v521-guide-to-update-v521-lg-t3533338/page28

search root and custom rom for lenovo tab tb-x505l

search root and custom rom for lenovo tab tb-x505l
thanks
Root lenovo M10 X505L
pascalo69pascalo69 said:
search root and custom rom for lenovo tab tb-x505l
thanks
Click to expand...
Click to collapse
Hi! I am looking for the same...Feeling quite alone with this tab model... Any luck with this?
Still no one knows how to root it?
Its easy to unlock bootloader, but then trying to flash patched boot img, I get this:
"c:\adb>fastboot flash boot magisk_patched.img
target reported max download size of 535822336 bytes
sending 'boot' (0 KB)...
FAILED ()
finished. total time: 0.003s"
Who knows where the problem could be? :/
EDIT: I made it, just tried in other PC and it worked. Finally I have this old tablet with unlocked bootloader & rooted (^^,)
Would you please describe what you have done to unlock bootloader and to root? And please share the links to to the apps (magisk patched...).
Hi,
can you please share your steps and files.
i am really interested in rooting my x505l
watafak said:
Its easy to unlock bootloader, but then trying to flash patched boot img, I get this:
"c:\adb>fastboot flash boot magisk_patched.img
target reported max download size of 535822336 bytes
sending 'boot' (0 KB)...
FAILED ()
finished. total time: 0.003s"
Who knows where the problem could be? :/
EDIT: I made it, just tried in other PC and it worked. Finally I have this old tablet with unlocked bootloader & rooted (^^,)
Click to expand...
Click to collapse

(soft brick)Please help me with my MiPad

Hello Guys,
I need help with my MiPad 1 (model: A0101).
Earlier, I had Cynogenmod 12.1 flashed which was giving me continuous problems. Today, I looked in the forums after 2-3 years of time to flash another ROM. There I saw devs asking to merge the partitions first before installing the ROM. I started the process of clearing dalvik cache and data via twrp. Then, I flashed the 'Repartition_MI_Pad_1_2GB_zardMi3.zip'. After flashing, the device rebooted to fastboot.
Now, I am not able to move back to recovery and there is no OS installed. I tried flashing TWRP,
fastboot flash recovery recovery-03.11.2018.img
target reported max download size of 645922816 bytes
sending 'recovery' (13626 KB)...
OKAY [ 0.622s]
writing 'recovery'...
OKAY [ 0.391s]
finished. total time: 1.013s
It installs it, but when I try to go to recovery. It comes back to fastboot.
Your help on this will be very much appreciated.

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