Blackscreen, blue LED and no booting [Solved] - Lenovo P2 Questions & Answers

Hello guys,
I just got my oem unlock permission and flashed the latest recovery. After backing up i tried to install a rom like AICP. After instaling I hit "reboot". The first boot screen comes up and after this a the sreen turned black with a long vibation and the LED tuned blue. No booting.
Can someone help me? I've read something in a closed DEV Thread but there was no suggestion.
Thanks for any help.

press and hold your power button. A simple reboot is what you need.

roli0201 said:
Hello guys,
I just got my oem unlock permission and flashed the latest recovery. After backing up i tried to install a rom like AICP. After instaling I hit "reboot". The first boot screen comes up and after this a the sreen turned black with a long vibation and the LED tuned blue. No booting.
Can someone help me? I've read something in a closed DEV Thread but there was no suggestion.
Thanks for any help.
Click to expand...
Click to collapse
If only unlock permission without unlock bootloader then install custom rom or custom recovery you are in big trouble

If you already unlocked bootloader, i think you need to flash twrp 3.1.0 instead of 3.0.3.

Don't know why, but after switching tu TWRP 3.1 the issue was gone. Thank you titou!
Solved

Related

New ROM, recovery does not work.

I need help. I installed a new ROM (Parandroid 4.6) and now I just can't get into recovery, and Im stuck without Gapps. When I do it manually It just gets stuck in a black screen, and the blue led is on. If I do it through the power menu it just reboots manually.
I hope someone can help me, its urgent.
AcSilver said:
I need help. I installed a new ROM (Parandroid 4.6) and now I just can't get into recovery, and Im stuck without Gapps. When I do it manually It just gets stuck in a black screen, and the blue led is on. If I do it through the power menu it just reboots manually.
I hope someone can help me, its urgent.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=55991951#post55991951
You can not enter always into recovery. Then just change your Rom or do it with pc

Bootloader/Fastboot Problem Please Help!

Hi All
I would appreciate a little bit of thought/help on my recent problem with my OP3.
I was running Stock Oxygen 3.2.4 rooted (system-less)
I wanted to go back to stock. hence I flashed stock recovery and sideloaded Factory Zip.
Now I wanted to reflash twrp recovery just to keep it handy just in case I need to go back to rooted, but to my surprise when I adb reboot bootloader or choose fastboot mode from the boot menu I get presented with a blank/black screen and fastboot doesn't get detected. The Notification led is switched on a white colour and nothing happens.
Again I would really appreciate if anyone can help me with this as I've been an android owner for the last 6 years and never had this problem.
Thanks All!!
Does the device boots OS ? or just it can't boot into fastboot mode or recovery? Can you please elaborate ?

I think I hardbricked my Zuk z2?

So guys
I was on twrp and tried to flash a new rom but when it rebooted after the install, my Zuk z2 died.
It does nothing now. If I press the powerbutton for a long time it shortly vibrates for one second and the notification light also lights up for 1 second, but does not boot up. I tried volume combinations, don't work either.
What can I do guys?
Well, this guy managed to fix it
. Not sure if its the best way to fix it but it's still something
Effected said:
So guys
I was on twrp and tried to flash a new rom but when it rebooted after the install, my Zuk z2 died.
It does nothing now. If I press the powerbutton for a long time it shortly vibrates for one second and the notification light also lights up for 1 second, but does not boot up. I tried volume combinations, don't work either.
What can I do guys?
Click to expand...
Click to collapse
https://zukfans.eu/community/threads/how-to-unbrick-zuk-z2-from-diagnostic-port-900e.2856/ follow the steps
https://forum.xda-developers.com/lenovo-zuk-z2/how-to/deep-flash-revive-zuk-z2-hard-brick-t3577146
Use this if you didnt success from other methods.
tlxxxsracer said:
My video. The brick occurs when you usually backup a room with one version of twrp, flash another variant of twrp and then restore the nandroid from before.
Happened to me. Flashed MIUI, and then tried to restore a nandroid (not realising the TWRP changed).
Hope the video helps. Plus then you have a cable premade in case it happens again
Click to expand...
Click to collapse
Hello. Maybe you can give me some advice. I am stuck in engineering/diagnostics mode after I accidentally selected that option when I was in the bootloader trying to flash TWRP.
Basically, I had installed TWRP and Mokee 7.1.1. I wanted to check out the original chinese ROM so I relocked, flashed with QFIL, etc. I had first flashed MM, then I flashed latest chinese Nougat official.
I didn't like it, so I was trying to unlock the bootloader again, and in the process I ended up selecting the diagnostics/engineering mode. The phone was stuck there and I had no way of accessing the bootloader to reflash with QFIL or MiFlash
TO try to fix, I used the deep flash method you describe in the video, only I found it in zukfans. I was able to open the 9008 port, flash with QFIL/MiFlash. Even though both tools describe the flash as successful, on boot, it goes back to engineering mode.
How to I get out of there? Is my phone done?
Thanks!

[HELP] Orange Screen of Death - Problem

Hi! I have a 6/64 Mi 6 and I have a strange problem that occurs sometimes.
I have the bootloader unlocked since ever and I like test and use custom ROMs... But, this problem is annoying me.
Case 1 - If I use whatever MIUI based ROM + the official TWRP, it's just fine, works like a charm.
Case 2 - If I use whatever MIUI based ROM + unnoficial TWRP that supports TREBLE the orange screen appears.
Case 3 - If I use whatever ROM not based in MIUI + unnoficial TWRP the orange screen also appears.
It appears when I reboot the phone in TWRP, fastboot or normal mode, and if I'm in TWRP and reboot the phone, the screen appears and all the times that it appears, I have to force reboot the phone holding the power button and then, the phone works normaly.
Have anyone experienced this? I'm very upset with this situation. I will attach a picture of the orange screen.
Right now, thanks to anyone who can help me or debate!
Sorry for my english. Regards, Henrique.
You ever tried full wipe with locking bootloader via miflash ?
if not, i recommend so!
hmnt said:
You ever tried full wipe with locking bootloader via miflash ?
if not, i recommend so!
Click to expand...
Click to collapse
Until then I was leaving this as a last option, but there was no way... I relocked the bootloader and now I'm waiting about 50 hours to unlock again... I hope this can solve my problem! I will leave a feddback when I unlock again!
Thanks for the suggestion!
I have got the same problem. Have you solved it?

Phone not restarting after Majisk update, stuck at boot screen with blue led on

Hi, In my Lenovo P2 I updated Majisk through recommended mode, it asked to reboot, but phone not rebooting. Boot screen appears and then vibrates for few seconds with blue led light and then phone goes blank/dark with blue led on. I couldn't able to use my phone now. Please help. Thanks in advance.
p.s I tried Magisk uninstaller through twrp flash. After flashing, now phone is rebooting and directly going to twrp recovery. No blue led and vibration now. Can anybody help with further fix? Any help is hugely appreciated. thanks in advance
extract boot.img from Rom file you installed. Go to twrp, go to install image option , flash boot partition with that image..
your device will boot, then perform the root steps again as u will loose the root. The problem here is that magisk messes up the boot partition..
I have already made a post year ago for this problem. hope this helps

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