Recover dead screen phone information - Lenovo P2 Questions & Answers

Long story short.
My phone dropped in water.
Tried dry with rice, dehumidifier, open, clean contacts, dry . Screen is not working, totally black no responses and neither is the front button.
However, I can start, reboot, enter in fastboot and normal boot. I know it because I connect it to PC through USB and I can see the device connected as MTP device in normal mode and as android device in fastboot.
I cannot comunicate, nor extract info with ADB as USB developer mode was not enable. ADB doesn't see the device.
fastboot do see the device and I can get serial number and all variables with "fastboot getvar all".
I tried to flash a custom recovery from fastboot but It says that bootloader is locked and I cannot unlock it as I have no screen.
I tried to boot external image with fastboot boot image but again I cannot as bootloader is locked
I doesn't seem to autoconnect to my home wifi nor to the phone carrier network inserting a sim card with pin lock removed.
I have now ordered a new phone but I would like to extract info from this phone and acces to the storage.
Does anyone have any idea what else can I do to acces the phone or how to remove the bootloader lock withouth screen ??
Thanks

Related

Cant access USB debugging or any of the bootloader after replacing screen.

I recently replaced my Cracked Screen on a Verizon m8. I was on a custom rom with twrp installed. After the initial boot, I was having problems with a speaker and went to try to boot to the bootloader to do a RUU, when I noticed that I can no longer access the bootloader screen. It was then when I noticed that not even my computer was recognizing the phone no more. It's as if the phone won't debug no more. I can still access my TWRP by rebooting straight to recovery thru a app or the apm it has on the custom rom im using. I've tried to flash other roms with no success to get access to these two things. I was wondering if anyone had a stock twrp of Verizon version. As for all my twrp are from custom roms. Or if anyone has had this problem before or if any suggestions im open to anything to try and get to the bootloader screen. It also doesn't even boot the two or 3 second boot up screen until you get to the roms boot up screen. It also doesn't goto the bootloader screeen when it try's to access the bootloader. Even when booting straight to recovery stays black until twrp actually shows up. So it's as if bootloader is completely being bypassed. You cant use the volume keys to access the recovery cause everything is blank. Although on first attempt to access bootloader screen when I was stuck there in black. I had to figit the keys a bunch of times to reboot, hoping that I didn't activated something in that screen that caused the phone not to debug. Any suggestions is more then welcome and if someone has a stock twrp of recent stock rom 4.605.9 I believe it is would be more then great. Cant find one other then in zip or exe version. Hoping maybe that might reactivate those two things. Thanks for taking the time to read my problem.
Debugging or adb works within OS, and its not a mode in itself. I think you mean you can't access bootloader-fastboot mode.
Casetheace said:
I was wondering if anyone had a stock twrp of Verizon version. As for all my twrp are from custom roms.
Click to expand...
Click to collapse
You mean stock recovery. TWRP is a specific custom recovery, therefore always a custom one.
I don't think stock recovery will change anything. Bootloader is on a completely different partition.
Its odd that you can't access bootloader. It must still abe intact, otherwise the phone would not work at all.
Did you try (in OS): adb reboot-bootloader
Are you s-off or s-on?
The phone is S off. I was able to get the phone to USB debug. I took it out of the shell and plugged in the USB cord and it debug instantly . So I'm guessing with that I had to damage something when I either took the phone out of the shell originally or when I replaced the screen. Cause you literally have to take every piece of the phone off and then reasamble the phone from scratch. Once i put the phone back in shell, i couldnt get it to usb debug no more. But I still can't access the bootlader, nor is the first boot screen on power up before the main boot up screen starts. Also has no display if I reboot to recovery using a app from the phone. You don't see the screen where the red text would show up saying rebooting to recovery, display starts when it begins to show twrp on display. But when I had the shell off, and was able to access USB debug, I was able to use adb commands from my computer from fastboot mode , but phone had no display. Was able to run a RUU, was able to use adb to reboot to boot loader, then was able to fastboot get varall command. Even flashed a twrp recovery install in fastboot under command prompt . So that tells me that the boot loader is operational. That it has to be some sort of power failure in booting that nots powering the display on initial boot for 2 to 3 seconds , no power on bootliader display, no power rebooting to boot loader or rebooting to recovery until it boots recovery. Any ideas what would cause this failure of power of display during boot loader processes? By the way , have twrp 2.87 . Its a Verizon build, but I'm on a T-Mobile sim.
I've installed live boot and attached a log. If anyone can help or maybe know why this might happen. Believe there is two boots, each with a separate power. Main boot is the initial power up last two or three seconds, and then system boot.. Believe main boot is sending power off display and then power on display on system boot.

How to remove BootLoader unlocked notification from boot screen

Hey all. I'm in a bit of a pickle. My Tmobile LG g4 has stopped fast charging. When I plug in any cable, I do NOT get the USB notification which allows me to connect to my PC. Enabling the MTP option in the Dev options still does not allow the device to be connected to the PC to flash back to stock for warranty support.
Is there any way for me to save something to the SD card to reset back to stock? Do I have to connect it back to stock or at least relock the boot loader?
I've tried multiple PC's and multiple cables with no success to get the device connected. When connecting to a PC, I get. The device has malfuntioned on my machine.
ftblstr2319 said:
Hey all. I'm in a bit of a pickle. My Tmobile LG g4 has stopped fast charging. When I plug in any cable, I do NOT get the USB notification which allows me to connect to my PC. Enabling the MTP option in the Dev options still does not allow the device to be connected to the PC to flash back to stock for warranty support.
Is there any way for me to save something to the SD card to reset back to stock? Do I have to connect it back to stock or at least relock the boot loader?
I've tried multiple PC's and multiple cables with no success to get the device connected. When connecting to a PC, I get. The device has malfuntioned on my machine.
Click to expand...
Click to collapse
does it go into download mode.? phone off vol up key and connect usb.?
if you want to remove unlocked bootloader follow this comands
UPDATE:
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
Unfortunately, the computer will NOT detect the phone. No computer will. Using a USB cable that came with it , no luck either. Any ideas?
raptorddd said:
does it go into download mode.? phone off vol up key and connect usb.?
if you want to remove unlocked bootloader follow this comands
UPDATE:
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
Click to expand...
Click to collapse
ftblstr2319 said:
Unfortunately, the computer will NOT detect the phone. No computer will. Using a USB cable that came with it , no luck either. Any ideas?
Click to expand...
Click to collapse
so basically theres no comunication with phone. not really. unless you go and exhcnage it to tmobile, so you cant remove bootloader unlocked message either. if you lucky and tmobile doesnt check for it then you may be able to get it exchanged. as it not recognized in any computer ill say its hardware problem. good luck.

MOTO G6 - Qualcomm - EDL Mode

Hi,
I'm after some advice, how do I place the Moto G5 in Qualcomm mode or EDL mode.
I have entered the bootloader by holding down and turning the phone on, this allows me to use fastboot.
From there I can scroll down to QCOM, but when I press the power button it boots into the normal system instead of EDL mode.
I have also attempted from within fastboot to use:
fastboot oem edl
fastboot oem qcom-on
fastboot reboot emergency
and
fastboot reboot-edl
Although non of these have been sucessful.
I also have access to an EDL cable, although, when I plug the phone in, then flick the switch 10 seconds later, it does not enter EDL mode, it just charges.
The phone sometimes shows as File Storage Linux USB Gadget in device manager, although it is inaccessible, I have updated the laptop to use the qualcomm drivers, although I don't think it will ever recognise it if I can't put the phone into qualcomm mode to begin with.
Any help would be much appreciated.
What are you actually attempting to do?
This mode is generally used to unbrick a device but you have access to the bootloader/fastboot mode and you wouldn't use edl mode to unbrick this device anyway
It's also used on some device to unlock the bootloader but again you wouldn't do that with this device
So without knowing what you are trying to achieve I can't give you any advice
Technically if you start the phone normally then enable usb debugging in dev options then connect phone to PC and in a terminal window where you have adb set up type
adb reboot edl
Not all devices support this mode though and I've no idea if this one does
TheFixItMan said:
What are you actually attempting to do?
This mode is generally used to unbrick a device but you have access to the bootloader/fastboot mode and you wouldn't use edl mode to unbrick this device anyway
It's also used on some device to unlock the bootloader but again you wouldn't do that with this device
So without knowing what you are trying to achieve I can't give you any advice
Technically if you start the phone normally then enable usb debugging in dev options then connect phone to PC and in a terminal window where you have adb set up type
adb reboot edl
Not all devices support this mode though and I've no idea if this one does
Click to expand...
Click to collapse
Without going into too much detail as to why, there are tools I have access to which can be used to take a full back up of the entire memory block of the phone when it is in Qualcomm mode.
I cannot access adb on the device to use "adb reboot edl" so I am limited to either trying to activate Qualcomm using a button combination or via fastboot, unless you can advise another way.
Any help or a point in the right direction would be much appreciated.
jameswstubbs said:
Without going into too much detail as to why, there are tools I have access to which can be used to take a full back up of the entire memory block of the phone when it is in Qualcomm mode.
I cannot access adb on the device to use "adb reboot edl" so I am limited to either trying to activate Qualcomm using a button combination or via fastboot, unless you can advise another way.
Any help or a point in the right direction would be much appreciated.
Click to expand...
Click to collapse
Sounds dodgy to me - sounds like you're trying to access data from a phone that isn't yours so I won't be helping
TheFixItMan said:
Sounds dodgy to me - sounds like your trying to access data from a phone that isn't yours so I won't be helping
Click to expand...
Click to collapse
It's not dodgy, but I fully understand.
Thank you anyway.
try fastboot -i 0x2b4c oem ​​reboot-edl (it's working for LENOVO ZUK Z1 and ZUK Z2)
You can try (if you can/have the TWRP image) to flash TWRP and in reboot options select EDL.
In case the bootloader isn't unlocked you can also use fastboot boot [TWRP image name] to boot directly into TWRP without flashing and then repeat, go into reboot options and select edl.
Not sure if it works for you, if it does let me know that I have helped!
TheFixItMan said:
Sounds dodgy to me - sounds like you're trying to access data from a phone that isn't yours so I won't be helping
Click to expand...
Click to collapse
I need help too. So, I own a Moto G5s plus sanders. I unlocked its bootloader the day I got it. Didn't keep any backup and rooted it. I Also installed dot os based on android 11. But my 4G Volte connection was finicky. So, I decided to use a Volte zip patch. But, anyways I flashed the zip via TWRP and tried to reboot. But the phone didn't turn on after that. After a few minutes to my shock I understood that I hardbricked my mobile. No button combos, nothing worked. Anyways in my desperation I found a YouTube video showing the use of blankflash to revive a phone and lo and behold I used the procedure to again restore my device. It booted to the fastboot interface. But my happiness was short lived. My baseband was unknown at this point and the bootloader was I dunno downgraded to 0.5 inplace of 2.12. But, more importantly the unlock status was lost. I unlocked it again and all went well. I could even flashed TWRP. but then I realised I couldn't upgrade my bootloader. I couldn’t do anything. It's always gives a "security downgrade", "preflash validation failed" and "permission denied" error. I even tried RSA official rescue tool from Lenovo but even it was unsuccessful. It was never unsuccessful before that. Not even with a unlocked bootloader. I researched for days and tried custom ROMs. I flashed stock images. Nothing brought back my baseband and IMEI. When I type "fastboot oem unlock critical" it gives me permission denied error with a message. "Need OEM signed bootloader." I think the blankflash bootloader is the root of all evil. I need to change it and therefore I need to enter the edl mode. I have tried all adb commands and fastboot commands. The phone reboots okay after those commands but never goes into edl mode whatsoever. I am also ready to do a controlled hardbrick of my device to go into the edl mode so that I can use my device again with a proper bootloader and a properly working fastboot. Please help

Nexus 5X lost lock pattern (fastboot found, adb not found), recovery "no command"

Nexus 5X lost lock pattern (fastboot found, adb not found), recovery "no command"
Hello !
So, I've had the same pattern to unlock my screen AND boot my phone for months.
This morning, I can't unlock : I do not remember it, I try to connect the dot "as usual" and then start to think, and now I've got my muscle memory mixed with me trying to figure out what is the pattern! So I try different combination that I think are close.
Then I reboot...
Then... there's this lock on boot time also, I tried a few different combination, and I have only 5 tries left before device WIPE !
- I have installed Android studio, the USB Driver (which I think is the right one)
- I can either boot my phone in normal mode (stuck in the dot patern lock), either in fastboot mode
- From fasboot mode, I can go to recovery, but it says "No command"
- With the SDK tools, I can list my device with "fastboot devices" (and reboot it for example), but I can't have it to appear with "adb devices"
I'll try one or two other time later when I'm tired my patern, to see if i can do it without thinking...
BUT, Can't I remove the lockscreen somehow? I'd preferably backup some files and apps data before wiping it
What do you suggest!?
Thanks in advance
I finally had to wipe / factory reset.
On reboot, he asked me to unlock the phone WITH MY GOOGLE ACCOUNT.
So ... I had to wipe everything, then unlock it. Why, oh why, the boot screen does not have this option!?

Help removing PIN lock

Hi all,
I've been researching this phone for a while and I thought I'd take a chance on a functioning phone with a PIN lock. The phone turns on just fine but prompts for the pin when fully booted. I've been away from Android for a few years, but I can't seem to get into recovery mode no matter what I try. Vol down + power just boots to safe mode (pin still needed) and vol up either buzzes 3 times and does nothing or doesn't boot at all. Even tried with headphones plugged in USB port.
I was hoping that once in recovery mode I could wipe device or at least execute some ADB commands, but this is proving to be more difficult than expected. Also plugging into PC while on or off does not seem to appear in device manager, and no device is made in Windows. Are there any options here or should I just try to return to seller?
Thanks
try 'fastboot oem unlock' to factory reset device

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