[Q] Can´t access fastboot - Nexus 4 Q&A, Help & Troubleshooting

Hi,
I rooted my N4 and instaled CWM and CM11 but after instaling gapps my GUI go complete crazy and turn black. I can ´t get to settings but I can start apps from lockscreen shortcuts. When i tried go to bootloader or fastboot it didnt work and I cant get to them in any way. So question is how can I reinstall the ROM or fix CMW? I tried to connect to ADB but whitout possibility to accest setting I cant get device found.
Thank you a lot

Can you boot your phone into the bootloader? And if so does your pc recognize the device? I'd the issue with your phone or the pc recognizing your phone?
Sent from my Nexus 5 using XDA Free mobile app

No I cant get into bootloader or fastboot (power-vol) but system starts normally except i cant get into settings or applications menu because it crases instantly. My PC recognizes the phone and i can put files in phone. I have probably turn of USB debugging and cant find phone in ADB.
Thank you for response

honzicek said:
No I cant get into bootloader or fastboot (power-vol) but system starts normally except i cant get into settings or applications menu because it crases instantly. My PC recognizes the phone and i can put files in phone. I have probably turn of USB debugging and cant find phone in ADB.
Thank you for response
Click to expand...
Click to collapse
Can you boot into recovery from your system, or does it crash too soon? If you can flash a nandroid backup
Sent from my Nexus 5 using XDA Free mobile app

No basically I start to a system and have black screen. Only things I can start-up are apps on lockscreen shortcut and top panel (contacts,flashlight,GPS, calendar).

If your phone is booting normally and you can't access bootloader then either your buttons are broken or you're pressing it wrong.
Turn the phone off completely then hold both volume up and down together then continue to hold them while pressing power until it vibrates.

You were right Easyiest way is the best way! I disassembled the phone adapt the buttons and now it works perfect with bootloader etc.
Thanks for remind me other possibility

Related

Touchscreen not responding, cant turn on USB debugging!

I have been using the Glazed JB ROM and was loving it but for some reason after 'allowing' Tasker in the accessibility options my N7 is stuck and does not respond to the touchscreen except to unlock from lockscreen. Literally I can boot to Android but cant do anything!
Worse thing is that when I power off it just reboots so cant access CWM recovery and USB debugging is off so I cant connect to ADB!
How the hell can I get to the recovery screen so that I can wipe & re-flash the ROM?
Please can anyone suggest something?
Thanks
dangeroid said:
I have been using the Glazed JB ROM and was loving it but for some reason after 'allowing' Tasker in the accessibility options my N7 is stuck and does not respond to the touchscreen except to unlock from lockscreen. Literally I can boot to Android but cant do anything!
Worse thing is that when I power off it just reboots so cant access CWM recovery and USB debugging is off so I cant connect to ADB!
How the hell can I get to the recovery screen so that I can wipe & re-flash the ROM?
Please can anyone suggest something?
Thanks
Click to expand...
Click to collapse
Phew - just after writing this cry for help I worked out you can get to recovery from Android the same way as when the device is off - by holding power on, volume up and volume down. Thank ****!

How to retrieve data with cracked screen

So my phone fell and the screen cracked. The bottom portion of the touchscreen is useless, preventing me from even entering my unlock code.
I'm trying to figure out how to get data off the phone. In searching the forums, adb and Moborobo appear to be 2 ways to do so, however the G2 seems to require you choosing a few settings to enable debug mode, switching to PC Connection, etc, for these to work, and I'm unable to use the display.
Any suggestions on how to extract files from the phone? Phone is rooted.
Thank you!
You can try LG OSP(get it from the lg site) to unlock your phone and get mtp or adb to work.
I took a look at twrp, the latest one, but it appears that adb doesn't not work for me there. You can try though, boot into it by holding power and volume down when the phone is off, the pressing power button thrice. BUT BE CAREFUL IF YOU DON'T HAVE TWRP IT REALLY WIPES THE PHONE.
Sent from my LG-D802 using xda app-developers app

Screen black (broken) - How to recovery data (no usb-debug)

Hi all,
I have a particularly tricky case here. A OnePlus 3T with a broken screen (its black, can't tell if its registering taps) which I need to recovery data (photos) from. Normally I'd just use ADB but of course usb-debugging isn't enabled. I've tried rebooting into recovery... hold the power button and vol-down until the phone vibrates, keep holding for a few seconds. Then wait. Then vol down twice and power again to hopefully select English but the when I try
Code:
adb devices
nothing comes up on the list.
I'm wondering if anyone has any ideas how I can recover data/photos from this device.
One again the facts are:
-OnePlus 3T
-screen is broken, black, doesn't display anything
-usb-debugging is NOT enabled
-i can see the device in fastboot mode (boot w/ vol-up+power)
Thanks!
Maybe try a mouse with OTG. Would be horribly difficult i guess. But can probably work.
Also with any recovery, it would require your pin to enter the recovery (for decrypting the partitions); so that's a no go.
All you can try is to just boot the phone normally and try any input with an external mouse with OTG. Bring it to a point where the phone is powered on and unlocked so that you can copy data off the flash storage in MTP mode.
Ps: why don't you try to normally boot the phone and use fingerprint unlock?
did you trying with this link?
bluuquthug said:
did you trying with this link?
Click to expand...
Click to collapse
Using this tutorial in this case would make no sense, since the damage is physical and this way you're going to lose all the data currently stored on the phone.
willjeffery said:
Hi all,
I have a particularly tricky case here. A OnePlus 3T with a broken screen (its black, can't tell if its registering taps) which I need to recovery data (photos) from. Normally I'd just use ADB but of course usb-debugging isn't enabled. I've tried rebooting into recovery... hold the power button and vol-down until the phone vibrates, keep holding for a few seconds. Then wait. Then vol down twice and power again to hopefully select English but the when I try
Code:
adb devices
nothing comes up on the list.
I'm wondering if anyone has any ideas how I can recover data/photos from this device.
One again the facts are:
-OnePlus 3T
-screen is broken, black, doesn't display anything
-usb-debugging is NOT enabled
-i can see the device in fastboot mode (boot w/ vol-up+power)
Thanks!
Click to expand...
Click to collapse
if you have no usb-debugging and cannot see screen you are out of luck. same thing happen to me. the only thing that worked was I had twrp recovery and was able to boot into it. Recovery by default is in mtp so you will be able to see all your folders and transfer pics or backup files. last resort was to send it to oneplus repair which will cost about 100 bucks and you will get your phone back within 7 days remember to tell them to not reset phone because they will if you dont. good luck
You can also recover the data very easy through data recovery softwares. No usb-debugging and cannot see screen you are out of luck. I also have to face same problem the only thing that worked was I had twrp recovery and was able to boot into it.
You can try to flash TWRP in fastboot, then reboot recovery via fastboot command. MTP would work unless a pin is required in TWRP.
I can feel the situation,the phone doesn't work properly.

Instantly reboots after booting into recovery

I installed LineageOS 14.1 but I was having some blue screens so I decided to go back to stock ROM but I had a brainfart and rebooted after wiping everything except microSD, and now I can't boot my phone normaly, nor enter recovery mode or download mode.
What is happening with TWRP recovery mode is that it seems to load properly but then it doesn't give me options or anything it just starts formatting cache or something for like 2 seconds and then just tries to reboot normally, but there's no OS so it just gives me a blue screen(im not at home right now but im panicking, i will upload a video for better understanding in a couple hours).
And with download mode it just stays on the charging screen.
Did I just brick my ****ing phone? Im on the verge of tears, I have been watching videos and reading for the past 2 hours and nothing seems to help
Patala1 said:
I installed LineageOS 14.1 but I was having some blue screens so I decided to go back to stock ROM but I had a brainfart and rebooted after wiping everything except microSD, and now I can't boot my phone normaly, nor enter recovery mode or download mode.
What is happening with TWRP recovery mode is that it seems to load properly but then it doesn't give me options or anything it just starts formatting cache or something for like 2 seconds and then just tries to reboot normally, but there's no OS so it just gives me a blue screen(im not at home right now but im panicking, i will upload a video for better understanding in a couple hours).
And with download mode it just stays on the charging screen.
Did I just brick my ****ing phone? Im on the verge of tears, I have been watching videos and reading for the past 2 hours and nothing seems to help
Click to expand...
Click to collapse
To boot into download mode, you must first turn it off then connect your phone to pc and then long press power up button.
As with the twrp formatting cache or something like that, you must have downloaded a buggy version. For now, if you have a pc nearby try to boot into twrp with adb.
mayankjet said:
To boot into download mode, you must first turn it off then connect your phone to pc and then long press power up button.
As with the twrp formatting cache or something like that, you must have downloaded a buggy version. For now, if you have a pc nearby try to boot into twrp with adb.
Click to expand...
Click to collapse
Download mode still isn't working with the computer im trying, are you saying I just have to turn it off, plug it into the pc(charging screen appears), and just hold power button alone until I get to DL mode? Does my computer need a specific driver already installed for this?
And how would I go about giving my phone commands with adb if I can't boot it into anything? Should my pc recognize the device and be able to use adb when it's in the blue "Subsystem Crash" screen, or maybe when in the first 2 screens before booting into recovery where you have to press "Yes" twice, or when? Maybe when it's charging?
Thanks a lot for the help
Patala1 said:
Download mode still isn't working with the computer im trying, are you saying I just have to turn it off, plug it into the pc(charging screen appears), and just hold power button alone until I get to DL mode? Does my computer need a specific driver already installed for this?
And how would I go about giving my phone commands with adb if I can't boot it into anything? Should my pc recognize the device and be able to use adb when it's in the blue "Subsystem Crash" screen, or maybe when in the first 2 screens before booting into recovery where you have to press "Yes" twice, or when? Maybe when it's charging?
Thanks a lot for the help
Click to expand...
Click to collapse
Yes, you need to turn off your phone and plug the usb cable in your phone while holding volume up button until it goes into download mode( you must connect it to a pc or laptop). Also, you don't need specific drivers for that.
To boot into twrp with adb, you must first boot into os, or boot into twrp with hardware keys, assuming you can't do any of these then your only option is flashing a new kdz via download mode.
Edit: You need adb drivers installed on your pc if you're going to use adb commands on your pc.
mayankjet said:
Yes, you need to turn off your phone and plug the usb cable in your phone while holding volume up button until it goes into download mode( you must connect it to a pc or laptop). Also, you don't need specific drivers for that.
To boot into twrp with adb, you must first boot into os, or boot into twrp with hardware keys, assuming you can't do any of these then your only option is flashing a new kdz via download mode.
Edit: You need adb drivers installed on your pc if you're going to use adb commands on your pc.
Click to expand...
Click to collapse
Fixed it, thank you a lot my friend, saved my ass
Patala1 said:
Fixed it, thank you a lot my friend, saved my ass
Click to expand...
Click to collapse
:good:
OK I have added the fix in guide

How to backup data on broken screen device

Hello !
I recently have an accident with my Samsung Galaxy J5 2017 (SM-J530) and now the screen is totally broken, he stay black.
But I think the phone is always working , because it vibrate when I force reboot with power and volume down buttons.
I would like to recover my datas because i didnt save them with my google and Samsung accounts.
I know that the USB debugging is enable and probably OEM unlock (not really sure, don't remember).
I tested ADB commands and the device is detected but unauthorized because I can't allow acces on the screen.
My phone is also detected by Odin in download mode and I know that we can use ADB in custom recovery like TWRP but to install it permanantly and see internal storage we need to do a format data.
If someone have a solution and can help me,
Thanks !
az3rby said:
Hello !
I recently have an accident with my Samsung Galaxy J5 2017 (SM-J530) and now the screen is totally broken, he stay black.
But I think the phone is always working , because it vibrate when I force reboot with power and volume down buttons.
I would like to recover my datas because i didnt save them with my google and Samsung accounts.
I know that the USB debugging is enable and probably OEM unlock (not really sure, don't remember).
I tested ADB commands and the device is detected but unauthorized because I can't allow acces on the screen.
My phone is also detected by Odin in download mode and I know that we can use ADB in custom recovery like TWRP but to install it permanantly and see internal storage we need to do a format data.
If someone have a solution and can help me,
Thanks !
Click to expand...
Click to collapse
Flash twrp then try to go to it
And plug phone into your pc
Your internal storage will be there
To install twrp you don't need to format data btw!
The only thing that is needed to know is about oem luck to not f$uck up your device!
Thank you for your answer, I tried to flash TWRP with Odin and I didn't have any error.
After that, I rebooted in recovery mode and I can see my device on windows explorer but i see nothing, like when a device isn't unlock.
So I'm not sure if i am really in recovery mode, after flash in download mode I pushed Power + Home + Volume down buttons and just after that my device is disconect on Odin, I replace volume down by volume up.
If my OEM is lock, is Odin return error ? Otherwise how to know ?
Thanks (and excuse my bad english, i'm french...) !
az3rby said:
Thank you for your answer, I tried to flash TWRP with Odin and I didn't have any error.
After that, I rebooted in recovery mode and I can see my device on windows explorer but i see nothing, like when a device isn't unlock.
So I'm not sure if i am really in recovery mode, after flash in download mode I pushed Power + Home + Volume down buttons and just after that my device is disconect on Odin, I replace volume down by volume up.
If my OEM is lock, is Odin return error ? Otherwise how to know ?
Thanks (and excuse my bad english, i'm french...) !
Click to expand...
Click to collapse
At first be sure that you flashed it right
I mean that auto reboot should be untick on odin

Categories

Resources