Database Users

Nexus 7 Bootloader does not respond to buttons when plugged into USB bootloader bugs

Making this thread because it's an extremely common problem and there are 4 terribly named threads about it that are difficult to search.
The Nexus 7 stock bootloader 3.34 has a couple bugs:
1. When booting to fastboot with any sort of USB plugged in, your buttons on the side may not respond. In this case, pull the cable and hold down power + Vol Down until it reboots. The buttons should now respond and you can plug USB back in if you wish.
2. The bootloader has problems booting to recovery. It might hang at the Google screen. In this case, get back into the bootloader, connect to a computer and
> fastboot flash recovery recovery-clockwork-touch-6.0.1.0-grouper.img
then use the buttons to boot into recovery. Don't worry, your nandroids are safe.
Why does this stuff happen? Called the Google Nexus Support line and they're aware of the bug in the bootloader. Until this is fixed, don't flash strange ROMs without a computer nearby to get you out of a soft-brick situation.
BE AWARE that if you flash back to stock from the Google image after getting back into recovery, the next time you boot up, your recovery will be GONE. Try to flash a stock image from XDA instead that doesn't overwrite the recovery and save yourself a headache.
That is all.
Thanks.

All hail jbdubbs
jbdubbs said:
Making this thread because it's an extremely common problem and there are 4 terribly named threads about it that are difficult to search.
The Nexus 7 stock bootloader 3.34 has a couple bugs:
1. When booting to fastboot with any sort of USB plugged in, your buttons on the side may not respond. In this case, pull the cable and hold down power + Vol Down until it reboots. The buttons should now respond and you can plug USB back in if you wish.
2. The bootloader has problems booting to recovery. It might hang at the Google screen. In this case, get back into the bootloader, connect to a computer and
> fastboot flash recovery recovery-clockwork-touch-6.0.1.0-grouper.img
then use the buttons to boot into recovery. Don't worry, your nandroids are safe.
Why does this stuff happen? Called the Google Nexus Support line and they're aware of the bug in the bootloader. Until this is fixed, don't flash strange ROMs without a computer nearby to get you out of a soft-brick situation.
BE AWARE that if you flash back to stock from the Google image after getting back into recovery, the next time you boot up, your recovery will be GONE. Try to flash a stock image from XDA instead that doesn't overwrite the recovery and save yourself a headache.
That is all.
Thanks.
Click to expand...
Click to collapse
i thank you deeply for getting rid of my worries , THANK YOU THANK YOU . I THOUGHT I LOST MY BABY :8 YOU GOT BACK MA HOPE

I have bootloader 3.34 and a softbrick. I booted without the USB connected, went to recovery and it hangs. So I was going to flash the recovery, but when I plug the USB in, after I have already booted into the bootloader with the buttons working, everything seem to freeze. My command prompt just says "waiting for device."
When I unplug it, it does not response anymore until i restart it without the USB.

joseph_gee said:
I have bootloader 3.34 and a softbrick. I booted without the USB connected, went to recovery and it hangs. So I was going to flash the recovery, but when I plug the USB in, after I have already booted into the bootloader with the buttons working, everything seem to freeze. My command prompt just says "waiting for device."
When I unplug it, it does not response anymore until i restart it without the USB.
Click to expand...
Click to collapse
Same problem here... Plus, I just flashed a new kernel and now can't get the recovery -or- Android to boot. Trying to run recovery just sits on the startup screen with the unlocked padlock and does nothing. For android, it has been sitting on the Android boot-animation screen for over two hours.
So:
1. Can't connect to PC with bootloader.
2. Can't boot recovery.
3. Can't boot Android.
Any suggestions other than buy a new Nexus-7? :crying:

joseph_gee said:
I have bootloader 3.34 and a softbrick. I booted without the USB connected, went to recovery and it hangs. So I was going to flash the recovery, but when I plug the USB in, after I have already booted into the bootloader with the buttons working, everything seem to freeze. My command prompt just says "waiting for device."
When I unplug it, it does not response anymore until i restart it without the USB.
Click to expand...
Click to collapse
I solved my own problem. I just uninstalled and reinstalled the drivers on my computer using mskip's toolkit

Problems with bootloader and fastboot
I'm having a problem with this step...
1. When booting to fastboot with any sort of USB plugged in, your buttons on the side may not respond. In this case, pull the cable and hold down power + Vol Down until it reboots. The buttons should now respond and you can plug USB back in if you wish.
the problem is that whenever the USB cable is plugged in, the buttons don't navigate through the options.
however, whenever the usb is NOT plugged in (and rebooted bootloader) the button work just fine.
I don't have a recovery currently installed.
The issue is not with drivers on the computer, happens while usb plugged in both windows and linux or simply just plugged into a wall outlet to charge.
I need to get into fastboot but i'm having this issue with the bootloader (corrupted?).
any help would be appreciated.

[Q] Dead LG G2 Sprint

I have lg g2 sprint version. I have unlocked it by following a tutorial on youtube. On the ui there was a message that there is software update and i tapped to install it, but it was stuck on fastboot mode started udc_start() so i followed tutorial from a forum and fastfbooted boot aboot recovery and laf, but forgot to run fastboot reboot and turned off and on the phone. Now when I try to start the phone it shows the lg logo and after that only the led is flashing no matter if it's charging or not. Any ideas what to do? I have plugged it in to power it, but I am not sure whether it's charging now.
I can enter in download mode by pressing volume up and power button, but I don't have pc near me to try to flash to stock.

lolopopolo said:
I have lg g2 sprint version. I have unlocked it by following a tutorial on youtube. On the ui there was a message that there is software update and i tapped to install it, but it was stuck on fastboot mode started udc_start() so i followed tutorial from a forum and fastfbooted boot aboot recovery and laf, but forgot to run fastboot reboot and turned off and on the phone. Now when I try to start the phone it shows the lg logo and after that only the led is flashing no matter if it's charging or not. Any ideas what to do? I have plugged it in to power it, but I am not sure whether it's charging now.
I can enter in download mode by pressing volume up and power button, but I don't have pc near me to try to flash to stock.
Click to expand...
Click to collapse
The situation after a couple restarts is:
When I put to charge the lg logo appears and the led is flashing from yellow to blue
if I hold down and power button it says "Recovery mode. Loading..." and nothing happens
If I hold up and power button it enters download mode
Can I charge the phone in order to flash it to stock?
p.s. I am turning it off by holding the power button for ~20 sec

Can't get p9lite into fastboot/bootloader mode anymore

Hi everone,
I did a rollback via dload, but messed up an later update. Now I can't get into fastboot mode anymore.
Had a bootloop yesterday and couldn't power down the device, everytime it booted immediately again and stuck with the Huawei logo.
I let the battery drain over night and after that managed to get into fastboot mode once, so I took the chance and opened the bootloader again via fastboot, to be able to flash stock recovery.
But now I am stuck with the "Your device has been unlocked and can't be trusted. Your device is booting now..." screen, and it always boots immediately into that. No chance to get into fastboot/bootloader mode not by pressing Vol- and Power, not by holding down V- and connecting to USB.
ALL I need, is to get into fastboot once more to be able to flash boot-partition.
Any advice highly appreciated.
Thanks, Paco

[SOLVED] Can't get p9lite into fastboot/bootloader mode anymore
pacocalvari said:
Hi everone,
I did a rollback via dload, but messed up an later update. Now I can't get into fastboot mode anymore.
Had a bootloop yesterday and couldn't power down the device, everytime it booted immediately again and stuck with the Huawei logo.
I let the battery drain over night and after that managed to get into fastboot mode once, so I took the chance and opened the bootloader again via fastboot, to be able to flash stock recovery.
But now I am stuck with the "Your device has been unlocked and can't be trusted. Your device is booting now..." screen, and it always boots immediately into that. No chance to get into fastboot/bootloader mode not by pressing Vol- and Power, not by holding down V- and connecting to USB.
ALL I need, is to get into fastboot once more to be able to flash boot-partition.
Any advice highly appreciated.
Thanks, Paco
Click to expand...
Click to collapse
OK, solved. I really had to let the battery drain again completely over night. After that, holding down Vol- and plugging in USB worked to get into fastboot.
I miss the times where you could put out the battery...

Please help - Stuck on Boot loader warning screen.

Hello all,
Earlier i had ran the battery down to 0% and plugged my phone in to charge. after 10 mins i came back to the phone and I could see the bootloader warning screen;
The Boot loader is unlocked and software integrity cannot be guaranteed..... etc...
No button on the device seems to do anything and device isnt showing under ADB or Fastboot.
Any ideas other than let the device run out of battery?
Rom: OOS
Recovery: TWRP
Kernel: Stock
Root: Magisk

Yeah, that happened to me too, that's why I don't charge the phone turned off
Press the power + vol up buttons till the screen turns off once it does stop pressing them and it should boot up

It's a Magisk bug for what it's worth. Unplug the phone, hold all three buttons and it will vibrate and reboot after a few seconds. Once you see the boot logo, plug it back in and it should finish booting and also be charging.

This happened to me too. I was really worried as I waited over 20 hours for it to drain the battery. All i had to do was to hold volume Up+power button for about 15 seconds.

romracer said:
It's a Magisk bug for what it's worth. ...
Click to expand...
Click to collapse
source, mate?
@mods, perhaps you can merge this thread with https://forum.xda-developers.com/oneplus-6t/help/oneplus-6t-stucked-unlocked-bootloader-t3874178

Guys, do you have any problem using the hw buttons to boot in recovery/bootloader? I tried everytime, but the only way I could boot in there was with the advanced reboot option.

To ROMRACER: Thank you. You helped very much. It works.

not a magisk bug. answered here

OP6T
I can turn off the phone using the power button and volume up, but after rebooting again, still can't get passed the boot loader warning... any solutions?

I was in this position today.
I'd kept the charger attached whilst going into TWRP to do a NANDROID backup, when I rebooted was stuck at he bootloader warning. None of the suggested solutions above worked for me having tried them several times, each time I got the phone to reboot was again stuck at the warning.
I could get into fastboot, (but from there any method to boot came to the warning again), so connected to the pc and reflashed TWRP image and could then boot into recovery, from there reflashed Magisk and was finally able reboot normally.
Hope this might help someone else.

I think I bricked my P10 Lite. Need help please

I was messing with my P10 Lite and I accidentally wiped the Vendor partition (not sure if I wiped anything else) with TWRP. After the phone rebooted it said something about a critical error during boot and went into erecovery. It gave me two options( I don't remember the second one) and I chose factory reset. It started doing it's thing but I guess something went wrong because it wasn't able to boot and it started to bootloop.
I managed to get into fastboot once. The bootloader and FRP should be unlocked but I am not sure as I think I semi accidentally used the command to relock the bootloader in the hopes of it doing the automatic low level factory reset. After that restart, the phone wanted to boot up but after the Huawei logo it went into the EMUI logo which I've shown in the pictures. Now I can't use any button combination and can't enter any menu. I also can't shut down the phone as it bootloops into the EMUI logo after I press the power button. I opened the phone and turned it off by detaching the battery cable but after holding the power down key and plugging the usb cable into the phone it still boots into the EMUI logo right after the Huawei logo.
I guess not being able to enter fastboot is the major issue and after hours of googling I am yet to find a solution.
Edit: I am a newb!
Please help!

Why did you delete the vendor partition, you could try plugging the phone into your computer and checking if you can do anything with fastboot while it's showing emui logo?

Alaunus said:
I was messing with my P10 Lite and I accidentally wiped the Vendor partition (not sure if I wiped anything else) with TWRP. After the phone rebooted it said something about a critical error during boot and went into erecovery. It gave me two options( I don't remember the second one) and I chose factory reset. It started doing it's thing but I guess something went wrong because it wasn't able to boot and it started to bootloop.
I managed to get into fastboot once. The bootloader and FRP should be unlocked but I am not sure as I think I semi accidentally used the command to relock the bootloader in the hopes of it doing the automatic low level factory reset. After that restart, the phone wanted to boot up but after the Huawei logo it went into the EMUI logo which I've shown in the pictures. Now I can't use any button combination and can't enter any menu. I also can't shut down the phone as it bootloops into the EMUI logo after I press the power button. I opened the phone and turned it off by detaching the battery cable but after holding the power down key and plugging the usb cable into the phone it still boots into the EMUI logo right after the Huawei logo.
I guess not being able to enter fastboot is the major issue and after hours of googling I am yet to find a solution.
Edit: I am a newb!
Please help!
Click to expand...
Click to collapse
Dload method. Put sd card in other phone or some card readers and put appropriate files.

nemanjsb said:
Dload method. Put sd card in other phone or some card readers and put appropriate files.
Click to expand...
Click to collapse
I've already tried that. I've placed the appropriate files into my SDcard but I can't use any button commands including volume up+down+power. When I press them my device just boots into the EMUI logo and nothing happens.
Edit: It boots into the EMUI logo even if I only press the power button. Pressing volume down + usb also boots me into the EMUI logo

DaarkZek said:
Why did you delete the vendor partition, you could try plugging the phone into your computer and checking if you can do anything with fastboot while it's showing emui logo?
Click to expand...
Click to collapse
I measured once and not trice before cutting... I was also not paying enough attention/in a hurry...

Power OFF the phone.
Press and Hold VOL Down and connect the phone to PC via USB cable. The phone should boot into Bootloader (fastboot mode). Does this method work?
or try this:
Press and Hold VOL Up and connect the phone to PC via USB cable. The phone should boot into eRecovey mode and then then select "Download latest stock rom and install".

Aalesund said:
Power OFF the phone.
Press and Hold VOL Down and connect the phone to PC via USB cable. The phone should boot into Bootloader (fastboot mode). Does this method work?
or try this:
Press and Hold VOL Up and connect the phone to PC via USB cable. The phone should boot into eRecovey mode and then then select "Download latest stock rom and install".
Click to expand...
Click to collapse
Ok, it seems like not all is lost about my phone. I managed to get into fastboot. In my situation, pressing volume down + usb cable while the battery was plugged into the phone did not work. That was before I opened up my phone's case and disconnected the battery cable.
As I mentioned before, I had opened my phone and disconnected the battery cable because that was the only way to shut it off.
What I did after I disconnected the battery cable was the following:
1 - Hold volume down and don't release it
2 - Plug in USB
3 - Plug in the battery cable into the phone's mobo.
That booted me into fastboot. Right now, the phone says my bootloader in unlocked and my FRP is locked. What would be the best way to flash the new stock OS on my phone?

Aalesund said:
Power OFF the phone.
Press and Hold VOL Down and connect the phone to PC via USB cable. The phone should boot into Bootloader (fastboot mode). Does this method work?
or try this:
Press and Hold VOL Up and connect the phone to PC via USB cable. The phone should boot into eRecovey mode and then then select "Download latest stock rom and install".
Click to expand...
Click to collapse
I have downloaded THIS and THIS for the new OS but by talking with Alexxxx1 in THIS discussion I learnt that Huawei has implemented a security patch in their latest update, which I've most likely installed, that prevents you from rolling back your OS version. That means I need to install the .386 version, which should be the last if I am not wrong, instead of the .378 correct? Though I heavily dislike patches like this I guess I can't do anything about that...