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I have a stock 2012 Nexus 7 Wifi + 3G which (was) on 4.4.4. The power button does not work in the bootloader or when booted up, but I can use it to reset the phone and boot into the bootloader.
I had the bright idea of using the Wugs Toolkit to reflash the factory ROM to see if that would correct the problem. Unfortunately, the bootloader was still locked.... it formatted the partitions but then couldn't write anything back, so now it will only boot into the bootloader. I can't unlock the bootloader because you have to confirm you want to unlock it by pressing the power button, which doesn't work.
Is there any way I can unlock the bootloader without having to do that power button press to confirm it?
Thanks
Ian
How "lock" or "relock" my samsung SM-T510 bootloader?
im getting annoyed by the message when it boots
I would like to know how to do this as well after flashing stock firmware in Odin, the option to toggle off OEM unlocking is grayed out. Any help would be awesome!
dcillusions77 said:
I would like to know how to do this as well after flashing stock firmware in Odin, the option to toggle off OEM unlocking is grayed out. Any help would be awesome!
Click to expand...
Click to collapse
You can't choose the OEM lock until you re-lock the bootloader. You do that the same way you unlocked it. But be warned, it does a factory reset also, which means you have to go through the whole setup proceedure again. BTW, it is unlocking the bootloader that causes the message, not the OEM lock. Also, do you know that you don't have to wait for that message to disappear on it own. If you tap the power button when it appears, it goes away without the delay.
lewmur said:
You can't choose the OEM lock until you re-lock the bootloader. You do that the same way you unlocked it. But be warned, it does a factory reset also, which means you have to go through the whole setup proceedure again. BTW, it is unlocking the bootloader that causes the message, not the OEM lock. Also, do you know that you don't have to wait for that message to disappear on it own. If you tap the power button when it appears, it goes away without the delay.
Click to expand...
Click to collapse
The OEM lock is grayed out. I have factory reset everything. Through Odin and device. I just want the bootloader locked again and reversing this procedure does not work. Not worried about erasing the device I've already downloaded the 2 to 3 hour 2.3GB file I pushed through Odin
dcillusions77 said:
The OEM lock is grayed out. I have factory reset everything. Through Odin and device. I just want the bootloader locked again and reversing this procedure does not work. Not worried about erasing the device I've already downloaded the 2 to 3 hour 2.3GB file I pushed through Odin
Click to expand...
Click to collapse
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get rid of the message.
Edit: And "reversing the procedure" does work if you do it right. It is the ONLY way to relock the bootloader and I have done it. So I know it works.
reedit: OK, I just did it again on my T510. Turn the tablet off. Plug the cable into the PC but NOT the tablet. Hold both the vol up and down buttons and then plugin the cable from the PC. When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!
lewmur said:
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get red of the message.
Click to expand...
Click to collapse
What proper buttons are you talking about? You mean in download/fastboot mode? I'll look at the da** thing again when I get home. Bout done with this samscra* sh**
dcillusions77 said:
What proper buttons are you talking about? You mean in download/fastboot mode? I'll look at the da** thing again when I get home. Bout done with this samscra* sh**
Click to expand...
Click to collapse
No I do NOT mean download/fastboot mode. Go back and research how to UNLOCK the bootloader. IT DOES NOT USE FASTBOOT. You DO NOT use fastboot to unlock Samsung devices. And "factory reset" via Odin is meaningless. You don't use Odin to unlock the bootloader either. BTW, Samsung and most other reputable tablet makers, intentionally make it hard to unlock their devices because it is a serious security risk if you don't know what you are doing. Do you know what you are doing?
lewmur said:
No I do NOT mean download/fastboot mode. Go back and research how to UNLOCK the bootloader. IT DOES NOT USE FASTBOOT. You DO NOT use fastboot to unlock Samsung devices. And "factory reset" via Odin is meaningless. You don't use Odin to unlock the bootloader either. BTW, Samsung and most other reputable tablet makers, intentionally make it hard to unlock their devices because it is a serious security risk if you don't know what you are doing. Do you know what you are doing?
Click to expand...
Click to collapse
I actually do know what I am doing as a matter of fact. I rooted all of our devices in this household including friends and family. Some of them are in my signature. You don't have to be a dbag about someone asking for help. Yes, I read your posts too, even after all your edits. I got it finally so I guess thanks for all of your generous replies to point me in the right direction. Have a nice day!
dcillusions77 said:
I actually do know what I am doing as a matter of fact. I rooted all of our devices in this household including friends and family. Some of them are in my signature. You don't have to be a dbag about someone asking for help. Yes, I read your posts too, even after all your edits. I got it finally so I guess thanks for all of your generous replies to point me in the right direction. Have a nice day!
Click to expand...
Click to collapse
I apologise for getting snappy but I was starting to get frustrated trying to point out that the OEM lock wasn't the problem and that the "buttons" did work.
Thanks Lewmur
Just wanted to pop on and say thanks lewmur, I was getting sick of not being able to update and singe I bought a Galaxy S9+ I cant root that, might as well keep them both stock and use "altered" apk install files. I was not sure if it was possible to relock the bootloader, now I know lol, so thanks.
I have a TAB S6 running Android 10. Bootloader is unlocked and OEM switch IS NOT grayed out. I went into DL mode and all I saw was the same thing as when I unlocked the TAB in the first place. Anything special I need to do to re-lock this baby.
jhill110 said:
I have a TAB S6 running Android 10. Bootloader is unlocked and OEM switch IS NOT grayed out. I went into DL mode and all I saw was the same thing as when I unlocked the TAB in the first place. Anything special I need to do to re-lock this baby.
Click to expand...
Click to collapse
relock and install full stock firmware
elliwigy said:
relock and install full stock firmware
Click to expand...
Click to collapse
Got the install firmware but How exactly do you re-lock the bootloader?
EDIT:
Got it!
Long Press!
lewmur said:
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get rid of the message.
Edit: And "reversing the procedure" does work if you do it right. It is the ONLY way to relock the bootloader and I have done it. So I know it works.
reedit: OK, I just did it again on my T510. Turn the tablet off. Plug the cable into the PC but NOT the tablet. Hold both the vol up and down buttons and then plugin the cable from the PC. When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!
Click to expand...
Click to collapse
...Like you said, your instructions do work! But i think folk are getting confused in your last sentence...
..."When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!"
with the term " 'hold' the vol up" you use - instead of 'Long Press' the middle Volume button option on the screen!
This method by Long Pressing Volume Up button will get you to the three options screen which asks if you want to lock your Tab...
klantee said:
Long Press!
...Like you said, your instructions do work! But i think folk are getting confused in your last sentence...
..."When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!"
with the term " 'hold' the vol up" you use - instead of 'Long Press' the middle Volume button option on the screen!
This method by Long Pressing Volume Up button will get you to the three options screen which asks if you want to lock your Tab...
Click to expand...
Click to collapse
thanks it work perfect
lewmur said:
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get rid of the message.
Edit: And "reversing the procedure" does work if you do it right. It is the ONLY way to relock the bootloader and I have done it. So I know it works.
reedit: OK, I just did it again on my T510. Turn the tablet off. Plug the cable into the PC but NOT the tablet. Hold both the vol up and down buttons and then plugin the cable from the PC. When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!
Click to expand...
Click to collapse
This works for SM-T870 as well FOLLOW BOLD TEXT of above, just did it. Stupid easy THANK YOU SO MUCH LewMur
I'm returning a my tablet which is still under warranty and looking for a way to re-lock the bootloader. All the tutos I find are for unlocking it. Does anyone now the procedure for re-locking it?
Thanks
korr.gm said:
I'm returning a my tablet which is still under warranty and looking for a way to re-lock the bootloader. All the tutos I find are for unlocking it. Does anyone now the procedure for re-locking it?
Thanks
Click to expand...
Click to collapse
That is because you re-lock it the same way you unlock it. Be sure to flash the latest stock ROM via Odin before re-locking it. Then, with the tablet off, and the USB cable plugged into the PC only, while holding both vol up and down and plug the cable into the tablet.. When the screen appears, release both buttons and then long press the vol up and you'll get the screen to re-lock.
Hi,
I have trouble unlocking my A40. It's 2nd piece I own and the problem is the same.
When I follow the steps from this forum;
Go to Developer Settings and enable "OEM Unlock" option
Power off the device and boot in download mode
In download mode, you will see the long press and volume up option to unlock the bootloader
Unlock the bootloader. That will wipe your device so be sure you made a backup of your data
After bootloader unlock, boot up the phone and make sure it is connected to the internet or it will trigger rmm prenormal
Setup the phone without google account and others
Reboot in download mode and flash the recovery and vbmeta images
Boot to TWRP
Format data in TWRP
Flash the Multidisabler zip
Now you can reboot
Click to expand...
Click to collapse
I'm stuck at the 3rd point.
I don't see ANY instruction about Volume UP + Power in download mode. Nor FASTBOOT see my device to run actions with it.
What I see is only "Volume down key + power key for more than 7 secs Cancel (restart phone).
And holding Vol UP + Power doesn't do anything.
How to make this work?
Thanks.
sjiamnocna said:
Hi,
I have trouble unlocking my A40. It's 2nd piece I own and the problem is the same.
When I follow the steps from this forum;
I'm stuck at the 3rd point.
I don't see ANY instruction about Volume UP + Power in download mode. Nor FASTBOOT see my device to run actions with it.
What I see is only "Volume down key + power key for more than 7 secs Cancel (restart phone).
And holding Vol UP + Power doesn't do anything.
How to make this work?
Thanks.
Click to expand...
Click to collapse
You did enable OEM Unlock, correct?
Turn the device completely off, without any cables connected. Keep a USB cable ready that's plugged into your PC.
With the device powered off, hold both Volume buttons, and plug in the USB cable connected to your PC. Do not press Power. You should see a prompt on either a green or blue screen; select the option for Device Unlock Mode.
Finally.
Thank you for making me try for another time
hey! i have an samsung galaxy j3-j330FN (2017) i couldnt find the 2017 j3 from the forums so i went here but anyway the issue is that the phone is not letting me use custom OS or recovery even tho oem unlocking is enabled it only lets me do it the first time after reflashing stock os and then after power off it says only official roms are allowed to be flashed what could this mean? this phone did work normally before evne with twrp and root but not now? as far as im aware this phone doesnt require the bootloader to be unlocked it just needs it to be allowed according to many tutorials on youtube
Win_7 said:
hey! i have an samsung galaxy j3-j330FN (2017) i couldnt find the 2017 j3 from the forums so i went here but anyway the issue is that the phone is not letting me use custom OS or recovery even tho oem unlocking is enabled it only lets me do it the first time after reflashing stock os and then after power off it says only official roms are allowed to be flashed what could this mean? this phone did work normally before evne with twrp and root but not now? as far as im aware this phone doesnt require the bootloader to be unlocked it just needs it to be allowed according to many tutorials on youtube
Click to expand...
Click to collapse
Your information is incorrect. The bootloader MUST be unlocked to flash custom firmware.
how do i unlock it? i forgot
Win_7 said:
how do i unlock it? i forgot
Click to expand...
Click to collapse
Read the guides
V0latyle said:
Read the guides
Click to expand...
Click to collapse
im sorry i couldnt find any including the unlocking process
Win_7 said:
im sorry i couldnt find any including the unlocking process
Click to expand...
Click to collapse
Really? Because this thread is 4th down from the top and contains the instructions you need to follow.
V0latyle said:
Really? Because this thread is 4th down from the top and contains the instructions you need to follow.
Click to expand...
Click to collapse
wrong model
V0latyle said:
Really? Because this thread is 4th down from the top and contains the instructions you need to follow.
Click to expand...
Click to collapse
1. Tick USB Debugging and OEM Unlock in Developer Mode (OEM has to be ticked to unlock the bootloader)
2. Connect to PC with USB Cable and open Odin
3. Power off and reboot into Download Mode (VOL.DOWN+HOME+POWER)
4. Add twrp.zip to AP tab
where is the unlock process????????????????????
Unplug phone and power off completely. Leave USB cable plugged into computer.
Wait at least 30 seconds
Hold both Volume buttons, do NOT press Power. Plug USB cable into phone.
Phone should start with a prompt. Follow the instructions on the screen for device unlock mode.
V0latyle said:
Unplug phone and power off completely. Leave USB cable plugged into computer.
Wait at least 30 seconds
Hold both Volume buttons, do NOT press Power. Plug USB cable into phone.
Phone should start with a prompt. Follow the instructions on the screen for device unlock mode.
Click to expand...
Click to collapse
it does nothing it just starts charging i did follow every step and i did try multiple times
Win_7 said:
it does nothing it just starts charging i did follow every step and i did try multiple times
Click to expand...
Click to collapse
Are you holding the Volume buttons when you plug the cable in?
V0latyle said:
Are you holding the Volume buttons when you plug the cable in?
Click to expand...
Click to collapse
yes
V0latyle said:
Unplug phone and power off completely. Leave USB cable plugged into computer.
Wait at least 30 seconds
Hold both Volume buttons, do NOT press Power. Plug USB cable into phone.
Phone should start with a prompt. Follow the instructions on the screen for device unlock mode.
Click to expand...
Click to collapse
if you mean the download mode where it says hold up to unlock then holding the 2 volume and plugging in is the thing u do in newer models this phone goes into download mode with vol down home and power but that option doesnt show up despite allowing it
Win_7 said:
if you mean the download mode where it says hold up to unlock then holding the 2 volume and plugging in is the thing u do in newer models this phone goes into download mode with vol down home and power but that option doesnt show up despite allowing it
Click to expand...
Click to collapse
Okay...Try holding both Volume buttons + Home, then plug the USB cable in. Again, the phone has to be shut off completely - I do not mean turning off the screen.
If this doesn't work, try holding both Volume buttons + Home, and while holding them press Power until the device turns on.
If that still doesn't work, I don't know what to tell you. If OEM Unlocking is enabled in Developer Options, then one of these key combos should bring up a warning screen that gives you the option to either go into download mode, unlock the device, or cancel.
V0latyle said:
Okay...Try holding both Volume buttons + Home, then plug the USB cable in. Again, the phone has to be shut off completely - I do not mean turning off the screen.
If this doesn't work, try holding both Volume buttons + Home, and while holding them press Power until the device turns on.
If that still doesn't work, I don't know what to tell you. If OEM Unlocking is enabled in Developer Options, then one of these key combos should bring up a warning screen that gives you the option to either go into download mode, unlock the device, or cancel.
Click to expand...
Click to collapse
none of that will work its vol down home and power no matter if the cable is plugged in or not but the option doesnt appear when it should
Win_7 said:
none of that will work its vol down home and power no matter if the cable is plugged in or not but the option doesnt appear when it should
Click to expand...
Click to collapse
At this point, the least you could do is at least try what I've suggested, regardless of whether you think it will work. You have nothing to lose. If you're unwilling to try suggestions, there's nothing more that I or anyone else can do for you.
its not my main phone i can try anything just make it work pls
V0latyle said:
At this point, the least you could do is at least try what I've suggested, regardless of whether you think it will work. You have nothing to lose. If you're unwilling to try suggestions, there's nothing more that I or anyone else can do for you.
Click to expand...
Click to collapse
Win_7 said:
its not my main phone i can try anything just make it work pls
Click to expand...
Click to collapse
Once again, here's what you should try. OEM Unlocking must be enabled in Developer Options. Do not factory reset. Let me know what results you get with each suggestion. You must start with the device powered completely off.
Hold both Volume buttons, plug in USB cable
Hold both Volume buttons + Home, plug in USB cable
Hold both Volume buttons, press Power
Hold both Volume buttons + Home, press Power
One of these should work.
none worked wth
V0latyle said:
Once again, here's what you should try. OEM Unlocking must be enabled in Developer Options. Do not factory reset. Let me know what results you get with each suggestion. You must start with the device powered completely off.
Hold both Volume buttons, plug in USB cable
Hold both Volume buttons + Home, plug in USB cable
Hold both Volume buttons, press Power
Hold both Volume buttons + Home, press Power
One of these should work.
Click to expand...
Click to collapse
Win_7 said:
none worked wth
Click to expand...
Click to collapse
Well, I don't have any more suggestions. Sorry I couldn't help.