[Q] Phone Bricked, is there any way to unlock bootloader by fastboot? - General Questions and Answers

Hi,
My phone is bricked and it won't come off the splash screen. I can't run into recovery mode, I can only run fastboot commands. Whenever I try to do something (install CWM, fastboot recovery) I get the message "Command not allowed" and I think it's because the bootloader is not unlocked.
The only tutorials I find to unlock are using abd commands, but since the phone is bricked I can only run fastboot ones.
Is there any way yo unlock it by using fastboot commands?
Thanks

Found a solution
Skylip said:
Hi,
My phone is bricked and it won't come off the splash screen. I can't run into recovery mode, I can only run fastboot commands. Whenever I try to do something (install CWM, fastboot recovery) I get the message "Command not allowed" and I think it's because the bootloader is not unlocked.
The only tutorials I find to unlock are using abd commands, but since the phone is bricked I can only run fastboot ones.
Is there any way yo unlock it by using fastboot commands?
Thanks
Click to expand...
Click to collapse
For those who may have the same problem, this solution worked for me: modaco.com/topic/355873-guidepossibly-a-new-rom-downgrade-upgrade-tool-found/.
Thanks

Skylip said:
For those who may have the same problem, this solution worked for me: modaco.com/topic/355873-guidepossibly-a-new-rom-downgrade-upgrade-tool-found/.
Thanks
Click to expand...
Click to collapse
Hi.
But a question that I think will be important... What have you done to get the bricked phone? Because if it was for a bad upgrade... there are many ways to correct it. But it is important to know how it has been.

Related

Command "Fastboot OEM unlock" doesn't work

My phone "Oneplus One" is soft bricked. Currently there is no OS installed nor recovery. But, Fastboot is working.
So, I started to follow a guide to install CM 11s OS through fastboot. But, it gave an error "Failed: Remote- Device not unlocked cannot flash or erase".
So now its time to unlock OEM. SO, I used the command "Fastboot OEM unlock" Command got executed in 0.006sec and phone rebooted. Again tried to flash OS but it gives same error i.e. "Failed: Remote- Device not unlocked cannot flash or erase". Only if I could unlock OEM could flash the OS and be done with it. Any help would be appreciated.
leysaley said:
My phone "Oneplus One" is soft bricked. Currently there is no OS installed nor recovery. But, Fastboot is working.
So, I started to follow a guide to install CM 11s OS through fastboot. But, it gave an error "Failed: Remote- Device not unlocked cannot flash or erase".
So now its time to unlock OEM. SO, I used the command "Fastboot OEM unlock" Command got executed in 0.006sec and phone rebooted. Again tried to flash OS but it gives same error i.e. "Failed: Remote- Device not unlocked cannot flash or erase". Only if I could unlock OEM could flash the OS and be done with it. Any help would be appreciated.
Click to expand...
Click to collapse
I had the same problem as you and I resolved it using this
http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912
http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912
Not sure if that will help you at all but it's worth a shot. Maybe you could flash an already modified aboot from fastboot.
sayeef said:
I had the same problem as you and I resolved it using this
http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912
Click to expand...
Click to collapse
I don't know how to thank you. I send you warm regards from India. Love you dude.
leysaley said:
I don't know how to thank you. I send you warm regards from India. Love you dude.
Click to expand...
Click to collapse
lol np
I was panicking as well when it happened to me
sayeef said:
I had the same problem as you and I resolved it using this
http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912
Click to expand...
Click to collapse
I will bolster this claim as I had THE SAME EXACT PROBLEM and this tampered-fix, did it for me. Works wonders!

[Q] "Fastboot oem unlock" Does nothing.

I have owned this phone for about 5-6 months now and have never unlocked the bootloader. I know I probably should of done that when I got it but for some reason I have been able to flash TWRP, Root the phone, and install custom roms without wiping the phone no problem. I am currently on Paranoid Android 4.6 Beta 6 and TWRP 2.8 but I wanted to go back to CM11S, and I thought maybe it's time that I unlock the bootloader. I have installed the correct drivers and when I type "fastboot oem unlock", the Command Prompt said "finished in 0.06 seconds", I then rebooted and nothing happens. I also tried a Toolkit to unlock it but that didn't do anything either. Can anyone help? I don't want to Hard Brick my phone.
Thanks
It sounds like your bootloader is already unlocked.
Try running
fastboot oem device-info
to see what it says. Post your results here and somebody should be able to help you.
The right command is:
Code:
fastboot oem device-info
Transmitted via Bacon
check this
Matt7262 said:
I have owned this phone for about 5-6 months now and have never unlocked the bootloader. I know I probably should of done that when I got it but for some reason I have been able to flash TWRP, Root the phone, and install custom roms without wiping the phone no problem. I am currently on Paranoid Android 4.6 Beta 6 and TWRP 2.8 but I wanted to go back to CM11S, and I thought maybe it's time that I unlock the bootloader. I have installed the correct drivers and when I type "fastboot oem unlock", the Command Prompt said "finished in 0.06 seconds", I then rebooted and nothing happens. I also tried a Toolkit to unlock it but that didn't do anything either. Can anyone help? I don't want to Hard Brick my phone.
Thanks
Click to expand...
Click to collapse
hello ..
i have oneplus 64 that the Tampered was true and unlock false.
i have original recovery . that i cant run not signed zip
i tried everything even install coloros ( and its failed)
finaly after alot of hours the soultion very simple
1.install throw adb sideload the signed rom ... https://www.androidfilehost.com/?fid=95747613655046106
2. its take you to factory rom
3. after that u can unlock your oneplus with fastboot oem unlock
thanks
timmaaa said:
The right command is:
Code:
fastboot oem device-info
Click to expand...
Click to collapse
Thanks, edited to fix.

I dun goofed, messed up my OPO.

Okay so, first things first:
I can boot into both Recovery AND Fastboot
ADB Sideload does NOT work in my TWRP
Tampering bit is true and bootloader unlocked is false
My problem now is;
I need to unlock my bootloader because right now, my phone has no OS. I can't unlock it though because neither fastboot oem unlock works nor through the OPO Toolbox/Toolkit.
I can't flash anything to it right now and I need to find a way to unlock my bootloader, whenever I try to unlock it, it reboots to TWRP.
Please help. <3
adb push yourrom.zip /sdcard
Then just pick the ROM you just copied onto your phone storage using the above command in TWRP and you should be fine.
If that doesn't do the job then you can always use the brick recovery download tool.
Karthaan said:
Okay so, first things first:
I can boot into both Recovery AND Fastboot
ADB Sideload does NOT work in my TWRP
Tampering bit is true and bootloader unlocked is false
My problem now is;
I need to unlock my bootloader because right now, my phone has no OS. I can't unlock it though because neither fastboot oem unlock works nor through the OPO Toolbox/Toolkit.
I can't flash anything to it right now and I need to find a way to unlock my bootloader, whenever I try to unlock it, it reboots to TWRP.
Please help. <3
Click to expand...
Click to collapse
Did you try flashing the OPO factory image and then start from scratch?

My PIxel stuck on google Screen. Help :(

I kept my phone on charge for a few mins and when I came back to unplug, it was stuck on google screen. tried turning off the device or restarting it but nothing works. The phone was extremely hot. My phone is completely factory stock. the bootloader is locked too. how to recover it now ? please help.
i tried entering recovery mode but as soon as i select recovery it gets back to google logo screen again.
right now i have kept the phone in freezer now.
my bootloader is locked .. can i still unlock it and flash factory image ?
help ?
not a single reply ? bump...
Are you able to communicate with the device using fastboot?
Try flashing the stock images via fastboot
You won't need an unlocked bootloader for this
post-mortem said:
Are you able to communicate with the device using fastboot?
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yes im able to communicate with the device through fastboot. but my bootloader is locked.
wahur1 said:
yes im able to communicate with the device through fastboot. but my bootloader is locked.
Click to expand...
Click to collapse
Try the instructions at the top of the page here https://developers.google.com/android/images
It may work without unlocking the bootloader.
post-mortem said:
Try the instructions at the top of the page here https://developers.google.com/android/images
It may work without unlocking the bootloader.
Click to expand...
Click to collapse
whatever command i use it says OEM unlock is not allowed.
Just throwing out ideas that you may have already tried. If I understand right you cannot get into recovery which eliminates trying to sideload the stock image. Your bootloader is locked and it will not let you unlock so booting into TWRP is out of the question. Are you just wanting your phone operational again? Have you tried wiping/factory resetting with fastboot commands? i.e. fastboot erase userdata or fastboot format userdata.
wahur1 said:
whatever command i use it says OEM unlock is not allowed.
Click to expand...
Click to collapse
Have you tried flashing without unlocking the bootloader?
post-mortem said:
Have you tried flashing without unlocking the bootloader?
Click to expand...
Click to collapse
yes i have tried flashing by giving the fastboot command "flash-all.bat" it starts flashing and it stops in the initial stage by giving error " restarting bootloader" then I get 2nd error " bootloader locked" and process repeats again
toasterboy1 said:
Just throwing out ideas that you may have already tried. If I understand right you cannot get into recovery which eliminates trying to sideload the stock image. Your bootloader is locked and it will not let you unlock so booting into TWRP is out of the question. Are you just wanting your phone operational again? Have you tried wiping/factory resetting with fastboot commands? i.e. fastboot erase userdata or fastboot format userdata.
Click to expand...
Click to collapse
both command not working .. same bootloader locked message.
error message " Please unlock the device to activate this command"
anyone else can help ?
I would contact Google customer support. Even though my phone was out of warranty and I was not the original buyer (bought in eBay), they were willing to make a one-time exception for an RMA. I didn't use it because my phone is rooted and I was afraid of being charged for any repairs. As long as your phone is stock and unrooted, you have a chance. Just say that you think you have a hardware failure and while you understand that they are in no obligation to help, you would appreciate anything they can do.
Sent from my Pixel XL using Tapatalk

[UNTESTED] Bootloader Unlock On Nokia 5.1 Plus

Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
any hero? (I'm afraid of running out of phone)
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
Hey don't post guides for other if you don't know what it means, You will get other people phones bricked.
FYI Nokia phones requires permission to unlock bootloader.
adb oem unlock doesn't work now a days for most of the phones as you know many companies has made rooting and changing roms difficult. (excluding OnePlus and Pixel).
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
For me it gave an error (FAILED (remote: unknown command)), where
Code:
fastboot flashing unlock
gave me an error on the device asking me if I wanted to unlock flashing or to cancel. I don't know if this helps anyone anything but it seems to have worked because if I run
Code:
fastboot flashing get_unlock_ability
I get the message (bootloader) unlock_ability = 1
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
No , you cant unlock the bootloader by this way for this device
Nokia 5.1 plus bootloader unlock use mtk universal V5 tool it's easy to use
Macc40 said:
Nokia 5.1 plus bootloader unlock use mtk universal V5 tool it's easy to use
Click to expand...
Click to collapse
Sure it will work with subject device?

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