Database Users

urgent help! cm recovery prevent me from unlocking bootloader!

Hi all!
I was on cm13 nightlies with cm recovery. when I was trying to flash oxygen recovery and oxygen os 3.0.1 I have locked bootloader by mistake with command fastboot oem lock and when I trying to unlock it again with command fastboot oem unlock I get the OKAY message but phone reboot to cm recovery and lock bootloader again!
Now I have no access to cm13 or any ROM just cm recovery and when I flash cm13 again through recovery nothing is done phone just booting to recovery
Please HELP.

Use Qualcomm restore method to get back to official ROM and recovery and then unlock again, it should work.

pitrus- said:
Use Qualcomm restore method to get back to official ROM and recovery and then unlock again, it should work.
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please explain the method or mention it here.
thanks for reply

It has been answered to many times already, just search and you'll find it in a second.

pitrus- said:
It has been answered to many times already, just search and you'll find it in a second.
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Thank you so much it's worked well

Please help me build twrp on oppo a37f

Oppo a37 does not have a fastboot option first i need help about enabling it. .... someone on forum said they removed it so is there any way to flash fastboot in oppo.. ?
I also need someone to help me build twrp for oppo a37 .......I'll provide all the necessary files.. ....
if someone already unlocked bootloader or has twrp for oppo a37(neo 9) then please reply here.. .
i have rooted it with latest kingroot app

Hey i rooted with kingroot and i ported twrp3.0.2 .But twrp touch not working. You can replace super su with twrp by twrp manager.

KoSett said:
Hey i rooted with kingroot and i ported twrp3.0.2 .But twrp touch not working. You can replace super su with twrp by twrp manager.
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if touchscreen is not working, unpack recovery and see if it has the modules inside, put them on Twrp if its not there, use stock boot.img and copy all the modules to twrp and it should have touchscreen working, its just a little help since i did this to my device and it started working.

Ruben Craveiro said:
if touchscreen is not working, unpack recovery and see if it has the modules inside, put them on Twrp if its not there, use stock boot.img and copy all the modules to twrp and it should have touchscreen working, its just a little help since i did this to my device and it started working.
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The twrp @KoSett ported when i flash it then it does not work .... phone reboot to normal .... recovery doesn't work at all.... can you tell me what is the problem here

hamzachaudhry36 said:
The twrp @KoSett ported when i flash it then it does not work .... phone reboot to normal .... recovery doesn't work at all.... can you tell me what is the problem here
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is bootloader unlocked?

Ruben Craveiro said:
is bootloader unlocked?
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no sir ... the thing is oppo a37f does not have fastboot binarys and also bootloader is locked .....

hamzachaudhry36 said:
no sir ... the thing is oppo a37f does not have fastboot binarys and also bootloader is locked .....
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all devices have fastboot.. reboot to bootloader and try to unlock bootloader after you on debug settings enable oem unlocking, on bootloader it acts like fastboot..

Ruben Craveiro said:
all devices have fastboot.. reboot to bootloader and try to unlock bootloader after you on debug settings enable oem unlocking, on bootloader it acts like fastboot..
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I tried oem unlocking.
when reboot to bootloader through flashify it reboots normally.
when using PC and adb the command to reboot to bootloader/fastboot boots device normally.
Please check this thread : http://forum.xda-developers.com/r7-plus/help/decision-oppo-bootloader-fastboot-t3348114

Ruben Craveiro said:
all devices have fastboot.. reboot to bootloader and try to unlock bootloader after you on debug settings enable oem unlocking, on bootloader it acts like fastboot..
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Also can you help me port Xiaomi Redmi 2 twrp for my Oppo a37f ? I will provide all the required files PLEASE!

hamzachaudhry36 said:
Also can you help me port Xiaomi Redmi 2 twrp for my Oppo a37f ? I will provide all the required files PLEASE!
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if bootloader is locked, the bootloader wont allow twrp to boot since its an unofficial unsigned image (not signed by the OEM)

Ruben Craveiro said:
if bootloader is locked, the bootloader wont allow twrp to boot since its an unofficial unsigned image (not signed by the OEM)
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Two Questions :
1)Is there a way out of this? (Can bootloader be unlocked somehow)
2)How did @KoSett succeeded in installing twrp in his oppo a37f with locked bootloader

hamzachaudhry36 said:
Two Questions :
1)Is there a way out of this? (Can bootloader be unlocked somehow)
2)How did @KoSett succeeded in installing twrp in his oppo a37f with locked bootloader
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1- i read something about a project from the thread link you showed me that it restores bootloader functions
2- he problably used that method or still uses old software versions where the patch to remove bootloader hasnt been made yet..

Ruben Craveiro said:
1- i read something about a project from the thread link you showed me that it restores bootloader functions
2- he problably used that method or still uses old software versions where the patch to remove bootloader hasnt been made yet..
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Its project spectrum rom instead of colorOS rom, but it is not compatible for oppo a37f
and i think he is using the same software but still i'll ask him for his version of OS.....
It's all my fault i didn't go through details of phone before buying....
So the final thing is i am stuck with a phone without fastboot and locked bootloader and can't install TWRP... It sucks!

hamzachaudhry36 said:
Its project spectrum rom instead of colorOS rom, but it is not compatible for oppo a37f
and i think he is using the same software but still i'll ask him for his version of OS.....
It's all my fault i didn't go through details of phone before buying....
So the final thing is i am stuck with a phone without fastboot and locked bootloader and can't install TWRP... It sucks!
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And is there a way that i can get his Binarys for my phone or his whole rom 'cuz on the internet there is only latest rom (afterall our phones are the same)

hamzachaudhry36 said:
And is there a way that i can get his Binarys for my phone or his whole rom 'cuz on the internet there is only latest rom (afterall our phones are the same)
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i dont think so.

Hey bro, We will get twrp officially at tomorrow.And Unlocked bootloader with miui8 rom.
Thank .I will made new thread wait 8hrs.Thz.

Whats the progress now?

KoSett said:
Hey bro, We will get twrp officially at tomorrow.And Unlocked bootloader with miui8 rom.
Thank .I will made new thread wait 8hrs.Thz.
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It's tomorrow now, how's progress going?

I have submitted my source code to twrp official.. They will send direct link to test build soon be ready.

Hey, Use oppo tool with unlock bootloader then flash recovery image.

Can't unlock bootloader, can't finish OS setup

So I upgraded to Nougat on my P9 Lite, unlocked boot loader, used twrp, flashed roms and everything went smooth. Saw a more up-to-date version with no bugs, so I had to downgrade to MM first.
I followed a guide, but I messed up somewhere and ended up having my bootloader locked, and I can't access the OS to enable developer options and oem unlock from settings. The reason why I can't access the OS is that I am stuck in the setup. I am stuck at the part where I have to sign in to my google account. It doesn't show a keyboard, only a microphone, and I can't use that for my password (it won't let me).
Any ideas?
TL;DR messed up during downgrading from Nougat to MM, now TWLR is gone, bootloader is locked and my main issue is that when I get to the google account sign in part during OS setup, there is no keyboard (I can only use dictation) so I can't sign in... So I'm stuck
Also, can I unlock bootloader without access to OS, without being able to navigate to settings, enable developer options and then oem unlock?

1. Stuck in OS setup? Signing in to Google? Hey, it's not obligatory, can't you just skip it?
2. Flashing ROMS locked your bootloader, it's normal, but I'm sure it didn't change the "oem unlock" setting you had surely enabled before. Go to fastboot mode and check Bootloader and FRP status on the bottom of the screen. If FRP is unlocked, you will be able to unlock bootloader again.
3. If you have your TWRP gone (flashed by stock ROM), flash the recovery partition manually - fastboot flash recovery TWRP.img (download from Meticulus Project site).

Jagiel88 said:
1. Stuck in OS setup? Signing in to Google? Hey, it's not obligatory, can't you just skip it?
2. Flashing ROMS locked your bootloader, it's normal, but I'm sure it didn't change the "oem unlock" setting you had surely enabled before. Go to fastboot mode and check Bootloader and FRP status on the bottom of the screen. If FRP is unlocked, you will be able to unlock bootloader again.
3. If you have your TWRP gone (flashed by stock ROM), flash the recovery partition manually - fastboot flash recovery TWRP.img (download from Meticulus Project site).
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It is obligatory, I couldn't skip it. I tried to use other methods of signing in, but then it asked me to reset password at the end.
Both Phone and FRP are locked
I think I have missed this, but I can't do it via fastboot because I keep getting "Command not allowed" whenever I try to unlock bootloader or do anything via fast boot.
Also, thank you so much for your time and input. It is much appreciated.

That's weird, I flashed my phone several times with different ROMS (not Nougat) and this setting (oem unlock / FRP unlocked) stayed enabled. Don't know where it sits then and how to change it without getting inside OS. But - what about TWRP? Oh right, you won't be able to flash it without unlocked bootloader... Oh, crap. I would try SRK Tool for Huawei to play with bootloader, it uses fastboot so shouldn't help, but maybe, just maybe? Maybe try flashing whole ROMs through dload folder on SD? Stock 120, 161, Nougat, I would try these. I hope there is some way to unlock FRP, probably it's possible in DC-unlocker (it's a paid software).

Jagiel88 said:
That's weird, I flashed my phone several times with different ROMS (not Nougat) and this setting (oem unlock / FRP unlocked) stayed enabled. Don't know where it sits then and how to change it without getting inside OS. But - what about TWRP? Oh right, you won't be able to flash it without unlocked bootloader... Oh, crap. I would try SRK Tool for Huawei to play with bootloader, it uses fastboot so shouldn't help, but maybe, just maybe? Maybe try flashing whole ROMs through dload folder on SD? Stock 120, 161, Nougat, I would try these. I hope there is some way to unlock FRP, probably it's possible in DC-unlocker (it's a paid software).
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Yes, it's very weird. I haven't done the process a lot. But I've flashed a couple of phones I had before, went smooth. Nothing major like this happened before.
I will consider the SRK Tool and I did not know about the DC-Unlocker tool, thank you for telling me about it.
Flashing whole roms through dload folder only works with Nougat for some reason, and I keep getting stuck in the signing in problem because of no keyboard, someone told me that's incomplete software, I'm hoping that's the case, any ideas where can I get it from?
Again thank you Jagiel88 for your time and advice xD

No problem, unfortunately I haven't tried Nougat yet, so search for help on down/upgrade Nougat beta <-> Marshmallow threads .

youssefSamir said:
Yes, it's very weird. I haven't done the process a lot. But I've flashed a couple of phones I had before, went smooth. Nothing major like this happened before.
I will consider the SRK Tool and I did not know about the DC-Unlocker tool, thank you for telling me about it.
Flashing whole roms through dload folder only works with Nougat for some reason, and I keep getting stuck in the signing in problem because of no keyboard, someone told me that's incomplete software, I'm hoping that's the case, any ideas where can I get it from?
Again thank you Jagiel88 for your time and advice xD
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Click to collapse
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?

islandman75 said:
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?
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There is 1 thing to unlock in settings . U have OEM lock

youssefSamir said:
Yes, it's very weird. I haven't done the process a lot. But I've flashed a couple of phones I had before, went smooth. Nothing major like this happened before.
I will consider the SRK Tool and I did not know about the DC-Unlocker tool, thank you for telling me about it.
Flashing whole roms through dload folder only works with Nougat for some reason, and I keep getting stuck in the signing in problem because of no keyboard, someone told me that's incomplete software, I'm hoping that's the case, any ideas where can I get it from?
Again thank you Jagiel88 for your time and advice xD
Click to expand...
Click to collapse
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?
---------- Post added at 04:19 PM ---------- Previous post was at 04:16 PM ----------
ScaleneVirus288 said:
There is 1 thing to unlock in settings . U have OEM lock
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Click to collapse
Can't access to any OS. I definetly know i had OEM unlocked, then after unlocking via fastboot, I wasn't able anymore to access the system.

islandman75 said:
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?
---------- Post added at 04:19 PM ---------- Previous post was at 04:16 PM ----------
Can't access to any OS. I definetly know i had OEM unlocked, then after unlocking via fastboot, I wasn't able anymore to access the system.
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Unlock bootloader, after that you able to flash rom.
You use this command?
fastboot oem unlock YOUR_OEM_CODE
If you tip:
fastboot devices
What's you see?

Bootloop and locked bootloader

Hello guys, I have a problem. I updated my Mi A1 and now I am in bootloop. I can't use MiFlash because I have locked bootloader.
I have tried fastboot oem edl, adb sideload in recovery but it didnt help. Any solution?

bad luck !! Test point method is the only way ? i faced the same situation ... please don't go to the service centre , they will tell you that the motherboard of your device needs a change .. and ask for a big amount of money if your phone is out of warranty ..!! search for the test point method here .. follow the video , and then follow the steps to go back to stock oreo from pie .. that's the only way ??

Same problem happened with me
My internal storage gets full and mobile automatically got switched off and bootloop
I tried to flash my self with adb command fastboot oem unlock
And successfully unlocked the bootloader & flashing process started but it keep flashing for long time whole night
So i decided to go near shop and gave him he tried with EDL test point and then phone goes in black screen He gave up :crying:
Now I'm thinking to go mi service centre but i get to know their ans is to change motherboard

PepeDaFrog said:
Hello guys, I have a problem. I updated my Mi A1 and now I am in bootloop. I can't use MiFlash because I have locked bootloader.
I have tried fastboot oem edl, adb sideload in recovery but it didnt help. Any solution?
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What did u update? Stock rom? When did you buy the device? Can you get into fastboot? Can you get into recovery?

i just flashed the device for my wife with stock fastboot and locked the bootloader and of course it ends in bootloop.
i removed sim and micro sd and it boots up.

cheffy11 said:
What did u update? Stock rom? When did you buy the device? Can you get into fastboot? Can you get into recovery?
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I have downgraded from pie to 8.1 oreo. Yes, i can get into fastboot and recovery but cant unlock the bootloader.

PepeDaFrog said:
I have downgraded from pie to 8.1 oreo. Yes, i can get into fastboot and recovery but cant unlock the bootloader.
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did you try fastboot oem unlock?

Gamestrav said:
did you try fastboot oem unlock?
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Yes, I have. I didnt work because I have OEM Unlock disabled and cant get into system.

PepeDaFrog said:
Yes, I have. I didnt work because I have OEM Unlock disabled and cant get into system.
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What recovery do u have?

PepeDaFrog said:
I have downgraded from pie to 8.1 oreo. Yes, i can get into fastboot and recovery but cant unlock the bootloader.
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You messed up because from stock Pie onwards, Xiaomi has implemented ARB which will bootloop your phone if you downgrade your rom.

barrack1 said:
You messed up because from stock Pie onwards, Xiaomi has implemented ARB which will bootloop your phone if you downgrade your rom.
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Hi! Does testpoint method works here?

I'll try with a home made EDL cable, if this does not work I'll have to drive to the office for tools and try the test point. I'll update, but if anyone knows if this or that works and see this post on time, let me know!

UPDATE:
- EDL cable didn't work.
- Test point method worked fine, I thought that opening this phone would be harder, search for dissasembly tutorials on youtube and for test point method, the brick got back to life and it's fully working!

x727 stock .21. How to install TWRP?

Factory default. Want to install Lineage 16 (pie). Followed developer's steps but can't install TWRP because when I get into fastboot mode (Power & Vol-). astboot console doesn't see the device. Found some convoluted way to do it by flashing a chinese rom and so on. Sounds too complex. Is that the only way of getting fastboot to work so I can install TWRP? I was hoping I could install TWRP and make a ROM backup before going any further. Thoughts?

Used aboot to bypass the unlockable bootloader. Bootloader is now unlocked but when I boot into TWRP (3.3.1) I get a swipe to right but I can't swipe. I mean I swipe but nothing happens. Seems like it doesn't accept screen touch or it doesn't process it. Any ideas on what to do next?

Tried multiple times and it finally worked.

nwaves said:
Tried multiple times and it finally worked.
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Sorry I don't use the X727 much anymore and didn't see your post. I am glad that you figured it out.
I will leave the instructions link below for the next person who has the same question.
https://forum.xda-developers.com/showpost.php?p=75009966