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How to unlock bootloader and install best ROM?

Hi there, been looking around but i find some old posts, wanted to use the safest way possible, i just bought a Huawei P9 and would like to know wich ROM is the best to use and how can i safely unlock my bootloader?
Thank you in advance.

already tried this :
http://forum.xda-developers.com/p9/how-to/how-to-safely-unlock-bootloader-p9-t3369499
but dc unlocked won't detect my phone, installed Hisuit for drivers, all good, but dc won't detect it, and the method via browser says i am from europe.

hfmls said:
already tried this :
http://forum.xda-developers.com/p9/how-to/how-to-safely-unlock-bootloader-p9-t3369499
but dc unlocked won't detect my phone, installed Hisuit for drivers, all good, but dc won't detect it, and the method via browser says i am from europe.
Click to expand...
Click to collapse
http://www.ministryofsolutions.com/p/huawei-bootloader-unlock.html
best method and cheapest to unlock bootloader,only send your phone information,and you will get your code after 1 day

already paid for dc unlocked, but it won't detect my phone :S

hfmls said:
already paid for dc unlocked, but it won't detect my phone :S
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Click to collapse
me also,so i follow the link above

spring80 said:
me also,so i follow the link above
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Click to collapse
damn, i don't understand, maybe it's because i have windows 10? i don't know.
i just activated OEM, debug, programmer mode, installed hisuite,and nothing :|
in fastboot dc unlockder detects some info, but not when smartphone is booted into android

ok i got it!
we have to go into manufacture mode!
https://www.youtube.com/watch?annot...&feature=iv&src_vid=U4tyT-noOaA&v=Lgph755EbKE

How to Relock bootloader

Hello all.
I attempted to flash a ROM a while back and failed miserably. All I managed to do in the end was unlock the bootloader. I would like to change this, and set things back to they way they were; locked bootloader.
Is there anyway to achieve this? I would like to be able to use apps like Uber that won't work with an unlocked bootloader.
Any and all help is greatly appreciated.

cr33p3r1n1134 said:
Hello all.
I attempted to flash a ROM a while back and failed miserably. All I managed to do in the end was unlock the bootloader. I would like to change this, and set things back to they way they were; locked bootloader.
Is there anyway to achieve this? I would like to be able to use apps like Uber that won't work with an unlocked bootloader.
Any and all help is greatly appreciated.
Click to expand...
Click to collapse
Hello I think this could help you
https://youtu.be/8OywEYZ2cbw
This is a video about how to rebrand your mate 9
Now it in the steps it says that after you use the options 2 to rebrand it relock your bootloader, I don't know what mate you have but since you probably installed a custom recovery it is why you can't relock with the command, so my suggestion is this download the WHOTA update and also install the the software finder via Google Play. With it look for your specific model and copy the links to download the files for your specific model in your PC, Also do a Backup of your Oeminfo via the TWRP since it will be the only file you won't find, probably (if it happens to be the MHA-L09 C605 send it to me I need it for my phone I made the mistake of not backing up my Oeminfo).
If you download the files and follow the instructions of the video you will be able to relock your bootloader. But watch it 3 times and also download all the files and make sure to back up everything in your PC if something goes wrong.
Sent from my MHA-L09 using Tapatalk

just flash your oeminfo.bin file again and your bootloader will be locked.. make sure its for your model!

gremy1987 said:
Hello I think this could help you
https://youtu.be/8OywEYZ2cbw
This is a video about how to rebrand your mate 9
Now it in the steps it says that after you use the options 2 to rebrand it relock your bootloader, I don't know what mate you have but since you probably installed a custom recovery it is why you can't relock with the command, so my suggestion is this download the WHOTA update and also install the the software finder via Google Play. With it look for your specific model and copy the links to download the files for your specific model in your PC, Also do a Backup of your Oeminfo via the TWRP since it will be the only file you won't find, probably (if it happens to be the MHA-L09 C605 send it to me I need it for my phone I made the mistake of not backing up my Oeminfo).
If you download the files and follow the instructions of the video you will be able to relock your bootloader. But watch it 3 times and also download all the files and make sure to back up everything in your PC if something goes wrong.
Sent from my MHA-L09 using Tapatalk
Click to expand...
Click to collapse
redhotneo said:
just flash your oeminfo.bin file again and your bootloader will be locked.. make sure its for your model!
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Click to collapse
Thanks guys. I've found a fairly simple solution.
This is the solution that worked for me.
1. Type "fastboot oem relock (your phone's unlock code)" and select unlock or yes with volume buttons & power.
Hopefully this method will help others.

How we do now that there is no more huawei unlock website ? thank you

mrpurple66 said:
How we do now that there is no more huawei unlock website ? thank you
Click to expand...
Click to collapse
hi did you managed to find a way to "unlock" the bootloader w/o the codes?

Only possible with funky huawei an downgrade to android 7
Google for unlock funky huawei. But you have to pay money for this
Huawei stoped every possibilities so only with funky

virtuell_gitarrist said:
Only possible with funky huawei an downgrade to android 7
Google for unlock funky huawei. But you have to pay money for this
Huawei stoped every possibilities so only with funky
Click to expand...
Click to collapse
Hcu-client (A tool by DC unlocker) worked fine last I tested it, was on MHA-L29C432B373

Just flash ur oeminfo.bin file to re lock ur boot loader.. Its that easy. But u lose all ur files cos phone resets

failed (remote: check password failed!)

error code: failed (remote: check password failed!)
A boot loader unlock error occurs.
Is there a way to resolve the error code?
I got the code number but I can not get the boot loader unlocked.

Rommco05 said:
Have your phone FRP? Chines models dont have it. If yes is unlocked?
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china model(bkl-al20) changed the status to bkl-l09
oem is unlocked.
also checked the usb debugging mode.
The current ROM is not bkl-al20, but bkl-l09.

Rommco05 said:
U use Funky Huawei?
Click to expand...
Click to collapse
Not used.
I also do not know what it is.
The seller replaced the ROM.

Think the reason the bootloader unlock code does not recognize is probably because the device does not recognize it in adb mode or it recognizes the wrong number.
If the device is not recognized as adb mode, is the boot loader unlock code not recognized?
If there is a problem with device recognition, is there a way to recognize the device in adb mode?
If the bootloader unlock code is wrong, should we talk to @[email protected]_USA?

Rommco05 said:
Try install adb drivers phone must be recognised
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Click to collapse
In normal boot mode, the device is recognized. However, in adb mode, the device is not recognized.

Rommco05 said:
Must be in bootloader recognised. U tryted install adb drivers?
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Click to collapse
I installed some drivers but I can not recognize the device in cmd mode.

error code: failed (remote: check password failed!)
A boot loader unlock error occurs.
Is there a way to resolve the error code?
I got the code number but I can not get the boot loader unlocked.
china model(bkl-al20) changed the status to bkl-l09
oem is unlocked.
also checked the usb debugging mode.
The current ROM is not bkl-al20, but bkl-l09.
The seller replaced the ROM.
Think the reason the bootloader unlock code does not recognize is probably because the device does not recognize it in adb mode or it recognizes the wrong number.
If the device is not recognized as adb mode, is the boot loader unlock code not recognized?
If there is a problem with device recognition, is there a way to recognize the device in adb mode?
If the bootloader unlock code is wrong, should we talk to @[email protected]_USA?
In normal boot mode, the device is recognized. However, in adb mode, the device is not recognized.
I installed some drivers but I can not recognize the device in cmd mode.
There is no device manager error problem.
If there is a problem with device recognition in cmd mode, is there a way to recognize it?
If the unlock code number is different, can I get the correct unlock code number?
How do I get one?
Please refer to the photo.

Same Problem here,after a Factory Reset works the Unlock Procedure

Exact same problem post debranding. Any developer can help may be @LuK1337 @surdu_petru @OldDroid

Can you share me how to rebrand BKL-AL20 to BKL-L09 without Funky Huawei ?

richard_li said:
Can you share me how to rebrand BKL-AL20 to BKL-L09 without Funky Huawei ?
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Click to collapse
I can surely do. Guide will be live tomorrow but you may get issues with bootloader only. I am thinking of what inhave done wrong that may be cause for this. I think I know it but i can reverse that now. You want to debrand to Indian version or EU version

shashank1320 said:
I can surely do. Guide will be live tomorrow but you may get issues with bootloader only. I am thinking of what inhave done wrong that may be cause for this. I think I know it but i can reverse that now. You want to debrand to Indian version or EU version
Click to expand...
Click to collapse
please share to us your rebranding method. BTW , i am in chinese latest 190 version, i want to rebrand to india or asia version. thanks man!

richard_li said:
please share to us your rebranding method. BTW , i am in chinese latest 190 version, i want to rebrand to india or asia version. thanks man!
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Click to collapse
Can do to India as we don't have the oeminfo file for Asia version yet.

shashank1320 said:
Can do to India as we don't have the oeminfo file for Asia version yet.
Click to expand...
Click to collapse
OK, if have india version, please share with me by first . thanks in advance , man !

have you tried removing your phone password?

Pls tell me to update emui 8 on my phone

I don't know what to do update emui 8 because bootloader is lock and I can't unlock bootloader tell me please. ?

Now that bootloader unlock isn't supported by Huawei you can only rely on using some third-party services like DC Phoenix, the cost is something about 4€. Sadly if you don't have a code you need to get one in way to install EMUI 8.
What's your build number?

RedSkull23 said:
Now that bootloader unlock isn't supported by Huawei you can only rely on using some third-party services like DC Phoenix, the cost is something about 4€. Sadly if you don't have a code you need to get one in way to install EMUI 8.
What's your build number?
Click to expand...
Click to collapse
BLL-L22C636
This is my build number.

gim200959 said:
BLL-L22C636
This is my build number.
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Click to collapse
Ok, here's what you have to do: first of all, unlocking bootloader is mandatory in way to proceed to next steps.
Then, you have to debrand your device to the correct variant, BLN-L22C675XXXX, following this thread https://forum.xda-developers.com/honor-6x/how-to/guide-debranding-to-india-variant-bln-t3679402
And last, once debranded you can update to EMUI 8 following steps listed here https://forum.xda-developers.com/honor-6x/how-to/update-bln-l22c675-emui-5-x-x-to-emui-8-t3819317
Just pay a lot of attention and make things with calm, in way to avoid unpleasant issues. Good luck and happy flashing

RedSkull23 said:
Ok, here's what you have to do: first of all, unlocking bootloader is mandatory in way to proceed to next steps.
Then, you have to debrand your device to the correct variant, BLN-L22C675XXXX, following this thread https://forum.xda-developers.com/honor-6x/how-to/guide-debranding-to-india-variant-bln-t3679402
And last, once debranded you can update to EMUI 8 following steps listed here https://forum.xda-developers.com/honor-6x/how-to/update-bln-l22c675-emui-5-x-x-to-emui-8-t3819317
Just pay a lot of attention and make things with calm, in way to avoid unpleasant issues. Good luck and happy flashing
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Click to collapse
Thank you for your help^^:good:

gim200959 said:
Thank you for your help^^:good:
Click to expand...
Click to collapse
You're welcome :good:

Oneplus 7 pro bricked bootloader lock

Hi guys I have a OP 7 pro bricked (boot loop), I try everything to un bricked, that is why I ask for any help. I use msm tool and install several zips but when the tool finish it still have the same problem, I can access to the fastboot mode but my bootloader is locked, so I cannot try the fastboot method cause my pc won't recognize when I connect my phone in this mode (I think that's because I need to have enable usb debugging).

I've got bad news, if your bootloader is locked and MSM tool fails you will most likely have to send it in as it will no longer be easily fixable, I unfortunately had this same issue on my OnePlus 8 and learnt the hard way.

You said that you "cannot try the fastboot method" because your PC won't recognize your phone... did you install Oneplus fastboot drivers correctly? You should be able to access your phone in fastboot, even with bootloader locked.
Try with another PC too. Just my 2 cents, sorry if this doesn't help you...

lauchiebeans said:
I've got bad news, if your bootloader is locked and MSM tool fails you will most likely have to send it in as it will no longer be easily fixable, I unfortunately had this same issue on my OnePlus 8 and learnt the hard way.
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Click to collapse
Launchiebeans thanks for take your time to answer, where did you send it, did you repair yours

jonsat said:
You said that you "cannot try the fastboot method" because your PC won't recognize your phone... did you install Oneplus fastboot drivers correctly? You should be able to access your phone in fastboot, even with bootloader locked.
Try with another PC too. Just my 2 cents, sorry if this doesn't help you...
Click to expand...
Click to collapse
First thank you for your time.
I though that too, but i didn't do it , maybe is because I read that in order to use this method (fastboot), oem unlock and usb debugging have to be enable on my OP 7 PRO
Ps: today I'll try again whit another pc, maybe it works, I think the Qualcomm drivers, adb drivers and OP drivers are a nightmare, who knows how many I've been downloaded those in order to make everything right
Sorry for my English I'm from Costa Rica

Sounds like he is stuck o. The older firmware that don't recognize oem unlock command. Not doing the developer preview upgrade then Ota out to regular firmware. Kinda sounds like what I started out on this t mobile one

TheMadScientist said:
Sounds like he is stuck o. The older firmware that don't recognize oem unlock command. Not doing the developer preview upgrade then Ota out to regular firmware. Kinda sounds like what I started out on this t mobile one
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Click to collapse
Hi MadScientist do you hav the same prob? Didi you solved?. Like I said I think the fastboot method to unbrick doesn't work for me because we need to have oem unlock and usb debugging enable on the OP. I will use another pc to discard
Ps: don't know what you mean with "older firmware"
Since I don't remember what version of firmware I have I try the older 9.5.3 to 10... On oxigen. Even i read that someone resolve his problem installing the Chinese version (hidrogenOs) I don't remember the exact name

cirmendoza said:
Hi MadScientist do you hav the same prob? Didi you solved?. Like I said I think the fastboot method to unbrick doesn't work for me because we need to have oem unlock and usb debugging enable on the OP. I will use another pc to discard
Ps: don't know what you mean with "older firmware"
Since I don't remember what version of firmware I have I try the older 9.5.3 to 10... On oxigen. Even i read that someone resolve his problem installing the Chinese version (hidrogenOs) I don't remember the exact name
Click to expand...
Click to collapse
Nm I read your post wrong. I thought you just couldn't get oem unlock enabled

cirmendoza said:
Launchiebeans thanks for take your time to answer, where did you send it, did you repair yours
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Click to collapse
I Ended up sending it to OnePlus and the repair was free as it was a software issue.