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Stuck On NRD90M test keys Help

Hey guys ive been stuck on NRD90M test keys for a while i have a nxt-l29 i installed nougat manually via twrp and the build number was NRD90M ive tried dload for several firmwares but all fail at 5% the roll back packages wont work either if anyone can help i would appreciate " bluetooth doesnt work and other major issues like app crashing and random freezing "
thanks in advance

nad.j said:
Hey guys ive been stuck on NRD90M test keys for a while i have a nxt-l29 i installed nougat manually via twrp and the build number was NRD90M ive tried dload for several firmwares but all fail at 5% the roll back packages wont work either if anyone can help i would appreciate " bluetooth doesnt work and other major issues like app crashing and random freezing "
thanks in advance
Click to expand...
Click to collapse
You need roll back package for L29. It will be around 90 mb. Put it in dload folder in sdcard. Then go to dialer and type *#*#2846579#*#* and then select software upgrade. It will reboot and will undergo that process or you can do that three finger process. Once it is done you can reboot back to your OS. This time put the B1xx or B3xx firmware in dload folder and try to do that again. It will go back.
In my case I went back from L29C432B560 to L29C432B180 doing this way. I am saying this from my personal experience. Key here is the rollback package from Huawei. It is there in one of the threads or you can google Huawei rollback package. Once you get that you resolve your issue.
Another thing I observed is locked bootloader.
Hope it works out for you.

Samavb said:
You need roll back package for L29. It will be around 90 mb. Put it in dload folder in sdcard. Then go to dialer and type *#*#2846579#*#* and then select software upgrade. It will reboot and will undergo that process or you can do that three finger process. Once it is done you can reboot back to your OS. This time put the B1xx or B3xx firmware in dload folder and try to do that again. It will go back.
In my case I went back from L29C432B560 to L29C432B180 doing this way. I am saying this from my personal experience. Key here is the rollback package from Huawei. It is there in one of the threads or you can google Huawei rollback package. Once you get that you resolve your issue.
Another thing I observed is locked bootloader.
Hope it works out for you.
Click to expand...
Click to collapse
hey man the *#*#2846579#*#* doesn't open anything on my phone and i tried dload to rollback using the volume up volume down and power and i get installation failed any other tips ? i downloaded alot of softwares nothing seems to work can u give the the specific software you used ?

nad.j said:
hey man the *#*#2846579#*#* doesn't open anything on my phone and i tried dload to rollback using the volume up volume down and power and i get installation failed any other tips ? i downloaded alot of softwares nothing seems to work can u give the the specific software you used ?
Click to expand...
Click to collapse
Which rollback are you using?

nad.j said:
hey man the *#*#2846579#*#* doesn't open anything on my phone and i tried dload to rollback using the volume up volume down and power and i get installation failed any other tips ? i downloaded alot of softwares nothing seems to work can u give the the specific software you used ?
Click to expand...
Click to collapse
Go to this link
http://m.huawei.com/mymobile/consumer/support/downloads/index.htm
And select the last one L29C900B500
That is the one I used.
If that code doesn't work then try the 3 finger rule
After you do with this rollback package
You will once again come back to nougat
You can check the build number if the process is successful.
Then you have to dload again to B180 or B3xx
Hope this works for you

Samavb said:
Go to this link
http://m.huawei.com/mymobile/consumer/support/downloads/index.htm
And select the last one L29C900B500
That is the one I used.
If that code doesn't work then try the 3 finger rule
After you do with this rollback package
You will once again come back to nougat
You can check the build number if the process is successful.
Then you have to dload again to B180 or B3xx
Hope this works for you
Click to expand...
Click to collapse
i downloaded the c900b500 and when i tried to install it gave me incompatible update... failed at 5%

dexz said:
Which rollback are you using?
Click to expand...
Click to collapse
i used the nxt l29c900b500 and failed at 5% every time it gives me incompatible update ...

nad.j said:
i used the nxt l29c900b500 and failed at 5% every time it gives me incompatible update ...
Click to expand...
Click to collapse
i get this

nad.j said:
i get this
Click to expand...
Click to collapse
What's your original region?
Did you try to install update_data.zip again via twrp?

dexz said:
What's your original region?
Did you try to install update_data.zip again via twrp?
Click to expand...
Click to collapse
its m.e.a
and tried to install using twrp but i get alot of failed nd unable to mount etc

nad.j said:
its m.e.a
and tried to install using twrp but i get alot of failed nd unable to mount etc
Click to expand...
Click to collapse
Which twrp version are you using?
Which partition was failed to mount?
Did you format data before install?

dexz said:
Which twrp version are you using?
Which partition was failed to mount?
Did you format data before install?
Click to expand...
Click to collapse
im using twrp 3.0.3-0 nd all format attempts fail

nad.j said:
im using twrp 3.0.3-0 nd all format attempts fail
Click to expand...
Click to collapse
Please use twrp 3.0.2 (Nougat) . Twrp 3.0.3 is broken.
You can get it from here. https://forum.xda-developers.com/ma...ot-nougat-mate-8-phh-superuser-t3570898/page2

dexz said:
Please use twrp 3.0.2 (Nougat) . Twrp 3.0.3 is broken.
You can get it from here. https://forum.xda-developers.com/ma...ot-nougat-mate-8-phh-superuser-t3570898/page2
Click to expand...
Click to collapse
should i format then install the rollback

nad.j said:
should i format then install the rollback
Click to expand...
Click to collapse
Don't think it will make any difference. You may try to install update.zip (EMUI 4.0) via twrp.
Just checking. Is your FRP unlocked?

dexz said:
Don't think it will make any difference. You may try to install update.zip (EMUI 4.0) via twrp.
Just checking. Is your FRP unlocked?
Click to expand...
Click to collapse
i formated the device and using twrp 3.0.2 tried to install rollback pack and the 6.0 software but i kept getting i kept getting this "could not find meta inf com google android update binary in the zip file huwaei " and then i tried to format system then flash 6.0 still got the same error and now i re installed the nrd90m since it got stuck on the huawei logo and still nothing is working out

nad.j said:
i formated the device and using twrp 3.0.2 tried to install rollback pack and the 6.0 software but i kept getting i kept getting this "could not find meta inf com google android update binary in the zip file huwaei " and then i tried to format system then flash 6.0 still got the same error and now i re installed the nrd90m since it got stuck on the huawei logo and still nothing is working out
Click to expand...
Click to collapse
Can you boot to bootloader and check if FRP is unlocked or lock?
Make sure your original firmware (6.0) is full not ota.

dexz said:
Can you boot to bootloader and check if FRP is unlocked or lock?
Make sure your original firmware (6.0) is full not ota.
Click to expand...
Click to collapse
whats frp ?

How to Rollback from Nougat to Stock - Mate 8 - L29
nad.j said:
i downloaded the c900b500 and when i tried to install it gave me incompatible update... failed at 5%
Click to expand...
Click to collapse
I had the same problems.
option 1
I downloaded stock B560 zip files
flashed it in TWRP
next I locked the bootloader
now the dload to rollback - worked. buildnumber - changed
then another dload to B180 to go back.
after that I did dload to B190
updated to B560 using system update. then I flashed kangvip B577 and its all good now.
my phone was debranded to L29c432 so I used these files.
you have to get the right set of files for your phone model especially stock firmware.
roll back package from here
http://m.huawei.com/mymobile/consumer/support/downloads/index.htm
locked bootloader and stock recovery did the trick for me.
hope it works out for you. :good:

nad.j said:
whats frp ?
Click to expand...
Click to collapse
You can change by switch off your phone then press volume down and plug in your usb cable. It will bring you to bootloader mode. From there it will tell you bootloader and FRP status

I think i bricked my mate 9 need help

Hello developers i need help !!!
I am having a serious issue with mate 9. I was going through this method
https://forum.xda-developers.com/mate-9/how-to/guide-rebrand-chinese-al00-mate9-to-t3554656
Unlocked bootloader , install twrp after that i replaced oem file as u have given in the international version
But now it is only showing fastboot ,download or the updating screen as it fails on 5%....
As i have tried many official roms after putting them in externalsd card/dload, but the procedure fails every time
Now i m stuck in bootloader, unlocking not working
Installing twrp not working
Please help
I was using aur rom
link https://forum.xda-developers.com/mat...5v1-0-t3575146
and before
I had a middle east version
MHA-L29C185b172

I got stuck following the same guide after replacing oeminfo to L29C636.
If you are able to get in TWRP i suggest restoring OEMinfo to original and start following this guide to rebrand.
@edit: Could you elaborate why bootloader unlock doesn't work?

Cant unlock bootloader
Bulrock said:
I got stuck following the same guide after replacing oeminfo to L29C636.
If you are able to get in TWRP i suggest restoring OEMinfo to original and start following this guide to rebrand.
@edit: Could you elaborate why bootloader unlock doesn't work?
Click to expand...
Click to collapse
Now i only want is to unlock bootloader for that i cant do that by any adb & fastboot softwares.
.tried lot of them but always : command not allowed:
My phone current status
Phone locked
Frp lock
Some how by force bootloader unlocking , after that there is nothing to worry about, but just bootloader unlocking.
Now i dont know what are settings for oem enabled or disabled, or the other developer settings.
Now i have given mate 9 to a famous repairing centre,
They told me that this is hardware issue and it would be around 300 us dollars worth repairing.
Now dont know what to do..
Please help developers...

JAZZYBUTT999 said:
Hello developers i need help !!!
I am having a serious issue with mate 9. I was going through this method
https://forum.xda-developers.com/mate-9/how-to/guide-rebrand-chinese-al00-mate9-to-t3554656
Unlocked bootloader , install twrp after that i replaced oem file as u have given in the international version
But now it is only showing fastboot ,download or the updating screen as it fails on 5%....
As i have tried many official roms after putting them in externalsd card/dload, but the procedure fails every time
Now i m stuck in bootloader, unlocking not working
Installing twrp not working
Please help
I was using aur rom
link https://forum.xda-developers.com/mat...5v1-0-t3575146
and before
I had a middle east version
MHA-L29C185b172
Click to expand...
Click to collapse
Since your frp is locked you won't be able to flash anything.
Did the OEMINFO restore successfully in twrp?
When you do dload, you are putting UPDATE.APP in /extsdcard/dload/?
And you are using https://drive.google.com/file/d/0B9GG_Oe0gQDyUWlCS3lTRm5IOUE/view (C636B136)?
Because no other firmware will work with dload (Except for AL00C00B115).

Dload MHA-L29C636B181
https://drive.google.com/drive/folders/0ByXR42Nu62ndNEdfSFQ1STdQM00

newyesor said:
Dload MHA-L29C636B181
https://drive.google.com/drive/folders/0ByXR42Nu62ndNEdfSFQ1STdQM00
Click to expand...
Click to collapse
B181 is not an offline firmware so it can't be used with Dload.
And that folder you linked is empty.
newyesor said:
So sorry,I have no check this link.
Update newlink dload
https://drive.google.com/uc?id=0B51CNA4cML2LZ0pjQi1TS04wWlU&export=download
Click to expand...
Click to collapse
That ones in the trash, apparently.

ante0 said:
B181 is not an offline firmware so it can't be used with Dload.
And that folder you linked is empty.
Click to expand...
Click to collapse
So sorry,I have no check this link.
Update newlink dload
https://drive.google.com/uc?id=0B51CNA4cML2LZ0pjQi1TS04wWlU&export=download

Thanks for the replying
Appreciate your replies
i will download firmware right now and will update you as soon as possible.
I had successfully replaced/restored oem files to the international version l29c636.
But after that every thing got stuck.
Once again thanks:good::good::good:

JAZZYBUTT999 said:
Appreciate your replies
i will download firmware right now and will update you as soon as possible.
I had successfully replaced/restored oem files to the international version l29c636.
But after that every thing got stuck.
Once again thanks:good::good::good:
Click to expand...
Click to collapse
Congrats! Please describe all the steps. Thanks!

Please update link
newyesor said:
So sorry,I have no check this link.
Update newlink dload
https://drive.google.com/uc?id=0B51CNA4cML2LZ0pjQi1TS04wWlU&export=download
Click to expand...
Click to collapse
Hi newyesor,
For some reason i got my device back to much late,
So now i want to flash c181 firmware,
Please update the link. It shows firmware in the bin.
Thanks...:good::good::good:

Dload c636B181
https://drive.google.com/uc?id=0B51CNA4cML2LZ0pjQi1TS04wWlU&export=download
https://drive.google.com/drive/mobile/folders/0ByXR42Nu62ndNEdfSFQ1STdQM00

newyesor said:
Dload c636B181
https://drive.google.com/uc?id=0B51CNA4cML2LZ0pjQi1TS04wWlU&export=download
https://drive.google.com/drive/mobile/folders/0ByXR42Nu62ndNEdfSFQ1STdQM00
Click to expand...
Click to collapse
Wow! It is OFFLINE_UPDATE. Where you got it? Do you have other offline updates? For C432, C567 ?

I am get file dload from technicial huawei.
I have not file dload for c432 or c567.
I am so sorry.

Not working
5[Strogino] said:
Wow! It is OFFLINE_UPDATE. Where you got it? Do you have other offline updates? For C432, C567 ?
Click to expand...
Click to collapse
Your provided firmware seems to be failing again and again
Tried many times but it fails after 5%
Help needed

JAZZYBUTT999 said:
Your provided firmware seems to be failing again and again
Tried many times but it fails after 5%
Help needed
Click to expand...
Click to collapse
It is not mine. But what is your current oeminfo? You need be on c636 to install this offline rom. Other customization are not compatible.

newyesor said:
Dload c636B181
https://drive.google.com/uc?id=0B51CNA4cML2LZ0pjQi1TS04wWlU&export=download
https://drive.google.com/drive/mobile/folders/0ByXR42Nu62ndNEdfSFQ1STdQM00
Click to expand...
Click to collapse
Do you have P10 offline firmware? It is VTR-L29C636 version.

How to flash via TWRP a stock ROM in my problematic phone

Hi everyone.
I am facing a LOT of troubles with my phone (as stated in this thread).
Anyway now I have again unlocked bootloader, installed TWRP 3.1.1, rooted but I have a strange ROM installed by a service tech shop after the phone became unusable.
The problem is that this ROM does not show an update option in settings so I am stuck at 1st march security patches.
Here attached my actual Build Prop file.
The ROM seems to be a BLN-L21C900B300 (never heard of this and not even found on Firmware Finder) and the fingerprints show a "test keys" rom:
device: HWBLN-H
Display: BLN-L21C900B300
Fingerprint: Huawei/generic_a15/generic_a15:7.0/NRD90M/jslave04010520/:user/test keys​
If I try to flash via TWRP a BLN-L21C432B360 (which was my previous stock ROM) it does not work and on TWRP appears the following:
......
write radio image
check_write_data_to_partition
write data error
E; unknown command (errno)
update_huawei_pkg_from_ota_zip: update package from zip failed
updater process ended with ERROR: 7
error installing zip file '/external_sd/update_full_BLN-L21_hw_eu_zip'​
I cannot flash the FULL zip file with the core of the ROM but I can luckily flash the data, so I could get back Radio Fm and possibility to install themes....
To make the story short: is there someone who knows what this error is? Maybe I can get a solution.
Moreover: maybe this strange "device: HWBLN-H Display: BLN-L21C900B300 Fingerprint: Huawei/generic_a15/generic_a15:7.0/NRD90M/jslave04010520/:user/test keys" is preventing me to flash?
Changing build prop file can be useful?
Thanks to all.

Diamantes said:
Hi everyone.
I am facing a LOT of troubles with my phone (as stated in this thread).
Anyway now I have again unlocked bootloader, installed TWRP 3.1.1, rooted but I have a strange ROM installed by a service tech shop after the phone became unusable.
The problem is that this ROM does not show an update option in settings so I am stuck at 1st march security patches.
Here attached my actual Build Prop file.
The ROM seems to be a BLN-L21C900B300 (never heard of this and not even found on Firmware Finder) and the fingerprints show a "test keys" rom:
device: HWBLN-H
Display: BLN-L21C900B300
Fingerprint: Huawei/generic_a15/generic_a15:7.0/NRD90M/jslave04010520/:user/test keys​
If I try to flash via TWRP a BLN-L21C432B360 (which was my previous stock ROM) it does not work and on TWRP appears the following:
......
write radio image
check_write_data_to_partition
write data error
E; unknown command (errno)
update_huawei_pkg_from_ota_zip: update package from zip failed
updater process ended with ERROR: 7
error installing zip file '/external_sd/update_full_BLN-L21_hw_eu_zip'​
I cannot flash the FULL zip file with the core of the ROM but I can luckily flash the data, so I could get back Radio Fm and possibility to install themes....
To make the story short: is there someone who knows what this error is? Maybe I can get a solution.
Moreover: maybe this strange "device: HWBLN-H Display: BLN-L21C900B300 Fingerprint: Huawei/generic_a15/generic_a15:7.0/NRD90M/jslave04010520/:user/test keys" is preventing me to flash?
Changing build prop file can be useful?
Thanks to all.
Click to expand...
Click to collapse
U should use dload method
Sent from my BLN-L22 using Tapatalk

arshilhonor6x said:
U should use dload method
Click to expand...
Click to collapse
I forgot to mention: dload not working. Always error.
That's why I think TWRP is the only solution

B300 (at least for the BLN-L24) is the first of two update packages to rollback from Nougat to MM. The first update will take you from the latest firmware to B300 and then the second update will complete the rollback to your device's stock firmware.
dload this package to complete the rollback then do a factory reset and wipe cache partition in stock recovery. After that download and update to the latest firmware and proceed to unlock BL and flash twrp and you should be good to go.

Dazed No More said:
B300 (at least for the BLN-L24) is the first of two update packages to rollback from Nougat to MM. The first update will take you from the latest firmware to B300 and then the second update will complete the rollback to your device's stock firmware.
dload this package to complete the rollback then do a factory reset and wipe cache partition in stock recovery. After that download and update to the latest firmware and proceed to unlock BL and flash twrp and you should be good to go.
Click to expand...
Click to collapse
but you mean that I have to downgrade from Nougat to MM again?
And before doing it I have to flash the stock recovery?
My phone was, we can say, flashed in some way by the tech shop to this strange version of Nougat and with the "test keys" fingertips.
With the files you provide I should "dload"?
I do not understand your post.
please explain better.
Thanks.

Diamantes said:
but you mean that I have to downgrade from Nougat to MM again? Yes
And before doing it I have to flash the stock recovery? No
My phone was, we can say, flashed in some way by the tech shop to this strange version of Nougat and with the "test keys" fingertips. Like I said they did half of the rollback process which is why you are on B300 firmware that you cant find available for download
With the files you provide I should "dload"? Yes
I do not understand your post.
please explain better.
Thanks.
Click to expand...
Click to collapse
Download the zip I linked above from Huawei website. Extract the update.app and put it in dload folder on your external SD card and force flash (power vol - vol +). It will flash all the stock images and return your phone to factory firmware android 6.0 EMUI 4.1. It might bootloop after this but booting into stock recovery (power vol +) and perform factory reset followed by wipe cache partition will get you booting. Then you can OTA update to latest firmware and root again.

Well, I will try this weekend. Now the risk to stay without phone during working days is too high
Ah, BTW, thanks for suggestion.

Dazed No More said:
Download the zip I linked above from Huawei website. Extract the update.app and put it in dload folder on your external SD card and force flash (power vol - vol +). It will flash all the stock images and return your phone to factory firmware android 6.0 EMUI 4.1. It might bootloop after this but booting into stock recovery (power vol +) and perform factory reset followed by wipe cache partition will get you booting. Then you can OTA update to latest firmware and root again.
Click to expand...
Click to collapse
Well, I changed my mind and tried anyway now. I was just too curious.
result:
Software install failed.
Incompatibility with current version.
please download the correct update package.​
As usual. Huawei sucks. Full stop.

Diamantes said:
Well, I changed my mind and tried anyway now. I was just too curious.
Click to expand...
Click to collapse
Haha I know the feeling. First time I went to rollback i jumped the gun and said screw it only to have my phone brick and no access to adb/fastboot until the next morning.
As usual. Huawei sucks. Full stop.
Click to expand...
Click to collapse
I agree 100%
Since you have nothing to lose right now just try the whole rollback process. Here is the update that the service center used to get your phone to BLN-L21C900B300. You can try flashing that again through dload or skip to trying to flash this. There are two different firmwares listed as the 2nd part of the rollback and you already said the last one I gave you failed so give this one a shot. Let me know how it works out for you:good:

Dazed No More said:
Haha I know the feeling. First time I went to rollback i jumped the gun and said screw it only to have my phone brick and no access to adb/fastboot until the next morning.
I agree 100%
Since you have nothing to lose right now just try the whole rollback process. Here is the update that the service center used to get your phone to BLN-L21C900B300. You can try flashing that again through dload or skip to trying to flash this. There are two different firmwares listed as the 2nd part of the rollback and you already said the last one I gave you failed so give this one a shot. Let me know how it works out for you:good:
Click to expand...
Click to collapse
nothing mate.
I tried, gives me always error after entering erecovery. Same as above,
Software install failed.
Incompatibility with current version.
please download the correct update package.​
Will try another method suggested in another thread.
Will keep you updated just for your curiosity...
Cheers

Diamantes said:
nothing mate.
I tried, gives me always error after entering erecovery. Same as above,
Software install failed.
Incompatibility with current version.
please download the correct update package.​
Will try another method suggested in another thread.
Will keep you updated just for your curiosity...
Cheers
Click to expand...
Click to collapse
Have you tried the Team MT huawei multitool to flash the images from the firmware? Use the Huawei update extractor tool to get the boot,cust,recovery,system and userdata.img from the firmware you tried to flash and then put them in the unbrick folder in the multi tool. Put phone in fastboot and run the Multi tool and use the unbrick option. I know your phone is not bricked but this way it will flash all 5 images in order through fastboot. You could actually try and flash the most current firmware with this method and avoid having to system update from MM to Nougat.

yes, exactly, I am trying with multitool . another bro suggested me how to do it even if with a slightly different method.
"You need flash the oeminfo via multi tool and then same firmware file for your current version via dload. It should be fixed".
WTF....never sweat so much for a phone. And never had those problems flashing samsung... and I was flashaholic

Yes, I have learned so much about this phone and the flashing/brick/unbrick process in the last 2 weeks.

Diamantes said:
yes, exactly, I am trying with multitool . another bro suggested me how to do it even if with a slightly different method.
"You need flash the oeminfo via multi tool and then same firmware file for your current version via dload. It should be fixed".
WTF....never sweat so much for a phone. And never had those problems flashing samsung... and I was flashaholic
Click to expand...
Click to collapse
Thats me i guess :silly:
---------- Post added at 08:13 AM ---------- Previous post was at 08:12 AM ----------
Dazed No More said:
Yes, I have learned so much about this phone and the flashing/brick/unbrick process in the last 2 weeks.
Click to expand...
Click to collapse
I am still learning and everytime its different result . Someitmeit works and sometimes it doesn't

Dazed No More said:
Yes, I have learned so much about this phone and the flashing/brick/unbrick process in the last 2 weeks.
Click to expand...
Click to collapse
When I go to multitool "unbrick", it asks for custom.img, but in no update.app of my firmware is present.
Moreover now I just can enter erecovery. It does not boot. I can enter fastboot only. Multitool is now not recognizing the phone. Do you know how to proceed?
I put in dload the firmware .app, but it says "software install failed"

Pheew...I managed to have again that fuc..ng C900B300.
I entered fastboot and repeated the unlock bootloader process. That way the phone got a hard reset and started over. Believe me when I say I tried all the methods I knew.
I think there is something locked somewhere in my partitions (I am not an expert of course) that prevent me to do deep modifications. Now I just can TWRP data but not the core. And again I have no update option. I think I am stuck forever at this stage with 1st march patches and nougat 7.0.
I do not think I will be ever able to have Oreo.
Amen. I am really tired to waste my time with this s**t. Next phone will be again a Samsung or One+. Full stop. Stop chinese brands.

Where are you located, Europe?

Yes

Ok bro I really hope this is it. Full firmware BLN-L21C432B151. I already downloaded it myself and checked with extractor tool it has all the images you need. Since you have fastboot back use the multi tool unbrick again and now that you have all the necessary images cross your fingers it will work.
And I agree with you about the phone. Made up my mind im giving this turd to my sister and getting the OP5T in a few weeks.

Thanks. I will do it this weekend. Today I spent 5 hours to get back my configuration after the hard reset with the apps I use for work. Cannot risk again tomorrow.
In another thread, sashank suggested to change OEM file because probably phone doesn't recognize the firmware I want to install.
It didn't work and lead me to start from scratch with the same strange build.
I will try your method but first I must study better the procedure because I don't want to mess up everything and risking to throw the phone in the garbage (where it belongs in the end...).
Thanks.

Boot animation problem

Hi
since i flash my update rom android 7.0
i have two Boot Animation
first is for honor
second is huawei
how remove second one?
plz help me

Try to clean flash your firmware through dload method, trying to be accurate while flashing. Something surely went bad while flashing the update you're talking about. Maybe you flashed the 7.0 for another variant, and now it messed up the firmware. Go on hwmt.ru site -> firmware database, and recover your ROM update package.
You have to pay attention and flash ONLY packages that matches your build number first 9 characters. Like "BLN-L21C432Bxxx", for example, will work only on a BLN-L21C432Bxxx. Flash only packages with PV at the end of the name.

RedSkull23 said:
Try to clean flash your firmware through dload method, trying to be accurate while flashing. Something surely went bad while flashing the update you're talking about. Maybe you flashed the 7.0 for another variant, and now it messed up the firmware. Go on hwmt.ru site -> firmware database, and recover your ROM update package.
You have to pay attention and flash ONLY packages that matches your build number first 9 characters. Like "BLN-L21C432Bxxx", for example, will work only on a BLN-L21C432Bxxx. Flash only packages with PV at the end of the name.
Click to expand...
Click to collapse
tanks but is there any way to fix it without flashing rom
because i already opened my bootloader and installed twrp
now i cant relock it
because when i relock it rom dosent load
& i have to relock it again & restore from twrp
(does d load metod need locked bootloader?or i can do it with twrp)

hamijan said:
tanks but is there any way to fix it without flashing rom
because i already opened my bootloader and installed twrp
now i cant relock it
because when i relock it rom dosent load
& i have to relock it again & restore from twrp
(does d load metod need locked bootloader?or i can do it with twrp)
Click to expand...
Click to collapse
my bootloader unlocked and load metod worked for me

aixabdennour said:
my bootloader unlocked and load metod worked for me
Click to expand...
Click to collapse
Tanks dude
The problem was twrp
I flashed stock recovery & problem solved!!?

hamijan said:
Tanks dude
The problem was twrp
I flashed stock recovery & problem solved!!
Click to expand...
Click to collapse
now i flashed stock rom with dload method
and i cant flash twrp recovery
i flash it and it says finished
bit when i hold volume up & power stock recovery start!
what should i do?
is there other way to root than twrp?
(bln-l21c185b361)

hamijan said:
now i flashed stock rom with dload method
and i cant flash twrp recovery
i flash it and it says finished
bit when i hold volume up & power stock recovery start!
what should i do?
is there other way to root than twrp?
(bln-l21c185b361)
Click to expand...
Click to collapse
Refer rooting guide for 6X and emui 5 in my signature. Dont use other files

shashank1320 said:
Refer rooting guide for 6X and emui 5 in my signature. Dont use other files
Click to expand...
Click to collapse
Tanks man??
Problem solved

hamijan said:
Tanks man??
Problem solved
Click to expand...
Click to collapse
Glad to know. Enjoy rooted phone :silly:

P20 pro unable to flash recovery

Hello,
I have a P20 Pro with unlocked bootloader, i decided to updated the phone trought OTA by flashing original recovery and instal OTA of Android 10.
After that i wanted to get back to TWRP then root my phone, but i get surprised that the phone bootloader get locked again after update.
I need to unlock my bootloader again in order to use my phone. the command in fastboot : fastboot oem unlock **************** (i put my old unlocking code which already worked 2 years ago)
but i get as a result :
...
FAILED (remote: invalid command)
finished. total time : 0.027s
can anyone help me getting back my bootloader unlocked and twrp installed please ? i dont want loose my phone
NB : i confirm again that my code was working before on android 9 and had bootloader unlocked

Rovyo said:
Hello,
I have a P20 Pro with unlocked bootloader, i decided to updated the phone trought OTA by flashing original recovery and instal OTA of Android 10.
After that i wanted to get back to TWRP then root my phone, but i get surprised that the phone bootloader get locked again after update.
I need to unlock my bootloader again in order to use my phone. the command in fastboot : fastboot oem unlock **************** (i put my old unlocking code which already worked 2 years ago)
but i get as a result :
...
FAILED (remote: invalid command)
finished. total time : 0.027s
can anyone help me getting back my bootloader unlocked and twrp installed please ? i dont want loose my phone
NB : i confirm again that my code was working before on android 9 and had bootloader unlocked
Click to expand...
Click to collapse
You idiot EMUI 10 cannot be bootloader unlocked, downgrade to EMUI 9.0!!!
If you want android 10 or even 11 you need something called a GSI, which I can inform you about it.

jjgvv said:
You idiot EMUI 10 cannot be bootloader unlocked, downgrade to EMUI 9.0!!!
If you want android 10 or even 11 you need something called a GSI, which I can inform you about it.
Click to expand...
Click to collapse
i'm really an idiot i can confirm that, how to downgrade please ? my bootloader in locked right now

Rovyo said:
i'm really an idiot i can confirm that, how to downgrade please ? my bootloader in locked right now
Click to expand...
Click to collapse
HISUITE

jjgvv said:
HISUITE
Click to expand...
Click to collapse
You saved me mate, was really a dumb move to go thought OTA without checking this point. Didn't now Huawei become that ******
Any advice for a good custom rom based on android 10 ?
And thanks again for your precious help

Rovyo said:
You saved me mate, was really a dumb move to go thought OTA without checking this point. Didn't now Huawei become that ******
Any advice for a good custom rom based on android 10 ?
And thanks again for your precious help
Click to expand...
Click to collapse
I can get you Android 11 actually, though there are a few bugs on both 10 and 11.

jjgvv said:
I can get you Android 11 actually
Click to expand...
Click to collapse
even better if it is android 11, i will try it
also have another dumb question : if i install TWRP on the EMUI 9.1 with unlocked bootloader, can i flash the emui 10 rom thought TWRP ? or this will brick the phone ?

Rovyo said:
even better if it is android 11, i will try it
also have another dumb question : if i install TWRP on the EMUI 9.1 with unlocked bootloader, can i flash the emui 10 rom thought TWRP ? or this will brick the phone ?
Click to expand...
Click to collapse
Yes, system will be 'destroyed', as you modded the recovery.

jjgvv said:
Yes, system will be 'destroyed', as you modded the recovery.
Click to expand...
Click to collapse
that what i was thinking also, so bye Emui 10 for ever i guess.
what was the rom base on android 11 you are referring to ?

GSI Project treble rom.
The definition is https://source.android.com/setup/bu...tem image (GSI,or higher can run successfully.
Google's Offical GSI will not boot on huaweis though.
After unlock bootloader download this https://github.com/phhusson/treble_...v300.l/system-roar-arm64-aonly-vanilla.img.xz
use 7zip(https://www.7-zip.org/a/7z1900-x64.exe) to extract the file once and rename it to system.img and move to C drive WITHOUT under any folders.
Then go to recovery and factory reset, do not advance wipe, wipe>factory reset only
Then go to fastboot and
fastboot flash system C:\system.img
Failing to follow will result in rage!

Backup System, Vendor, Data and Internal storage in TWRP before doing anything will be a wise choice, in case anything is wrong.

Forgot to mention you must flash magisk in TWRP before installing rom, to disable AVB(Android Vertified Boot) so that a custom rom can be loaded.

jjgvv said:
Backup System, Vendor, Data and Internal storage in TWRP before doing anything will be a wise choice, in case anything is wrong.
Click to expand...
Click to collapse
Yeah for sur, i'm rolling back, unlocking BL then TWRP in order to get a full backup. I ll check the rom after that
A senior member refer to for EMUI 10 upgrading :
"Don't update system via OTA when phone is rooted or bootloader unlock. Flash firmware via erecovery and rooted again"
i think this is incorrect right ? he cant root again while on EMUI 10 ?

jjgvv said:
Forgot to mention you must flash magisk in TWRP before installing rom, to disable AVB(Android Vertified Boot) so that a custom rom can be loaded.
Click to expand...
Click to collapse
thanks for the proper advice

Rovyo said:
Yeah for sur, i'm rolling back, unlocking BL then TWRP in order to get a full backup. I ll check the rom after that
A senior member refer to for EMUI 10 upgrading :
"Don't update system via OTA when phone is rooted or bootloader unlock. Flash firmware via erecovery and rooted again"
i think this is incorrect right ? he cant root again while on EMUI 10 ?
Click to expand...
Click to collapse
https://github.com/SkyEmie/huawei-honor-unlock-bootloader
Read troubleshooting part, EMUI 10 cannot unlock bootloader

jjgvv said:
https://github.com/SkyEmie/huawei-honor-unlock-bootloader
Read troubleshooting part, EMUI 10 cannot unlock bootloader
Click to expand...
Click to collapse
the lasted TWRP release cant decrypt the data, trying to find a working one and the phone don't want to boot to recovery anymore even with volume up + power bouton or via command adb reboot recovery. seems a good day hahaha

Still boots fastboot? Otherwise you are screwed

jjgvv said:
Still boots fastboot? Otherwise you are screwed
Click to expand...
Click to collapse
what do you mean ? yes i still can go on fastboot and already rolled back to Emui 9.1
just want to boot on damn recovery hahaha and if it can decrypt daba will be great

jjgvv said:
Still boots fastboot? Otherwise you are screwed
Click to expand...
Click to collapse
well i'm stuck with twrp not decrypting my data
i managed to install TWRP (several version), boot on them and so nothing to do
also can get root easily and magisk as i sideload zip from crypted TWRP version (worked)
tried the version twrp_clt_0.1.img from XDA stuck on TWRP starting screen
i'm almost giving up

Extract Android 11 Gsi, rename to system.img and move to C drive , not under any folders.
Go to fastboot then
Fastboot erase data
Fastboot erase cache
Fastboot flash system C:\system.img