Unlock Bootloader for FREE

[Keran_3066]

since android 7 you can flash from dload folder* Service ROM only (FW from androidhost.ru). Using update.app from fullOTA-MF firmware the process will stuck at 5% and error message.
You can rollback to A7 via HiSuite only, don't try do it with dload method, it may brick your phone.
Try chinese HiSuite
https://consumer.huawei.com/cn/support/hisuite/
Btw, Service ROM (dload FW) for WAS-LX2C185 can be found here (for 17 €/USD )
https://easy-firmware.com/index.php?a=downloads&b=folder&id=25675

There is no service ROM for my phone on Android host.ru (at least I cant find one) and If I try the Chinese Hisuite will it downgrade to the right ROM for my phone?

 

[-Alf-]

If I try the Chinese Hisuite will it downgrade to the right ROM for my phone?

Yes

 

[Keran_3066]

Yes

When I downgrade to Android 7 would the dload method of Android 8.0 update.app work if I want to upgrade to Android 8?

 

[-Alf-]

When I downgrade to Android 7 would the dload method of Android 8.0 update.app work if I want to upgrade to Android 8?

Yes, you can upgrade to A8 using dload method (Service ROM only, not update.app from fullOTA-MF firmware).

 

[Keran_3066]

Yes, you can upgrade to A8 using dload method (Service ROM only, not update.app from fullOTA-MF firmware).

Chinese Hisuite doesn't have rollback option.

I give up ¯\_(ツ)_/¯

 

[Googole]

I tried this option some weeks ago with my Huawei P20 Lite, I managed to downgrade to EMUI 8 with Hisuite but I couldn't downgrade to a build older than June 2018 patch.
I tried to downgrade further with the update.app method but a error message shows up saying this: Software install failed.
I tried to find a solution but after a long time, I decided to give up and restore EMUI 9.1.
How can I fix this error?

 

[ZeusGT]

When Flashing TWRP file for changing the Bootloader unlocking code

The last file that we're suppose to flash with TWRP do i flash it after patch 8.0.180 that is the EMUI9.1? or must i flash it before the update to EMUI9.1 while i have the latest patch on EMUI8?

 

[Googole]

The last file that we're suppose to flash with TWRP do i flash it after patch 8.0.180 that is the EMUI9.1? or must i flash it before the update to EMUI9.1 while i have the latest patch on EMUI8?

You need to flash it before updating to EMUI 9.1 because the bootloader will be relocked when you update.

---------- Post added at 02:32 PM ---------- Previous post was at 02:31 PM ----------

Do I need to have a empty micro SD card for downgrading or can I use one with some files on it?

 

[QuAn64m]

I got a question:

so i have to shutdown my device in order to get to the fastboot mode. Then i get the needed informations. Boot my Phone again to ask in Telegram. And wen i get the file, i shutdown my device again to get into the fastboot mode again? is that right ?

 

[krokkerok]

I try to unlock fastboot. I downgraded the emui 9.1 to 8.0. I try to get de FBLock value but the result is this picture above. First I looked if my device was connected and it was because I did get the device number. When I want the FBLock value, its waiting for a device so how can I solve this and get the FBLock value.

 

[-Alf-]

First type the command
adb reboot bootloader
, then you can use fastboot commands.
Enable OEM unlock in Developer options.

 

[whitetigerdk]

unfortunately the slock service from telegram group has been down now for more that 1.5 month.. No sign from the niceguys whether or not it will ever get back up again.. (stock with a phone on EMIU 8 (June 2018 patch) just waiting.. loosing confidence in this method..

 

[horqai]

Same here :-(
What would be your recommendation to get to an unlocked bootloader?
As I just glued the back of the phone back on. I would like to prevent a method were I need to open the phone again.

 

[-Alf-]

Working method for free :
Instructions
Softwaire

I would like to prevent a method were I need to open the phone again.

dc-unlocker or hcu-client , for 4euros . There is no other way out at the moment.

 

[horqai]

Ok seems like I have to open it again.
As my phone is on Android 8 but security patch level Nov. 2008. As far as I understood so far, there is no save way to get the downgrade needed or do miss I something?

 

[-Alf-]

Ok seems like I have to open it again.
As my phone is on Android 8 but security patch level Nov. 2008. As far as I understood so far, there is no save way to get the downgrade needed or do miss I something?

You can safely downgrade to the lower Oreo build number using Service ROM. What is your current build number (from "About phone")?

 

[horqai]

I'm on ANE-LX1 8.0.0.146(C461)

Anyhow I've used the PotatoNV method and it worked nearly on the first attempt.

If I understand correctly, I can now unlock the Bootloader again, even after system upgrade by using this code in Fastboot - correct?

Just out of curiosity, what would have been the corect way to downgrade from C461 as I could just find version above the June 2008 one.

 

[-Alf-]

I'm on ANE-LX1 8.0.0.146(C461)

Anyhow I've used the PotatoNV method and it worked nearly on the first attempt.

If I understand correctly, I can now unlock the Bootloader again, even after system upgrade by using this code in Fastboot - correct?

Just out of curiosity, what would have been the corect way to downgrade from C461 as I could just find version above the June 2008 one.

each bootloader code is permanent, it won't expire (except motherboard replacement etc.).

what would have been the corect way to downgrade from C461 as I could just find version above the June 2008

Download correct Service ROM from androidhost.ru website, unpack .zip archive , find dload file in "Software" folder, and simply transfer it to the SD card, without unpacking it!
Turn off your phone and flash FW using three button combo. The process will erase all your data! (and will lock the bootloader ).

 

[horqai]

Hi Alf,
I hope this is not to offtopic - nevertheless I've updated the phone with the dialer code *#*#2846579#*#* ==> Software Upgrade ==> SdCard Upgrade dload method to 9.1.0.370 (C432) . Is it normal, that by this way the phone is still unlocked and not wiped at all?

Cheers and thank you for your support

 

[-Alf-]

I'm on ANE-LX1 8.0.0.146(C461)

Wrong firmware bro...you can not simply flash C432 firmware on C461 region without oeminfo changing (rebranding) - it may brick your phone. Try again with correct Service ROM (C461).

Update: for example :
https://androidhost.ru/2BGD