Before detection Huawei Android phones, enable 'Manufacture' mode:
in dial pad type *#*#2846579#*#* for Qualcomm and Kirin based models, or *#*#14789632#*#* for MTK, then select
'ProjectMenu',
'Background settings',
'USB ports settings',
'Manufacture mode'.

Step by step guide for other Huawei phone unlock:
https://www.dc-unlocker.com/huawei_p...lock_tutorials

Check account status

User : C4F3K1N9
Credits left : 16

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DC - Unlocker 2 Client 1.00.1332

Detecting phone :

selection :
manufacturer - Huawei phones
model - Auto detect (recommended)

Found Phone : VIE-L09
Model : Huawei phone in fastboot mode
IMEI : 860865031147049
Serial NR. : N9Q7N16711000990
Firmware : VIE-L09C432B170

IMEI1:860865031147049
FB LockState: LOCKED
USER LockState: LOCKED
locked
Battery state: 8979mv

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DC - Unlocker 2 Client 1.00.1392

Detecting phone :

selection :
manufacturer - Huawei phones
model - Auto detect (recommended)

Found Applications port COM35

Model               : Huawei HiSilicon Kirin Android phone
Serial NR.          : YED7N16701004874
Firmware            : VIE-C900B103

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Reading unlock codes...

 Unlock codes:
NCK     : 1796899135513939
NetSub  : 1644113168482575
SP      : 2911209397327492
Unblock : 2946886165709045

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http://www.gsmunlockhn.com/imei-services/all-huawei---nexus-frp-remove-service-only-via-imei

-Download Unlock Client  - CLICK HERE

-Run HUAWEI_UNLOCK_CLIENT.exe and ( important ) wait 10 seconds for init.

-Enter Username / Password and press check account button to be sure you have credits

- Before phone detection connect cable to usb and enable Manufacture mode !

in dialer enter this codes (for Huawei ID remove enter this code in emergency dial screen)

Qualcomm and HiSilicon: *#*#2846579#*#*
MTK: *#*#14789632#*#*
WindowsMobile : ##2846579#

And in popup menu select ProjectMenu
then

1.Background setting
2.USB ports setting
Select Manufacture mode

Now press Read Phone info button

If phone detected - you can do all opearation which you need (unlock sim, bootloader code read , imei repair or Huawei ID remove)