BND-L21 unsupported security patch!

After an interrupted update on an "Honor 7X BNL-L21 (originally BND-AL10)" touch screen stopped working.



I cannot flash using DC-Phoenix neither unlocking the bootloader using HCU client (or even DC-Unlocker client)


Is there a workaround?


HCU operation log:

Code:

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2019-04-16 14:34:34.423 Autodetect COM port and phone type start!
2019-04-16 14:34:35.257 Found COM port: COM84
2019-04-16 14:34:35.279 Found phone type: Huawei Android phone (HiSilicon CPU)
2019-04-16 14:34:35.464 Connecting to server...
2019-04-16 14:34:35.945 Connected!
2019-04-16 14:34:35.965 Open COM port COM84 (Android Adapter PCUI (COM84))...

Not supported/unknown chipset!

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DC-Phoenix log:

Code:

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Looking for a device in upgrade mode
No devices detected in upgrade mode
Device found: A5R4C17B07008772


16/04/2019 14:17:24 Starting to write device in FASTBOOT mode...

Looking for a device in fastboot mode
Device found: A5R4C17B07008772


Getting IMEI...
Getting build number...
Getting model ...
Getting battery state...
Getting backdoor info...
Getting lock state info...
Getting lock boot info...

SN:A5R4C17B07008772
IMEI:866370039987821

IMEI1:866370039993803

MEID:A0000082110590
Build number: :BND-L21 8.0.0.339(C636)
Model: BND-L21
Battery state: 3841mv
OEM lock state info:
 FB LockState: LOCKED
 USER LockState: LOCKED
OEM get bootinfo:
 locked

Device with unsupported security patch
User accepted to update device with unsupported security patch

Extracting partition XLOADER...
Writing XLOADER partition
XLOADER partition UPDATE :FAIL Command not allowed

Device with unsupported security patch
16/04/2019 14:18:07 Writing device finished - INCOMPLETE

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