February 16, 2022 at 10:41PM : ‪EBG-AN10‬ ON/OFF Factory Mode failed.

Welcome to Octoplus Huawei Software v.‪1.2.8‬

To enable 'Manufacture' mode dial
- for Qualcomm and Hisilicon based models: *#*#2846579#*#*
ProjectMenu > Background Settings > USB Port Settings > Manufacture Mode
- for MTK based models: *#*#14789632#*#*
ProjectMenu > Background Settings > USB Port Settings > Debug Mode

To enable 'Fastboot' mode
1. Power off the phone. Remove SD and SIM cards
2. Press 'Vol-' and insert USB cable
3. Wait until phone enters 'Fastboot' mode

To enable 'Upgrade' mode
1. Power off the phone. Remove SD and SIM cards
2. Press and hold 'Vol-' and 'Vol+' keys and insert USB cable
3. Wait until phone enters 'Upgrade mode'

Found COM ports:
1: COM115 HUAWEI USB COM 1.0

Job ID: 0000000002418F8A
2022-02-16 21:38:55
Starting Read Info
Selected phone model: ‪EBG-AN10‬
Searching Fastboot devices...
Found android device: 3VEDU20516009972
Detected ‪Android Sooner Single ADB Interface‬ port

Device Model: ‪EBG-N19‬
System: ‪EBG-N19 4.0.0.206(C10E2R3P2)‬
Android Version: ‪10‬
Base Version: ‪EBG-LGRP2-OVS 11.0.0.206‬
Custom Version: ‪EBG-N19-CUST 11.0.0.2(C10)‬
Preload Version: ‪EBG-N19-PRELOAD 11.0.0.2(C10R3)‬
C_Version: ‪C10‬
D_Version: ‪D000‬

Read Info done.
Performed by ‪1.2.8‬ Software version.

Job ID: 0000000002418FAD
2022-02-16 21:39:46
Starting ON/OFF Factory Mode
Selected phone model: ‪EBG-AN10‬
To Enable Factory mode put the phone in Upgrade mode and connect USB cable!
To Disable Factory mode connect the phone in Factory mode or Factory Fastboot mode!
Performing OFF Factory Mode operation...
Searching HUAWEI USB COM 1.0 port...
Detected ‪HUAWEI USB COM 1.0‬ port
Writing bootloader KIRIN990_5G_V3...
Initializing remote service connection...
Writing ‪XLOADER‬ partition...
Writing ‪UCE‬ partition...

ON/OFF Factory Mode failed.
Performed by ‪1.2.8‬ Software version.

by ed_mobstyle via GSM-Forum