How To Unlock H710VL ???
 

Unlock Done But Still Invalid Sim Card.
Direct SIM unlock

2023-01-27 11:05:47.970 Autodetect COM port and phone type start!
2023-01-27 11:05:49.019 Found COM port: COM77
2023-01-27 11:05:49.028 Found phone type: Huawei Android phone (Qualcomm CPU)
2023-01-27 11:05:49.162 Open COM port COM77 (DBAdapter Reserved Interface (COM77))...
2023-01-27 11:05:49.298 Connecting to server...
2023-01-27 11:05:50.724 Connected!
2023-01-27 11:05:55.721 Read phone secure info...
2023-01-27 11:05:55.947 Read phone basic info...

2023-01-27 11:05:56.076 Phone info data backup saved to file C:\Users\I K R A M\Desktop\DiscTop Files\DiscTop Files\DiskTop Data\HCU_348\Backup\20230127_110556_35008553247232 8.BAK

2023-01-27 11:05:56.079 Unlocking start
2023-01-27 11:05:59.371 Read from server...
2023-01-27 11:06:02.575 Read from server success!
2023-01-27 11:06:02.582 Writing security data...
2023-01-27 11:06:03.012 Write security data success!
Unlock done!

https://hcu-client.com/supported-models.php we do not have this device listed in supported models.