hello hisilicon kirin 710 is supported Via Latest Update ? Or No
 

hello hisilicon kirin 710 is supported Via Latest Update ? Or No

for example Y9 2019 JKM-LX1 and Novi 3I INE-LX1R

Yes bro we need know what is the problem on about this hisilicon 710 and 980 all these are not supported by any boxes, but i dont know what of this lates update

YES.
If security version is lower than mid 2018 or if the phone has unlocked bootloader.
For new versions of Android security patch level, you can downgrade those models to previous security patch levels using Downgrade files.


Also you can flash those phone using UPGRADE mode with Sigma, no matter what security patch level present in the phone. You can use Full OTA Update or SD Upgrade files.

Dear Sigma team where can I download Huawei downgrade files with Sigma box?

Read ENABLE DOWNGRADE group of manuals. Everything is described there.