For older versions of Kirin 820 / 985 devices (fw: 10.x.x), you can fix "CHIP IS DAMAGED" issue using the following methods:
- downgrade the firmware version
or
- flash the higher firmware version and perform the Repair "Chip is damaged" service operation
Follow this manual:
Repair the "Chip Damaged" issue for Kirin 820 / 985 / 990 / 990 5G devices