First, I flash OP-TEE 3.5.0(Linux)
It was worked well (UART Communication)
Second, I following hikey960 AOSP op-tee build (https://optee.readthedocs.io/building/aosp/aosp.html) and flash
After image flash, UART Communication was worked well,
but going back to optee + linux, uart doesn’t work.
If there is a factory reset method, please let me know.
Please help. Thanks in advance.