Something bad happened. During the experiments, I flashed firmware from Teclast P50 AI on the Cubie A7A, which has the same A733 processor. Flashing using PhoenixSuite was successful, but after that the device does not start. I tried to flash native Android from Radxa Cibie A7A, the firmware ends with an error (even in a Linux environment via phoenixconsole).
No OS will start from a microSD card. Now, without errors, through PhoenuxSuit i can only flash firmware from Teclast, which I used to “kill” the device.
Help me please.
Are my Cubie A7A is die?
Hello, this may be because the Teclast P50 AI firmware has a secure boot feature, which writes non-erasable content to efuse (this is irreversible at the hardware level) and blocks the boot of other non-Teclast provided firmwares.
Please try Install System to MicroSD Card | Radxa Docs
If it still cannot be boot, it may need after-sales service to replace the SOC