SPRD U2S diag mode (RM500U-CN module) - need firmware please

Changing various parameters on RM500U-CN with AT+QCFG command, and on rebooting all the COM ports have gone and only SPRD U2S Diag port is visible, and that goes after a few seconds…

I think this means the module is in bootloader mode?
In which case I can maybe re-flash, but I don’t have current firmware for this module.

PLEASE can I be sent the current firmware for RM500U-CN?


Dear @radiomean
Please share your OC to me, then I will check which suit you.

Hello, I don’t understand your request to ‘share your OC’ ?

Thanks for asking…