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?
Thanks…