When I issue a power down on my M66 by AT command or driving Power Key, all is working fine and got the messahe
NORMAL POWER DOWN but it always reboot after with all functions activated even if I
AT+CFUN=4;&W;Z to save phone deactivated
Here is the log file
ATI Quectel_Ltd Quectel_M66 Revision: M66FAR01A12BT OK AT+CBC +CBC: 0,76,3892 OK AT+CFUN=4;&W;Z OK AT+QPOWD=1 NORMAL POWER DOWN RDY +CFUN: 1 +CPIN: READY Call Ready SMS Ready
First restart is not the expected issue, but why if I disable phone with
CFUN and save it is does enable phone on restart?
I tested with stabilized power supply lab, 4.2V same issue.