M66 Power down always restart with phone activated

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.

Thanks

HI ,

First your PWRKEY might be low hence when you give QPOWD command module gets reset .

Second CFUN=4 is not saved hence you do get complete boot up .

Thank you