EC200U gsm module powered Down

Hello

I am facing issue with EC200U … after device startup with in some minutes module automatically enters into POWERED DOWN mode. i am unable to recover it from powered down mode unless and until i do the power cycle.

image

i have application to operate on battery with no power cycle.

Can some one please support to resolve the issue??

Please provide your detailed firmware version

AT+QGMR


This is the overview of EC200U on PCB, The whole PCB is powered by external +12V power supply along with connected 12V battery. The power supply section of this Unit converts +5V and +3.3V supplies to power the Microcontroller and GSM module.