Sim800c chip troubleshooter

Job ID: 31260672

Budget: $10 – $30 USD

I am having difficulty turning on SIM800C in my designed circuit (not module , the sim800c chip). The power is ok but when iI pull down the PWR KEY for 1 sec the device does not turn on the status does show any voltage.

Looking for someone who has practical experience in working with sim800c chip