I am facing a unusual problem with SIM808 GPRS operation.
Everything worked fine before. Problem now is that when I send “AT+SAPBR=1,1” manually, SIM808 goes in infinite loop of “There is GPRS data transfer in progress”(according to datasheet, NET LED blinks every 300ms). I have not connected any other device with SIM808 and commands are sent manually.
I would love to here a suggestion if any. Thankyou.