GPRS enable command returns error but network LED starts blink rapidly

Recently I was trying to make a get request to a web page using SIM800 gsm module.I’m always getting error on “AT+SAPBR =1,1\r” but the network LED blinks fast when I send it to the module.This worked very well until today and I don’t know why this happens.Thanks for any advice.

AT+SAPBR=1,1 needs to be sent only once. If you send twice, it will give error saying its already activated.
You can send AT+SAPBR=0,1 to disable GPRS before sending AT+SAPBR=1,1

1 Like