I am using a Micromax A064. The second SIM card is not being detected at all. The SIM in slot 2 is working fine. How can I fix this?
Does your second sim slot works at all ?.
Have you tried putting just one sim card in the sim slot 2 ?
If it doesn't works then there can be two possible reasons for this :
One of my friends had this issue, for him the second reason was the problem!. Good Luck ! Tell me what you find. Also, do tell me which android version you're using and what ROM you're on.