Upgraded to Android M after there was a system update on my Moto G (2nd Gen). Ever since the update, I am unable to import my contacts from the VCF file saved in my SD Card. I am unable to add any contact in my phone contacts. I am unable to send any SMS nor am I am able to receive any SMS nor am I able to delete any SMS. Its become awful situation as the primary function of the phone (to search for a particular number and call) lost. Please help me. Android M has made my phone just unusable. :'( :'( :'(