I am from India. I found this cellular network problem on MIUI recently. Some times network range goes off. If I put same sim in different handset and remain in same location, I can get range. Is it a compatibility issue of sim with MIUI? I am using latest rom. [ Last Friday release ] My handset is >> Motorola Defy I tried switching network options i.e. onl 2g,preferred 3g etc & and also tried by manually selecting network. Also tried rebooting phone & tried rfixing sim. Doesnt help. Any help? Today I am going to replace the sim with new 1 [ same mmobile number ] to give a try. Regards, Amey.