Réponse à : « Why won't my phone recognize my sim card? »For me the solution was to make my phone only use 3g, not 4g. Lucked into this solution, phone was crashing repeatedly if the SIM was inserted. Go to the secret android network screen by dialing: *#*#4636#*#* Then set the network connection to be wcdma only for 3g. Hope this helps someone who had my problem.