Hi, using root browser I deleted "Phone.apk from my phone and so I have no network. My IMEI says invalid. I have tried to replace the .apk file but the phone still has no network please help. I can't even be sure it runs the old or the new OS but what i'm sure is that it runs android 4.2.2, build number M3G130v1.4C…2014/03/05. Thanks.