my passport has no sim card reception
I have been using using BB for several years up to now. But 2 days ago i found my Passport has no reception. At first i thought i would be the net work provider, but it happened again to the next day and it fail to search reception successfully. I took our my sim card and insert it into the other cellphone, that sim card did not work. i tried to the other one to the Pp but it has very weak reception just for 1 hour it happened the same thing. at that time my PP run on OS 10.2.2836. i asked some friends of mine they said a lot of BB users had face on the same my problem.
Please help me to fix my PP.
Thanks a lot and have a nice day to you all