samsung galaxy s21 5G network issue

mangan — Fri, 20 Mar 2026 16:03:00 GMT

Hello everyone .i have a question .my phone model is samsung s 21 5g . recently i faced green line issue. i change the display in local insell TFT display with frame .after changing the display and frame i got some network problem . i try all the method like changing the sim brand which is get fastest network but i cannot get proper network. i go to the repairing shop but the mobile technician he didn't get any folt like flex problem or connector problem . if any idea in your mind whats the cause of this problem . frame or etc. if you have time plese reply my messsage

Re: samsung galaxy s21 5G network issue

Samsung_Moderator — Mon, 23 Mar 2026 13:38:55 GMT

Hello mangan, welcome to the Samsung Community! I understand your concerns with your device not being able to connect to your carrier network after getting your display serviced. You stated that you changed your SIM card but you still are unable to get the proper network. Take a look at this link for some additional troubleshooting: SIM card issues on your Galaxy phone or tablet. If you are still having issues I recommend that you reach out to your Carrier for additional assistance.

topic Re: samsung galaxy s21 5G network issue in Galaxy S21

samsung galaxy s21 5G network issue

Re: samsung galaxy s21 5G network issue