The RF transceiver or the Power Amplifier (PA) IC may have dry solder joints. Reheating or "reballing" these components is a standard 100% solution for persistent hardware-level signal loss.
Using a tool like the Z3X Box , technicians often repair the IMEI or write a "Cert" file specifically for the G532F. The RF transceiver or the Power Amplifier (PA)
Navigate to General Management > Reset > Reset Network Settings . This will clear saved Wi-Fi and Bluetooth data but often fixes software-related signal drops. Navigate to General Management > Reset > Reset
Go to Settings > Connections > Mobile Networks > Network Mode . Switch from LTE/3G/2G (auto connect) to 2G only to see if a signal returns. If it does, your phone may have a failing 4G/LTE antenna. Switch from LTE/3G/2G (auto connect) to 2G only
The "Emergency Call Only" or "No Service" status on a Samsung G532F (also known as the J2 Prime) typically points to either a software glitch, corrupted network certificates, or hardware issues with the network IC. Below are the tested solutions to restore your signal. 1. Initial Soft Fixes
If the IMEI is null or the certificate is corrupted (often shown as "Not Registered on Network"), technicians use specialized tools:
Ensure the small coaxial cable connecting the main board to the sub-board is not loose or broken.