Go to Recovery Mode (Volume Up + Home + Power) and check your security bit/binary version (e.g., U1, B1, Z1). The patch file must match your device's binary version. Charge the Battery: Maintain at least 50% battery capacity.
Happens when the EFS partition gets corrupted, wiping out your network settings. g532f auto patch file
This is what professional patchers automate. Go to Recovery Mode (Volume Up + Home