Ensure the small coaxial cable connecting the main board to the sub-board is not loose or broken.
If software fixes fail, the issue is likely on the motherboard. Based on community solutions like those from :
Navigate to General Management > Reset > Reset Network Settings . This will clear saved Wi-Fi and Bluetooth data but often fixes software-related signal drops.
Using a tool like the Z3X Box , technicians often repair the IMEI or write a "Cert" file specifically for the G532F.