#4 – Bluetooth connection issue and fixing on Sonim XP8
Step 1: Put off your Sonim XP8 and reboot it again to see if that will automatically solve the problem.
Step 2: Clear the list of devices already added and re-add the device you want to pair with.
Step 3: Check to be sure that your XP8 Bluetooth is set to discoverable. So, other devices can see it and be able to connect to it.
Step 4: Check your XP8 power section to make sure it wasn’t set to power-saving mode.
Step 5: Try clearing the Bluetooth data and or cache to see if it will fix it.
Step 6: Reboot your Sonim XP8 again.
If all the other options still do not fix it. Then, you might need to try a factory reset.
#5 – SIM Issue and fixing on Sonim XP8
Step 1: Confirm that your SIM is working properly by trying it on another device.S
Step 2: Check to see that you have inserted SIM to your XP8 correctly.
Step 3: Check to see that your SIM tray is not damaged.
Step 4: If the SIM is too old, then go for a SIM swap before you use it in your Sonim XP8 new device.
Step 5: Make sure there are no compatibility issues related to the frequency.
If the problem still persists, hand your XP8 over to a technician for a proper check.