#4 – Bluetooth connection issue and fixing on vivo iQOO 9 (SE) or 9 Pro
Step 1: Put off your vivo iQOO 9 (SE) or 9 Pro 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 iQOO 9 (SE) or 9 Pro Bluetooth is set to discoverable. So, other devices can see it and be able to connect to it.
Step 4: Check your iQOO 9 (SE) or 9 Pro 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 vivo iQOO 9 (SE) or 9 Pro 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 vivo iQOO 9 (SE) or 9 Pro
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 iQOO 9 (SE) or 9 Pro 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 vivo iQOO 9 (SE) or 9 Pro new device.
Step 5: Make sure there are no compatibility issues related to the frequency.
If the problem still persists, hand your iQOO 9 (SE) or 9 Pro over to a technician for a proper check.