Sim Card Slot SMD
The phone will sometimes toggle no sim card and back to sim card present. how do i solve this?
And also the sim card slot 2 is not working
Already tried to blow some dust out ? Is the device up to date? If this is the case, you probably need to replace the SIM card readers. This will be difficult as it’s soldered on the motherboard. You could do this by yourself if you have experience with micro soldering, otherwise you need to go to a local repair shop so they can repair it for you.