Can't receive calls

[Pinkheart]

Since the day before yesterday I cant receive any calls. Upon checking, my phone was busy even Im not using it. I already transfer my sim card to other phone and its ringing.

[Uliwooly]

@Pinkheart

Could you test your phone on >>> safe mode ?

[Pinkheart]

Where can I find the safe mode?

[Uliwooly]

@Pinkheart

Click / Tap here >>>  safe mode 

[Pinkheart]

None of my files will be deleted?

[Uliwooly]

@Pinkheart

It will disable any third party apps, once you restart the phone it should reenable the third party apps. 

[Pinkheart]

I already put my phone into safe mode but still can't receive call.

[MarlonUk1]

@Pinkheart, could you check your network settings? make sure they are the right apn settings. try to set your network type tp 3g/2g.