Universal troubleshooting guide for all iPhone and Samsung devices
Common Issue
Network, SIM, or carrier settings
Success Rate
85% fixed with basic steps
Data Loss Risk
Low - unless factory reset
Start Here
These quick steps fix most incoming call issues. Try these first before moving to intermediate or advanced solutions.
Weak or unstable signal prevents incoming calls
This resets all network radios quickly
A reboot resets the modem and network processes
If enabled, calls may be silenced or blocked
If call forwarding is on, calls may go to another number
You may have blocked the caller accidentally