My iphone is unable to connect to network

Idris5544 wrote:

It couldn't connect to wifi either

hmmm...

Have you restarted the iPhone ie power off/on...

Restart your iPhone - Apple Support

Reset or a Force Restart,

Force restart iPhone - Apple Support

Restore from backup, restore as new device.

Restore your iPhone, iPad, or iPod to factory settings - Apple Support

Settings>General>Transfer or Reset iPhone>Reset>Reset Network Settings <—————————RESET

ref: If you see SOS, No Service, or Searching on your iPhone or iPad - Apple Support