why does my iphone both get no service never and it always says its searching what is my solution

Contact the carrier to troubleshoot network issues.

Remove and reinsert the SIM card.

Replace SIM card.

mine does exactly the same, it says its been 'searching...' for service for about a month now. whenever ive asked people what to do, they keep sayingto replace the sim because its more time a problem with the sim card

Then replace the SIM instead of digging up a 3+ year old thread to add no useful information.

Or take the device to Apple for evaluation. Being lazy will never resolve the issue.