how can i send my IMEI to apple for unlocking the carrier network to use any network carrier

Carrier Lock:- Though your iPhone’s original Carrier is not obligatory to unlock your iPhone, but you may know the process here --> How to unlock your iPhone for use with a different carrier ...

How to unlock your iPhone for use with a different carrier - Apple Support

Apple can't unlock it. Only the carrier it's locked to can unlock it. You will have to work with them.

what should I do I can’t update my device or didn’t find network and carrier

Your question has nothing to do with the original topic. Post your own new question.

I wanted to know my network carrier and honesty don’t know how to check for my network carrier cos am planning of unlocking my iPhone

Your carrier is the cellular provider you pay for service every month...

how can i unlock my iphone to factory unlock