u/CrunchyBC

My iPhone 13 seems to not connecting to the wifi. The option is completely disabled along with bluetooth.
When I had visited the Apple Care Center, they told me it is a Motherboard Issue, and would require about 25,000 INR to fix.
This problem just popped up out of nowhere, and my phone hadn't fallen in water or had gotten any damage.
Any fixed for this?
It is in iOS 26.2

Also, Currently, only the mobile data through a sim works. Can I add another E-Sim when I'm traveling? Will this work?