Perhaps you've a different model iPhone SE while if so
that'd need be newer SE-2 or SE-3, to get some ideas
of SIM card type+location, see Apple Support articles.
Learn which size SIM card your iPhone or iPad uses - Apple Support
//support.apple.com/en-us/HT202645 ..Nano-SIM fits SE-1..
My iPhone SE (Ver #1) from 2016 has a SIM Card slot
& may be accessed with straightened paper clip wire.
[Won't need to mess with it for awhile; battery is good.]
Remove or switch the SIM card in your iPhone - Apple Support
Find the SIM tray on the right side:
- iPhone SE (1st, 2nd, and 3rd generation)
- iPhone 8 Plus
- iPhone 8
- iPhone 7 Plus
- iPhone 7
- iPhone 6s Plus
- iPhone 6s
- iPhone 6 Plus
- iPhone 6
- iPhone 5s
- iPhone 5c
- iPhone 5
- iPhone 4s
- iPhone 4 (GSM model)
Learn More:
