i bought my iPhone XR 7 months ago and it was working very well with all carriers Sims, since i updated to ios 13 i started getting this message "sim not valid"
*The attached photo explains the issue
anyone who countered this issue before!!
iPhone XR
Your phone was never actually unlocked from its original carrier’s lock. It was hacked to bypass the lock, and the update to iOS 13 wiped out the hack. So now it is back to its original carrier lock.
Only the carrier it is locked to can permanently authorize unlocking it for you.
Your device is locked to a carrier and you must use their sim.
Sim card not valid!
