iPhone iOS Firmware iPhone ipsw firmware download that provided by Apple, when you do the relevant operation at your own risk.

IPHONE XS 12.3 16F156

IPHONE11,2_12.3_16F156_RESTORE.IPSW
Categories:
12.3
Version:
3.7GB
Size:
05/13/2019
Date:
Unsigned
Status:
The file can help you a lot ?