From first iPhone to iPhone 11, Apple has stored serial number, WiFi address, and Bluetooth address on NAND. However, REWA technicians recently discovered that the NAND on iPhone 12 does not store serial number, WiFi address, and Bluetooth address, which means that the NAND of iPhone 12 can directly be replaced by an iPhone 12 NAND and activated. Therefore, AppleLab technicians speculate that the storage upgrade of the iPhone 12 will be easier than previous models. Check out this video to verify our speculation!