Chosen Solution
how to get Nand SN and other infos like country code, wifi Mac address if the iphone has problem in Nand if i don’t have original box and even the original case
The only way to get that info is to de-solder the NAND and read it with a NAND programmer such as the Naviplus Pro 3000. If you want to replace/upgrade the NAND, you could then write the metadata to the replacement NAND. However, doing this destroys the user data on the NAND.