Chosen Solution

I can’t seem to get JC Pro 1000s to read a nand from an iPhone 5. The first attempt it kept sticking at 97% read and say failed. After updating JC and reballing the nand it’s just saying failed and seems worse. Any suggestions?

You should try with the NAND clean and without solder balls. Solder balls could cause the pogo pins to slip and lose contact. Is this specific to this NAND only or has it not worked for any NAND, past or present?