Chosen Solution
As the title says, I want to replace the Nand without updating ios. Most threads I have seen is people having fail nand flash memory. i have experience on how to replace its nand flash, but usually the new nand needs to be erased and programmed in order to work. but my case is if I have a working 32gb nand and I want to upgrade 256gb nand. Can i clone the contents of 32gb to the other memory? Would that work? Because i dont want to hit ios 15 because theres no jb for that version
the data on the nand that the phone is using now needs copied to the new nand in order to work. you could download a lower ios and flash it using 3utool.
