Answer to: U601 RF Replacement iPhone 5 Baseband Chip IC U16XIt's very simple to remove the chip. First you need to shield other competes around the chip by BGA heat protecting tape to prevent from damaging. Then simply reflow het 250 - 320c on the chip and remove the chip with sharp knife. After that clean the pad with solder wik. Now it's ready to solder the new one but here is the issue before you solder this, chip you must program it because this chip is Baseband CPU memory chip. The serial number of the phone is saved in this chip, so you need to read the serial number from the phone and then you have to transfer the serial number data to new chip.