Programmed USB-C Controller IC (U9500) for iPhone 15 Series (121 Pin)

An iPhone 15 Pro comes in that charges wirelessly but not by cable, and the touch screen has stopped responding too. Repair guides for the iPhone 15 range tie that combination to the USB-C controller at U9500. Normally that chip is paired with an EEPROM at U9720, and replacing it means transplanting both as a matched pair from a donor board.

This 121-pin controller is sold pre-programmed for the 15, 15 Plus, 15 Pro and 15 Pro Max. According to the listing, that means the EEPROM doesn't need to be swapped. The listing calls it a Tristar or U2, but the iPhone 15 uses USB-C.

Symptoms that point to U9500

• No cable charging while wireless still works.

• No connection to a computer.

• Touch failure alongside the charging fault.

• Damage after a faulty USB-C cable or liquid.

Fitting it

Clean the port and try a known-good cable and charger first. If the fault remains, separate the stacked board, preheat and lift U9500. Clean the pads, place the new chip on fresh flux and rejoin the board. Test cable charging, a computer connection and touch before final assembly.