iPhone 3GS Logic Board Motherboard Faulty Restore error 28 !

iPhone 3GS logic board or Motherboard for sale. It’s stuck in DFU mode and when tried to restore it comes up with the error 28. The water indicators are white and hasn’t not physical damage to the board. Sold as faulty so no returns Because it’s in DFU mode I don’t know the GB size, serial number or IMEI number Please contact me for more details or to arrange a pick up.