The PCB and BGA repair work comes with a 90 day warranty. That covers any faults with our replacement PCB or BGA joints. The board will be thoroughly tested before deeming the repair complete. As for flat charges, there will be a £250 fee incurred for the labour carried out. The PCB and other charges won't be incurred in the case of an unsuccessful repair which is again, unlikely. The memory and core can only be fully tested once run on a functional board