xecuter problems?

[dodgy dave]

i have had an xecuter chip installed i have tried to load six backup games when i start the x box up it goes from the set up screen to the x-box logo then it tells me it cannot read the disc or wrong region disc it will play originals and dvd movies i got my chip from www.playstationchips.co.uk -i was wondering is it maybe the two points for installing a switch as this came pre-soldered or do i need to put a switch between the two solder points as i feel its as if there is no chip installed please help a man from going grey overnight or would someone look at the diagrams as the elec-technician installed it from the drawings on there site-please help go on go on go on go on go on oh u will