4460 W Walnut St, Garland, TX 75042
These guys are probably the best in Garland
I found a lot of good information about them online. Also, as I've stated before on this site: if you find a repair shop that does not ALREADY have a history repairing other electronic devices they are probably "new to the game" in one way or another. These guys have clearly been dealing with the hardware side of technology for quite some time. Go to them.