Having graduated Conestoga College in 2012, I shortly after, became Lead Technician of a branch of a relatively large electronics repair franchise, which for legal reasons, i would like to avoid mentioning.
my store location personally has serviced over 12500 devices in the past 4 years, and our technicians are personally trained by me.
i have self taught most of the the devices' internal workings and repairs, while having personal training by samsung officials in missisauga from their headquarters as well.
I have experience with some diagnosis, but unfortunately my board work is limited. i have practiced and self taught SMT quite diligently. with proper information, i can do most repairs given to me.
My experience with samsung warranty has taught me the process of reballing and replacing U204 Chips, which is a transferrable SMT skill for replacing most 16pin ICs, that i have brought to other android devices.
the official Samsung Data Sheet says to replace the U403, not the U406. im about to do my first, and im not sure which one to follow. how many times has this worked for your store?