this is going to bite into his business model. Not in the least. If anything, this will HELP his business with people who purchase parts then discover that the

this is going to bite into his business model. Not in the least. If anything, this will HELP his business with people who purchase parts then discover that they're not actually capable of doing the work themselves and turn to him to do the work with official parts they've already purchased. The vast majority of people might be able to do the repairs themselves - eventually after hours of frustration and fear ("I just killed my phone!") and after purchasing additional equipment they don't normally have, just as the vast majority of people could eventually learn to do the same technology-related work that many of us here make livings on. The always-DIYers fraction of a percent are not the customers anyone's looking for. The vast majority that are willing to pay to have someone else do that hard part are the customers everyone's looking for. It's like plumbing - everyone CAN do it, few want to do it themselves (and take on the risks).