What I see here in Thailand is that camera repair shops are increasingly unable and/or unwilling to invest in the equipment needed to work on modern digital cameras, particularly mirrorless ones. In some cases, particularly for consumer grade cameras, it isn't always profitable to repair cameras, and if they are under warranty, they will mostly be exchanged for a new body, with or without the old serial number and with or without the knowledge of the customer.
Some manufacturers of consumer electronics have had policies like this for decades. I remember during the mid eighties, a representative for Braun told me that they had stopped repairing razors many years ago. It was much cheaper to give the customer a new one than to equip repair shops and maintain stock of spare parts.
In a world that is drowning in electronic junk, this is a very sad development. I'm happy to live in a country where things can still be repaired for a reasonable price. That might not last long though. I had a pair of JBL headphones fail on me a couple of years ago after just more than a year of ownership. The distributor simply told me that repairing stuff was against their policies. So I decided never to buy a JBL product again. Unfortunately, the owner of JBL, Harman International, also ownes AKG, AMX, Becker, Crown, Harman Kardon, Infinity, Lexicon, dbx, DigiTech, Mark Levinson, Martin, Revel, Soundcraft, Studer, Arcam, and BSS Audio. Harman is again owned by Samsung.
See where this is going? Don't be surprised if all camera manufacturers are owned by two or three Japanese and Chinese companies within a decade or so. My guess would be Sony, Panasonic and DJI.