There is: Take it to Apple and pay to have it fixed by them ;) I dunno if Touch ID is on the list of things they let you do yourself these days, but if so you "only" have to use their kit, which also lets you verify the parts IIUC
Apple tends to overcharge for repairs and even if not it’s better to have competition. The kit isn’t really practical for most people or repair shops, it’s probably mostly a PR stunt
OK, some people downvoted this, so let me explain:
Overcharging: Apple tends to replace whole assemblies rather than individual parts, and don't do board-level repairs or anything. Apple staff are generally just following a procedure and aren't allowed to/aren't trained to solve problems in the best way. Here's an example of them charging for a whole motherboard replacement when the issue was a bent pin: https://www.youtube.com/watch?v=o2_SZ4tfLns
Some people might be OK with this, but not everyone; competition is important!
About the self/independent repair program: The self repair program allows you to order one part at a time and you have to have the device to do it. Realistically, almost no one will do it themselves, and will use a repair shop. The program is impractical for repair shops, because they can't stock parts in advance. The other option is the independent repair program, which effectively turns you into a shipping centre for Apple; it bars you from doing anything but the most basic repairs without sending it to sending things off to Apple and they will do random inspections on your store and fine you if you're actually offering good service like board level repair or using cheaper aftermarket parts. So it's likely that both are mostly just PR stunts to get ahead of regulation while also not making a significant change to their business
