Only just found this thread - my FP3 turned 5 last September, too. Along the way, I upgraded it to FP3+ (camera) and changed the USB module after a water incident. Original back cover (the white letter “O” is hanging on for dear life), though it has a chip or two, but the replacement is too expensive. The original bumper has gotten quite round on the back edges where I hold it, and it has some slack, but still protects nicely.
A new speaker module is waiting on my desk, the covering mesh of the old one had become dirty beyond cleaning (and consequently played very weakly), so I removed the mesh, which made the speaker surprisingly loud. However, it should sound better with the mesh and it also serves protection.
Also, a new battery is waiting here. The original one still gets me through the day with battery saver. But in order to improve speed which has deteriorated over time, I plan to turn off batt.saver with the new battery, even if that shortens its lifespan, but 4 more years is anyway the most I expect to keep my FP3. I’ve now asked FP support whether they recommend “calibrating” the new battery as described by Ifixit, or not. I had to laugh at the FP support page on charging, where they say the battery’s lifespan is “a year or two” - wtf…??
I also turned off UI animations (another speed boost!), and will extend SD memory so I can free some internal memory, and I’ll declutter the >100 open tabs in the browser, hoping to gain yet a bit more speed, so that the FP3 remains usable over the next years.
I have to confess that I am notoriously dodging updates, I’m still running Android 11. At first, this came through the scary reports of bugs and problems caused by the updates. And later, I read that updates would cost me even more responsiveness / speed than I had already lost (by general clutter, but also by apps becoming fatter with every update). Until now, no problem with the old Android. I know, we love FP for its many years of Android updates, but what good are they if they cause trouble or make the phone sluggish?
My wife will soon need a new phone, but I’m hesitant about FP5: One thing, she is really used to Qi charging, and another, she needs a really rugged case that is also protecting the display side when being slapped on the desk face-down. We’ll have to see…
Cheers to all fellow FP3 owners
(btw, my electric scooter is turning 6 now with >15.000 km, another piece of sustainability, even though the manufacturer Unu has gone bankrupt in the meantime - but I’m still driving happily, as long as it’s not or - now enough silly for today)