Something unimportant:
Got a replacement shell from eBay for £7.99. Made the assumption it would be a case of transferring the brains over from the old to the new, but it wasn't as straightforward as I'd imagine.
So most guides on the internet and Youtube etc. have steps for how to replace the battery, which is still perhaps a little more fiddly than one would expect. Standard advice appears to be to take out the emergency key blade bit, and put it back in but at an angle so you sort of wedge it side by side to loosen and free the rear cover:
Then the battery is s standard CR2032 than can be flicked out with a flat screwdriver or fingers and slotted back in.
This is pretty much where nothing else appears to exist that I'm aware of. So first thing that can be seen is a tiny screw in the bottom right corner, securing the bottom metal part of the fob. Unscrew that (aftermarket one is a small crosshead, and the OEM appears to be a tiny torx, I can't tell the size, one where if you have a micro spanner set for iPhone's etc. would probably has the appropriate size bit).
Once you do that, it appears the bottom cover is slotted in at angle. What I did was use the emergency key and pushed it up along the groove it sits along which appeared to be enough to get it loose and free:
The top cover is next. Took a while to figure it out, but with a flat head screwdriver here:
Then a bit of force upwards, it'll eventually come free:
There's a hook it seems on the opposite side:
So the screwdriver lever attempts to lift it from the opposite side. This is made a bit more tougher because there's a sort of adhesive attached as well.
Eagle eyed viewers will notice I've taken pictures from both of the fobs so they're both in different states of disassembly when I took pictures of the above.
But you'll be presented with this:
On the aftermarket one, the white plastic cover was able to be lifted. However I couldn't do the same with this one.
After all sorts of attempts at levering (and cracking the original case as a consequence), it looks like the brains of the unit comes out as one whole piece:
The keys are help in place by being sandwiched between the brains and the case, so the buttons all fell out. Did the same with the other case to remove its empty brain, as it were.
Gave this a quick wipe and clean with some rubbing alcohol:
Then it's pretty much a case of reverse of disassembly:
I used my fingernails to remove the old Skoda sticker badge and it looks like there's enough adhesive left behind to keep it in place on the new one. Sod's law it'll fall out eventually, so I'll have to prepare to source a replacement.
I also used a dab of superglue in the same place for the top cover, which is probably unwise long term, but I can't really tell what adhesive was used before, probably some PVA or contact adhesive maybe.
Anyways, here's a picture of what is essentially the same as the first:
Eagle eyed viewers should be able to spot the crack I introduced on the lower right of the old one. Bin fodder now.
It looks like some more parts have arrived as well from Czechia (I think that's what they call themselves now), so I'll collate and take more pics this evening!
Maintenance: £1344.91 (+£7.99)
Upgrades: £337.06
Miscellaneous: £584.95