This saturday, i take my A4000 from home and travel 230km to a friend's home so he could do some work in a dead A4000.
Mouse+keyboard+sound it's working, the rest is ok.
we changed a lot of capacitors, but we need more 2 to finnish it. the Board and the A3640 had a lot of leak, some chips near the battery were in realy bad shape, so he is doing the best he can.
Fingers crossed.