I found what the solution to my problem was (ie: not being able to boot backups): i soldered the A wire to the wrong side of the resistance... so now i soldered it to the right side, and everything is working ^^
well, i havent tried ps1 backups yet, cuz i was too happy it worked :P
the strange thing is, the capacitor next to the scex is still broken. badly. i dont think it's able to work, because the whole side of it is broken off, through the core. yet, it seems to be no problem (or do i have a time-bomb in my house? :P)
i think i would advice other people that have to solder the scex in the v7, to solder it on the capacitor next to it. its a huge lot easier, and as far as i can see, there's a connection between the points anyway (could anyone check that if he gets a v7 on his hands?).
in the end, it was fun to solder the chip. when i broke the capacitor i got a little scared though, but the other stuff was fun
o yeah, i had sucky equipment ^^ i used the soldering thing that came with my matrix infinity shipment, and i didnt use the stuff that makes the tin stick better :P
now i need to think of a good ending for this post.... ...... ..... no idea. bye ^^