wow ... wd40 ... great idea,
will work for sure ... but 10-15days
and after that, acid contained in wd40
will start "eating" all metal parts you sprayed ....
i say this because i saw many 3310 sparayed with wd40 ...
and ... they looked like somebody washed them
in sulphur acid
and the real solution for 3510i mixed keys problem is :
short explanation :
there are 2 different board versions
one "normal" ... you can flash and reflash
ANY version and all will work fine ...
and second one ... different,
which after flashing with newer or the same FW version
will give mixed keys problem ...
solution is to write only a good PM file into phone
and all will work well.
tested on many phones,
especially phones from comviQ, sweden.
here's the PM file ...
write to phone
and do init simlocks
b.r.
ALexandar.