slim 250gig marry blu ray to mb HELP

[maori brutality]

ok first things first ....im a total noob and all this ps3 tech talk is some wot out of my league, but i have sent my ps3 to 2 different techs both costing more money then the system would be worth at the end of it so here i am.....
its a 250gig slimline 3.70....... BD logic board has been replaced x2 and nand chip refitted but still doesn`t work wont accept disc let alone play them everything else works fine
first tech replaced BD logic board and resoldered nand chip.....but still nothing ......so sent it to the next tech and this is what he wrote

Ok, so what I have done is I have removed the NAND chip from the orginal board and soldered it on to the a replacement board, to find that it is not working, the disc is spinning how ever but the NAND ain't responding with the board.
When making closer inspection of the original board, I noticed one to the power transistors was removed.. I don't know if this was intentionally or a big mistake by the last tech. Because what this has done is, it could have overloaded or shorted the NAND, so there is really no way to recover the BD keys.

There was however another way for flashing the systems BD keys on a replacement board, but your console system firmware is running 3.70 which the latest update. And I can't get through its security, but the goods news is there will be an exploit to bypass this SONY security. The bad news is I don't know when this will be released it really depends on the teams responsible to the exploits.

PS also i have a slim 320gig with a broken (dropped from a height) Blu Ray Drive but they dont have logic boards so im assuming i can just replace with another BD ???

[H3rman]

Which transistors were removed? Any pics? Also, where they just removed or was the "gap" filled in with solder to bridge connections instead of having the trasistors?

[maori brutality]

thanx for your reply i will try and get some pics up tomorrow

transistors were replaced