check that your are not working on a carpet and that you are not shorting part of the ps3 out
1st step - go put ps3 on a table clamp the nor clip on to the nor chip with a good clamp that will cover the whole chip ( NOT A SMALL ROUND ONE ! )
2nd step - turn console on see if it works and then dump with 3rd switch up and rest down
3rd step - copy dump to pc
4th step - take another dump
5th step- check both dumps with swizzys dump checker
6th step- if all good patch with swizzys dump checker
7th step- put the patched bin on your usb etc and all switches down to flash to the ps3
8th step- when done flashing take 1 more dump to check it flashed ok then turn off re paste put back together and do what ever you like
hope this helps :p because there could be something shorting part of the board !