Hardware PSP GO CFW help

[aak]

hi. have got a psp go with cfw 6.20 b9.

1. how do i update cfw 6.20 to 6.60 or 6.61???
2. do i first need to uninstall 6.20 cfw then update to official 6.60/6.61 and then to do cfw???
3. should i do the hackinformer tutorial still (like is there psp go model more suceptible to brick during cfw process)??/
4. which firmare update should i go for 6.60 or 6.61

thanks in advance and i await a reply

 

[Tikker]

what issues are you having with 6.20? I never bothered updating my Go past that, and haven't run into a single game that didn't work 100% yet