hi guys

how are you doin?

now on en-psp the custom firmware 3.90m33

the conditions to install the custom firmware are:

1-you must be on the custom firmware 3.52m33-4 or 3.71m33-2 or 3.80m33
2-the batery must charged 100%

the preferred in this new custom are:

1-search in video clips
2-support skype software
3-there is radio works by the internet
4-support ps 1 games
5-the plugns of 3.80m33 works too

important before install the custom firmware: the kernel 1.50 works only on psp fat not psp slim

ok now the way to install the custom firmware 3.90

first download the custom firmware 3.90



after the download finshd extract the files from the winrar file then you will see a floder names UPDATE copy the folder then paste it in the psp in this way x:PSP/GAME
then open the update then you'll see a black screen press x putton then follow the instruction and thats all the custom now installed

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now how to install the kernel 1.50

download the kernel 1.50



after the download finshed extract the file then you'll see 150k_addon folder copy it and paste it in psp in GAME150

then copy the 150.pbp and paste it in the face of the memory of the psp then open the kernel 1.50 and press x putton and this the end

thats all i hope it is an easy explanation
and i waiting the replys