[SniperSnake]

so i wanted to update to 1.81 firmware from 1.67 firmware, and 2.00 firmware is the latest as of this post. ive been trying to run OCMA but it was still prompting me to update to 1.80 even with my modem off and wifi off so i figured it out.

first i installed ps3 proxy server gui

then i setup the proxy settings in the psvita, set the ip address to that of my PC, and port to 8080

i downloaded the 1.81 firmware from this link http://www.mediafire.com/?0whou4093twfp7v

i started the normal update process (via wifi) on the vita to get the logs/links on the proxy gui

in the gui i went to the replace files tab and put "http://dus01.psp2.update.playstation.net/update/psp2/image/2012_1116/rel_fab2db211065450e8091ee506b067973/PSP2UPDAT.PUP?dest=us" in the left box and then linked the 1.81 PSP2UPDAT.PUP to the right box

then started the system update via wifi again, still said update was 2.00 but instead of 110 MBs it was 102 MBs, wala let the system update and now im on 1.81 firmware.

note this is not to be confused with downgrading from 2.00 to 1.81

[Agrippa90]

is possible downgrade 2.00 to 1.81?

[SniperSnake]

Originally Posted by Agrippa90 is possible downgrade 2.00 to 1.81?

no. really there is no point to do that anyway... if you were on 1.81 and didnt already have a exploitable PSP game on the PSV memory card you cant get on ps store or get one.