This site claims they can downgrade 3.10

[pt9087]

They probaly give you a link to a modchip!

[Shrygue]

If there truly was a downgrader for firmware version 3.10, it would already be announced here and at other similar web sites, so that link referring to it probably must be a fake. A proper one shouldn't require a modchip to work.

[Buddy4point0]

this is def fake, e wouldve made it more news if it was real

[Fanjita]

Those sites are a long-known rip-off, designed to scam the gullible.

[jonezybaby]

or they'll install a mod chip, downgrade then take out the mod chip?

[Darkfrost]

I don't think that would work.. especially the taking out bit :P

[Gene]

it's posible, but waaaay too much work for the money. i'd call this a scam. do not buy.

[h4s30]

i read through this and you could possibly downgrade to 1.5 be the biggest pain in the ass

http://forums.maxconsole.net/showthread.php?t=61192

or the magic unbricking battery and memstick maybe???

but back on topic

actually on some other fourms i heard about some people that sent their psp's to some dood over ebay and he unbricked them for like 25 euros *i don't have the funny E thing*
and thats where i got the link from

i went to this site and i know there secrect
SCAM!!!!!!!!
i pitty the fool who goes there with hopes

[pibs]

^^ sounds reasonable but if the person who bricked their psp can't even downgrade with a simple app id hate to see them touching the insides and soldering. and you have to build a external NAND wtf lol

[h4s30]

thats pretty awesome though i know i don't have the patience for doing all that maybe i dunno i'mma go brick my psp now.....jp

but i didn't read the entire guide but it seems that it works something similar to the jigkick just way more complicated