are there psps that are not downgradable via softmods.

[xbox360.8]

I'm interested in buying a psp, new one and was wondering if I can do anything out of the box to downgrade and allow for isos and homebrew to run.

what version is will the new ones be and how I can tell before actually buying it.

thanks.

[Xenogears V]

Last firmware version is 3.52.

You can donwgrade from 3.50 in down.
More info here:

http://forums.maxconsole.net/showthread.php?t=67074&highlight=3.50+downgrade

There are more firmware that can be downgrade,

Ex.

If you have Firmware 3.03:
Downgrade from 3.03 to 1.50
Install Custom Firmware
[Tutorial] Downgrading a v3.03 to 1.50
http://forums.maxconsole.net/showthread.php?t=46537

If you have Firmware 2.81, 2.82, 3.00, 3.01 or 3.02:
Update your Firmware to 3.03
Downgrade from 3.03 to 1.50
Install Custom Firmware


If you have Firmware 2.80:
Downgrade from 2.80 to 1.50
Install Custom Firmware


If you have Firmware 2.71:
Downgrade from 2.71 to 1.50
Install Custom Firmware


If you have Firmware 2.01, 2.50, 2.60 or 2.70:
Update your Firmware to 2.71
Downgrade from 2.71 to 1.50
Install Custom Firmware


If you have Firmware 1.51 or 1.52:
Update your Firmware to 2.00
Downgrade from 2.00 to 1.50
Install Custom Firmware


If you have Firmware 1.50:
Install Custom Firmware


If you want buy a psp, use this guide to determining psp firmware using box code:
http://forums.qj.net/f-guides-general-psp-42/t-determining-psp-firmware-using-box-codes-jun-28th-2007-28718.html

[xbox360.8]

wow, tons of info, thanks a bunch Xenogears V. gotta start reading and reading...

[Xenogears V]

No prob', dude!.;)