ISO Tool v1.971 is released. ISO Tool is a handy homebrew application that lets you manage and backup your UMD's straight from your PSP. ISO Tool completes by Japanese Developer Takka.

ISO Tool v1.971 Changelog:
[NEW] CipherBridge.prx do not load the changes within the complex process
* In that case, type6 (MHP3) can not be decoded
[NEW] OFW OFW in version to start with only
* Network-related functions are not available

* CFW will work, but the networking features are not available
(PrxEncryper the prx mode is caused not only support software)

Behavioral differences in CFW and OFW
· Type6 eboot.bin not encrypted in decoding (currently only seems to be MHP3)
· UMD can not be sucking out of the (CFW case is no longer available in both standard plug)
• The relationship between available networks and network update

Download: ISO Tool v1.971
Source: Here