ISO Tool v1.957 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 v1.957 Changelog:
[NEW] FW FW case of more than 5.6, HBL had to change the normal restrictions on the start menu as
[BUG] Fixed a bug in the script
[NEW] FW is 5.6 or higher force the flash to write to change the ban

Download: ISO Tool v1.957
Source: Here