PSP saves corrupted after upgrade

[girjeu21]

hello, my psp game saves were corrupted after i upgraded my 5.50 gen-d3 to 5.50 prome-2
How can i get my saves back , i worked on these games my whole lifetime

PLEEASEE HELP ME!!!!!!!!

[Xenogears V]

hello, my psp game saves were corrupted after i upgraded my 5.50 gen-d3 to 5.50 prome-2
How can i get my saves back , i worked on these games my whole lifetime

PLEEASEE HELP ME!!!!!!!!

There are 3 possibilities.

1) Return to 5.50GEN-D3

or

2) In 5.50 Prometheus 2 Install this savedata fix:
http://www.maxconsole.net/showthread.php?153857-CFW-5.50-PROMETHEUS-V3-Run-iso-without-any-modules-plug-in.-For-6.20-games.
Post number 18

or

3) Install prometheus 4.