. Because 3.52 M33 is a very old "M33" era firmware, a direct jump to official 6.60 sometimes triggers the infamous "DADADADA" error , which prevents the update.
To install 5.00 M33-6:
Check out the official PSP 6.60 update page on Sony's website or join the active community on r/PSP for troubleshooting.
Psp 352 M33 Upgrade To 660 Portable __hot__ Jun 2026
. Because 3.52 M33 is a very old "M33" era firmware, a direct jump to official 6.60 sometimes triggers the infamous "DADADADA" error , which prevents the update.
To install 5.00 M33-6:
Check out the official PSP 6.60 update page on Sony's website or join the active community on r/PSP for troubleshooting. psp 352 m33 upgrade to 660 portable