Hacking Need help C2-12828-1

[HardMind]

Hello, I have this error with Diamond world next order, firstly this error was with NoNpDum, so i installed game with MaiDump and it worked but not for long, now whatever i tried with different forms i got same error even if i download the patch from psvita itself, it wont install.
I tried switch game loading also from MaiDumpTool and no deference.
This error:
(C2-12828-1)
save core File succeeded
us0:data/psp2core- 1590018070-0x0001403567-eboot.bin.psp2dmp.

I really tried from this error, any suggestion to overcome and solve it?

Thank you all.

 

[SuperDan]

Did you spoof your Vita to 3.73?
Forget about vpk or Mai files for games use pkgj the ps vita FreeShop... For all games ps. Vita PSP.. Ps1.. As I does compatibility patches.. & simply always works.. I have to say tho I didn't ever had any problems with vpk or Mai files in the early days of using my hacked vita.. So it's probably not that...

Also get the patching plug-ins for games
Osysscall6 is the best at the moment.
& NoDRM once you have downloaded your game from pkgj u MUST 1st goto Vitashell and
Refresh both
Live area &
Game licensesjust by pressing the = triangle button =
I would recommend that you use the Autoplugin app for grabbing new Important Plugins.. Lie the ones I mentioned above .. Make sure what ever you do to install all plugins to ur0 if you are using Sd2vita! Always ur0
Lastly check Vitashell make sure if again if you are using Sd2vita
To delete to Tai folder in urX otherwise when you boot up your Vita it with read both Tai folders from ur0 & urX and cause a conflict...
That's all I can think of mate.. Let us know if that helps