Extract the savedata from the TN-V4 loader of your game on your hard drive, in your CMA’s PSAVEDATA/xxxxx folder (where xxxx are a bunch of letters and numbers).
Copy TN.BIN, FLASH0.TN, and 660.PBP in the game’s savedata folder (where you can find ‘H.BIN’)
Copy the game’s savedata to your Vita, using OpenCMA
Now run the exploit for the game (the trigger varies on the game. For 101-in-1 megamix, just loading the savedata should be enough) and TN-V should start.
On the first boot, the recovery menu will appear automatically.
Select ‘Advanced ->’ menu and then select ‘Install 6.60 files’ (this step is only needed if you’ve never used TN-V4 before).
Enjoy the install progress.
After the install is done, go back and exit the recovery menu.
Enjoy TN’s awesome work.