Hey PlayStation Community. If you are having issues upgrading to firmware 3.10 and wish to go straight to 3.12, please follow these steps outlined in this Knowledge Center article:
- Turn off the system
- Remove the memory card, and restart the PS Vita (with no memory card inside)
- Download and install system software update 3.12
- Insert the memory card to the PS Vita system
This should allow you to install the firmware properly. Thanks!