You can update your system software directly through the console if you have a stable internet connection:

If you need to restore or update to 3.73 to start the modding process, you can do it via USB. Have 150 MB of free space.

You may have heard from other Vita owners that firmware 3.73 "works better" than both older and some newer versions. There is genuine reasoning behind this sentiment:

Use the Modoru tool to downgrade to 3.65 for permanent Enso custom firmware 1.2.1.

Unlike some major updates that introduce heavy new features or redesigns (which can sometimes slow down older hardware), 3.73 focuses purely on performance refinements. The update was not burdened with major UI changes or unnecessary additions, meaning the Vita runs leaner and more efficiently on this firmware. Users have reported snappier menu navigation and fewer micro-stutters when launching applications.

: Users attempting to downgrade from 3.73 to older, more permanent versions (like 3.60 or 3.65) often faced "softbricks" where the console would get stuck in a boot loop.

Replace the expensive proprietary memory cards with cheap MicroSD cards.

So, why should you download and install PS Vita firmware 3.73? Here are some of the benefits you can expect:

Connect your PS Vita to Wi-Fi, go to Settings > System Update > Update Using Wi-Fi .