modoru VS modoru

-3.69/3.70 users can still safely downgrade with Modoru

Modoru Vita firmware downgrader (The FloW)

You didn't told what fw you're in but maybe try this https://github.com/TheOfficialFloW/modoru

There's a sticky in this reddit that will help you. Most people either update their firmware to 3.60 or 3.65 for a semi-permanent hack (henkaku/enso) or use modoru on an already hacked vita to downgrade to them from a higher firmware including the latest 3.74 firmware. The link in the sticky https://vita.hacks.guide/ is where to start. If you specifically want a particular system update file for modoru https://github.com/TheOfficialFloW/modoru you can find them here https://darthsternie.net/ps-vita-firmwares/ amongst other places. Please note that some Vita's came with firmware above 3.65 pre-installed. These cannot be downgraded with modoru but you can still use h-encore/h-encore2.

To downgrade: You need Modoru 2.3 (for fw 3.74) https://github.com/TheOfficialFloW/modoru

google... https://github.com/TheOfficialFloW/modoru

That's the whole point. You rename the tai folder, reboot and run modoru. It's even mentioned on it's official github.

Modoru 2.1 Vita firmware downgrader, required for 3.71/3.72/3.73 users (SKGleba)

I just use modoru... It's easy... Just follow tutorials on YouTube.. https://github.com/SKGleba/modoru/releases

Modoru v2.1

fw 3.60 is still the superior fw. Modoru will tell you the lowest fw the vita can go, even if it can't there's work around but, it's neither here nor there. If you're going to follow the guide and using vitaDeploy, it's fine, its the easiest and quick method., wish there was two options in vitaDeploy though, for each fw 3.60 and 3.65. But it is what it is.

Since the introduction of vitadeploy people seem to have forgotten modoru. https://github.com/SKGleba/modoru Use it to find out what's the lowest FW the Vita can be downgraded to simply by launching it. Bonus you can also use modoru to downgrade as well since it's what vitadeploy uses (in a smaller modified form). https://psvitamod.com/modoru-downgrade-the-ps-vita/ But it's a bit more involved. Otherwise stick with vitadeploy for ease of use. But it your cause it seems to be blocked perhaps?

-SKGleba has released 'Modoru 2.1' that will allow you to downgrade from 3.71/3.72/3.73.

You should be able to just use modoru to downgrade

I found a YouTube video and it says to download it if you are on version 3.73 https://github.com/SKGleba/modoru/releases

Here is link number 1 - Previous text "2.0"

Install and launch modoru v2 it will tell you the lowest fw your Vita can be downgraded to.