How do I set up this device?

[StickyChannel92]

Which ISO do I need to set up with this device?
https://github.com/TriForceX/MiyooCFW/wiki/Custom-Firmware-Setup

And, how do I put new games on it, due to the SD card not showing me the correct partition to put in my games? Also, why is it so hard to turn this thing on? It should have some battery power after shipping.

[Rezzy-dev]

That's a PocketGo V2. To my best knowledge, it's not supported by the Miyoo CFW.

These are the devices that are currently supported, @StickyChannel92:

The Miyoo Mini and: https://github.com/TriForceX/MiyooCFW#console-revisions-differences

Nothing else is.

For other devices, you'll need to look for custom firmware for those devices. Just do a Google search for them. For the PocketGo V2, this is one option I know:

https://github.com/Ninoh-FOX/POCKETGO2_ROGUE_CFW

But don't ask for support for that firmware here, as that's a different development team, different firmware. Contact them.

So to directly answer your questions:

Which ISO do I need to set up with this device?

None from this site. The Rogue firmware or another CFW for the PocketGo V2 may work.

And, how do I put new games on it, due to the SD card not showing me the correct partition to put in my games?

No idea, but the partitioning and setup will be different on a different CFW.

Also, why is it so hard to turn this thing on? It should have some battery power after shipping.

The first thing you should do after you receive the device is use up the remaining battery (if there is any left in it) to about a 15% charge, and then leave the battery charging till full (100%).

Other than that, I'm not sure why you're having trouble turning it on. Is the hardware faulty, perhaps?