ive had some success running dingoo a320/DINGUX apps on the pap gameta II Plus.
pap gameta ii plus firmware V3.1224.img
partition 1 = the linux base OS
partition 2 = the apps storage space
partition 3 = configuration storage
partition 4 = fat32 storage - this you would add manualy.
pap gameta ii RC1.img
Most selector menus are no longer limited by file extention
Fat32 partition with roms & other emulators
Removed unused themes only english support
Ongoing testing still in progress
Downloads: Work Folder
(Warning) Backup your original sdcard img before flashing anything just in case.
Both sd card slots support up to 32GB cards.