Jet Opto tablet running 4.4.2 - struggling with moving Apps to SD card despite root
I have a Jet Opto tablet with 16GB of internal storage running Android 4.4.2 model RSEIII. I’d like to install applications such as Amazon Prime & Plex onto an external SD card as the internal memory fills up extremely fast. The internal memory appears to have been split 2GB for applications and 11GB for ‘media’. I have rooted the tablet using Kingoroot and tried the full version of Link2SD but am struggling, possibly because it looks like when trying to move Amazon Prime the media partition appears to be the only SD card. Using root explorer I can see the external SD card (which I’ve formatted 2G FAT32 and 28GB EXT4). It is possible to move applications to the 11GB partition but I’m after more space. It’s a tablet from an Audi and I’d rather not change the ROM unless there’s a surefire way of backing up the original so I can restore it later. I’d be grateful for any help – if you need any more info please let me know.
Thanks in advance for any suggestions