@dredmorbius If you'll consider buying a more modern tablet, I have a Xiaomi Mi Tab 4. Good performance, there are third-party ROMs available, has an SD Card slot. Unlocking was a pain in the ass because you need a compatible SIM card (it's a China-only device; mine is gray-market) and have to wait two weeks after requesting the unlock, while using it somewhat frequently; it's some kind of anti-theft misfeature.