There's been no official updates to anything since Navall 2.
However, there is a large community of Android fans locating updates for these generic Chinese units.
All depends on how tech-savvy you are and what risk of bricking it you're willing to take.
EDIT: Would be interesting to see what the specs of the unit are in settings -> About. In particular, build number and MCU version.
Last edited by mbonwick; 30th June 2020 at 14:57..
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