Looking to find an android 5.1 or 6.0 installer for a tablet

[meichun]

I have a Nextbook Premium 8 (NX008HD8G) with a 32GB SD card running JellyBean 4.1.1 and would like to update to Lollipop 5.1 or 6.0. I would like to do this over a USB connection to my MAC or PC as the tablet does not provide a provision to do this under the "about this tablet". is there a .img file or zip file available to download to the SD card for installation and if so where can I find it. Also, how would you suggest to load said file.

 

[B. Diddy]

Welcome to Android Central! Unless there's an official Lollipop firmware released by Nextbook, you'd have to root the device and look for a custom ROM designed specifically for that device. The forums at XDA-Developers.com are a good resource for that kind of thing.