Nexus 7 (2012) – why are there no Android 10 or 9 ROMs available and why has the only Android 8.1 ROM available only been released recently? – EpicChasGamer.com
Nexus 7 (2012) 版Android 5.0 升級檔流出- 香港unwire.hk
Steps to Update Nexus 7 to Android 7.1 Custom ROM
Asus Google Nexus 7 Custom Rom Android 7.1.2 (2012 Grouper WiFi Model ME370T) - 8Bit Mammoth
Nexus 7 2012 now rocks Android M Preview build, howsoever unstable it is!
Google's Nexus 7 gets a fresh coat of paint for the holidays | Ars Technica