• After 15+ years, we've made a big change: Android Forums is now Early Bird Club. Learn more here.

Help Cannot get my Google Nexus 7 to upgrade

My interesting problem is that my Google Nexus 7 tablet(Build number JZ054K) bought in South Africa is running Android 4.1.2 and tells me every few days(via a notification) that an update is available but no matter what I have tried it never updates. It goes through all the motions but I am still on Android 4.1.2?
My wife's Google Nexus 7 tablet(Build number JOP40D) bought in Europe is running 4.2.1 happily but not mine.
Please tell me how to get mine updated.
 

BEST TECH IN 2023

We've been tracking upcoming products and ranking the best tech since 2007. Thanks for trusting our opinion: we get rewarded through affiliate links that earn us a commission and we invite you to learn more about us.

Smartphones