- English (United States)
nexus7 2012‘s docking station(product number：90-XB3XOKDS00020-)(JAN code：886227273485) works only on AndroidOS 4.2 or higher.
I have the dockin station and have been using for years.
But Recently I found the took called Nexus Root Toolkit, which makes us to up/downgrade the AndroidOS from 4.1.x to 5.
It is nice tool because not only make it easy to up/downgrading but rooting, unrooting, unlocking re-locking
I unlocked my nexus7 2012 and downgrade it to 4.1.x because it became insanely slow on androidos 5.1.
After that, I could not charge the device by using docking station.
At first I did not know that the docking station works only on 4.2 or higher, and I thought that I encountered the electronical disfunctional situation on my dock, and I was about to throw it away.
Do not throw it away before you check your androidOS.
I can not find this information on asus.com but can find on asus.co.jp.
If you can read Japanese, read my Japanese version of this article.