Activation Lock Won’t Go Away After iOS Update? Here’s Why & How to Resolve

Stuck on Activation Lock after an iOS update? Learn why it happens and follow simple, safe steps to unlock your iPhone or ...
Ars Technica

Activate iPad in Apple stores?

My Mum has a Mac - but it's too old (G4 emac) to activate an iPad (correct me if I'm wrong). If we get the ipad mail-order, will she be able to take it to a (UK) Apple Store and have them activate it?
techtimes

Can't Activate Your iPhone, iPad Or iPod Touch After Installing iOS 9.3? Here's A Fix From Apple

Apple pulls iOS 9.3 for older devices after reports of the update bricking some of them and posing activation issues, but now the Cupertino brand offers a fix for those who already tried to install it ...
ZDNet

Some iPad 2 users experiencing activation issues with iOS 9.3 upgrade

If you haven't yet installed the iOS 9.3 update on your iPad 2, you might want to hold off as some users are claiming that the update is causing them to have difficulties reactivating the device.