Say what you want about a massive retail chain releasing an own-brand Tablet, but when that Tablet sells over half a million units in one year, clearly you must be doing something right. But while the Hudl tablet may have been very successful for massive retailer Tesco – enough so that a sequel is planned for later this year, in fact – it hasn’t all been plain sailing.

An unusual glitch that causes the screen to go completely unresponsive in certain situations has caused the store to have to replace a significant number of tablets under warranty. Over the last few weeks, Tesco have been hard at work to discover a cause for this issue; and eventually narrowed it down to a faulty piece of code responsible for managing the screen’s sensors. As a result, it’s rolling out an Android update to fix the issue for any tablets still affected.

Tesco say that some updates have passed Google certification and are already hitting affected Hudls, but it could take up to three weeks for the fix to reach everyone. So if you’re using a Hudl and finding it to stop working every now and then, hold fast – you’ll soon be back to working order without the hassle of a return.