I'm sure our Hudl 2 was upgraded to Lollipop quite a while ago, so I think there must be updates available.

Try going to Settings > About Tablet > System Updates to see if there is an official Tesco approved update available. 

Mike
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Thanks for the suggestion.  The latest from Tesco is 4.4.2, and having bought it only a couple of days ago, I'm not going to risk voiding the warranty yet by trying to find a non-Tesco Lollipop image for it (aside from which, less than fully tested images might introduce further unknowns). 

It might also be worth upgrading Android to version 5.1.1 (Lollipop) if available for the Hudl.

Mike
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I had a couple of crashes today with Skydemon Android 3.3.3.2.20289 on a Tesco Hudl 2 running Android 4.4.2.  I got the Android "program has stopped" error twice within 5 minutes near Detling.  I mention the location as on the return journey, with a different SkyDemon route, it crashed again at close to the same location!  Probably a coincidence.  I had the same version of Skydemon running the same routes on a Samsung Galaxy S3 in my pocket, which ran fine, so perhaps a Hudl or x86 issue.  Very smooth performance on the Hudl in all other respects - my first couple of flights today with SkyDemon - much impressed. 

I posted this on the feedback form, but might be better here in case anyone else has an issue with the Hudl 2 or other Intel Atom Android tablet.  Back home I looked for crash logs, which I thought were in subfolders of /data, but I can't see in that folder (I don't have permission to view - the tablet isn't rooted). 

If anyone knows where to find crash logs (if they exist) I'll take a look. 

I phoned the office and they suggested trying the 3.4 beta, which I've installed, but I may not be airborne again for a week or so.