I had a perfect xp, never any issues. The update arrived .... here's what has happened so far:
-updated and phone became slow with flickering when screen went on and off.
-re updated with a factory reset (as recommended by some users). same issues, this time though - over heating, getting slower all the time. tried removing bloatware etc etc. no effect. still slow; (shouldn't have to do this any way, wasn't necessary with old jelly bean).
- phone broke: top 1cm of screen didn't react to touch. EE/Orange replaced within 24 hrs.
-New phone - came with old jelly bean:swift and as expected excellent.
- notification came to update. did so and now my new phone is slow too!
