I've a smart ultra 6 and today it started randomly vibrating.
Eventually noticed it's being caused by the home key activating. When I'm opening things, it's closing them again. Theres plenty of memory left in the phone, and I've tried deleting the cache and a hard reset, but still the same.
Sorry for the delay, it took a while to get to a Vodafone shop. They were able to tell from the IMEI when it was bought and sent it away for repair. Just got it back today, it said an Engineer had fixed the phone and they gave it a full service including software upgrade. No details on what was fixed, but the letter goes on to say most phones returned for repair were software or app problems.
I'd tried the hard reset a couple of times, one of those times I'd only installed an app or 2 but the fault returned. Sent it away again and they sent back a new phone. I reinstated it to it's previous state, and all's good 5 days later.
