I have an iPhone4 16gb on 4.1, jailbroken, locked to rogers.
Every now and then, my phone, regardless of what the side switch is set on, vibrates for less than a second. Happens usually once or twice a day, sometimes as much as 5 times in a few hours.
Every time it does this, I check various apps that are backgrounded, to see if maybe the phone is trying to tell me that something has happened like a post on FaceBook or a message on eBuddy, but nothing is ever waiting for me.
Any idea what this could be? It only ever happens when its plugged in, charging or at full charge running on USB power, never when its unplugged. It even happens if its plugged into a device like my car, or a non-charging iPod speaker dock.
Every now and then, my phone, regardless of what the side switch is set on, vibrates for less than a second. Happens usually once or twice a day, sometimes as much as 5 times in a few hours.
Every time it does this, I check various apps that are backgrounded, to see if maybe the phone is trying to tell me that something has happened like a post on FaceBook or a message on eBuddy, but nothing is ever waiting for me.
Any idea what this could be? It only ever happens when its plugged in, charging or at full charge running on USB power, never when its unplugged. It even happens if its plugged into a device like my car, or a non-charging iPod speaker dock.