Earlier today I noticed that my week-old Nokia Lumia 800 was switched off. I hadn’t charged it overnight and it had quite possibly run out of power, so I plugged it into the mains charger.
An hour later, it was still dead, and refusing to turn on.
First I panicked. Then I swore. Then I went to Google and found a Nokia support discussion forum post that advised pressing the volume down, power and camera buttons together to reset the phone… I guess that’s the ctrl-alt-del or sleep/wake-home of the Windows Phone world and it seemed to do the trick (at the time I had the phone connected to a PC).
Even though it showed a battery dead display (picture of a battery with a small amount of red inside it) when it turned on, it seems that the phone hadn’t completely run out of juice (or, if it had, then it was charging when it was plugged into the mains charger but needed a reset to take it out of a deep sleep) as it was at 70% when I disconnected it 10-15 minutes later.
I’ll be keeping an eye on this but hopefully it’s not a sign of impending battery issues.
[Update 31 January 2012: Be careful – volume down, power and camera is a hard reset and can result in lost data. Today, despite charging overnight, all night, and being fine when I went to bed, the Lumia was dead this morning. I used a soft reset instead (both volume buttons and power) to bring it back to life. There are more details, and diagrams, in this post at UK Mobile Review].
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