When you start charging a completely empty battery, the start key flashes until the screen wakes up and the charging progress is shown (may take up to 20 minutes).
- How can I recover/reset/restore my phone software?
- How can I prolong the battery life of my Lumia phone?
- I cannot connect to the internet using a mobile data connection on my Lumia phone
- How do I get week numbers to my Lumia calendar?
- My Lumia touch screen is not responding or is responding the wrong way