So lets try this and see if it helps.
Hard Reset using buttons:
Press and hold the Camera + Volume Down + Power until the phone vibrates. Then release the Power key and keep pressing the Camera + Volume Down for a few seconds.
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My Nokia Lumia 920 shows the lightning bolt and gear icon. does not start and is frozen on that icon.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
So lets try this and see if it helps.
Hard Reset using buttons:
Press and hold the Camera + Volume Down + Power until the phone vibrates. Then release the Power key and keep pressing the Camera + Volume Down for a few seconds.
A HAD SAME PROBLEM TOOK OUT MEMORY CARD ATTACHED TO LAPTOP AND PRESSED VOLUME <DOWN> AND POWER BUTTON AND IT CAME ON
thank you, this seems to have worked for my phone
This Worked For Me
Hi Jack. I've tried sooo many steps. It's been 5 hours since my last try. Still stuck in spinning gear screen. I have my adapter plugged on and connected to my phone, but still won't stop. Been looking anywhere to find the answer for this problem.
So I want you to read this wiki article:
Reset operation stuck on spinning gears - Solution