Stucked nokia lumia 920

[Atrix92]

I bought a used at&t nokia lumia 920(RM-820) from ebay. I used it nearly a week without any problem.after I wanted unlock it.after I turn off & put a Local sim card to the phone.after that the phone was stucked.(when I open an any application it displayed "Loading" & quickly go back to the home screen).after that I turn off the phone.but it took more than 20 minutes to turn off.But it did not turn on again.

please help me to fix this.

Thanks a lot to read this......

 

[gm08]

I would recommend you to perform a soft reset by pressing volume down + lock button until you see the Nokia logo. It doesn't erase anything, even if you have any important data on it.
If it doesn't work, hard reset would be an option.

 

[Atrix92]

please tell me how to hard reset my phone?

 

[decaf19]

please tell me how to hard reset my phone?

1. Turn your Lumia 920 off.
2. Press Volume DOWN and keep pressing it while you connect the charger until you see an exclamation mark!.
3. Press - in this order - Volume UP - Volume DOWN - POWER - VOLUME DOWN.
4. Your phone will reset and reboot. Pls be patient during the reset process.

 

[DaNnY BoOy]

1-Shut down your phone
2-presse de volume down key and connect you charger while you press the button