Possible Solutions. 1. Check the running tasks by pressing the back button for long so as to close all running processes. 2. When the Lumia 920 handset performs some programs that needs searching for permission to use location services, it may cause the Lumia 920 overheating problem. Displays – 1.Serial Number, 2.Date Made, 3.Purchase Date, 4.Date of last repair (0000 for no repairs), 5.Transfer User Data. 12345 This is the default security code. press and hold #. Lets you switch between lines. If you want more tips and articles related with NOKIA Lumia 635 subscribe to our notifications! Subscribe. In this Tutorial I will show you how to hard reset Nokia Lumia 520 (Windows 8 mobile).You can use this operation to fix issues like freezing, running slow, t POWER + VOL MENOS, DEPOIS DO PONTO DE EXCLAMAÇÃO:VOL PRA CIMA, VOL PRA BAIXO, POWER, VOL PRA BAIXODEIXE SEU LIKE!Master Reset Nokia Lumia 520, 625, 630, 720, The Hard Reset is also commonly known as factory reset. This tutorial will show you the easiest way to perform a factory reset operation in NOKIA Lumia 625. Find out the way to remove all personal data , customized settings and installed apps from NOKIA Lumia 625. Factory Reset NOKIA Lumia 520. Start by turning on the phone using the Power button. Then go to the Main Menu, find and select Windows Phone Settings. In the next step tap About. Afterwards tap Reset your phone to confirm. Success! To fix this error, the following are some suggestions: To re-enter your password for your Microsoft account connect your phone to the internet, go to Settings + Emails + Account and re-enter your password. To sync your Microsoft account, open Settings + Email + Account, then press and hold your Microsoft account and select sync option. IkMBRQj.