Reliable, futuristic and with cutting-edge technology, the Lumia 550 was announced in October 2015 and made available for sale from December 2015. It features a 4.7 inches IPS capacitive touchscreen with more than 16 million colors. The resolution of the display is 720 x 1280 (~ 294 pixel density). The processor of the smartphone is a Quad-core 1.1 GHz Cortex-A7; Qualcomm MSM8909 Snapdragon 210, while the graphic processor is Adreno 304. The phone has an internal memory of 8 GB and 1 GB of RAM. The operating system is Microsoft Windows Phone 10. Even if it was designed to work at an optimal level, as any tech product on the market, it starts to work slower than usual after a period of time and even to freeze whenever you open some applications. For this reason, it is highly recommended to perform a master reset.
The master reset procedure will restore all settings to original and remove the user data stored on the phone. This will prevent any infected files from damaging the rest of the smartphone, and all such viruses will be removed. When the procedure is complete, you will have a brand new phone – just like the ones you buy in the shop – so you will need to start reinstalling all apps and transferring files on it in order to use it as before.
There are two known methods to perform a hard reset.
Whilst everything important is deleted, the smartphone will be brought back to a working state in an instant. You need to keep in mind that a backup is recommended before beginning this process. Here is the first method to bring back your device to a functional state and get it up and running without problems:
- From the main screen you have to select Windows Phone Settings
- From the Widows Phone Settings menu, you will have to select About icon.
- You have to touch the Reset your phone.
- Choose Ok and the process will begin. Your phone will reboot with the factory settings.
Your phone will restart and it will start up with the factory settings.
The second method uses the hardware buttons and works when the phone is unresponsive and you can`t access the menu of the device. Make sure you have the battery charged because if the phone turns off unexpectedly during the process, your device may be affected. Now you can try the following steps:
- Turn off your device.
- Press the Power button.
- Press and hold the Volume Down button.
- Release the Volume Down button when you notice an exclamation point.
- Press Volume Up then Volume down then Power button and the Volume down again.
- Your phone will reset to its factory settings.