How to flash Lumia?
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There are several different applications for flashing Nokia Lumia smartphones. In addition to the official Nokia Care Suite, there is another, no less official tool called Nokia Software Updater For Retail, the firmware process in which is organized somewhat easier. In this article we will explain how to flash Lumia using this program, and you can find information about other methods on our website in the section.
Firmware with NSU For Retail
The Nokia Software Updater For Retail application allows you to flash any Lumia smartphones based on Windows Phone 7 and Windows Phone 8. Some sources even claim that this is the most reliable way to restore the performance of a phone that has stopped turning on and turned into a “brick”. Download NSU For Retail version 4.1.0 you can. It's nice that the application supports the Russian language.
After installation, run NSU For Retail and connect your smartphone to the computer. The application will automatically recognize the model, find the appropriate firmware for it and display information about it. To start flashing, click the Update button and confirm the operation.Everything else the application does itself, it does not need to interfere.
Restore a non-working smartphone
If the smartphone is idle (the download indicator is spinning and nothing else happens), fully charge it. Launch NSU For Retail and click the “Device does not boot” button. Connect your smartphone to your computer and click "Continue." When a window appears with a message about waiting for a connection, hold down the power button and volume down key on your smartphone and wait until it vibrates. At the same time, the application will detect the smartphone and offer to install the firmware. The further process will go automatically.