Thursday, 22 October 2015

[Tutorial] - How to install any firmware using Windows Device Recovery Tool



It worked for me, it might work for you. Do it at your own risk.

Windows Device Recovery Tool (WDRT) will download and install only the latest version of the software available for your device.
This tutorial will show you how to use WDRT to install ANY firmware version you want on your windows phone device.
That is, you can upgrade or downgrade. For example, go from wp 10 to wp 8.0, or from wp 8.1 to wp 8.0, or whatever you want.

Here is how to use Windows Device Recovery Tool to install any firmware released for your model:


I try to ilustrate the process in this video: https://www.youtube.com/watch?v=gnLQ_u4kF7E

STEPS:

0) Download the firmware you want to install (only the .ffu file)

1) Let WDRT downloads the last firmware version for your model (that's what it does). When the download is completed, close the program before the installation starts. You don't have to have the last firmware version installed on your phone, but you have to have it on the WDRT folder.

2) Go to the location where WDRT stores the files: c:/programdata/microsoft/packages/products/

3) Duplicate the folder "RM-xxx" (your model) containing the files WDRT downloaded. You'll have two folders with the same content, like "RM-xxx" and "ARM-xxx", for example.

4) Go back to the place where the .ffu file you want to install is and copy it.

5) Enter the "ARM-xxx" folder and paste the .ffu file.

5) Now you have two .ffu files in "ARM-xxx" folder. Copy the name of the original .ffu file that was already there before you paste the other .ffu file and delete it (the original one).

6) Rename the .ffu file you've just pasted with the name you just copied.

5) Open WDRT, select your phone, and click install/reinstall. After the program checks the compatibility of the files, the message "switching the phone to flashing mode" will apear, as soon as it happens, go back to the "Products" folder and rename the folder "RM-xxx" to something else, like "RM-xxxA, and rename the folder "ARM-xxx" to "RM-xxx". This has to be done quickly, before the installation starts.

6) If everything is OK, the installation will start and you'll have your firmware installed.

With this method i finally got my lumia 620 working again, after the touch screen stopped working due to an accidentally upgrade. I couldn't use any other method because both my lumia volume buttons are broken, so the flashing process needed to be automatic.



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