After reading our guide to download Ovi Store files to PC many users were faced problems while installing .sis.dm or .dm file on their mobiles. So, here is a simple and effective method which will convert a .sis.dm/.dm file into a easily installable .sis file.
First of all you will need Notepad++ for this method, which you can download from here. Now, simply open the desired .sis.dm/.dm file with Notepad++. You will notice that first four lines are in readable text format, while the rest of the lines are gibberish, delete these “readable” lines (including spaces), but not “z” which is present at the start of the 5th line. Now go to the bottom of the page and delete the last line, which will read something like this “–boundary-1—“.
Save this file with .sis extension, send to your phone and go through the installation process.
P.S. I tried this method on Nokia 5230, along with Nokia Maps & FingerPrint Scanner.
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