Here's something slightly different :
M92 Unlocker. Fixed update kernel, which bypasses password restrictions.
It allows one to install updates from any vendor.
Please keep in mind that installation of ArtaTech FW is illegal
on generic M92 devices (i.e. not "Black Pearl") due to additional features such as IVONA TTS and Cloud Manager.
1. Grab this zip : https://www.dropbox.com/s/11smdrxknpoxhdc/update.zip
2. Unpack it to root of your internal storage memory
3. Run flash.oar from your M92
Now you can install any update.