Saturday, 16 February 2013

How to update Windows Phone 7.8 Build 8858 (7.10.8858.136) with CAB file using Zune

Ever since it has been announced that Windows phone 8 will not be available for old Windows phones with WP 7.5 the users were eager to have the 7.8 update for their handsets. There were many successful Windows Phone 7.8 update methods using the Zune software. Here is a new method of updating 7.8 using .cab installation file using the Zune software.

What is .cab file?
Cabinet file (.cab) is an installation file used in windows. The .cab file is a compressed form of a number of files which are meant to be copied to different locations while installing

The previous build of Windows phone 7.8 was 8779, known as TangoThe current build is 8858, formally saying 7.10.8858.136. The .cab file for OS and the language packs are given below.

What you need other than CAB files
  • a PC
  • The latest Zune Desktop
  • micro USB cable



How to install
  1. Download the .cab files of OS and language packs
  2. Make sure the phone has enough charge in it
  3. Connect the phone via USB into your computer 
  4. Close Zune software
  5. On the computer go to the directory where the OS update is downloaded
  6. Run UpdateWP.exe
  7. Back out to your main directory and run WP7 Update Cab Sender.bat
  8. Choose 'B' (This will back up your device to Zune, then install the updates)

Earlier version 7.10.8779.8 Files



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