Originally Posted by
thebean
Sony's version numbers are confusing. Nokia's version numbers and phone model codes are much easier to follow!
I think is very easy. K850 custom files are compatible with W595(W760), so go to download section and pick a custom file according to your zone (for example K850i_1201-0077_R12A_GENERIC_WESTERN-EUROPE).
Then select all this below:
Code:
<?xml version="1.0" encoding="utf-8"?>
<customization>
<info>
<cda-number>1201-0077</cda-number>
</info>
</customization>
, open it in notepad and save it as "customize_upgrade.xml".
Upload it to TPA/preset/custom using A2Uploader, restart your phone, then try again SEUS. It should update your phone to R3EA037_Generic Western Europe firmware.