success to debrand ATT Z750a to Z750i

[doaremon]

I was success to debrand ATT Z750a to Z750i yesterday.

First. use A2 CDA File Generator v1.01 to create customize_upgrade.xml file.
but I edit CDA code in customize_upgrade.xml file as below:

<?xml version="1.0" encoding="utf-8"?>
<customization>
<info>
<model>Z750</model>
<phone-name>Z750</phone-name>
<cda-number>1201-6491</cda-number>
</info>
</customization>

then run program A2UPLOADER to put customize_upgrade.xml into tpa/preset/custom

Finally, run Sony Ericsson Update Service to upgrade new firmware.

CDA# 1201-6491 is Customized Indonesia. The firmware come with English & serveral Asian Language

good luck:)

sorry, forget 1 step.

After, upload customize_upgrade.xml into phone. you need to turn phone power on, and then turn off.

Then go to run Sony Ericsson Update Service