Debranding W995 Optus

[hyperion17]

Hi there,
I live in Malaysia and I was wondering, which FS and MAIN file should I use to debrand my W995 Optus?

Put this "customize_upgrade.xml"(unzipped) to TPA/preset/custom with A2Uploader_CID53.
customize_upgrade.rar
Turn the phone on and off. Update with SEUS. You'll get R1HA036.

[Ummah92]

Put this "customize_upgrade.xml"(unzipped) to TPA/preset/custom with A2Uploader_CID53.
customize_upgrade.rar
Turn the phone on and off. Update with SEUS. You'll get R1HA036.

Is that the only thing that I need to do? No need for C905 CustPack, R1EA028 MAIN ENERIC and R1EA028 FS?