Where can I download firmware based on my SI

[somebody]

I know I can download other fw but I would like the original for my SI (1277-0349). If anyone has the same SI and can tell me the latest build number and Customization Version (found under service menu) would also help.

[Uliwooly]

Check the XDA forum 

[agrael]

2somebody

Check XperiFirm software (and rumors are that Flashtool has the same module) - it will help if you need the very last ROM.

2uliwooly

XDA itself has a very few links to regional ROMs. Moreover, some of them are wrong, eg: topicstarter's links to 15.2.A.2.5 German Unbranded are broken and another link below (provided by another member) turned to be Indonesian operator's, even not unbranded). For the last versions XperiFirm applies, though, as I've mentioned above...