w910i changing available languages

I have recently purchased a w910i. It has the following software info:
R1DA038
prg12009132_HONG_KONG_SH R1DA038

The available languages on the phone appear to be English, Chinese (Traditional), and Chinese (Simplified).

I would like to text with T9 in both French and English.

Would I need to flash the phone with a diffrent firmware?

Currently my phone is completely unlocked, would I chance locking the phone when re-flashing the firmware on the phone?

Are there any other ways to allow English and French on the phone?

Thank you.

For now you can`t change anything on this phone, because it has a new platform A2(db3150). Programs like xs++ 3.1 or Setool lite detects this phone, but you can`t do anything else.

Nice day

I would agree with Jasmin for now it is not possible to flash or add files to w910i because it has A2 platform which is pretty hard to hack. I wish that sony ericsson did not make A2 platform, because it would take long time for XS developers to hack it and I want to add some flash files into my w910i.