Can you help me

I think there isn't free solution yet.Try your seller.And that doesn't cost lot of money.

i need to flash my z550i any body help

thankx

Look here, how to flash:

Step by step instructions for flashing a phone using only XS++ 3.1

or

Flash your phone using SETool 2 Lite

But first read this:

How to get access to download section

and

Forum rules

Nice day

i flash my phone w700i using xs++ it works fine but camera not function