When I had managed to reflash my phone, it was on charger, and after 10-15 minutes it had turned on, now it's all right, you can check it here:

ChipID:8040,EMP protocol:0301
PHONE IS RED RETAIL PRODUCT
FLASH CID detected:49
Speed:921600
Flash ID check:2019
Flash props sent ok
OTP LOCKED:1 CID:49 PAF:1 IMEI:351xxxxxxxxx CERT:RED
FLASH CID:49 COLOR:RED

Model:K310i
Brand:Sony Ericsson
MAPP CXC article: R4EA031 prgCXC1250466_GENERIC_DO
MAPP CXC version: R4EA031
Language Package:S_E_EUROPE
CDA article: CDA102576/3
CDA version: R5A
Default article: cxc1250474
Default version: R4EA031

Operator: 216-01

USERCODE:0000

RESTORATION FILE PRESENT FOR DETECTED FIRMWARE

Elapsed:12 secs.

Thank you very much, you saved my phone ! So, should I flash it to W200, also, is it necessary to use read GDFS function ?