OK thanks a lot!
1)first of all, pressing c+usb+phone turned off don't work to my phone, in either way, SeTool 2 Lite or WotanClient.
The usb drives only detects my phone when i turn it on.

2) SeTool 2 Lite log wrote:

ChipID:8040,EMP protocol:0301

OBSOLETE EROM,FORCING COLOR -> RED
OBSOLETE EROM,FORCING CID -> 49

PHONE IS RED RETAIL PRODUCT
FLASH CID detected:49
Speed:921600
OTP LOCKED:1 CID:36 PAF:1 IMEI:************ CERT:RED
DCU60 flashing only supported for RED CID49 phones !
Elapsed:15 secs.

does that means flash went OK?

3) WotanClient log wrote:Not enough credits! (0 credits)
FAILED invalid account

How come it asked for credits since it's for free?