Well, guess, what?.......
I've got my problem solved! 
I want to thank all the administrators of this forum because i found the solution to my problem here in the forum.
And now i want to write about what i did to solve this problem, maybe this can help someone else.
First let me tell you this:
Bootloader tricolor screen = no brick, and still can recover your phone
My problem was because i flashed a dump rom version at my phone, then try to relock causing all the problems listed above (no sync with my pc, phone locked,stuck on loading screen and a LOT of frustration
)
So i made a little reserch in the forum and i found a similar problem as mine here:
http://forum.ppcgeeks.com/showthread...vesync+problem
Where Razorloves states :"
ok...this is what you need to do. your phone is locked now, so you can't flash a custom rom or a stock rom dump. you have to flash the SHIPPED stock rom and then your phone will be fine. download the SHIPPED stock rom here http://forum.ppcgeeks.com/showthread.php?t=42741
then, you have to remove the mem card from phone and connect it to computer while your phone is in the bootloader mode (tri-color screen), then run the shipped rom exe file and the flashing process will begin.
or, you can flash via microsd card by using winrar to extract the nbh from the SHIPPED rom, rename it properly and put it on your mem card and flash it that way."
So i went there , dowloaded the sprint updated version (because my phone is a sprint).
then:
-removed my sd card from my phone.
-got in to bootloader mode (volume down+power buttons)
-conect my phone to y pc (even without no recognition by activesync)
-run the Hermann_C_SPRINT_WWE_1.03.651.4_RS1.03.15F_SPCS_1. 53_0909_PRL60613_Ship.exe.
and then
CONECTION AND RECOVERY SUCCESS!
I hope this can help someone else in the same situation i was, and save you a sleepless night
LOL
Thanks again to the forum.