LIBERAR R300

SALUDOS!!

Pues esa es la cuestion, necesito liberar un R300 el cual no se deja, sin marcar alguna casilla solo doy UNLOCK y me da esto:

PLEASE ATTACH TURNED OFF PHONE NOW
PRESS "POWER ON" BUTTON SHORTLY...
ROM version: 0502
Locosto HS detected, booting...
LOADER NOT RESPONDING
failed
Can't load ID loader !
Elapsed: 14 secs.

Y con el IDENTIFITY esto:

PLEASE ATTACH TURNED OFF PHONE NOW
PRESS "POWER ON" BUTTON SHORTLY...
ROM version: 0502
Locosto HS detected, booting...
LOADER NOT RESPONDING
failed
Can't load ID loader !
Elapsed: 14 secs.

Si marco SIGNED MODE da esto:

SIGNED MODE (USING SERVER)
PLEASE ATTACH TURNED OFF PHONE NOW
PRESS "POWER ON" BUTTON SHORTLY...

EROM "R5A036" CID: 0001
SOFTWARE CID: 0001
SIMLOCK STATE: "1"
LOADER VERSION: "R3A006"

PHONE IMEI:35457202162321
MODEL: R300a
FACTORY CXC: CXC1250616_R5A036
CURRENT CXC: 1209-4485_R2BC003
CURRENT CDA: 1210-8337_R9A
Elapsed: 19 secs.

Si doy UNLOCK con SIGNED MODE solo resetea el codigo de usuario y llamadas:

SIGNED MODE (USING SERVER)
PLEASE ATTACH TURNED OFF PHONE NOW
PRESS "POWER ON" BUTTON SHORTLY...

EROM "R5A036" CID: 0001
SOFTWARE CID: 0001
SIMLOCK STATE: "1"
LOADER VERSION: "R3A006"

PHONE IMEI:35457202162321
USERLOCK RESET TO "0000"
TOTAL CALL TIME RESET
Elapsed: 20 secs.


Pero lo que necesito es liberarlo, ya probe con pila bien cargada, bajando velocidad, limpiando pines y nada, ojala alguien me quiera hechar una mano.

Gracias.