HELP!!!!! motorola xt910 hardlock topic

please help me, i just got a Motorola xt910 hardlocked, i guess someone before i receive the phone failed to put the unlock code more than 10 times is there any solution to unlock it??? i tried to buy unlock code from online websites but none worked, the phone doesn't ask for the code when i insert the simcard, i have to dial #073887* to ask for the code, once i put the code it says unsuccessful. flashed will retail ROM and nothing, flashed with original carrier ROM and nothing. is there any other trick or solution???