I have Toshiba prostege R830 and I forget bios password
Is there any one who help me to reset
Pc serial number=5C086947H
Challenge code=C26T7-M8M1R-CUL2X-UAQN6-6FLMD
Please I'm waiting for you for response code
Response code=?

Hello world i need your help for :

PC Serial No :3A088517H
Challenge Code: W1PUH-86NKP-33YAP-G5FTN-D05BG
Response code :

I have Toshiba Tecra s10

THX advance !

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A client bought this Toshiba z830-104 from me working pretty fine, so 6 months later he went for his "YOUTH SERVICE CORP" Wich cost him a year, now he has came back from the SERVICE but he had unfortunately completely forgotten the supervisor password he used to lock the laptop and i learnt that the password is stored on the EC CHIP and i don't know how to reprogram it, so I'm looking for someone who could help me to generate the response code for me
I can't Post the the ' challenge code ' now as it generate different codes at each restart
Thanks in advance

Toshiba Dynabook Portege A30-E-1JC

Please may I get a response code for the above laptop which gives the following challenge code?

"Serial":"50077105H"
"Challenge":"OMC9UtQHhKxtWDtragtq4pOvRukc7bYZPcvLTXKcA3jCfISp10pl9EPRszEipW7HvPxBLwW0fW5ZdlJKym9WZBUvWRXENCeuMxglRIwu7Tox6PMBscSOkBm56uTrtXIQ085jmRLWGbD3UIM2Y1h0fxDdDnauw8IUpMsoUjuSOJC5xIv88dO6b2R9fazZ29SZHvwrYbYvenGe3X1H0sebMJuJOjLlkIAaaT8TKEmsGcD6hl0bIlFiFLxcn1bW9VJboWzTC0sWKRKabQDjayNcAQiYXIPiHpMFSyI7EoySJ5A8ZCioR5c7frUWHmhpPFwbhCupy4GhdYc5hAHzPBmW9r45sPFgdjFyIaCUwS0O97G7MzzzyUfhsID"...