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Adtran 838 Physical Reset to Factory Default

Hi All,

I bought a refurbished Adtran 838 SHDSL modem that was not reset to factory default.  I am able to get into it using READWRITE account with standard password but the ADMIN password is not working.  I am unable to execute the erase command or show the run config on the RW account.  Does anyone know how to reset the modem to factory default without ADMIN account?

I was wondering if there is physical way to do it like resetting something on the board.

Greatly appreciate any advise.

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