HP R3000T, R3065US, R3070US, R3060US, R3050US, R3056RS, R3050EA Connecting and Removing the Notebook
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Connecting and Removing the Notebook
2.Disconnect the modem cable from the RJ-11 jack on the notebook, if connected. You may leave the other end of the cable connected to the Expansion Base for future use.
Disconnecting the modem cable from the RJ-11 jack on the notebook