I can't register a new handset to my base phone
From: Uniden Customer Support
On most models you can find an option in the menu for De-register?
In that case you would select that option and select to deregister the
handset.
TRU88 models you go to the main menu and go to De-register HS select yes to deregister the Handset.
DCT5 and DCT6 models: Press menu on the handset. Go to System Reset and Press select. Go to Deregister HS and press select. Arrow up to yes and press select. Then go back into the menu. Go to system reset and press select. Arrow down to Replacing the base and press select. Arrow up to yes and press select.
DCT7 models: Press and hold "end" and "#" until the system reset menu appears on the display. Then follow the instructions from above for the DCT5 and DCT6 deregister procedures once your into the menu.
TRU4 and TRU5 models: Press and hold xfer/del and end until "de-register?" appears. Use the plus+ button to go up to yes and press select.
To register any of the following phones please see you owners manual under either:
•Register handset or
•Register the digital security code.
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I can't register a new uniden dct646-3 on the base.
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