Motorola Cordless MD400 series - "Out of Range" message on display

1-Press the hangup key (represented by a red phone) and the "#" key at the same time for at least five seconds.
2-Select "Deregister hs." Choose the handset and press the "Select" key (which also shows an envelope for messages).
3- Choose "Yes" to confirm deregistration. The phone clears its registration information from the base and deletes the link from its memory. The message "Handset not registered -- place handset on base to register. See owner's manual for help" now shows on the display. If you are out of range of the base, "Out of range" shows.
4-Place the handset in the base charging cradle. The phone automatically selects a new security code from those stored in the base.
5-Make sure your phone is working again after "Registration Complete" shows on the display
Hope this will Help. Thank you for using Fixya !!!

You can either ring the manufacturer for the part.
But this is expensive, or try on ebay for a decent price.
Hope it helps!

Here you can get the manuals:
http://www.usersmanualguide.com/motorola/cordless_phones

Please dont forget to rate my comment, if you feel i have helped you.

thanks.
have a great day.

try ebay.com

it isn't worth it...replace it with a new phone or look on ebay.

if battery has a charge then its charging --if not working when battery reattached then problem is with phone circuitry or plug connections

it isn't worth it fixing...replace it with a new phone.

It needs to be re-synced to the base unit. Check manual for exact directions, but it could involve anything from unplugging battery and base unit power, resetting in cradle, and anything else......

This is not a problem with the battery but rather the phone has lost sync. You can get it back by going to the menu screen then going to register. The phone will walk you through from there. Mine lose sync from time to time and I get the same error. I have these phones both in my shop and home.
Hope this helped you out...

Had the same problem and went to the Motorola US Web Site, FAQ for Out of Range - solution worked perfectly - see link below, you may have to copy/paste into your browser's address area

https://cordless.custhelp.com/cgi-bin/cordless.cfg/php/enduser/std_adp.php?p_faqid=13471&p_created=1174587747&p_sid=kw73CX_i&p_lva=&p_sp=cF9zcmNoPSZwX3NvcnRfYnk9JnBfZ3JpZHNvcnQ9JnBfcm93X2NudD03ODkmcF9wcm9kcz0mcF9jYXRzPSZwX3B2PSZwX2N2PSZwX3NlYXJjaF90eXBlPWFuc3dlcnMuc2VhcmNoX25sJnBfcGFnZT0x&p_li=&p_topview=1

[email protected]