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Motorola MA580 Handset Not Connecting / Base Has Humming Noise

My handset does not connect to the base station. It flashes momentarily, but does not find the base. The base station has a humming noise when the phone line is disconnected and the talk button is depressed. Hum is also present when the phone line is reconnected. The problem was resolved by replacing the 9VDC power supply. The hum disappeared and the handset immediately connected to the base.

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1 Answer

HOW DO I DEREGISTER MY BASE STATION?


If you want to replace a handset or re-assign the designated handset number of a registered handset, you must de-register all the handsets and then individually register each handset.
To de-register all handsets:
Press and hold
FIND HANDSET
on the telephone base for about 10
seconds (until the IN USE light on the telephone base turns on and starts to flash), then release FIND HANDSET
.
Press and release
FIND HANDSET again. (You must press FIND HANDSET
while the IN USE light is still flashing. The IN USE light flashes for
approximately seven seconds.)
All system handsets show
CONNECTING...
The de-registration process
takes about 10 seconds to complete. All handsets show
NOT REGISTERED
when the de-registration completes.
If de-registration fails, you might need to reset the telephone and try again.
To reset:
Pick up the registered handset and then press
/FLASH
.
Press
OFF/CLEAR
and place the handset back in the telephone base.
-OR-
Unplug the power from the telephone base, then plug it back in.
note:
You cannot de-register a handset if any system handset is in use.

After de-registering, proceed with registering process:
If the handset screen does not show LOW BATTERY
or HANDSET X, you will need to charge the handset for at least five minutes before registering to the telephone base.
To register a handset:
Place the unregistered handset in the telephone base or charger. If
PRESS FIND HS 4 SEC ON BASE
does not appear on the handset screen after a few seconds, remove the handset and place it in the telephone base or charger again.
On the telephone base, press and hold
FIND HANDSET
for about four seconds (until the red IN USE light on the telephone base turns on) and then release the button. The handset shows
PLEASE WAIT...
and it takes about 10 seconds to complete the registration. The handset shows
HANDSET X REGISTERED
(X represents the handset number assigned)
and you hear a beep when the registration completes.

Nov 13, 2017 | Lands Phones

1 Answer

Hand set says connecting even before it is reset with new base.


This sounds like a registration problem, each 'old'
handset must be de-registered from its original
base and then registered to the 'new' base.

NOTE: the CS6229 handles a maximum of 5
handsets. If you have a handset displaying
"Handset #5" then you have a 'fully populated system'
even if you actually have only one or two handsets.

You will need to clear each handset ( I ) then clear
the base of all registrations ( II ) before re-registering
each handset ( III ) up to the maximum of five.
=====================================
( I ). First, to de-register a handset ---

0. Start by taking off the battery compartment cover.

1. press [menu]
2. scroll up/down to "Settings"
3. enter * 7 8 9 0 #
4. scroll down to "next page", press [select]
5. scroll down to "Register Clear?", press [select]
6. display asks "Confirm?" or "Register Clear??",
press [select]
7. display reads "Ok" and chirps, press [ off ]

8. UNPLUG THE HANDSET BATTERY
(this is why the cover was off)

9. Wait ~30 seconds, re-connect the battery &
replace the cover

10. display reads "Not Registered"
===============================

( II.) To clear the base of all handset registrations
( if needed, else skip ahead to ( III ). )

1. press [Find Handset] on the base and hold
past ~4 sec when the "In Use" lamp lights, at
about 10 secs the "In Use" lamp will begin to
blink. 2. release the [Find Handset] button momentarily,
then briefly press it again. After a moment,
all handsets that were registered to the base
(if any) will display "Not Registered" and be
ready for fresh registration ===============================

( III.) To register each handset to the base:

1. press [Find Handset] on the base and hold for
~4 sec until the "In Use" lamp lights.
2. press # on the handset and set the handset into
the handset cradle on the base
3. within 30 seconds or so, the handset will either
chirp and display "Handset Registered", then
"Handset #x" or it will say "Registration Failed".

NOTE: the battery must be well charged prior to the
registration process, a weak battery may cause a
"Registration Failed". Charge the battery for a
few hours and try the registration ( III ) again.

===============================
Good luck !!

Jul 23, 2015 | Vtech Lands Phones

1 Answer

My uniden DSS7855 with 1 base station and 3 handsets wont connect when i dial a number and hit the talk button it tries to connect and then comes up "'out of range" much appreciated for any help...


Clear the Handset's Base Data
  1. To remove the base data from a handset when out of range of the base, press and hold the 'end' button and the '#' button simultaneously until the phone beeps.
  2. It will now be de-registered from the base.
Note: This requires that the base and handset can communicate with each other.


Clear the Base Handset Data
  1. To de-register all handsets from the base, remove power to the base, and remove the handset from the base.
  2. Press and hold the 'flash/find hs' button while applying power.
  3. Wait for the beep and release the button.
  4. The charge light will now flash.
  5. Sit any handset in the cradle.
  6. When the flashing stops, re-register the handsets to the base.
Re-Register a Handset to the Base
1. Remove Handset Battery.
2. Reconnect battery while holding down "*" and "#" key.
3. Then press the right upper key under the LCD.
4. Press the "End" key.
5. Wait a few seconds and then the phone will be ready to register to the base.

Nov 12, 2010 | Uniden Lands Phones

1 Answer

How do you unregister a defective handset so that it can replaced


1. Delete or listen to all voice mail messages, if necessary, to clear the IN USE/Voice Mail light indicator.
Note: Skip this step if it does not apply to your MD Series cordless telephone model.
2. Press OFF on the base station and each handset.
3. Press and hold down PAGE on the base station until the IN USE light flashes slowly, then release.
4. Press and hold down PAGE again until the IN USE light begins to flash quickly, then release PAGE.
5. Quickly and fully press and release PAGE again.
6. Please register handset displays. Press OK to begin the registration process, or press EXIT.

Dec 10, 2008 | Motorola Mobility MD41 Expandable Handset...

1 Answer

It won't charge the rechargeable batteries anymore


I have the same problem , the only logical reason i could think of is that the charger connecting to the base station has malfunctioned . 

Aug 30, 2008 | Philips VOIP8411B/37 IP Phone

1 Answer

Uniden Cordless Phone Model DSS7855. frequently fails to connect to an incoming call, with 'out of range' indication. The phone is less than 1 meter from the base station.


The handset/base keeps a record of who it’s registered to. The base also keeps a record of how many handsets are registered to it.

Using the de-register function on the handset deletes the handset from the base (decrements the count) and deletes the base info from the handset. All this requires that the base and handset can communicate with each other.

To remove the base data from a handset when out of range of the base, press and hold the ‘end’ button and the ‘#’ button simultaneously until the phone beeps. It will now be de-registered from the base.

However, the base will still have this handset in it’s record.

To de-register all handsets from the base, remove power and the base handset. Press and hold the ‘flash/find hs’ button while applying power. Wait for the beep and release the button. The charge light will now flash. Sit any handset in the cradle. When the flashing stops, all handsets are inhibited from connecting.

However, the handset still appears to be connected to the base unit. Pressing talk will give an ‘Unable to connect’ message. To re-register the handsets to the base, you have to de-register the handset first with the two button method.

Of interest, pressing ‘*’ and ‘#’ on the handset while reconnecting the battery is suppose to reset the handset. Doing the same on the base unit puts you in some sort of diagnostic mode. Press speaker to exit.

Aug 21, 2008 | Lands Phones

2 Answers

Motorola 580 handset not working


My handset does not connect to the base station. It flashes momentarily, but does not find the base. The base station has a humming noise when the phone line is disconnected and the talk button is depressed. Hum is also present when the phone line is reconnected. The problem was resolved by replacing the 9VDC power supply. The hum disappeared and the handset immediately connected to the base.

Oct 31, 2007 | Motorola Mobility MA580 (612572111116)...

2 Answers

My Motorola MA580 sometimes work and others donĀ“t


It sounds as if the channel that the phone and base has selected during that session is bad, or being used by another system in the area. When that happens, try selecting another channel. You should be able to do this by depressing a button on the handset. Normally labeled "Channel". Please post further questions or comments. Please rate this solution through fix-it. Thank you

Jun 28, 2007 | Motorola Mobility MA580 (612572111116)...

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