Question about Panasonic KX TGA400B Cordless Expansion Handset
I followed the instructions on registering the handset with the base. It appears that both are registering because they both display "handset registering" and after a few seconds both handset and base beeps 3 times. However, when I try to make a call on the handset it displays "Invalid. Please register to the base unit".
I've repaired thousands of these kx-tga400b phones and we have the only improved keypad that eliminates the common keypad problems for good.
Does the cordless phone have a 3 in the top right corner after it registers to 3? If so, then it is registering correctly. If it THEN consistently says "invalid, please register" there is definitely a problem with the main circuit board and it's not at all common. I've seen a few of these but it's a rare problem. We can fix it but I'm not sure how much luck you would have with any other repair facilities.
If you have the problem intermittently it's probably a bad RF module. That's a much more common issue.
Posted on Feb 04, 2008
You could try to clear all the memory from the base unit and start again!!!
Instructions to clear phone (Uniden 8855).
1. Go to your base unit.
2. Put your flip phone in the cradle.
3. Press down and hold down (AT ALL TIMES) the end (find hs) button.
4. Whilst holding down this button, take the power plug out of the wall.
5. Whilst still holding down the end (find hs) button, plug the power back in.
6. When you hear a beep from the base unit system.
7. Let go of the end (find hs) button.
8. Your phone memory should be cleared now and you are ready to repeat the process of registering your base and additional handsets.
Posted on Feb 14, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Sep 06, 2016 | Lands Phones
Oct 17, 2014 | AT&T El52300 Cordless Phone
You may need to reset your handset in the following instances:
You lose a handset and purchase a new one. When you try and register to your existing base you get registration
You are unable to register any handsets to the base.
You had a base which needed to be exchanged by the manufacturer. When you register your existing handsets
to the base, the handsets say #3 and #4, but you only have 2 handsets.
When you are instructed to by the one of the manufacturer's call center representatives.
To reset, do the following:
Press and hold [ ] and [#] for more than 5 seconds. Select DEREGISTER HS.
WHICH HANDSET? appears. Select the handset that you want to de-register, and press the OK soft key.
DEREGISTER HS appears. Select YES, and press the OK soft key.
ARE YOU SURE? appears. Select YES, and press the OK soft key. You will hear a confirmation tone. The
handset will clear its registration information from the base, and then delete its own base information.
MODELS VARY! PLACE HANDSET ON THE BASE FOR REGISTRATION OR REFER TO OWNER'S MANUAL. To
re-register the handset to the base (see page 25).
If the handset cannot contact the base, it will display OUT OF RANGE. Make sure the handset is in range of the
base and the base is connected to power.
Note: It is also possible to reset the handset back to its original factory settings. All changes including Caller ID information
will be erased. For more information on resetting the handset back to factory settings and when you need to
do this, see www.uniden.com or call our Customer Service Hotline. See back cover page for contact information.
Resetting the Handset without the Base
If your original base is not available for some reason (for example, it is lost or somehow incapacitated), you can still
reset the handset and use it with another base.
Press and hold [ ] and [#] for more than 5 seconds.
Move the cursor to select BASE UNAVAILABLE and then press the OK soft key.
BASE UNAVAILABLE appears.
Move the cursor to select YES, and then press the OK soft key. ARE YOU SURE?
Move the cursor to select YES, and then press the OK soft key. You will hear a confirmation tone. The handset
will delete its own base information without trying to contact the base. When the base information is deleted,
the handset displays MODELS VARY! PLACE HANDSET ON THE BASE FOR REGISTRATION OR REFER
TO OWNER'S MANUAL. Register the handset to the new base (see page 25). of its user manaul.
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