Question about Vtech i5866 Cordless Phone
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Posted on Jan 02, 2017
SOURCE: Not Registered
I had the same problem and this procedure fixes it! First, unplug the power to the main base (answering machine) for 20 seconds. Plus it back in. Put the phone that says "not registered" in the main answering machine. It will say "press the find handset for 4 seconds". Do that. It will run thru a series of stuff and will find the handset. It works! Rich (jambones.com)
Posted on Jun 01, 2007
You are pretty close to the solution. The problem is the charge detection in the handset. All handsets on a cordless phone detect the battery level with an hexadecimal value in the memory. Each hex value equal a volt value of the battery. EX: 3.5v = 9B
3.6v = 9C 3.7v =9D etc... The problem is the hex value in your defective handset are all mess up. So 9B is not 3.5v anymore. Then your handset could last 1hr after foul charge or doesn't alert you before the phone goes dead due to low BAtt.
Posted on Nov 21, 2007
from the troubleshooting section of the manual
• Unplug the base unit’s electrical power and remove the battery from the handset. Wait for 15 seconds then plug in the battery place the handset in the base unit and plug in the power. Allow up to one minute for the cordless handset and base to synchronize
not a guarantee, something to try
Posted on Aug 30, 2008
My handset displays CONNECTING...
Move the handset closer to the telephone base. You might have moved out of range.
This is what was listed in the Vtech Manual.
What I suggest is not just powering it off, but remove battery and wait a couple of minutes. Put battery back in and try it. The other thing I suggest is a new battery or switching it temporarily with a phone that works, to see if that helps before you buy a new one. If the battery is weak it will have trouble reaching the base.
Posted on Jan 06, 2009
Install new batteries! Be sure to let them charge fully (overnite) before first use.
I have 5 of the i5808 expansion phones around my house - most about the same age - and they all started acting up ithin a few months of each other. I "experimented" with a new battery for one, and it solved the issue for that one phone...so I replaced the batteries in each of the others that were experiencing the problems. This was about 2 to 3 months ago, and all phones have been problem-free since the new battery installs!
Hope this helps.
Posted on Feb 01, 2009
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