My philips cd255 cordless phone displays unregistered when trying to register it again it says no base and also asks for pin no which i have lost

SOURCE: Registering a new phone

Hi,

I just purchase that same model and I had the same issue as you where the phone on the main station worked and the other 2 sitting on their own base station didn't work. What I did to fix the problem was to put each handsets (one at the time ;-) ) on the main base (the one with the answering machine). The Charge/In use light flashed a couple of time then the handset showed as Ready. I then put each handset on their individual base station and they all work fine now.

good luck
Martine

SOURCE: Registering a base station of Siemens Gigaset 2415 Cordless Phone

To register your handset to that base station, you must put the base station in registration mode at the same time you put the handset in registration mode. This is how you do it. At the handset you push OK when it asks you to register. If it asks you for the pin enter 0000 (factory pin) and push OK. The handset should say "registering base 1". Then at the base press the page/reg key down until it flashes (its to the immediate right of the cradle where you rest the handset for charging). That puts the base in registration mode and now its looking for the handset and vise versa. Now watch your handsets display. If it asks to to select an intercom number, then push ok and your done. If it says "invalid pin" then you need to reset your pin on your base (thats a different problem see below). If the handset times out and never registers, you need to repeat the process a couple times, you may have a bad base or it needs to be defaulted. If you need more help you can download a manual for free or get free technical help at the link below.
http://www.barclayent.com/manuals/Gigaset%202415%20User%20Guide.pdf

If you need to default your pin, you can do so but it will default the base station to factory settings. To do so remove the power from your base, hold your page/registration key down, and apply power back to the base. Count to 15, then let off the key. Turn off the power, count to five, then apply power again and follow the steps again to register the handset and you will need to reregister every handset that was previously running on it.

SOURCE: Cordless Phone problem- uanble to use!

contect to the service provider

SOURCE: Deregister lost or broken phones

Some tricks from a helpful Uniden rep:

holding down end+# keys at the same time on the phone for about 10 secs (you will hear a beep) will deregister the handset. If you have a dead handset and want to deregister it from the base, you have to reset the base. unplug the phoneline and power. hold down the "delete message" key, plug power back in. about 10 secs later, you will hear a long beep (theres a short beep upon powerup as well). At this point all handsets are deregistred and you will have to reregister them with the end+# trick. this way when #1 handset is dead, you can make a working one #1 and get the broken one fixed

BTW, this is a woot warranty, not uniden warranty. however the uniden rep gave me the number to the people who refurb (rox0rz!) these. I'll post an update when I finally get ahold of them (and the number if its actually helpful)

SOURCE: Cordless phones display searching for base.

Same problem: registering base ID on cordless get T23 PD error and subsequently, Searching for Base