Configurar siemens gigaset 2420 desk station

SOURCE: Siemens Gigaset 2420 Desk Staion LCD Display

That is a common problem with those types of displays, they are sensitive to heat, cold and any movement. They were used by Siemens, and almost all the other manufacturers during this time period. Unfortunately on this particular model, they are not soldered in, they are pressed on by a machine. So if you don't have a Zebra cable press machine ($1000's), and a brand new display, you can only resort to sending it in for repair. Sorry.

SOURCE: como configurar la hora ?

Press "PROGRAM" and after " 0 " then insert the datum and time
as follow " 080422 2 02:55 1" (080422 are a date number 2 the key, 02:55 are the time and 1 the key).

SOURCE: Siemens Phone

Some dude on ebay a while back specialized in fixing this pblm w a guarantee, i think the price was around $75, a little steep for what the phone is worth. You may want to browse some of the shops that come up in response to searching on "siemens 2420" as I forgot the guy's name...

SOURCE: system pin # reset

There is a way to override and reset... I think you need to press *67# when in the system pin area via menu. Confirm this first though. There is a way to do this though- then you reset it to 0000- google it and you will find the answer-

SOURCE: siemens gigaset 2420. how do i reset pin on desktop base

1. I forgot the PIN number on my Gigaset 2XXX system base station. What can I do?
   Please complete the following steps to reset the system PIN on 2XXX back to 0000. On the system base station:
   

• Press MENU.
  
• Scroll to SYSTEM SETTINGS but do not press SELECT.
• On the keypad, enter *65# (Star, 6, 5, Pound).
• It will display "SYSTEM PIN RESET" and return to the idle screen.
• Note: The base station system PIN will be reset to 0000
  
  

1. I forgot the PIN number on my Gigaset 2XXX cordless handset. What can I do?
   Please complete the following steps to reset the cordless handset PIN on the 2XXX back to 0000.
   

• Press MENU.
  
• Scroll to MOBILE SETTINGS and press SELECT.
• Scroll to LOCAL SETTINGS and press SELECT.
• Scroll to CHANGE PIN and press SELECT.
• On the keypad, enter *65# (Star, 6, 5, Pound).
• Note: The handset PIN will be reset to 0000