Alert icon
We're changing our privacy policy. This stuff matters.  Learn more  Dismiss

Reverse engineering a pager - part I

Loading...

Sign in or sign up now!
Alert icon
Upgrade to the latest Flash Player for improved playback performance. Upgrade now or more info.
5,243
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on May 9, 2009

In this video we show how we reverse engineer a pager - from taking it apart to finding the data sheet to probing the device for serial data.

Category:

Science & Technology

Tags:

License:

Standard YouTube License

  • likes, 1 dislikes

Link to this comment:

Share to:
see all

All Comments (15)

Sign In or Sign Up now to post a comment!
  • do they still make pagers ?? I use to have one yrs ago before cell phones..a smaller screwdriver might be a good idea..i can't read what is printed on the chips zoom in

  • demod baby demod LOL

  • God what a flash back! Its almost sends shiver down my back. Yes that chip stored the "CAP Code" and most pagers allowed for the service providers to password protect them so other paging companies would not reprogram pagers formally from there company but we found ways to hack the eprom discover the passwords and reprogram them anyway.

  • wait how many mhz?

  • With most pagers the RF receiver is activated briefly every second or two to save power. If the pager detects the long POCSAG preamble (square wave) followed by the start of its unique capcode then it listens for the whole message. Otherwise it just shuts off to save power until the next carrier is sent.

    If the pager didn't have this feature it would be receiving the whole of every POCSAG broadcast, which on a busy paging network would drain battery power further.

  • @lawzalexander But wouldn't the receiver have to be on all the time for the unit to hears it's ID? I'm not sure how any pager or data radio can operate otherwise.

  • Really good video.. thank you!

  • ahh ur a turnoff

  • I tried this with a pager once myself.

    I live in the UK where POCSAG is the most common protocol - unfortunately for hackers this means the pager's radio only turns on when it hears its unique ID broadcast (probably as a battery saving measure).

    Neat video, and fab ideas on your site.

  • Girl, you are cool ... LUV U !!!

Loading...

Alert icon
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more