A script that will unregister your phone number from CyanogenMod's WhisperPush implementation of TextSecure, allowing you to register with the WhisperSystems TextSecure server instead.
You'll need Ruby 1.9 or greater. Ruby 2 strongly recommended, I tested on 2.1.1p76.
As far as I know, all the requirements are in the standard library, so as long as your Ruby includes OpenSSL support then you'll be fine.
Once you've got Ruby and it's in your $PATH, just run the script with --help to get usage information. If you're feeling adventurous you can chmod +x it and let the shebang figure it out, but this will only work on UNIX-like systems.
Assuming that your phone number is +16501231234
ruby whisperpush_unregister.rb --mode getconfirm --phone_number +16501231234
Confirmation code sent to +16501231234. Run with -m unregister when you have it.
You'll then be sent a code by SMS, let's say it's 123-456
ruby whisperpush_unregister.rb --mode unregister --phone-number +16501231234 --code 123456
Unregistering gcm with 20 rounds....................done.
Unregistering apn with 20 rounds....................done.
You should then be unregistered from WhisperPush. Give it a few minutes and try to register with WhisperSystems' TextSecure. You shouldn't get the 'registered with another server' error now. If it doesn't work, give it another few minutes and try to register again.
Usage: ./whisperpush_unregister.rb [options]
EXAMPLES:
./whisperpush_unregister.rb --mode getconfirm --phone-number +16501231234
./whisperpush_unregister.rb --mode unregister --phone-number +16501231234 --code 123456
-m, --mode MODE Execution mode (getconfirm or unregister)
-p, --phone-number PHONE_NUMBER Phone number with leading + and country code
Examples: +16505551234 +442071231234
-c, --code VALIDATION_CODE Validation code received by SMS after --mode getconfirm
without any dashes (example: 123456)
-t, --type PUSH_PROVIDER Deregister Android ('gcm') or Apple ('apn') endpoints,
or both (default 'both', don't change unless you know
what you're doing and why you want to change this)
The script should fail usefully with instructions of what you've done wrong. If it doesn't, open an issue on here, or fork it and send me a pull request with the fix :)
Blah blah blah fork blah blah blah pull request blah blah blah open source.
Licensed under WTFPL. I accept no liability for anything going wrong and promise no fixes, though I'll help if I can.