Unlock Software For Palm Centro and Treo 680, 650, and 600

 

Support E-Mail: support@palmunlocking.com. For sales, please contact your seller.

 

 

To unlock Palm Centro or Treo, begin by preparing your computer:

 

If you don't have Palm Desktop installed, install it from the CD that came with your phone, or download it from here:

Unlock instructions:

 

Please note that screenshots may vary from what your model display shows.

  1. Locate your Hotsync cable. This cable plugs into the bottom of your phone and has a USB plug on the other side. 

    If you don't have a Hotsync or USB cable or prefer to use an SD card, please click here to view our alternate instructions.

  2. Download the unlock software for Palm Centro and Treo from the link below. If your browser asks you to open or save the file, pick "Open".

     

  3. If you saved the file to your desktop, find the ZIP file (named palm-centro-treo-unlock-software.zip) and open it by double-clicking the file.

  4. Install the unlock software using Palm Desktop by double-clicking on the PRC file in the ZIP file. Pick the one in the language you are most comfortable using.

    If you double-click the PRC file and you don't see "Palm Quick Install" or another Palm file install window, you may need to install Palm Desktop from the link at the top of this page.

     

    If you get a message that indicates you need to create a new user through Palm Desktop, launch the Palm Desktop program and create a user with your name, then try again.

     

    When the program comes up asking you what you want to do with the file, click OK. 


     

  5. Ensure that you have "Local USB" selected as a Hotsync option by right-clicking on the hotsync icon in your system tray. 

  6. Connect your Hotsync cable to the bottom on your phone

  7. Push the button on your Hotsync cable to start a Hotsync operation and wait for it to complete 

  8. If you get the message that the connection cannot be established with the desktop computer, you may need to reinstall Palm Desktop or switch to a different USB port

  9. (Treo 650/680 and Centro only) Remove the battery from the phone, count to 10 and place it back in. (Treo 600 only) Push the reset button on the back of the phone with a paperclip or other instrument. The phone will now reboot back to PalmOS

  10. Run the program "Treo Unlock" that you installed on your phone. If you don't see the program listed, ensure that you have selected the "all" category from the top of the home screen. 


     

     

     

    IMPORTANT: If your phone locks up or resets each time you run the program, you will need to "hard reset" the phone to clear any programs or settings that might be interfering with the unlocking process:

     

    Click here for hard reset instructions

     

    A hard reset WILL CLEAR ALL YOUR DATA, make sure that you have a Hotsync backup or another copy of everything!

  11. Once the program has finished running, you will see your "unlock data" listed on the screen 

  12. E-Mail the unlocking key along with the registration code to your seller. Your seller will then email back the unlock code.

     


  13.  
  14. Once you have the unlock code from your seller, follow the unlock instructions to enter the code:

  • (Treo 650/680 and Centro only) Remove the battery from the phone, count to 10 and place it back in.

  • (Treo 600 only) Push the reset button on the back of the phone with a paperclip or other instrument. The phone will now reboot back to PalmOS

After turning the phone on you will either see no message, or get the message "Your phone cannot be used with this SIM card". 

If you do not have a SIM card inserted or you have inserted an invalid SIM card, you will get the message that the SIM card was not found, and the phone will not accept your unlock code until you insert a valid SIM card. 

 

 

Open the dial pad. It should say "No service - SOS only" or list your phone carrier's name. If it says "Check SIM card", your SIM card is missing or invalid (please see the note above). 


 

 

Enter your unlock code in the dial pad of phone screen exactly as shown, then press the dial button on the screen. The code should be of the form "*#*#xxxxxxxx#". 
 

The phone will then say that the SIM lock has been removed. If the phone says that the SIM lock has not been removed, ensure that the phone radio is on. 

Test the phone with a SIM card from another carrier to verify the unlock process. If the phone still says "No service - SOS only", use the network selection option to ensure that your frequency selection is set to "Auto": 
 

If your phone is not unlocked at this point, please email our support at support@palmunlocking.com

 

 

 

 

 

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