Unlock Code Instructions For Palm Pre, Treo, Centro, and Pixi Cell Phones for All Networks 

To unlock your Palm phone today, start by selecting your phone model on the Palm Unlocking Pages. In this guide I will show you how to unlock Palm cell phones and enter unlock codes into your phone so that it will be unlocked from your current network carrier such as Orange, AT&T, T-Mobile, etc. First you need an unlock code of course. If you don't have one yet, you can get from the Palm Unlock site. In case you have a Palm Pre or Palm Pixi, you will be using unlock software that will read the code from the phone so that you can enter it. Once the software shows it,  just enter the code and you'll have an unlocked Palm cell phone! Unlocking by entering a code on your phone's keypad is called "unlock by imei". Indeed, it is the most convenient way to unlock your cell phone.

Below are instructions that work for most network providers. 

How To Enter Unlock Codes on Palm Pre, Palm Pre Plus, Palm Pre 2, Palm Pixi, and Palm Pixi Plus:

1. Switch ON your phone with a not allowed SIM card.
2. Enter the unlock code, which you can get in my eBay store.

How to Enter Unlock Codes on Treo 180, 270, 750 and MAYBE 600 (for other 600 instructions see below):

1. Switch ON your phone without SIM Card.
2. Compose : *#*#CODE# (substitute the word "code" with the unlock code, which you can get in my eBay store.)

or

1. Switch ON your phone with a not allowed SIM card.
2. Enter the unlock code. If you don't have a Palm Treo unlock code yet, you can get one in my eBay store
3. Important Note: On some models the Num Lock is not automatically enabled so make sure it is ON before entering the unlock code.

How to Enter Unlock Codes on Treo 750: (alternative instructions):

1. Please insert a not allowed SIM card.
2. Place the battery and the cover, windows will boot automatically.
3. Turn on the phone by pressing the front upper-right red button on the keypad.
4. The phone will ask for the unlock code.
5. Pull out the stylus at the back of the phone, tap the keyboard icon at the center-bottom of the screen.
6. Enter the unlock code (If you don't have an unlock code yet, you can get in my eBay store), by taping your stylus on the screen keyboard. Then tap OK.
7. Your Palm Treo phone should be unlocked by now.

or

1. Switch ON your phone with allowed SIM card.
2. Go to menu and select "Phone Tool" or "Phone Application"
3. Type on virtual keyboard *#*#CODE# (substitute the word "code" with the unlock code. If you don't have an unlock code yet, you can get in my eBay store)
4. Select with PEN "Number" and phone will show that it's unlocked.

1. Remove Treo battery, unplug cable
2. Insert incorrect a not allowed SIM card (one the phone does not accept)
3. Power on your Treo, “Sim not allowed” is displayed, click “ok”
4. Go to the dial pad, and use the stylus to enter code *#*#CODE#. Then press “Dial”. (substitute the word "code" with the unlock code, which you can get in my eBay store
5. Phone will reset and display “sim lock removed”

Ensure you enter the codes in this manner *#*#CODE# (e.g. *#*#12345678#)

How to Enter Unlock Codes on Palm Centro: 

Troubleshooting:

Error Message: "The SIM Lock has NOT been removed from this phone"

Solution 1: Please make sure you are entering the correct code and enter it using this method *#*#CODE# dial

Solution 2: If the phone says that the SIM lock has not been removed, ensure that the phone radio (wireless mode) is on.

Questions? I'm always here to help. Please contact me through eBay.

Insider-Solutions sells cell phone unlock codes for Cingular, AT&T, T-Mobile, Rogers, and many other GSM network providers including unlock codes for Motorola, Blackberry, Samsung, LG, Sony Ericsson, Nokia, Pantech, Audiovox, Smartphones, Goodlink, Handspring Treo, Palm Treo, Siemens, HP, and PalmOne. We have unlock code instructions for every model we unlock.

We can free your cell phone from "locked phone" messages such as:

• Enter Subsidy Code
• Enter Subsidy Password
• Enter SIM Unlock Code (Simlock)
• Contact Service Provider
• Insert Correct Sim Card
• Wrong Sim Card
• Incorrect Sim Card
• Phone Restricted
• Can't Undo Restriction
• Locked Return For Service
• Enter Unlock Code
• Enter Special Code