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How To Unlock a Palm Treo 600, 650, 680 Cell Phone

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How to Enter Unlock Codes on Treo 600, 650 and 680 Cell Phones:

-Remove Treo battery,

-Insert incorrect SIM card (Any simcard that the phone does not accept)

-Power on Treo, ‘Sim not allowed’ is displayed, click OK

-Go to the dial pad, and use the stylus to enter MEP code . You must enter the code in the following fashion:
*#*#(MEP-CODE)# then press dial (Where (MEP-CODE) is to be replaced by the ACTUAL code supplied by the unlocking software).
For example if the software supplied 12345678 as your MEP code for your phone , you must enter the code as follows:
*#*#12345678# , then press dial

Again the above numeric code is for illustration purposes, please enter the MEP code as supplied by us. Phone will reset and display sim lock removed

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.

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