Question about T-Mobile BlackBerry 7105t Cellular Phone

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I bought a used Blackberry 7105t on ebay and all I am getting when I put my sim card and battery in is Device Error:400 Reset. I was told by the seller that it is unlocked. Can anyone help me?

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Hi, I had that error , you need to reload the os as it got corrupted,

http://www.blackberryforums.com/rim-software/1871-blackberryos-4-x-download-faq-upgrade-downloads.html

Contains links to download the required software.

Regards
GeWiz.

Posted on Dec 11, 2009

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1 Answer

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You can get the Mep unlock code for your Blackberry 7105t phone from UnBBLock.com here you need to specify your country,IMEI number of your phone.Then they deliver unlock code to you through mail with unlocking instructions.Using this you can unlock your phone from Network lock easily.

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have you inserted the right sim card network if you have you will probably need to get the software put back on as it could have been formated

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Try to disable network lock. This may be the cause. Call service provider.

Aug 26, 2009 | T-Mobile BlackBerry 7105t Cellular Phone

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remove the battery and let the phone sit for one minute and put the battery back in.
your phone will do a full boot and it should be fine.
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Sounds like the unit is locked or forbidden to work with your phone company. Ask the ebay seller which phone company the phone was bought from and contact them. They can provide you the code you need for a fee (if this is the situation).

-J.

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only the maufacture can help you with this....call t-mobile. they will be able to submit a request to RIM and you will be able to use the phone in india. once you have the code, select Tools., then go into Settings , select SIM Card.and verify that the phone number and SIM ID number displays.

Type 'meppd' then Type 'mepp2 'to display the dialog box asking for the unlock code. once 10 attempts to enter the correct code have been made, press the Enter key and Powercycle the handheld.

Feb 10, 2008 | T-Mobile BlackBerry 7105t Cellular Phone

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