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Need to unlock a blackberry pearl from ATT/cingular but it is reading bad sim card

I have a blackberry ATT/cingular blackberry phone that is locked to the ATT network however i need to unlock it and use it on the centennial network how would I unlock it. I have tried one service alread and then they claimed that the unlock code for the IMEI is not in the server because it is not supposedly registered so i had to fight to get our money back and now we still are waiting on getting our money and do not want to pay to get another number in fear of going broke trying to unlock this phone we already paid alot of money for. How would I do this?

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Posted on Jan 02, 2017

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SOURCE: I need to unlock a cingular phone for centennial service

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You can try online at www.unlock8800.com, www.mobile2mobile.net, www.unlockitnow.com or take the phone to a mobile service center and have them unlock it for a small fee.

Unlocking is not a free service

Posted on Jun 22, 2008

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Posted on Aug 17, 2011

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SOURCE: have LG900G tracfrone want to switch it to ATT

Hello, you can't simple change your old sim card with new sim card from another mobile provider without unlocking your phone first. You can request LG 900G unlock code from tracfrone and you must pay some bucks (up to $80) and wait for a couple of weeks before you get that unlock code. If you on tight budget or you want to saving up your money, you can buy lg unlock code from third party sites and you don't need to wait until a couple weeks to get that code. Just in a few minutes.

Posted on Sep 03, 2011

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3 Answers

I need codes to unlock a blackberry pearl mobile phone locked to O2*


you can Unlock your Blackberry pearl with imei unlock code. it is very simple and eaisiat way to unlock your Blackberry pearl. get your Blackberry pearl Imei Unlock Code . and use any gsm sim card.
i hope this will help you .

Dec 17, 2011 | RIM BlackBerry Pearl 8100 Smartphone

3 Answers

I just unlocked a blackberry 8100 from t mobile to use on the att network and the t mobile sim still works with my phone however when I put the att sim card into the blackberry I get a message on the phone...


It hasn't been unlocked, try again and follow these instructions:

Model : T-mobile BlackBerry Models
1 – On the Home screen, click the Tools icon. The Options screen appears.
2 – In the tools screen, select the Settings icon.
3 – Scroll to SIM Card and select it. You should see the phone number and the SIM ID number.
4 – Type ‘mepd’ to display the first five levels of SIM locking.
T-Mobile uses network locking so the Network should display Active. All other states should display Disabled
Please note: For the Blackberry 7100t you will hit the “P” twice when entering the ‘mepd’ and ‘mep2′ for steps 4 & 5.
5 – Type ‘mep2′ to display the dialog box asking for the unlock code (Press the Alt + 2 key to get the number 2)
6 – Input the Network Unlock code
7 – Press ENTER and reboot handheld.
Model : BlackBerry Pearl 8100 (Alternative instructions if above instructions do not work)
Can be done without a sim card inserted
To Unlock:
1 – While on the home screen, click the “blackberry key” on keyboard, then select “options”.
2 – Choose “Advanced Options”.
3 – Select “Sim Card”
4 – There is no area to type these letters, you just type them as instructed. No need to hit keys twice to get a letter either. Type m e p p d to display the first five levels of SIM locking. Most companies use network locking so the Network should display Active. All other states should display Disabled ( you will not see text appear on screen
while typing )
5 – Type m e p p 2 to display the dialog box asking for the unlock code
(Press the Alt + 2 key to get the number 2) ( you will not see text
appear on screen while typing )
6 – Input the SIM Unlock code
7 – Press in the trackball in once
Your phone is unlocked

Jun 25, 2010 | RIM BlackBerry Pearl 8100

4 Answers

Sim card invalid. what do i do (balck beery pearl 8100)


it needs an unlock code. you may have to purchase one or ask your provider for one. the procedure on how to enter it and where to purchase it can be found here.

Mar 17, 2010 | RIM BlackBerry Pearl 8100

2 Answers

If i buy a blackberry 8700c for cingular or att


Hello,

Yes you can.
I am currently using my blackberry in Portugal although I bought it in the UK.

If the telephone is really unlocked you could insert any SIM card from any carrier.

Hope it helped.

Nov 18, 2009 | RIM BlackBerry 8700c Cellular Phone

1 Answer

I am trying to put my AT&T Sim Card on a Blackberry Pearl that I brought from my home country Ecuador. I get a message that says searching for network, then it finds cingular network, but then says...


You will need to wipe the device (wipe handheld in the setting menu) and reload the BB software specifically designed for ATT phones from there website. It is probably finding Cingular because they were merged with ATT.
https://www.blackberry.com/Downloads/entry.do?code=577BCC914F9E55D5E4E4F82F9F00E7D4
select your BB model and the lateset software version. Press next, then download and install it using the Desktop Manager Application Loader. You should download 4.7 of that too.

Aug 23, 2009 | Cell Phones

3 Answers

Blackberry pearl 8100 tmobile, with cingular sim


The MEP code is the same thing as a subsidy unlock code.The codes are specific to each IMEI. Meaning at&t could not unlock a T-mobile device and vice versa.You first need to find out which carrier has locked it to their network, then call them and ask for the code. I am not sure what the other carriers do, but at&t will unlock a phone bought from a third party as long as it is either a new at&t device (att in lower case) or a Cingular device and the IMEI does not appear on an active account, whether it be in write-off status or not.

Aug 18, 2009 | RIM BlackBerry Pearl 8100

1 Answer

I have a t mobile blackberry pearl my sim card is Att


sorry but the only way thatt it could possibly work is if you got blackberry unlocked for any gsm network but even on a prepaid service with the blackberry you lose the privilage of internet,picture message,and email.

Apr 06, 2009 | RIM BlackBerry Pearl 8100

22 Answers

Free unlock of blackberry pearl 8100


Option # 3: T-Mobile or Cingular, your carrier
Yes, you can ask your carrier for an unlock code for your Blackberry and guess what, they do it for it Absolutely FREE. So, what is the catch? The only condition which atleast T-Mobile imposes on its customers before it gives out the unlock codes for the Blackberry Pearl or any other cell phone is that you have to be under the contract for atleast 90 days or 3 months before they can give you the unlock code. So, if you have the patience, I would recommend that you wait for this 3 month time frame before calling up 611 from your T-Mobile phone, talk to customer service and get your unlock codes.
In my search for the Blackberry Unlock codes, I found out that a lot of people mess up before they have no idea how to enter the unlock codes correctly. So, follow this method to enter your Blackberry Unlock code
How To Enter the Unlock Codes on a BlackBerry Cell Phone

422851199_3d16b31e6c_o.pngModel : All BlackBerry Models (except T-mobile)
1 - Using the menu go to Settings Menu -> SIM card press select.
2 - While holding the SHIFT key, type MEPD or (MEPPD for Vodafone Handsets)
3 - You should now see the five locking categories listed.
4 - While holding the SHIFT KEY, type MEP2 or (MEPP2 for Vodafone handsets)
5 - Release the shift key.
6 - You are now prompted to enter the Network MEP code (it will also state how many attempts left)
7 - Enter the code
8 - Enter Return/Enter
9 - The device should then be unlocked
Model : T-mobile BlackBerry Models
1 - On the Home screen, click the Tools icon. The Options screen appears.
2 - In the tools screen, select the Settings icon.
3 - Scroll to SIM Card and select it. You should see the phone number and the SIM ID number.
4 - Type ‘mepd’ to display the first five levels of SIM locking.
T-Mobile uses network locking so the Network should display Active. All other states should display Disabled
Please note: For the Blackberry 7100t you will hit the “P” twice when entering the ‘mepd’ and ‘mep2′ for steps 4 & 5.
5 - Type ‘mep2′ to display the dialog box asking for the unlock code (Press the Alt + 2 key to get the number 2)
6 - Input the Network Unlock code
7 - Press ENTER and reboot handheld.
Model : BlackBerry Pearl 8100 (Alternative instructions if above instructions do not work)
Can be done without a sim card inserted
To Unlock:
1 - While on the home screen, click the “blackberry key” on keyboard, then select “options”.
2 - Choose “Advanced Options”.
3 - Select “Sim Card”
4 - There is no area to type these letters, you just type them as instructed. No need to hit keys twice to get a letter either. Type m e p p d to display the first five levels of SIM locking. Most companies use network locking so the Network should display Active. All other states should display Disabled ( you will not see text appear on screen
while typing )
5 - Type m e p p 2 to display the dialog box asking for the unlock code
(Press the Alt + 2 key to get the number 2) ( you will not see text
appear on screen while typing )
6 - Input the SIM Unlock code
7 - Press in the trackball in once
Your phone is unlocked

May 05, 2008 | RIM BlackBerry Pearl 8100

2 Answers

Unlock my blackberry 7290


Like you being with T-mobile, I bought a cingular phone off ebay that wasn't unlock. My sims didn't work either. My network just said call Cingular which is now AT&T and they gave me the MEP code to unlock it. Beware, you need to confirm all of your information from your network before they will help you.

Feb 20, 2008 | RIM BlackBerry 7290

1 Answer

Cell Phone


I have the same question. I just bought the RIM Blackberry and my SIM card doesn't seem to want to stay in the phone.

Jan 04, 2008 | Nokia 1600 Cellular Phone

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