Question about T-Mobile Sidekick® 3 Cellular Phone

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Loading problem? I just a sidekick 3 unlocked brand new from a friend.. and when i put my att sim card in there.. its telling me it can take anywhere from 1 hour to 48 hours to load and activate the phone.. Is that what they all do? please someone let me know..

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No that isnt what it should do .
Right when you turn on the phone with
your at&t sim card it should ask for an
unlock code.

Posted on Feb 28, 2009

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I just got an unlocked sidekick lx 2009 and put in my att sim card. I can make calls but it is not reading my contacts. what do i do?


More than likely your contacts are still located in the old phone. Replace the Sim card back into the old phone and copy the contacts onto the Sim card, place back in your Sidekick and you then can locate your contacts.

Mar 11, 2011 | T-Mobile Sidekick ID Cellular Phone

1 Answer

Cant get my sidekick to activate


Let me start by saying I'm not an expert, but after going through a lot of gyrations I came up with a solution that worked for me. I'm sharing it here because I haven't seen a complete concise answer anywhere.
The activation problem with Sidekick Slides is common. Most of the time, people buy a Slide without realizing that you have to purchase a "sidekick plan" from T-Mobile to get it fully activated. These phones were build especially for T-Mobile, so they're designed so that you have to have a Sidekick rate plan first to get the phone activated. By the way, this applies to a new phone as well as a phone that's been activated before, but has been 'hard reset" (where you hold the R button while re-booting.. My advice, DON'T DO THIS! Because you have to re-activate the phone.
However, there's good news for all you non-T-mobile folks who bought a Slide on eBay (or from a friend etc.) only to find it needs activation. Here's the solution. If you search eBay for "sidekick activation" you can find folks selling prepaid activation kits for around $15. They include a sim card and about $10 worth of sidekick prepaid services. Buy the kit, install the sim, and go online to register your phone (registering by phone is a pain with T-Mobile). Online you have 3 plan choices: Pay By The Day, Pay As You Go, and Sidekick. Pick Sidekick, and then provide the requested registration information. When done, your phone should be ready to go and should activate within about 5 - 10 minutes. You'll be charged $1 a day and airtime for calls, so it's not cheap, but at least the phone won't go to the activation screen when you startup.
The next question is, how to unlock the phone for other networks? IF it's not unlocked you will be prompted for special code (this is different than the user-defined password that simply locks the phone against unauthorized users). It won't work on other networks until it's truly unlocked. Again, the trusty folks at eBay can help. I searched for Sidekick Slide Unlock Codes and found numerous vendors, ranging from $6 to $12, who provide permanent unlock codes for Slides. I found on that provides the code via email (others want to mail it to you) and got my code within 30 minutes. So now I can remove the T-mobile sim and put my ATT (or other) sim in and go. I should mention that some of the Sidekick features ONLY work if you have a sidekick plan, but that's T-Mobile's and Danger's devious attempt to make us miserable. Good Luck! Hope this helps! Rick

Sep 13, 2009 | T-Mobile Sidekick ID Cellular Phone

1 Answer

Tmobile sidekick will not activate


try pressing menu (the three bars) and L at the same time. i had an at&t sim card too and that worked.

Aug 22, 2009 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

Sidekick 3 Dont Connect (No Internet neither send messages)


So an unlocked Sidekick on ATT will only be able to do text and phone. The other sidekick features require the t-mobiles sidekick data plan. It is hard coded to the phone

Aug 09, 2009 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

I got a sidekick 3 from a friend i have an att sim card but the phone is locked


Your going to have to call customer service. Thats what my dad did and they unlocked his phone. (:

Mar 03, 2009 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

Unlock Sidekick ID


I found this guide online.
Please let me know if this works!

"1) Insert the ATT SIM card into the back of the T-Mobile Sidekick ID (it should be located behind the battery).

2) Turn on the Sidekick ID, wait for the screens to load.

3) When the screen says "Waiting for Activation", hold the top left button (the "Menu" button with the three lines) on the Sidekick ID and hold the letter "L" on the QWERTY pad at the same time. After a few seconds, let go of the buttons.

4) If Step 3 is done correctly, the Sidekick should be directed to the jumpscreen and display all of the Menu's of the Sidekick ID.

Jul 13, 2008 | T-Mobile Sidekick ID Cellular Phone

2 Answers

Sidekick 3


1. Insert your non-TMobile sim card 2. The phone display says "Enter the code". 3. On your Sidkick, press the "X" button. 4. You will see the menu. 5. Choose the left-up angle button. 6. Choose "setting"--->"network"--->"scan and select manually". 7. The phone will search for your network. 8. When your Sidekick finds your network, you can use the phone to make calls

with other sim cards you cant use data services...t-mobile uses different type of connection from other companies

Jan 31, 2008 | T-Mobile Sidekick® 3 Cellular Phone

20 Answers

Unlock Code for Sidekick 3


ok the way to do it this jus lets u use text and calls i got cingular and i used my sidekick to txt and call here wat u gotta do

1. out sim card in
2. start phone
it will tell u sim card locked it needs special code(the code u get to pay for) juys exit outta that get to the main menu
3.hit the top letf menu button and go all the way down to sim center if u dont allready have a sim pin then enter a new one if u have one change it then ur phone should go from the big X to some bars and a hollow phone icon after you do that hit the menu button again and go to network options then go down and hit (SCAN AND SELECT MANULLY) then chose what ever carrier you have i have at&t so i chose it after a few seconds the hollowed out phone icone should be colored in and u can now text and call

Dec 03, 2007 | T-Mobile Sidekick® 3 Cellular Phone

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