Question about T-Mobile Sidekick® 3 Cellular Phone

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Sidekick 3 sim not ready? help

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Re: sidekick 3

I can replace the sim port on your sk3 for $35 then it will read your sim



email me at

Posted on Oct 19, 2007

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I turned off my sidekick lx 2009 (off button) and it wont turn on

what i did was take out my sim charg it den cut it on it will cut on put sim bak in afta u cut it off and try again do a couple of time it will work

May 04, 2010 | T-Mobile Sidekick® 3 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

11 Answers


yes, tmobile does unlock the sidekick 2008 for FREE!!. i promise you this works, i just did this today, the agent told me that they dont usually advertise it.
So here are the steps. tmobile but dont ask the first representative to unlock it.
2.ask him or her to transfer you too customer care.
3.then ask the customer care agent for the SIM SUB SIBY unlock code.
4. he or she will ask you for the IMEI number, if you dont know that number, just dial *#06# or you can find it on the back of your phone under the battery. IMEI number is a 15 digit code.
this will let you use your sidekick 08 in another country.

Apr 18, 2009 | T-Mobile Sidekick® 3 Cellular Phone

6 Answers

Unlocking sidekick 3 special sim code lock !!!

Hi my name is femi, am from nigeria... i have a tmobile sidekick3, any time i on it, it has for code to unlock device...but when i insert sim it has for code to use the t-mobile service..have bein trying to unlock the phone but i dont get the code. i will be glad if my problem can be email is...femifamous2007@yahoo;com.......... wating to here from you asap... am still wating to here from you cos i need it now.....

Jul 19, 2008 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer


you might want to try a soft restart by holding the "@" button, 1, and 0 all at once. it usually helps

Jul 06, 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

10 Answers

Installing sim card in sidekick II

hello, hope these instructions help: 1. To expose the SIM card slot, peel back the bumper from the top-left edge of the device. (fig 1) 2. Insert the SIM into the slot with the gold contacts facing forward and the cut corner facing out. (fig 2) 3. When you release the SIM, make sure it is locked into position behind the catch so it will not spring out. 4. Replace the bumper and turn on the device. Any problems, let me know :) Si

Oct 03, 2007 | T-Mobile Sidekick ID Cellular Phone

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