Question about T-Mobile Sidekick® 3 Cellular Phone

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HELP ME PLEASE

I BOUGHT A UNLOCKED SIDEKICK 3 FROM EBAY BUTIT WON'T ACTIVATE WITH MY UNICEL SIM CARD! WHAT CAN I DO TO FIX IT?

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  • T-Mobile Master
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Its might still locked try this site

Posted on Aug 14, 2008

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1 Answer

I bought a tmobile sidekick from ebay. It says its unlocked but when sim card is inserted it asks for sim pin. what do i do?


It's Because of the Network Lock,It's not Unlocked 100% you need to Unlock it,You can get the Unlock code and Instructions at
http://www.wickedunlock.com/sidekick/rs11wp8/ and Unlock it.

Mar 18, 2011 | T-Mobile Sidekick II

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

How do you activate an unlocked Sidekick 3?


I have the same problem. But it says it could take up to 48 hours for the Welcome screen to appear. (Usually wouldn't take that long, usually it'll take about 1-3 hours)

Jun 25, 2009 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

Needs to be registered, been waiting 4 the activation screen to finish, been almost 3 days..


you have to go to and authorized t mobile retailer to register your phone or to activate it.

May 16, 2009 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

Loading problem?


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.

Feb 28, 2009 | T-Mobile Sidekick® 3 Cellular Phone

3 Answers

How do you unlock a sidekick 2008 ??


Hello.. I live in denmark and I just got the sidekick 2008.
I bought an Isim (ver. 2) on ebay. I payed $9.
Then I put It under my non tmobile sim card and powered it up and I could se my phonebook and other stuff from my sim. But it keept saying: emergency calls only.
Then you have to put it into a nother mobile phone to get signal. Then put it back in the SK with the Isim and then it works. Just remember to update the sim and phone with the settings from your current phone company by sms. Then it wont happen again.

It worked for me. so I hope it would help others...

Form Diana - Denmark

Nov 23, 2008 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

Sidekick 3


i have to put a code so i can activate the sim card..but i dont now who to pu it and what code i have to put so help me ..or send me a code

Aug 09, 2008 | T-Mobile Sidekick® 3 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

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