I have a boostmobile simcard and i want to put the tmobile simcard inside the sidekick slide.but when i do it ask me for a special code is there a special code for me to start using it?

You can get the Special Code for your T-Mobile Sidekick SLIDE at low cost from the site Wickedunlock.com here you also need to specify the IMEI number of your phone.Then they deliver the code to you through mail.Using that code you can unlock your phone easily.After unlocking it,you can use freely any GSM Network SIM card on your phone.This is the easy and permanent unlocking method.

i think your phone is asking for unlocking code. you can get the special code for your sidekick slide from Classicunlocking.com

i think your phone is asking for unlocking code. you can get the special code for your sidekick slide from Classicunlocking.com

call tmobile. they have to do it for you.

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.
1.call 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.

i had the same problem when i went to georgia. can you tell me what state your currently in

FLIP THE PHONE OPEN AND PRESS AND HOLD THE MENU KEY WHILE PRESSING L ON YOUR KEYPAD THIS SHOULD BY PASS THAT SCREEN...ENJOY

from the keyguard lock go to emergency calls.
after that press the:

1. menu key (top left hand corner)
2. shift
3. q

More information please :)

Could be the PUK (Pin UnlocK code) which your provider will have. Could be a handset restriction code ie, if you are putting another carriers sim in a phone that is 'locked' to a specific carrier. Again, provider will help you with this on;

OR, could be anything, we really need more info, what screen, what is it asking, what are the surrounding circumstances.

i have the PUK code to unlock t-mobile sidekick slide. buuuuuut, its not free. [email protected] if you would like the code please send $10 through paypal. if not, keep searching to find the PUK code.