I just want to unlock my t-mobile sidekick 3 the old gsm handset

You can get the Unlock code for Sidekick 4G phone at
Theunlockspot.com/sidekick-4g/rs10wp9/ and Unlock it from network lock and use with any Mexican gsm network sim.

Hi visit Superunlockcodes.com to unlock your Samsung sidekick 4g mobile from network lock .Here they ask you the network name to which your mobile is locked and the IMEI number of your mobile .Then at last they deliver you code to unlock your mobile.

T-Mobile Sidekick 4 and Sidekick 4G are same.You can cannot get The free Unlock code for the Mobile Phone.You need to pay for it.Free Unlock code is Possible to get for the OLD Nokia DCT Phones.You can get the unlock code at reasonable cost at Mobileunlocksolutions.com/sidekick-4/rs1wp9/ and Unlock it easily.

You can unlock the Sidekick LX from Jamica Network digicel using the Unlock code ,you can get the Unlock code within 0 to 5 Hours(approx) you can get the code at reasonable cost here Simpleunlocking.com and Unlock it ,then you can use it with any GSM Network Sim card....Follow the instructions below and Unlock it step by step...

Sidekick LX Unlocking InstructionsWarning : Do not enter any wrong unlock codes on your Sidekick LX mobile phones. If you enter over a certain amount of wrong unlock codes on your Sidekick LX mobile phone, your phone may get hard locked and sometimes become unusable.
1. Switch ON your Sidekick LX with a Not ACCEPTED SIM Card.
2. If your Sidekick LX asks for a PIN code, then enter your SIM card PIN and press OK.
3. Sidekick LX will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your Sidekick LX is now unlocked.

*NOT ACCEPTED : We mean, to use a Sim card from a network other than the network your Sidekick LX is locked to.

The sidekick from T-mobile is unlock-able with IMEI or MEP unlock code, I run a mobile shop and recently unlocked 5 of these sidekicks this month. You can get your code online, its very easy and takes couple of seconds to enter the unlock code and have your phone free from restriction. Not to mention once unlocked you can use it ATT or any other GSM network. You can get your code from here.

The sidekick from T-mobile is unlock-able with IMEI or MEP unlock code.
You can get your code online, its very easy and takes couple of seconds to enter the unlock code and have your phone free from restriction. Not to mention once unlocked you can use it ATT or any other GSM network in Guyana. You can get your code from here.

What network is it locked to? anyways Sidekicks is now unlock-able with IMEI or MEP unlock code,I run a mobile shop and recently unlocked 5 of these sidekicks thismonth. You can get your code online, its very easy and takes couple ofseconds to enter the unlock code and have your phone free fromrestriction. Not to mention once unlocked you can use it ATT or anyother GSM network. You can get your code from here.What country are you in? if in US I am sure its with Tmobile? if yes! you care lucky its unlockable as well

i don't have a card but my sidekick sim is block gsm card

The Sidekick 3 is quad-band GSM (850/900/1800/1900 MHz) - so it should work fine in most places in the ME - Kuwait uses 900/1800MHz GSM, so it will certainly work there. It doesn't support any kind of 3G, though.

The only thing you need to watch for is that every sidekick I have ever seen was locked to T-Mobile, so if you want to use a local SIM card in it, you will need to get it unlocked. You will also need to get the network settings correct for your local operator, since a sidekick with no data connection is not very useful.

Its different per unit you r best bet is to check online for an unlocking service