Xperia tipo is very easy to use. It is recommended especially to people who buy a smartphone for the first time. It contains a specially developed guide configuration, built-in application enabling users to monitor consumption data, powerful battery and the latest Android platform.

What You can find in Sony ST21i ?

Body Dimensions 103 x 57 x 13 mm (4.06 x 2.24 x 0.51 in)
Weight 99.4 g (3.49 oz)
SIM Mini-SIM
Display Type TFT capacitive touchscreen, 256K colors
Size 3.2 inches (~51.9% screen-to-body ratio)
Resolution 320 x 480 pixels (~180 ppi pixel density)
Multitouch Yes, up to 2 fingers
Protection Scratch-resistant glass
Platform OS Android OS, v4.0.4 (Ice Cream Sandwich)
Chipset Qualcomm MSM7225AA
Snapdragon S1
CPU 800 MHz Cortex-A5
GPU Adreno 200


To unlock Sony ST21i we need only IMEI number, rest is written below:

1. go to sim-unlock.net and choose Your Sony model or go directly to unlock by code Sony ST21i
2. press “Unlock Sony ST21i”
3. Choose unlock product for Your Sony ( in some cases only one product is available )
4. Enter your Sony IMEI number and if needed other required information.
5. Press “order code”
6. At shopping cart fill all needed information like name, e-mail and others
7. Pay for an unlock code
8. After average time (check how much it takes for chosen product) You will receive all codes and unlock guide to Your Sony ST21i .

How to enter unlock code to Sony ST21i ?

How to enter a network unlock code in a Sony ST21i:

1. Turn on the phone with an unaccepted simcard inserted (simcard from a different network)
2. Phone should ask for network unlock code
3. Type NCK code in order to unlock the main network like T-Mobile, Orange etc.
Type SPCK code if the phone is locked in a subnetwork like Tesco.

How to check SONY ST21i code counter:

1. Turn on the phone whithout sim card
2. Type *#*#7378423#*#*
3. Select Service info
4. Select SimLock
5. Check where is X
6. If X is on NETWORK, SUBSET or PROVIDER and value is more than 0, you can unlock your phone.
7. If it is 0 unlock by code is NOT possible. The counter is blocked.

If the code counter shows all 0 it cannot be unlocked, because there are no tries left to unlock it.

After unlock Your Sony ST21i You can use it with any sim card.
Unlock code will be sent to email, and your Sony will be permanently Unlocked to work on any GSM Carrier, and you can use any sim card operators such as Movistar, Rogers, O2, Orange, T-mobile, Vodafone, Telenor, Telia, Hutchison, Telenor etc.
After unlocking You can use Your Sony ST21i with sim cards from differents network like vodafone, t-mobile, O2, movistar, orange.
We need Your Sony ST21i IMEI number to unlock it.


Why unlock Sony ST21i and why choose sim-unlock.net ?
– unlock your Sony ST21i without leaving home
– we always inform You how to enter unlock code to Your Sony
– we are cheapest unlocking site over the internet
– can be used each sim card from all world
– there is no risk of damage Your Sony ST21i by unlocking it.
– our support will answer to Your question and problems while unlocking Sony ST21i