Download Click

Heres How you can unlock your Huawei Y600-U20 to any sim provider using Sigma Box Software.

Note:Download the drivers of your from here.

Select "MTK" platform from the tab menu in the upper left side of the software

Go to "Unlock" tab

Turn-Off  the phone

Connect turned off phone to PC with USB cable

Install the drivers

Select Mobistel Cynus T1-CDC Serial in the ports selection tab

Press "Direct Unlock" button

Message "Unlocking phone... Done" indicates that procedure was completed successfully

Disconnect the handset. Remove and reinstall the battery