OT-5020a unlock DONE!!!
Select "MTK" platform from the tab menu in the upper left side of the software
Go to "Unlock" tab
Turn the phone off
Connect turned off phone to PC with USB cable
Install drivers for all devices that will appear in the system; reconnect the smartphone
Drivers for Alcatel MTK smartphones
Drivers for ZTE MTK smartphones
Please make sure that you install apropriate Preloader and CDC port drivers for Alcatel and ZTE smartphones, because they are different
Important: use drivers from Sigma Support Area only!
Select Android Gadget VCOM 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
Select "MTK" platform from the tab menu in the upper left side of the software
Go to "Unlock" tab
Turn the phone off
Connect turned off phone to PC with USB cable
Install drivers for all devices that will appear in the system; reconnect the smartphone
Drivers for Alcatel MTK smartphones
Drivers for ZTE MTK smartphones
Please make sure that you install apropriate Preloader and CDC port drivers for Alcatel and ZTE smartphones, because they are different
Important: use drivers from Sigma Support Area only!
Select Android Gadget VCOM 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