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Select "Qualcomm" platform from the tab menu in the upper left side of the software
"Phone model" dropdown box has to be set to "Autodetect".
Go to "Unlock" tab
Power the phone ON (ZTE Z222 device should be connected when it’s powered off)
Connect the phone to PC with USB cable
Install required ZTE handset USB driver (only if the phone is connected for the first time); in some cases drivers can be installed automatically
Select USB Modem port in the ports selection tab
Press "Unlock" button *
The message "Unlocking phone... Done" indicates that procedure was completed successfully
Wait for the message "Restarting phone... Done" to appear in Sigma dialog window; only after that you can turn the phone off
DRIVER: https://sigmakey.com/nfs/content/6104/file/ZTE_HS_Driver_SetupV5.2066.1.8.exe
DONE
"Phone model" dropdown box has to be set to "Autodetect".
Go to "Unlock" tab
Power the phone ON (ZTE Z222 device should be connected when it’s powered off)
Connect the phone to PC with USB cable
Install required ZTE handset USB driver (only if the phone is connected for the first time); in some cases drivers can be installed automatically
Select USB Modem port in the ports selection tab
Press "Unlock" button *
The message "Unlocking phone... Done" indicates that procedure was completed successfully
Wait for the message "Restarting phone... Done" to appear in Sigma dialog window; only after that you can turn the phone off
DRIVER: https://sigmakey.com/nfs/content/6104/file/ZTE_HS_Driver_SetupV5.2066.1.8.exe
DONE
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