Install Huawei modem drivers, Power off device Press the reset button of device + power button The device will start blinking Connect with pc, Open device manager and see Huawei UI interface diag port Now open dc unlocker and check file info of modem.
How to Flash Huawei Zong 4G Wingle Firmware
Extract it into a folder
Plug your Huawei Zong 4G Wingle device.
Run Update firmware as Administrator
It will start updating – DO NOT PLUG OFF your device while updating
The update will take approx 3 minutes once the firmware is updated, Insert any other network SIM and enjoy the Internet, Your Zong 4G Wingle device is now unlocked and ready for all networks.