Credits hovatek forum This is a step-by-step guide on how to unlock Huawei E5573Cs -322 / 609 / 931 MiFis. These types of MiFis do not support unlocking by generating NCK code using IMEI so you’ll need to unscrew the modem down to the board for a bootshot.
This guide doesn’t seem to work on devices running on the latest firmware versions i.e 21.326.xx, 21.327.xx, 21.328.xx and it doesn’t work on the Huawei E5573Cs-933 model
Why would I want to unlock my MiFi?
You might have purchased a branded MiFi which would normally be locked to a single network. This does not mean it can’t support SIMs from other networks. The process of unlocking enables you use the MiFi on other networks’s SIMs so you can switch at will depending on your budget and location.
How to unlock the Huawei E5573Cs – 322 / 609 / 931 Mifi
The steps below explain how to unlock the Huawei E5573Cs -322 / 609 / 931 Mifi
Visit the original interface and take note of details of the MiFi device (e.g SN, IMEI, Network APN / Profile settings etc)
Remove the sim and battery from the device
Extract the Swift-E5775 iso using 7zip then run Autorun.exe or setup.exe in MobileWIFI folder (it will install the necessary drivers)
Dismantle the device down to the motherboard
Connect the battery but don’t power on the device
Boot shot the device by touching the wire to the two points in the image below
Without removing the wire used to bootshot from the motherboard, connect the device to the PC via USB. The device should be recognized by the PC (once the PC detects the device, you can remove ONLY the wire used to bootshot).
Launch balong USB downloader
Click on detect > the device should be detected and labeled
Click on the small box labeled as “…”, in the new window that opens, locate the usbloader-5573cs-322.bin (or E5573cs-921_usbloader if you have the Cs-931 model) file and select it
Click on Load and allow the procedure to complete.
Once the process is complete, you should see the progress bar at 100% (do not disconnect your device from the PC)
Now immediately launch the E5573cs_Update_21.318.99.03.00.exe file
In the window that opens, click Next and allow the update process to complete
Once successful, you should see the update successful message
Now immediately launch and also flash the Update_WEBUI_17.100.15.01.356_MRE5
Once successful, launch and flash the E5573cs_Update_21.318.03.00.00
At this point, the device should be unlocked and usable but without a valid IMEI and SN number
If you used the Idea 4G dashboard and you encounter an error while trying to install, simply use the default huawei dashboard provided in the link above
If after following the entire procedure and your device seems bricked (i.e blinking the two green lights) , then simply install the E5573cs_Update_21.318.03.00.00 firmware again then restart your device. The device should now work properly.
The default WiFi password after unlock is 12345678 . If this doesn’t work then power on the MiFi and connect to PC via USB. This will enable you access dashboard where you can reset WiFi key
After flashing usbloader successfully, the reset button on the mifi will no longer work