Outdated firmware can cause driver handshake failures. The E5372s firmware is versioned (e.g., 21.200.xx.xx.00). To update:
If you are asked to log in, enter your username (default is admin) and password (default is admin) and then select Log In. HUAWEI E5372 VIVA Factory Password, How To - HardReset.info HUAWEI E5372 VIVA factory password is: admin. HardReset.info Downloading Drivers | HUAWEI Support Global Driver Modem Huawei E5372s
: The Huawei Global Support site provides FAQs for resetting or updating the device software. Downloading Drivers | HUAWEI Support Global Outdated firmware can cause driver handshake failures
Apple does not natively support the Huawei E5372s due to the switch to ARM64 and the deprecation of older PPP drivers. However, workarounds exist: Driver Modem Huawei E5372s