it's not working for me

The mobile app built using QT hybrid application and we are not able to get it work using any of the following methods:

Agent::isMobile()
Agent::isTablet()
Agent::isAndroidOS()

The only method work is Agent::isDesktop() when sending the request using postman.

This is the current User-Agent value sent from the QT app : Mozilla\/5.0
Any idea?

Do we have to setup the QT app to send some details about the user?

Thanks.

Start at the Agent::isMobile(), Agent::isTablet(), and Agent::isAndroidOS() entry points and reproduce the request using the Qt User-Agent value Mozilla/5.0, comparing it with the Postman request. No file or test is named; done should be a confirmed explanation of why only Agent::isDesktop() matches, with the required request details or a clearly scoped parser change identified.

Written by the indexing model from the issue text.