Software updates for HTV devices aren't just about new aesthetics; they often include critical security patches and updated server links. Version 3.7.1 specifically addresses:
We strongly recommend researching your IPTV provider’s legitimacy before completing the process. Htv 3.7.1 Register
This points to a write-permission issue. Ensure Htv 3.7.1 has storage permissions. If the problem persists, manually save your credentials and use the “Auto-Login” feature in settings. Software updates for HTV devices aren't just about