Ensure you are using the correct tunnel app for which the file was created.
This will help me give you more tailored, safer instructions. Mobilink and Telenor Internet Settings | PDF - Scribd
To make sure you're using the right method, can you tell me: Download Telenor File tnl
Obtain the Telenor-specific .tnl configuration file from a reliable forum or Telegram group. Import the File: Open the Tunnel App.
Send a blank message to 131 to receive auto-configuration settings. Ensure you are using the correct tunnel app
Configure manually by going to Settings > Mobile Networks > Access Point Names and entering: Name: Telenor Internet APN: internet Username: Telenor Password: Telenor Troubleshooting .tnl Files
If it is not a config file, it may be an old, obsolete image thumbnail format. Import the File: Open the Tunnel App
A "Telenor .tnl" file is often associated with configuration files used in third-party VPN tunnel applications (like Open Tunnel or TLS Tunnel) to access free or specific internet packages. These files are not official Telenor files, but rather community-created configurations used for networking tricks.