Flashing TM-AC1900 to RT-AC68U/P ~ Bay Area Tech Pros
Fetch FTP Flash a $50 router to a $160 router with this step by step guide. This is the simplest guide for flashing a T-Mobile TM-AC1900 to an Asus RT-AC68U or RT-AC68R. Steps are included for AiMesh. And there's hundreds of comments to help with potential troubleshooting.