If everything goes smoothly, the release is expected in the second quarter of 2025. The actual release date will be based on the forum announcement. Please be patient and stay tuned to our forum.
TOS 5.1.73 (ARM) is Released for Update
Re: TOS 5.1.73 (ARM) is Released for Update
To contact our team, please send email to following addresses, remember to replace (at) with @:
Technical team: support(at)terra-master.com(for technical support)
Service team: service(at)terra-master.com(for purchasing, return, replacement, RMA service)
Technical team: support(at)terra-master.com(for technical support)
Service team: service(at)terra-master.com(for purchasing, return, replacement, RMA service)
Re: TOS 5.1.73 (ARM) is Released for Update
I bought an used F2-210, the current app on the App store doesn't work. Is there anyway I can get the previous TNAS Mobile app OR I am doomed 
Re: TOS 5.1.73 (ARM) is Released for Update
Hello, after confirmation, the TNAS mobile (iOS app) for the TOS4 system has been removed from the App Store since the end of April. If you wish to continue using its features, we recommend upgrading to the new TOS system or hardware and downloading the new TOS app. The new system and application will provide you with a superior and more stable user experience. Don't wait, take action now!
To contact our team, please send email to following addresses. "(at)" = "@"
Technical team: support(at)terra-master.com
Service team: service(at)terra-master.com
Technical team: support(at)terra-master.com
Service team: service(at)terra-master.com
- crisisacting
- Silver Member
- Posts: 500
- Joined: 20 Jan 2022, 16:42
Re: TOS 5.1.73 (ARM) is Released for Update
It's been available as a beta test for quite a while @ viewtopic.php?t=7888 & per the thread, it's currently getting final adjustments for an official release.


