Which version of TNAS mobile should be installed on a system running TOS 5?
Problem Description
Because TOS system updates involve substantial changes, the client cannot be fully compatible with every system version. Therefore, when the latest version only supports TOS 6 and TOS 7, which version of TNAS mobile should I install on a system running TOS 5?
When the installation package does not match the system version, the following occurs:
- After downloading the latest version from the App Center, TNAS mobile cannot log in to the TOS system (TOS 5);
- The app prompts "Login failed! Your TOS system version is too old and is not compatible with the current TNAS mobile version. Please upgrade the system and try again.";
Solution
Step 1 — Confirm the TOS System Version
Summary: The system version determines which installation package to install.
On the TOS desktop, open Control Panel, go to "System Info", and check the "System Version" line.
You can also confirm this from the message "TOS system version is too old" shown when logging in with TNAS mobile.
Step 2 — Download the Client According to the System Version
Summary: Choose the corresponding installation package based on the system version, not based on which version number is higher.
Latest Version
For TOS 6, TOS 7 and later versions
Scan the QR code or click to download now
TOS 5 Compatible Version 3.4.045
For TOS 5, also works with TOS 6
Scan the QR code or click the Download Now button
There is no supported version for TOS 4. TOS 4 has reached the end of maintenance, and due to compatibility limitations TNAS mobile is no longer adapted or supported. We recommend upgrading your system.
Step 3 — Install the Client
Summary: Before installing, first confirm whether another version of the client is already installed on the device.
On Android devices, the two versions cannot be installed at the same time. If one of them is already installed on the device, uninstall it before installing the other; otherwise an overwrite installation or installation failure will occur.
iPhone is not subject to this restriction, and both versions can be installed at the same time.
Step 4 — Log In and Confirm Availability
Summary: Being able to log in normally means the installation package matches the system version.
After the installation is complete, open TNAS mobile and log in to your device to confirm that you can connect to the device and access data normally. If it still cannot be opened or you cannot log in, go back to Step 1 to re-confirm the system version, and check whether the installed client matches the system version.
Note
- After upgrading the system from TOS 5 to TOS 6, you can choose to continue using version 3.4.045; we recommend installing the latest version of TNAS mobile.
- To roll back from the latest version to 3.4.045 (the TOS 5 compatible version), you need to first uninstall the current client and then reinstall it. The related configuration will be cleared as well, and you will need to log in and configure it again after installation.
- 3.4.045 (the TOS 5 compatible version) is an installation package with a fixed version. Its functions remain as they are, it will no longer be updated, and no separate fix versions will be released. If the device can be upgraded, we recommend upgrading the system to TOS 6 or later and using the latest version of the client.
- TOS 4 and earlier versions have reached the end of maintenance, and due to client compatibility limitations, they are no longer adapted or supported.
- The version listed in the App Center is the latest version, applicable to TOS 6, TOS 7 and later versions. If your system is TOS 5, please use the 3.4.045 installation package provided by the QR code on this page, the official download page, or the Download Center.