Quick checks
Try these three basic steps before contacting support to restore your connection sooner.
View the checksChâm Phân App · T2 Tech
Support center
Find help with signing in, connecting your fertigation device, controlling irrigation zones, setting schedules and receiving notifications.
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Quick checks before contacting us
These three steps can resolve many issues caused by a temporary connection problem or selecting the wrong device.
Prioritize safety on site
If the machine or irrigation system operates abnormally and presents a safety risk, stop remote control, press the emergency stop button on the control cabinet and contact technical support.
- Check the connection Make sure your phone has Internet access, the fertigation machine is powered on and its controller is connected to the network.
- Reopen the app and select the correct device Close and reopen the app, sign in again if prompted, and check the name of the selected machine or farm.
- Record the error details Take a screenshot of the error, note when it happened, the device name or ID, and the action you had just performed.
Troubleshooting
Frequently asked questions
Select the relevant situation to view detailed troubleshooting steps.
I cannot sign in to the app
- Check your phone's Internet connection.
- Enter the correct username and password again, paying attention to capitalization and spaces.
- If your account is locked, your access has expired or you have forgotten your password, contact the administrator who provided the account or T2 Tech. The app currently does not offer a self-service password reset.
The app does not show my machine or farm
The list of machines depends on your account's assigned permissions. Sign out and sign in again. If the device still does not appear, send your account name and device name or ID to your administrator or T2 Tech so they can check your access. Do not send your password.
My device is offline or its data does not update
- Check the machine's power supply and network connection.
- Check your phone's Internet connection, then reopen the device screen.
- Wait for the connection to recover before sending more control commands.
- If the data still does not update, note when the connection was lost and contact support.
A control command is not carried out
Only send commands when the device is online and you have the required control permissions. Check the machine status, selected irrigation zone and any error messages. Do not repeatedly send commands while awaiting a response. If the machine behaves abnormally, stop remote operation and check it on site following the safety procedure.
I do not receive device notifications
- Open your operating system settings and allow notifications for the app.
- In the app, select the correct device and enable notifications for that device.
- Check that your phone has Internet access and that notification restrictions or aggressive battery-saving settings are not enabled.
- If notifications still do not arrive, reopen the app to synchronize the notification token, then contact support.
My irrigation or fertigation schedule does not run as expected
Check the irrigation zone, start time, duration, saved settings and the machine's online status. Make sure the time on the controller and your phone is correct. If the schedule still does not run, send a screenshot of its settings, the device ID and the expected execution time to our technical team.
Does the app work without Internet access?
Not fully. The app needs Internet access to sign in, receive real-time status, synchronize settings and send commands to the server. Do not rely on the app for remote control when the connection is unstable.
I want to delete my account and associated data
Visit the Account deletion page to review the data scope and submit a request directly using the form. You do not need to compose an email to start your deletion request.
How does T2 Tech process my data?
You can read about the data categories, purposes, service providers and your rights in our Privacy Policy.
Contact support
Providing enough detail helps our technical team identify the cause and respond accurately.
- Account name or sign-in email — do not send your password.
- Farm name and the name or ID of the affected device.
- Phone model, operating system version and app version.
- When the issue happened, the steps you took and a screenshot of the error, if available.
Support provided by: T2 Tech · Dien Bien Phu Street, Phu Dong Village, Nam Ban Lam Ha Commune, Lam Dong Province, Vietnam.
Page updated: 5 October 2026.