== How to update the firmware in TellStick, TellStick Duo and TellStick Net ==

TellStick must be from batch 11 or later to support upgrades.
All batches of TellStick Duo and TellStick Net support upgrades.
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=== TELLSTICK NET ===

Download and run the TellStickNetFlasher-utility.[[BR]]
Windows: [http://download.telldus.com/TellStick/Software/TellStickNetFlasher/TellStickNetFlasher.zip][[BR]]
Max OS X: [http://download.telldus.com/TellStick/Software/TellStickNetFlasher/TellStickNetFlasher.dmg][[BR]]
For Linux users, the windows version run well in Wine. If you only run CLI, you may find assistance in this guide:[[BR]][wiki:How_to_restore_a_bricked_TellStick_Net "How to restore a bricked TellStick Net"]
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=== TELLSTICK and TELLSTICK DUO ===

Please see below for your operating system.

=== Windows XP ===

The service running must be stopped in order for the flasher utility to see the TellStick.[[BR]]
Open "Services". You find it under:[[BR]]
Start menu -> (Control panel) -> Administrative Tools -> Services[[BR]]
Find "TelldusService" in the list and press "Stop Service".[[BR]]

You can now run the flasher utility, TellStickFlasher.exe, from the TelldusCenter installation directory.

=== Windows 7 ===

The service running must be stopped in order for the flasher utility to see the TellStick.[[BR]]
 1. Open the control panel from the start menu[[BR]][[Image(ctrlpan.PNG)]][[BR]][[BR]]
 1. Select "System and Security" and then "Administrative tools"[[BR]][[Image(sysandsecurity.PNG)]][[Image(admtool.PNG)]][[BR]][[BR]]
 1. Double click "Services" in the new window[[BR]][[Image(services.PNG)]][[BR]][[BR]]
 1. Scroll down to "Telldus Service", right click it and click "Stop"[[BR]][[Image(stopservice.PNG)]]

You can now run the flasher utility, TellStickFlasher.exe, from the TelldusCenter installation directory.

=== Mac OS X ===
Open the terminal.
Run the following command:
sudo launchctl unload /Library/LaunchDaemons/com.telldus.service.plist

You need to enter your password.

Now you can run the flasher utility, which can be downloaded here:[[BR]][http://download.telldus.com/TellStick/Software/TellStickNetFlasher/TellStickNetFlasher.dmg] (yes, despite its name it works for TellStick and TellStick Duo too)

=== Questions ===
Q: I lost the power while flashing my TellStick Net and now it is bricked, what can I do?[[BR]]
A: Don't worry. It will probably be possible to fix it without sending your device to us. [wiki:How_to_restore_a_bricked_TellStick_Net "Please see our guide"].

Q: I have updated the firmware in TellStick Duo, but want to downgrade again. How do I do that?[[BR]]
A: Download an older firmware ([http://download.telldus.com/TellStick/Software/firmware/]), stop the service as described above, drag-and-drop the .hex-file to TellStickFlasher.exe (located in your TelldusCenter installation folder), and follow the instructions.