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How can I enable the FITBIT_QA_COMMANDS environment flag on my Fitbit Versa 4


Enabling the `FITBIT_QA_COMMANDS` environment flag on your Fitbit Versa 4 is a step typically used for development purposes, such as building and sideloading third-party applications. Here's a detailed guide on how to do it:

Step 1: Enable Developer Bridge on Your Fitbit App

1. Open the Fitbit App on your phone.
2. Navigate to Account > Your Device (in this case, Versa 4).
3. Tap on Developer Menu.
4. Toggle on Developer Bridge and wait for the "Waiting for Studio" status.

Step 2: Enable USB Debugging on Your Fitbit Versa 4

1. On your Fitbit Versa 4, go to Settings.
2. Navigate to Developer Bridge.
3. Toggle on USB Debugging. This will require a reboot of your watch.

Step 3: Set Up Your Environment

1. Connect your watch to a charger to ensure it doesn't run out of power during the process.
2. Open a terminal or command prompt on your computer.

Step 4: Enable FITBIT_QA_COMMANDS Environment Flag

1. In the terminal, type the following command to enable the `FITBIT_QA_COMMANDS` environment flag: 
bash
   export FITBIT_QA_COMMANDS=1

2. Optionally, you can also enable the `FITBIT_DEVBRIDGE_DUMP` flag for debugging purposes by running: 
bash
   export FITBIT_DEVBRIDGE_DUMP=1

Step 5: Connect and Build Your App

1. Use the Fitbit SDK or a similar tool to connect your phone and device.
2. Run the necessary commands to build and install your app. For example, if you're using a setup similar to the GitHub repositories mentioned, you might run: 
bash
   yarn debug

Followed by connecting your phone and device, and then running: 
bash
   fitbit$ connect phone
   fitbit$ connect device
   fitbit$ build-and-install

This process allows you to sideload apps and use developer features on your Fitbit Versa 4. Remember, these steps are for development purposes and may require additional setup depending on your specific project or environment[1][2].

Citations:
[1] https://github.com/chrisjohgorman/fitbit-planets
[2] https://github.com/cmengler/fitbit-app-versa4
[3] https://www.reddit.com/r/fitbit/comments/197qelj/fitbit_exercise_screen/
[4] https://www.youtube.com/watch?v=iwRdxKvZin0
[5] https://community.fitbit.com/t5/Versa-4/Versa-4-stuck-on-Fitbit-logo-and-a-red-X/td-p/5599099
[6] https://support.google.com/fitbit/answer/14237125?hl=en
[7] https://documents.4rgos.it/v1/static/1153729_R_D001
[8] https://media.croma.com/image/upload/v1686496760/Croma%20Assets/Communication/Wearable%20Devices/User%20Manual/263858_User%20Manual.pdf