How to solve the problem "APP does not have permission to operate this product" when binding or controlling a device with a mini program?

The error message "APP does not have permission to operate this product" when binding or controlling a device with a mini - program usually occurs due to several reasons.

Explanation of possible causes

Lack of proper authorization in the code: The mini - program code may not have requested the necessary permissions correctly. For example, when trying to access a device's functions, the relevant API calls may not have included the correct permission settings.
Insufficient permissions in the cloud platform: If the device is managed through a cloud platform, the mini - program may not have been granted the appropriate permissions on the cloud side. This could be because the device owner has not set the correct sharing or access rules for the mini - program.
Device - side restrictions: The device itself may have security settings that prevent the mini - program from operating it. For instance, the device may only allow certain pre - approved applications to control it.

Solutions

Check and modify the code permissions:
- Review the code of the mini - program to ensure that all necessary permissions are requested. For example, if you are using a Bluetooth device in the mini - program, you need to make sure that the Bluetooth permission is requested correctly. In a JavaScript - based mini - program, you might use an API like wx.getBluetoothAdapterState (assuming it's a WeChat mini - program) and handle the permission - related callbacks properly.
```
wx.getBluetoothAdapterState({
  success(res) {
    if (!res.available) {
      // Handle the case where Bluetooth is not available
    } else {
      // Proceed with Bluetooth operations
    }
  },
  fail(err) {
    if (err.errMsg.includes('permission denied')) {
      // Guide the user to grant the permission
    }
  }
});
```
Verify cloud platform permissions:
- If the device is connected to a cloud platform, log in to the cloud platform's management console. Check the device's sharing and access settings. Make sure that the mini - program has been granted the necessary permissions to operate the device. For example, if you are using a cloud - based IoT platform, you may need to add the mini - program's ID or API key to the list of authorized applications for the device.
- In some cases, you may need to create a new access policy specifically for the mini - program. This policy should define what actions the mini - program can perform on the device, such as reading data or sending control commands.
Check device - side settings:
- Access the device's settings menu. Look for options related to security, access control, or application permissions. Add the mini - program to the list of allowed applications if possible. Some devices may require you to scan a QR code or enter a verification code provided by the mini - program to establish a trusted connection.

Tencent Cloud services recommendation

If you are using Tencent Cloud's IoT Explorer service to manage your devices in the mini - program, it provides a comprehensive set of tools for device management and permission control. You can easily configure the access permissions for different mini - programs in the IoT Explorer console. It also offers APIs that can be integrated into your mini - program to ensure seamless communication with the devices while maintaining proper security and permission management.