Hi there! I see you're having trouble with the Logos app freezing on the "Authorize" screen after signing in on your BOOX Note Air5c. Let's work through this together to get it sorted out.

First, just to clarify: after you input your credentials and hit "Authorize," the app's loading wheel spins endlessly without completing the authorization—is that right? Also, have you tried any troubleshooting steps so far like restarting the device or reinstalling the app?

Assuming you're ready, here are some steps we can try to resolve this:

1. Restart Your BOOX Note Air5c
A simple restart can clear temporary glitches that might cause freezing.

2. Ensure Apps Are Enabled (Specific to BOOX devices)
On some BOOX devices, apps installed from the Google Play Store need to be "enabled" before full operation. You can check this by going to Settings > Apps > Logos and ensuring the app is enabled.

3. Clear Cache and Data for Logos App
- Go to Settings > Apps > Logos
- Tap Storage
- Select Clear cache first, then try launching the app.
- If that doesn't help, go back and choose Clear data (note: this will delete app preferences, so you may need to sign in again).

4. Check Network Connection
Authorization requires an active connection. Ensure your device is connected to Wi-Fi or mobile data, and try toggling the connection off and on.

5. Update the Logos App and Device Firmware
Sometimes, compatibility issues cause freezes. Make sure your Logos app and BOOX firmware are up to date via their respective update settings.

6. Reinstall Logos App
Uninstall the app completely, restart your device, then reinstall Logos from the Google Play Store.

If after all this the app still freezes on "Authorize," it might be an issue specific to the BOOX Air5c or the current Logos app version. There have been community reports of similar happening, often related to device-specific permission issues or software conflicts1 2.

If you want, I can guide you through checking for app permissions or if necessary, escalate this to our specialized support team for deeper troubleshooting.

How does that sound? Would you like help starting with these steps?