If the APP on your Xiaomi TV A 55 2025 can't be logged in, please refer to the following troubleshooting steps:
1. Please ensure that your TV is connected to the internet. A weak or unstable internet connection can prevent applications from starting or functioning correctly;
2. Ensure you download and install the APP from the Google Play Store. Unknown APP sources are not well matched with the Xiaomi TV;
3. Restart your TV to check if the issue can be solved;
4. Make sure that the APP is up to date. Go to the Google Play Store, find the APP in question, and check if there is an update available;
5. Clear the APP's data or cache in Settings;
6. If clearing cache and data doesn't work, you can uninstall it and then reinstall it from the Google Play Store;
7. Check for available updates for the system;
8. If the issue persists, you can consider performing a factory reset. Be aware that this will erase all data and settings on your TV, so make sure to back up anything important before doing this.
We hope the above methods can resolve the issue. If the issue persists, please submit your feedback or upload logs on your TV.