📞 Contact Us
Email
Service Hours
Monday - Friday, 9:00 - 18:00 (UTC+8)
❓ Frequently Asked Questions
Q: The app cannot connect to the internet. What should I do?
A: Go to Settings → YuGuang → Cellular Data → Select 'WLAN & Cellular'.
Q: Unable to connect to Bluetooth device?
A: Make sure Bluetooth is enabled on your device and the app has Bluetooth permission. Go to Settings → Privacy & Security → Bluetooth → Allow YuGuang.
Q: How do I report an issue or suggest a feature?
A: Please send an email to gajlights@gmail.com and we will get back to you as soon as possible.
Q: The app crashes or freezes. What should I do?
A: Try restarting the app. If the issue persists, please contact us via email with details about the problem.
Q: How do I update the app?
A: The app updates automatically through the App Store. You can also manually check for updates in the App Store.
📌 Current Version: 1.6.9
📅 Last Updated: April 2026