If the camera glass on your Samsung Galaxy S20 Ultra is broken, you have several options to address the issue:

1. **Contact Samsung Support:** If your Galaxy S20 Ultra is still under warranty, it's best to contact Samsung support or visit an authorized Samsung service center. They can assess the damage and, if covered under warranty, repair or replace the camera glass at no cost.

2. **Authorized Service Center:** If your device is not under warranty or the damage is not covered, you can take your s20 ultra camera glass broken Ultra to an authorized Samsung service center. They have trained technicians and genuine Samsung parts to perform the repair professionally.

3. **Third-Party Repair Shop:** There are third-party repair shops that specialize in smartphone repairs, including camera glass replacements. While they may offer more competitive pricing, be sure to choose a reputable and experienced shop to ensure quality service and the use of genuine or high-quality replacement parts.

4. **DIY Repair:** Replacing the camera glass yourself is possible, but it can be challenging and may void any existing warranties. DIY repair requires special tools, skills, and replacement parts. There are online tutorials and kits available for this purpose, but it's crucial to proceed with caution to avoid causing further damage to your device.

Before proceeding with any repair option, consider the following:

- Make sure to back up your important data and files before handing over your device for repair or attempting a DIY fix.
- Check for any other damages or issues with your device that might be best addressed at the same time.
- Ask about the warranty or guarantee provided by the repair service for the replacement parts and labor.

Remember, smartphone repairs can be delicate processes, so it's essential to entrust your device to skilled technicians or reputable repair services to ensure a successful and safe repair.