The Samsung Galaxy S20 Ultra (model G988B) is a high-performance smartphone that once ruled the Android flagship space with its powerful hardware and futuristic features. But with time, every device starts showing signs of software degradation — lag, virus infection, update issues, or boot errors. This guide will help you download the official stock firmware for the Galaxy S20 Ultra and teach you how to flash it correctly.
📥 Why Update or Flash G988B Firmware?
Installing the latest firmware offers numerous benefits:
- ⚡ Improved performance and smooth user experience
- 🔐 Security patches that protect your data and privacy
- 🆕 Access to updated features and system enhancements
- 🔄 Fix software problems like boot loop, app crashes, or dead boot
Firmware updates ensure your device functions like new, especially if it's experiencing instability or if you’ve skipped several system updates.
📂 Download Firmware
| Firmware Download Section |
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| 📎 Download Galaxy S20 Ultra G988B Firmware |
🔧 Prepare Your Device
- Ensure your phone is charged to at least 50%
- Install Samsung USB drivers on your PC
- Download and extract Odin flash tool
- Enable USB Debugging from Developer Options
⚙️ How to Flash Using Odin
- Enter Download Mode:
- Power off your phone
- Press and hold Volume Down + Power until the warning screen appears
- Press Volume Up to enter Download Mode
- Connect to PC: Use a USB cable to connect your phone
- Load Firmware into Odin:
- Launch Odin on your computer
- Click “AP” and select the main .tar.md5 file
- Load BL, CP, CSC if provided in the package
- Begin Flashing: Click “Start” in Odin and wait for the process to complete. Once successful, you’ll see a green “PASS” message.
🛡️ Final Tips
Always double-check your model number before downloading firmware. Flashing the wrong ROM may brick your phone. Also, back up your important files beforehand to prevent data loss.
Disclaimer: This process is safe when done properly. However, we take no responsibility for any damage that may occur during flashing.