1. Introduction
This user manual provides detailed instructions for the T-Mobile REVVL 5G T790W smartphone. It covers essential information regarding device setup, operation, maintenance, and troubleshooting to ensure optimal performance and user experience. Please read this manual thoroughly before using your device.
2. Device Overview
The T-Mobile REVVL 5G T790W is a 5G-capable smartphone featuring a 6.5-inch display and 128GB of internal storage. It operates on Android 10.0 and is powered by a Snapdragon CPU with 4GB RAM. The device includes front and rear cameras and a 4000 mAh battery.

Figure 2.1: Front and rear view of the T-Mobile REVVL 5G T790W smartphone, showcasing the display and camera module.

Figure 2.2: Multiple views of the T-Mobile REVVL 5G T790W, illustrating its profile and button placement.

Figure 2.3: Close-up front view of the T-Mobile REVVL 5G T790W display.
3. Setup
3.1. SIM Card Installation
- Locate the SIM card tray on the side of your device.
- Insert the SIM ejector tool (not included, use a thin paperclip if necessary) into the small hole next to the tray to open it.
- Place your Nano-SIM card into the tray with the gold contacts facing down and the cut corner aligned correctly.
- Gently push the tray back into the slot until it is flush with the device.
Note: Ensure the SIM card is correctly oriented to avoid damage or improper function. If the phone does not recognize the SIM card, re-insert it carefully.
3.2. Initial Power On
Press and hold the Power button (usually on the right side of the device) until the T-Mobile logo appears on the screen. The device will boot up.
3.3. Basic Setup
Follow the on-screen prompts to complete the initial setup:
- Select your language and region.
- Connect to a Wi-Fi network for faster setup and software updates.
- Sign in with your Google Account or create a new one. This is essential for downloading apps from the Google Play Store and syncing data.
- Set up screen lock (PIN, pattern, password, fingerprint, or face recognition).
- Review and accept terms and conditions.
4. Operating Instructions
4.1. Navigation
- Touchscreen Gestures: Tap to select, swipe to scroll, pinch to zoom.
- Home Screen: Access apps, widgets, and notifications.
- Notification Panel: Swipe down from the top of the screen to view notifications and quick settings.
4.2. Calls and Messaging
- Making Calls: Open the Phone app, enter the number, and tap the call icon.
- Sending Messages: Open the Messages app, tap to start a new conversation, enter recipient and message.
4.3. Camera Usage
The device features both front and rear cameras. Open the Camera app to capture photos and videos.
- Tap the shutter button to take a photo.
- Switch between photo and video modes.
- Use the icon to switch between front and rear cameras.
4.4. Connectivity
- Wi-Fi: Go to Settings > Network & internet > Wi-Fi to connect to available networks.
- Bluetooth: Go to Settings > Connected devices > Bluetooth to pair with other Bluetooth devices.
- USB: Connect the device to a computer using the provided USB cable for data transfer or charging.
- 5G Network: The device supports 5G cellular technology for high-speed data access where available.
5. Maintenance
5.1. Battery Care
- To prolong battery life, avoid extreme temperatures.
- Use only the original or certified compatible chargers and USB cables.
- Avoid fully discharging the battery frequently.
- If the device experiences rapid battery drain, check background app usage and adjust settings.
5.2. Cleaning Your Device
Use a soft, lint-free cloth to clean the screen and body of the phone. Avoid using harsh chemicals or abrasive materials.
5.3. Software Updates
Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. Go to Settings > System > Advanced > System update.
6. Troubleshooting
This section addresses common issues you might encounter with your T-Mobile REVVL 5G T790W smartphone.
6.1. Common Issues and Solutions
- Device Not Powering On: Ensure the battery is charged. Connect the device to a charger for at least 15 minutes, then try powering it on again.
- SIM Card Not Detected: Power off the device, remove and re-insert the SIM card carefully, then power on. Verify the SIM card is correctly placed in the tray.
- Rapid Battery Drain: Check battery usage in Settings to identify apps consuming excessive power. Close unnecessary background apps. Reduce screen brightness.
- Device Overheating: Excessive use, especially during charging or gaming, can cause the device to warm up. Close demanding applications and allow the device to cool down. Avoid direct sunlight.
- Apps Crashing or Freezing: Try force-closing the app and reopening it. Clear the app's cache (Settings > Apps & notifications > [App Name] > Storage & cache > Clear cache). If the issue persists, uninstall and reinstall the app.
- Network Connectivity Issues: Toggle Airplane Mode on and off. Restart the device. Check your SIM card and ensure your mobile data is enabled.
6.2. Factory Reset
Warning: A factory reset will erase all data from your device. Back up important data before proceeding.
If persistent software issues occur, a factory reset may resolve them. Go to Settings > System > Advanced > Reset options > Erase all data (factory reset).
7. Specifications
| Feature | Detail |
|---|---|
| Brand | T-Mobile |
| Model Name | T-Mobile Revvl |
| Item Model Number | TMobile REVVL 5G |
| Operating System | Android 10.0 |
| Cellular Technology | 5G |
| Screen Size | 6.5 Inches |
| Resolution | 2640 x 1242 |
| Memory Storage Capacity | 128 GB |
| RAM | 4 GB |
| CPU Model | Snapdragon |
| Battery Power Rating | 4000 Milliamp Hours |
| Item Weight | 12.3 ounces |
| Connectivity Technology | USB |
| Other Camera Features | Front, Rear |
| Human Interface Input | Touchscreen |
| What's in the box | USB Cable |
8. Warranty and Support
This product is offered as an Amazon Renewed item. Amazon Renewed products are professionally inspected, tested, and refurbished by Amazon-qualified suppliers to work and look like new. They are eligible for replacement or refund under the Amazon Renewed Guarantee if you are not satisfied with your purchase.
For further support or warranty claims related to your Amazon Renewed purchase, please refer to the Amazon Renewed Guarantee details provided at the time of purchase or contact Amazon customer service.





