Samsung Galaxy S9+

Samsung Galaxy S9+ Plus (G965U) User Manual

Model: Galaxy S9+ (G965U)

1. Introduction

Welcome to the user manual for your new Samsung Galaxy S9+ Plus. This guide provides essential information to help you set up, operate, maintain, and troubleshoot your device. The Samsung Galaxy S9+ Plus is a high-performance smartphone designed for seamless communication and multimedia experiences.

Samsung Galaxy S9+ Plus, front and back view in Coral Blue

Figure 1: Front and back view of the Samsung Galaxy S9+ Plus in Coral Blue. The front features a large display, while the back shows the dual camera setup and Samsung branding.

2. Initial Setup

2.1. Inserting the SIM Card

The Samsung Galaxy S9+ Plus uses a single Nano-SIM card. Ensure your device is powered off before inserting or removing the SIM card.

  1. Locate the SIM card tray on the side of your device.
  2. Insert the ejection pin (included in the box) into the small hole on the SIM card tray to open it.
  3. Place your Nano-SIM card into the tray with the gold contacts facing down.
  4. Gently push the tray back into the slot until it clicks into place.

2.2. Powering On/Off

  • To power on: Press and hold the Power key (located on the right side) until the Samsung logo appears.
  • To power off: Press and hold the Power key, then tap 'Power off' on the screen.

2.3. Initial Configuration

Upon first power-on, follow the on-screen prompts to select your language, connect to Wi-Fi, set up your Google account, and transfer data from a previous device.

3. Basic Operation

3.1. Display Features

Your device features a 6.2-inch Quad HD+ Super AMOLED display with a resolution of 2960x1440 pixels and 529 ppi, providing vibrant colors and sharp details.

Samsung Galaxy S9+ Plus front view with a dandelion wallpaper

Figure 2: Front view of the Samsung Galaxy S9+ Plus, showcasing its curved Super AMOLED display with minimal bezels.

3.2. Operating System and Performance

The device runs on Android 8.0 (Oreo) and is powered by a 10nm 64-bit Octa-Core Processor (2.8GHz + 1.7GHz), ensuring smooth multitasking and app performance. It comes with 6GB of RAM and 64GB of internal storage (ROM).

3.3. Audio

Enjoy rich sound through stereo speakers tuned by AKG. The device also includes a traditional 3.5 mm audio jack for your headphones.

4. Camera Features

The Samsung Galaxy S9+ Plus is equipped with advanced camera technology for capturing high-quality photos and videos.

Samsung Galaxy S9+ Plus back view showing the dual camera and fingerprint sensor

Figure 3: Back view of the Samsung Galaxy S9+ Plus, highlighting the vertically aligned dual rear cameras and the fingerprint sensor below them.

  • Dual Rear Camera: Features two 12MP lenses, offering optical zoom at 2x and digital zoom up to 10x.
  • Live Focus: Utilize bokeh filters to add a background blur effect to your portraits.
  • Front Camera: An 8MP front-facing camera for clear selfies and video calls.

5. Connectivity

Your Galaxy S9+ Plus supports a wide range of connectivity options:

  • Network Bands: Supports 2G, 3G, and 4G LTE bands for global compatibility.
  • Carrier Compatibility: This T-Mobile Unlocked phone is compatible with most GSM carriers such as T-Mobile, AT&T, and MetroPCS. Note: It will NOT work with CDMA carriers such as Verizon, Sprint, or Boost.
  • Wireless Technologies: Includes Wi-Fi for internet access and GPS for location services.

6. Maintenance

6.1. Battery Care

The device is powered by an included A battery. To maximize battery life, avoid extreme temperatures and use only Samsung-approved chargers.

6.2. Water and Dust Resistance

The Galaxy S9+ Plus features an IP68 rating for water and dust resistance. This means it can withstand immersion in up to 1.5 meters of fresh water for up to 30 minutes. Avoid exposing the device to saltwater or chlorinated water.

7. Troubleshooting

If you encounter issues with your device, try the following basic troubleshooting steps:

  • Restart your device: A simple restart can often resolve minor software glitches.
  • Check for software updates: Ensure your device is running the latest software version by going to Settings > Software update.
  • Clear app cache: If an app is misbehaving, try clearing its cache in Settings > Apps > [App Name] > Storage > Clear cache.
  • Factory reset: As a last resort, you can perform a factory reset (Settings > General management > Reset > Factory data reset). Warning: This will erase all data on your device. Back up important information before proceeding.

8. Specifications

FeatureDetail
Model NameGalaxy S9 Plus
Display6.2" Quad HD+ Super AMOLED (2960x1440), 529 ppi
Operating SystemAndroid 8.0 (Oreo)
Processor10nm 64-bit Octa-Core (2.8GHz + 1.7GHz), Snapdragon 845
RAM6 GB
Internal Storage64 GB ROM
Rear CameraDual 12MP + 12MP, 2x Optical Zoom, 10x Digital Zoom, Live Focus
Front Camera8MP
AudioStereo speakers tuned by AKG, 3.5 mm Audio Jack
ConnectivityWi-Fi, GPS, Cellular (GSM/4G LTE)
Water/Dust ResistanceIP68
Dimensions7.64 x 4.69 x 2.28 inches (Package)
Item Weight1.17 pounds
ManufacturerSamsung
First AvailableMarch 22, 2019

9. Warranty and Support

9.1. US Warranty

This device comes with a US Warranty. For specific terms and conditions of your warranty, please refer to the documentation included with your purchase or visit the official Samsung support website.

9.2. Customer Support

For further assistance, technical support, or service inquiries, please visit the official Samsung website or contact their customer service. You can find more information and resources at the Samsung Store.

© 2025 Samsung. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.