Samsung galaxy S21 Ultra Teardown and Disassembly

Samsung Galaxy S21 Ultra 5G Disassembly

Hello, our esteemed followers, welcome to a new lesson on your website "Advanced Settings." In this lesson, we will discuss how to disassemble the Samsung Galaxy S21 Ultra 5G phone. We will need a set of simple tools that can help us dismantle our Samsung Galaxy S21.

Samsung Galaxy S21 Ultra Disassembly
Samsung Galaxy S21 Ultra SM-G998 Disassembly
In the lesson below, we will provide you with all the tools and steps that need to be followed to disassemble the phone smoothly, without any risks to the screen or the cover. After going through this lesson, either by reading the written instructions or watching the video below that demonstrates all the stages and steps, you will be able to deduce the correct method that you can rely on to disassemble the phone, which seems to contain expensive components such as the screen.

Tips to be observed when disassembling a Samsung Galaxy S21 Ultra

Therefore, caution should be exercised before starting the disassembly process. That's why we have prepared this lesson, which must be watched or followed to achieve satisfactory results in the end.

Samsung Galaxy S21 Ultra 5G SM-G998 Teardown

Tips and special instructions that should be observed when disassembling a Samsung Galaxy S21 Ultra:
  1. Turn off the device and disconnect the battery before starting disassembly.
  2. Use the proper tools such as a precision screwdriver set, tweezers, and a plastic pry tool to avoid damaging the delicate components.
  3. Take note of the screw locations and their specific orientations to ensure proper reassembly.
  4. Handle the display and other fragile parts with extreme care to prevent cracks or scratches.
  5. Be cautious when disconnecting the display, camera, and other cables to avoid tearing them.
  6. Keep all the small components organized and secure to prevent loss during the process.
  7. Refer to the official service manual or disassembly guide for the specific model for detailed step-by-step instructions.
  8. Discharge any static electricity by grounding yourself before handling the internal components.
  9. Ensure a clean, well-lit, and static-free work area to minimize the risk of dust or debris contamination.
  10. After completing the disassembly, test the device thoroughly to ensure proper functioning before reassembly.

Special tips to avoid damaging the screen or battery during disassembly of the Samsung Galaxy S21 Ultra

  1. Carefully pry open the rear cover and housing using a plastic tool to prevent scratching or cracking the display.
  2. Disconnect the battery connector gently and avoid pulling or tugging on the battery leads, as this can damage the battery cells.
  3. When removing the display assembly, handle it by the edges and avoid applying excessive pressure on the screen to prevent cracking or shattering.
  4. Ensure that all cables are disconnected properly and not forcefully pulled out, which could tear the connectors.
  5. Take note of the orientation and placement of components like the motherboard, camera module, and other delicate parts to simplify the reassembly process.
  6. Use the appropriate tools like non-metallic pry tools to lift and separate components without causing any undue stress or damage.
  7. Discharge any static electricity by grounding yourself before touching the internal electronics to prevent static discharge damage.
  8. Work in a clean, well-lit, and static-free environment to minimize the risk of dirt or debris contamination during the disassembly.
  9. Carefully clean any dust or debris from the internal components using a soft brush or compressed air before reassembly.
  10. Test the device thoroughly after reassembly to ensure all components are functioning properly without any issues.

tools required to disassemble a Samsung Galaxy S21 Ultra 5g

here are the main tools required to disassemble a Samsung Galaxy S21 Ultra 5G smartphone:
  1. Pentalobe Screwdriver - This special star-shaped screwdriver is needed to remove the bottom screws on the phone.
  2. Plastic Pry Tools - Thin plastic tools or playing cards are used to carefully separate the display assembly and rear panel without damaging them.
  3. Tweezers - Precision tweezers help grip and manipulate the small internal components.
  4. Spudger or Plastic Pick - A smooth plastic tool is used to gently disconnect the display and other ribbon cables.
  5. Magnets - Strong magnets can be useful for holding down and securing tiny screws and parts temporarily.
  6. ESD-Safe Work Mat - An anti-static mat prevents static electricity damage during disassembly.
  7. Adhesive Strips - The rear glass panel is often adhered strongly, so adhesive strips or a suction cup may be needed to lift it off carefully.
  8. Having this set of specialized tools on hand makes the disassembly of a Samsung Galaxy S21 Ultra 5G much safer and more manageable. The process does require patience and care to avoid any damage to the phone's sensitive internal components.

Guide about How to Disassemble the Samsung S21 Ultra 5G

The Samsung S21 Ultra 5G is a remarkable flagship smartphone known for its stunning display, powerful performance, and cutting-edge features. However, there may come a time when you need to disassemble your device, whether it's for repairs, upgrades, or simply satisfying your curiosity.

In this article, we will provide you with a step-by-step guide on how to disassemble the Samsung S21 Ultra 5G safely and effectively. Please note that disassembling your phone may void the warranty, so proceed with caution and only if you are confident in your abilities.

Before we delve into the disassembly process, it's essential to mention that opening your Samsung S21 Ultra 5G can result in damage to the device and may void the warranty. It is highly recommended to consult a professional technician or contact the official Samsung support if your device is under warranty. This guide is intended for informational purposes only, and any actions you take are at your own risk.

Tools Required

  • Small Phillips screwdriver
  • Plastic pry tools (spudgers)
  • Tweezers
  • Suction cup (optional for screen removal)
  • Heat gun or hairdryer (optional for adhesive loosening)

Step-by-Step Disassembly Guide

  1. Power off your Samsung S21 Ultra 5G and remove the SIM card tray located on the top side of the device using a SIM eject tool or a small paperclip.
  2. Heat the back panel of the phone using a heat gun or hairdryer to soften the adhesive holding it in place. Be cautious not to overheat the device.
  3. Insert a plastic pry tool between the back panel and the frame of the phone. Gently apply pressure to separate the back panel from the adhesive. Work your way around the edges until the panel is completely detached.
  4. Once the back panel is removed, you will see the internal components. Locate the battery connector and disconnect it by gently lifting the small tab with a plastic pry tool or tweezers.
  5. Locate and remove the screws securing the wireless charging coil, motherboard, and camera modules. Use a small Phillips screwdriver to carefully unscrew them and keep the screws in a safe place.
  6. Disconnect the flex cables attached to the motherboard and other components by gently lifting the connectors with a plastic pry tool or tweezers. Take note of their positions and orientation for reassembly.
  7. Remove the motherboard by gently lifting it from one end and sliding it out of the device. Be mindful of any cables or connectors that may still be attached.
  8. If you need to replace the display assembly, use a suction cup to lift the screen slightly. Insert a plastic pry tool and carefully separate the display assembly from the frame. Take caution not to damage the flex cables.
  9. To access other components such as the front-facing camera or speaker, remove the necessary screws and disconnect any attached cables. Carefully lift or pry out the components from their respective positions.


Disassembling the Samsung S21 Ultra 5G requires patience, precision, and the right tools. While the process described above may seem straightforward, it is crucial to exercise caution to avoid damaging the internal components. Remember, disassembling your device may void the warranty, so assess your skills and consider seeking professional assistance if you are uncertain.

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