How to Replace a Samsung Galaxy S21 Plus Screen: A Comprehensive Guide for DIY Repairs

How to Replace a Samsung Galaxy S21 Plus Screen: A Comprehensive Guide for DIY Repairs

The Importance of a Working Display

Your Samsung Galaxy S21 Plus is more than just a phone; it's your portal to the digital world, a connection to loved ones, and a tool for work and play. When the screen cracks or breaks, it's not just an aesthetic issue; it significantly impacts your daily life. The good news is, you don't have to shell out a fortune for a professional repair. With the right tools and a bit of patience, you can replace the screen yourself, saving money and gaining a sense of accomplishment.

This comprehensive guide will walk you through the process of replacing a Samsung Galaxy S21 Plus screen, providing detailed instructions and tips for a successful repair.

A Quick Look at the Samsung Galaxy S21 Plus Screen

The Galaxy S21 Plus boasts a stunning 6.7-inch Dynamic AMOLED 2X display, renowned for its vibrant colors, deep blacks, and responsive touch input. However, this beautiful screen is also delicate, making it susceptible to cracks and breaks.

A broken screen can manifest in various ways:

  • Cracked glass: This is the most common type of damage, where the glass surface is spiderwebbed with cracks.
  • Black spots: Dead pixels can appear as dark spots on the screen, indicating damage to the display itself.
  • Touchscreen issues: If the touchscreen becomes unresponsive or erratic, it could indicate damage to the digitizer layer, which translates touch inputs to the phone.
  • Vertical or horizontal lines: These lines often signal damage to the display panel, leading to distorted visuals.

The Right Tools for the Job

Before we delve into the step-by-step instructions, let's gather the essential tools for a smooth and successful screen replacement:

  • Phillips head screwdriver: This will be used to remove the screws securing the phone's components.
  • Heat gun or hairdryer: This will help soften the adhesive holding the back cover and other components in place.
  • Plastic opening tool or guitar pick: This is crucial for gently prying open the phone and separating components without damaging them.
  • Suction cup: This will help you safely lift the screen away from the phone body.
  • Tweezers: These will be helpful for delicate tasks like removing screws and handling small components.
  • Microfiber cloth: A clean cloth is essential for wiping away dust and fingerprints.
  • Isopropyl alcohol: This will clean the adhesive surfaces before installing the new screen.

Choosing the Right Replacement Screen

A quality replacement screen is crucial for a successful repair. We recommend the AMOLED Display Assembly With Frame for Samsung Galaxy S20, a high-quality replacement screen designed for compatibility with the Samsung Galaxy S21 Plus.

AMOLED Display Assembly With Frame for Samsung Galaxy S20

This replacement screen features a 6.2-inch, 1440x3200 resolution, providing a sharp and vibrant visual experience. It's a cost-effective solution for fixing a damaged screen, and it's backed by a 6-month warranty for added peace of mind. You can also find this screen with fast shipping options.

Understanding the Risks and Benefits of DIY Repair

Replacing a Samsung Galaxy S21 Plus screen yourself can be a cost-effective solution, potentially saving you hundreds of dollars compared to professional repair costs. However, it's important to understand the risks involved before embarking on this DIY project.

**Here are the potential benefits:**

  • **Cost savings:** DIY repairs can significantly reduce repair expenses.
  • **Sense of accomplishment:** Successfully completing a repair can provide a sense of satisfaction and technical skill.
  • **Faster turnaround time:** You can often repair the screen much faster than waiting for a professional repair shop.

**Here are the potential risks:**

  • **Damage to the phone:** If you're not careful, you could damage the phone's internal components during the repair process.
  • **Voiding the warranty:** Some manufacturers' warranties may be voided if you attempt to repair the phone yourself.
  • **Safety hazards:** Working with electronic devices involves potential safety hazards, such as electric shock.
  • **Complexity of the repair:** Replacing a screen can be a complex process, requiring specialized tools and knowledge.

**It's crucial to weigh the potential benefits and risks before deciding to perform a DIY screen replacement.**

Detailed Steps for Replacing the Samsung Galaxy S21 Plus Screen


Now that you have the right tools and a replacement screen, you're ready to begin the repair process. Follow these steps carefully:

  1. Power off your phone and remove the SIM card tray: Before starting any repair, it's essential to power off your phone and remove the SIM card tray to avoid damaging sensitive components.
  2. Heat the back of your phone: Using a heat gun or hairdryer, apply heat to the back of your phone for a few minutes to soften the adhesive holding the back cover in place. This will make it easier to detach the cover without damaging it.
  3. Carefully pry open the back cover: Use a plastic opening tool or guitar pick to gently pry around the edges of the back cover. Work your way around the entire phone, applying even pressure to avoid bending or cracking the cover.
  4. Remove the screws holding the midframe: Once the back cover is detached, you'll see screws holding the midframe in place. Use a Phillips head screwdriver to remove these screws carefully.
  5. Detach the screen from the phone: Use a suction cup to gently lift the screen away from the phone body. Be careful not to apply excessive force, as you don't want to damage the screen or the phone's internals.
  6. Disconnect the ribbon cables: Once the screen is slightly lifted, you will see several ribbon cables connecting the screen to the motherboard. Use tweezers to carefully disconnect these cables.
  7. Remove the old adhesive: After detaching the ribbon cables, carefully peel off the adhesive holding the old screen in place. Use a plastic tool to help lift the edges of the adhesive, and work slowly to prevent damage to the screen or the phone.
  8. Clean the adhesive surfaces: Before installing the new screen, use isopropyl alcohol to clean the adhesive surface of the phone and the new screen. This will ensure a clean and secure adhesion.
  9. Apply the new adhesive: Apply the new adhesive to the new screen, following the instructions provided with the replacement screen. Ensure the adhesive is centered and aligned correctly before placing the new screen on the phone.
  10. Connect the ribbon cables: Carefully reconnect the ribbon cables to the motherboard, ensuring they are securely in place.
  11. Lower the new screen: Gently lower the new screen onto the phone, making sure the adhesive is firmly adhered to the phone's frame.
  12. Press down on the screen: Use your fingers to gently press down on the new screen to ensure a good seal with the adhesive.
  13. Reassemble the phone: Reinstall the midframe and secure it with the screws you removed earlier. Then, reattach the back cover and ensure it's firmly secured.
  14. Power on your phone and test the new screen: Power on your phone and test the new screen to ensure it's working properly.

Tips for Success

Here are some additional tips for a smooth and successful Samsung Galaxy S21 Plus screen replacement:

  • Work in a clean environment: Dust and debris can interfere with the adhesive and cause problems.
  • Take your time: Rushing the repair can lead to mistakes and damage.
  • Use caution: Be gentle with the components, especially when disconnecting and reconnecting the ribbon cables.
  • Watch video tutorials: There are many helpful video tutorials available online that can guide you through the entire process.

Final Thoughts: Repair or Replace?

Replacing a Samsung Galaxy S21 Plus screen is a challenging but rewarding DIY project. It can save you a significant amount of money compared to professional repair costs. However, if you're not comfortable with this process or if you're not confident in your abilities, it's always best to seek professional help.

Remember, safety and accuracy are crucial for a successful repair. If you're unsure about any step, consult a professional before proceeding.

We hope this guide has provided you with the information and confidence to tackle your Samsung Galaxy S21 Plus screen replacement project.

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