Replacement of the display on Xiaomi Redmi 8A: a detailed guide with photos and tips of masters

The broken screen on Xiaomi Redmi 8A is one of the most common problems faced by owners of this budget smartphone: dropped the phone, cracked or black stripes, and the sensor stopped responding to touch? Don’t rush to carry the device to the service center: with patience and a minimum set of tools, you can replace the display yourself. In this article, we will discuss the entire process from A to Z: from choosing a new screen to the final build, and also talk about the typical mistakes that beginners make.

Model Redmi 8A (The code name Oliveté was released in 2019 It's still popular today because it's reliable and it's not expensive. IPS LCD permittingly 720×1520 diagonally 6.22", a the touch layer is combined with the display in a single module (the so-called "module") OGS-This makes it easier to replace, but it requires care: one wrong step and you can damage the plumes or the motherboard.

Before you start repairing, consider your own strength. If you've never taken your smartphones apart, practice on an old device, or watch some videos of the Redmi 8A disassembly on YouTube. Note that replacing your screen yourself takes away your warranty (if it's still valid), and doing the wrong thing can cause your phone to fail completely. Are you willing to take a risk?

1. Diagnosis of malfunction: is the screen really to blame?

Before ordering a new display, make sure it's the one that's the problem, and sometimes the symptoms of a "beat screen" can be caused by other malfunctions:

• 🔋 The sensor is not responding, but the image is there - perhaps the sensor plume has gone away or the controller has failed (the chip on the motherboard).
• 🖥️ Black screen, but phone vibrates/rings – check the backlight of the display (may have burned the LED or capacitor on the board).
• 🔄 Colored stripes or artifacts – often indicate damage to a flexible plume or graphics chip.
• 💥 Cracks + The sensor is not working, 99% of the time you need a new screen.

To rule out software failures, connect Redmi 8A to your computer via USB and check if it is detected in Device Manager (Windows) or in adb devices (if USB debugging is enabled). If the phone is "seeing" but the screen is not working - the problem is exactly in the display or the plumes.

⚠️ Warning: If the phone fell into the water or was hit hard before the screen died, the motherboard could have been damaged, and if the screen was replaced, it would not help, and a diagnosis would be required at the service center.

2.Selection of a new screen: original vs. copy

There are three types of screens available for Xiaomi Redmi 8A:

Where to buy? Secure sites:

• 🛒 AliExpress – Cheap Copies, but Long Delivery (Look for 98-rated sellers%+).
• 🏬 Local service centers – often sell original parts.
• 🌍 eBay/Amazon — Good selection of premium copies, but prices are higher.

💡

Before buying, make sure that the screen glue is included (or order the B-7000 or LOCITE 406) separately.

3. Tools required: what will be needed to replace

To disassemble the Redmi 8A and replace the screen, prepare the following set:

Screwdriver cross (PH00) for screws of the body |

Plastic mediators (2-3 pieces) for disengagement of the body |

Screen suction cup (diameter 5-7 cm) |

Thin-end tweezers |

Dryer or thermo-air station (for softening glue)|

Scalpel or knife for tanning plumes |

Isopropyl alcohol (90%+) clean-up|

Antistatic bracelet (optional, but recommended)-->

If you don't have a thermophen, you can use a regular hair dryer, but be careful: don't overheat the screen above 60°C, otherwise damage the plumes. The alternative is to put the phone on the heating battery for 5-10 minutes to make the glue softer.

⚠️ Warning: Don't use metal instruments to tweak the screen! Even a small scratch on the plume can cause contact breaks. Plastic mediators or guitar mediators are perfect.

Screwdrivers |

Mediators and suckers |

Dryer/therm-air station |

None of the above |-->

Step-by-step: how to disassemble the Redmi 8A and replace the screen

We're going to get to the most critical stage. SIM-Work on a clean, well-lit surface.

Step 1: Removing the back cover

1. Heat the edge of the back cover with a hair dryer (30 seconds on each side).

2. Insert a plastic mediator into the gap between the lid and the housing (start at the bottom edge where the charging connector is).

3. Carefully guide the mediator around the perimeter, separating the lid. If you feel resistance, warm up the place again.

Step 2: Shutting off the battery

1 Unscrew 4 screws that fix the metal plate above the battery.

2. disconnect the battery plume with a plastic mediator (don't pull the wires!).

Important: Working with a connected battery is dangerous - the risk of short circuit!

Step 3: Dismantling the Old Screen

1. heat the front of the phone with a hair dryer (especially around the edges of the screen).

2. With a suction cup, raise the screen 1-2 mm, then insert the mediators into the slits on the sides.

3. Slowly separate the screen, watching the plumes. They are glued to the back of the display - don't tear them!

4. disconnect the screen and sensor plumes (they are fixed by latches - carefully tweez them).

Step 4: Install a new screen

1. Transfer to the new screen all the small details from the old: speaker, LED notifications, front camera.

2. Connect the plumes to the new display (touch first, then the main one) and make sure they sit in the connectors before clicking.

3. Apply a thin layer of B-7000 glue along the edge of the body (don’t overdo it – excess can get inside!).

4. Carefully press the screen, starting at the top. Walk around the edges with your fingers to ensure that the glue is evenly distributed.

Step 5: Assembly of the phone

1. Connect the battery and check the new screen (turn on the phone, check the sensor and colors).

2 If everything works, twist the screws, install the back cover and warm it up with a hairdryer for better fixation.

💡

The most common mistake when replacing the screen is the wrong connection of the plumes. If the screen does not work after assembly, check if they are fully entered into the connectors, and clean the contacts with alcohol.

5.Typical problems after replacement and their solution

Even if you do everything according to the instructions, you can have problems.

• 🔳 The screen is working, but the sensor is not responding: - Check the connection of the sensor plume (it is thinner than the main plume of the display). - Perhaps the plume is damaged - try to replace it separately.
• 🎨 Distorted colors or stripes: - Most likely, the display plume is not fully inserted into the connector. - Less often - a defect of the screen itself (especially in budget copies).
• 🔦 Backlights not working: - Check the backlight power circuit on the motherboard (a resistor or capacitor could have burned). - If the backlight flashes - the problem is in the plume.
• 📶 No network or sensors are not working: - When you disassemble, you may have hit antenna wires or sensor plumes.

If the screen is yellow or greenish after being replaced, it's a sign of a cheap copy with poor color reproduction, and unfortunately, this can only be corrected by replacing it with a better display.

6. How much does it cost to replace the screen in the service vs. independently

Prices for the replacement screen Xiaomi Redmi 8A service centers vary depending on the region and type of display:

Is it more profitable to repair yourself? Yes, if you already have tools. For example, buying a premium copy of the screen will cost you a lot of money. ~2 500 ₽, And the service will take 4,000 for the same job. ₽. However, consider the risks: if you damage the fee, repairs can rise in price to 10 000. ₽.

Tip: If you're not confident, find a service with a job guarantee. Many workshops give you a 3-6 month guarantee to replace the screen.

7.How to extend the life of a new screen: tips for operation

To make the new display last longer, follow these guidelines:

• 🛡️ Use a protective glass and case – even budget models reduce the risk of damage from a fall.
• 🚫 Don’t put your phone in your back pocket of jeans – it’s the most common cause of falls.
• 🔋 Avoid overheating – do not leave your phone in the sun or near heat sources (this spoils glue and plumes).
• 💧 Keep away from moisture, even if Redmi 8A not afraid of splashes, water ingress under the screen leads to corrosion of contacts.
• 🔄 Do not press the screen when charging - this can damage the plumes at the bending site.

If you drop your phone a lot, consider a gadget insurance policy. Some banks (like Tinkoff or Sber) offer mechanical damage insurance programs for 200 to 500 dollars. ₽ monthly.

FAQ: Frequent questions about screen replacement on Redmi 8A