Introduction: when you need to replace the display and whether to do it yourself
The Xiaomi Redmi Note 9 Pro screen is one of the most vulnerable parts of the smartphone. Falling from a height, a strong impact or even unsuccessful pressure on the display can lead to cracks, broken pixels or complete sensor failure. If your gadget stopped responding to touch, colored stripes appeared or the image flickered - most likely, the display module failed.
The cost of a replacement in a service center varies from 3,000 to 8,000 rubles (depending on the region and type of module: original, OEM or copy). However, with the tools and patience, you can do the procedure yourself, saving up to 70% of the budget. In this article, we will analyze the step-by-step process of replacing the display, list the necessary tools and talk about the typical errors that can turn repairs into a nightmare.
Important: Redmi Note 9 Pro (model number M2003J6A1G for the global version) has a glue display module, which makes it difficult to disassemble compared to models on the latches. If you have never disassembled smartphones, practice on an old device or watch video disassembly before you start.
Required tools and materials
To replace the display on the Redmi Note 9 Pro, you will need a specialized set of tools. You should not save on quality: cheap plastic blades can break in the process, and a poor-quality hair dryer can overheat the board.
- 🔧 Set of screwdrivers (cross-haul) PH00, flat 1.5 mm, five-pointed Y00 screw-tray SIM)
- 🔥 Technical dryer (power 300-500 W, temperature is adjusted to 100-120)°C)
- 📱 Suction cups for display (2 pcs., diameter 4-5 cm)
- 🗡️ Mediators or plastic blades (thickness 0.1–0.2 mm, preferably with rounded edges)
- 🧴 Isopropyl alcohol 90%+ (cleaner)
- 🔌 New display module (original or high-quality copy from a trusted store)
- 🧲 Magnetic mat or organizers (to avoid losing screws)
Tip: If you buy a display on AliExpress or eBay, pay attention to reviews about compatibility with the Internet M2003J6A1G. Some vendors have misrepresented the models in the description, and the original modules are labeled Tianma or BOE plume.
⚠️ Warning: Do not use a household hair dryer to dry your hair! it does not allow for precise temperature control and can melt plastic body parts or damage the battery.
Preparing the phone for disassembly
Before starting work, you need to completely turn off the device and prepare the workplace.
☑️ Preparation for the replacement of the display
If the phone doesn't turn on but is responding to charging, try forcefully turning it off by holding the power button for 10 to 15 seconds. If the display is completely dead but the smartphone is making sounds or vibrating, it's likely that the problem is in the screen module.
For convenience, take a picture of the back of the phone before disassembling. On the Redmi Note 9 Pro, the screws are of different lengths, and confusing them when assembled is a common error that leads to damage to the board.
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If the display is cracked but the sensor is working, put a tape on it before disassembling, which will prevent the fragments from scattering and protect your hands.
Step-by-step: Removing the old display
The most important step is to separate the display module from the housing, and it is important to observe the temperature regime and take your time.
- Heat the edge of the display with a hair dryer around the perimeter for 2-3 minutes, keeping it at a distance of 3-5 cm The temperature is not higher than 100 ° C, so as not to damage the battery.
- Place the suction cups at the bottom of the screen (near the charging connector) and pull up slightly. If the display fails, warm up for another 1-2 minutes.
- Put the mediator in the gap and gently run it around the edges, separating the glue. Don't push too hard - there are plumes under the display!
- Once the glue is separated around the perimeter, lift the display 45° and disconnect the battery and screen plumes using a plastic shoulder blade.
Critical: The display plume on the Redmi Note 9 Pro is attached to a fragile connector, and if you tear it out with effort, the contacts on the board can come off, which will require soldering.
| Phase | Fryer temperature | Heat time | Risks. |
|---|---|---|---|
| Display compartment | 90–100°C | 2-3 minutes | Battery overheating |
| Glue removal | 80–90°C | 1 minute to the station | Damage to plumes |
| Removal of glue residue | — | — | Scratches on the frame |
⚠️ Warning: If the phone starts to swell or the smell of burning appears, stop the procedure immediately.
Installation of a new display and assembly of the phone
Before installing the new module, clean the phone's frame of the residue of old glue with isopropyl alcohol and a lilac-free wipe. Don't use acetone or solvents - they can damage plastic parts!
Assembly process:
- Connect the new display plumes to the motherboard, make sure the connectors are snapped with the characteristic sound.
- Apply a new adhesive layer (you can use 3M 9448A double-sided tape or B-7000 liquid adhesive).
- Carefully apply the display, starting at the top, and press it around the edges.
- Twisting all screws in reverse order, starting with the longest (in the camera holder).
After assembly, don't turn the phone on immediately. Let the glue grab for 1-2 hours.
- 📱 Check the sensor response across the entire area (use the Touch Screen Test app).
- 🔍 Make sure there are no broken pixels (clean white/black screen).
- 🔋 Check the charging and operation of the speakers (sometimes the plumes touch the contacts).
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If the sensor flickers or doesn't work after the display is replaced, check the density of the plumes. Often the problem is solved by reconnecting.
Common Mistakes and How to Avoid Them
Even experienced wizards sometimes make mistakes when replacing the display with the Redmi Note 9 Pro. Here are the most common of them and ways to prevent them:
- 🔌 Damage to battery plume – always turn it off first to avoid short circuit.
- 🔥 Overheating board – do not direct the hair dryer to one area longer than 20 seconds.
- 🧲 Loss of screws – use a magnetic organizer or stick screws on the scotch in order of extraction.
- 📉 Poor adhesion of the new display – if the glue is weak, the screen will “walk” when pressed.
If the phone does not turn on after replacement, check:
- Connecting the battery (sometimes the plume falls out of the connector).
- Integrity of contacts on the motherboard (clean them with alcohol if necessary).
- Correct installation of all screws (a compressed screw can shorten the board).
What to do if the new display does not work?
Where to buy a high-quality display and how much it costs
The price of the display module for the Redmi Note 9 Pro depends on the type and seller. Here are the current options (for 2026):
| Type of display | Price, rub. | Where to buy | Pluses | Cons |
|---|---|---|---|---|
| Original (OEM) | 5 000–7 000 | Official services, Mi Store | 100% compatibility, original quality | Expensive, long wait. |
| Quality copy (A+) | 2 500–4 000 | AliExpress, eBay, checked stores | Good quality for reasonable money | Color reproduction may differ |
| Budget copy (A-) | 1 200–2 000 | Cheap online shopping | Low price | Bad sensor, broken pixels, short life |
When buying on AliExpress, pay attention to the seller’s rating (at least 98%) and the number of orders. Good stores often offer video with display testing before sending, and check if the adhesive layer and installation tools are included.
Tip: If you buy a display from hand (like on Avito), ask the seller to take a video of the sensor and display test, which will help avoid buying a defective module.