How to find out the screen manufacturer on Xiaomi Redmi Note 7: a complete guide with photos and codes

You own a Xiaomi Redmi Note 7 and want to know which manufacturer supplied the screen for your smartphone? This information can be useful when choosing parts for repair, assessing the quality of display or even when selling the device. The fact is that the Redmi Note 7 came with displays from different brands — Samsung, BOE, Tianma and others — and their characteristics are markedly different.

In this article, we’ll look at all the ways you can identify your screen maker, from hidden engineering menus to visuals, which panels are considered the best, how to distinguish them without disassembling your phone, and why this information is important for the durability of your gadget, and the unique codes and combinations that work for the Redmi Note 7 and are not documented in the official instructions.

Why it’s important to know the Redmi Note 7 screen manufacturer

The quality of the display directly affects the user experience. Screens from different manufacturers may vary:

• 🔹 Color rendering – Samsung panels are traditionally considered more saturated, and BOE Sometimes they sin with cold shades.
• 🔹 Brightness – the maximum brightness of the models varies from 400 to 500 nits, which is noticeable when used in the sun.
• 🔹 Energy consumption – some panels consume up to 15% more battery power at the same load.
• 🔹 The cost of repair – original spare parts from Samsung can cost 1.5-2 times more expensive than counterparts from Tianma.

Also, knowing the screen maker will help avoid counterfeiting when buying parts. For example, there are often non-original panels on the market that are identifiable as Samsung, but in fact are relabeled BOEs. And also, it is useful when selling a phone: devices with displays from Samsung are usually ranked higher.

⚠️ Note: If you are planning to replace your screen, note that panels from different manufacturers may have incompatible connectors or firmware. For example, the screen from Tianma sometimes does not work correctly with matrices designed for the display. BOE, Even if they look identical.

Method 1: Use of the engineering menu (codes ##)

The most reliable method is to check through a hidden engineering menu, and the following combinations are suitable for the Redmi Note 7:

1. Open the Phone app.
2. Enter the code ##4636## (Equipment Testing).
3. Go to the Hardware info → Display tab.
4. Find the Panel vendor or Manufacturer lines, and the manufacturer will be listed.

If the first code didn’t work, try alternatives:

• #3644633## - Display and sensor information
• ##225## - Screen calibration (sometimes displays manufacturer)
• ##6484## - Display test (can show panel model)

On the Redmi Note 7, the following designations are most often found:

⚠️ Note: Some firmware may have the engineering menu blocked. If the codes don't work, try temporarily disabling them. MIUI Optimization in the Developer Settings (Settings) → The phone. → Version. MIUI — Tap 7 times, then return to the additional → For developers).

Method 2: Diagnostic applications (AIDA64, CPU-Z, MTK Engineer)

If the engineering codes are not working, you can use third-party utilities.

• 📱 AIDA64 — Shows a display model in the Display section → Panel.Look for Manufacturer or Panel strings ID.
• 📱 CPU-Z — Display information is in the Device tab (display section).
• 📱 MTK Engineer Mode – for devices running the Snapdragon 660 processor (like the Redmi Note 7) the version is suitable MTK Engineer Mode (Qualcomm) Go to Hardware Testing → Display.

An example of the mapping in AIDA64:

Display:


Resolution: 1080x2340




Density: 403 dpi




Panel: BOE NT36672A (FHD+)




Manufacturer: BOE Technology Group Co., Ltd.

If the app only displays a panel model (e.g., NT36672A), it can be decrypted:

• NT36672A — BOE.
• AMS643JE01 or AMS643JF01 is Samsung.
• FT8719 — Tianma.

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If the app doesn't show the manufacturer, try updating it to the latest version or installing an alternative (like DevCheck). MIUI.

Method 3: Visual inspection (without disassembling the phone)

You can identify the screen manufacturer without any special tools, by external signs.

Illumination on a white background (BOE stained)|Screen angles when viewed from an angle (Samsung has less distortion)|Maximum brightness (Tianma is usually below 450 nits)|Black on AMOLED-test BOE grayish)-->

Test the uniformity of the lighting:

1. Open any white image (e.g., an empty document in Google Docs).
2. Set the brightness to 100%.
3. Look at the screen at a 45° angle:

Another test is to check the color black:

1. Open a black image (for example, wallpaper "AMOLED Black").
2. Light the flashlight at an angle:

Method 4: Disassembling the phone (for power users)

If the software methods didn't work, you can look under the case. Attention: this method requires accuracy and violates the tightness of the device. If you disassemble the device incorrectly, you risk damaging the plumes or losing water protection (if any).

Instructions:

1. Turn off the phone and remove it. SIM-map.
2. Heat the back cover with a hairdryer (temperature not higher than 60°C) or use a plastic shoulder blade for neat tweaking.
3. Remove the cover starting at the bottom edge (there are usually latches).
4. Disconnect the battery (required!), then find the display plume.
5. On the back of the screen, there should be a labeled sticker. Look for the labels: SDC, AMS - Samsung. BOE, NT36672 - BOE. TM, FT8719 - Tianma.

⚠️ Note: Some Redmi Note 7 batches (especially those released in 2019) may have their markings painted over or missing: 🟢 Green - Samsung. 🔵 Blue — BOE. ⚫ Black is Tianma or CSOT.

Method 5: Serial Number Verification (IMEI)

Some users claim that the screen manufacturer can be identified by IMEI or serial number, which is partly true – Xiaomi does tie batches of displays to certain ranges of serials, but this information is not officially published.

How to check:

1. Find out your phone’s IMEI: *#06# or in Settings → About Phone → General information.
2. The first 8 digits of the IMEI are model and batch. For example: 86952404... is a high probability of a Samsung screen (early batches of 2019). 86370804... is most often BOE (mid-2019). 86765104... is Tianma or CSOT (late batches).

Settings → About the phone → Date of production

Samsung

Databases such as IMEI.info or SNK.to can be used to better link, but they do not always contain information about the display manufacturer, 4PDA or XDA Developers).

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The serial number and IMEI only give indirect data. Use an engineering menu or disassembly for 100% accuracy.

Redmi Note 7 screen comparison: which is better?

If you have not decided on a manufacturer or are planning a replacement, here is a comparison table of characteristics:

Selection recommendations:

• 📱 For gaming and multimedia – Samsung (best color reproduction and brightness).
• 📱 For budget replacement — BOE (cheaper, but with compromises in quality).
• 📱 For maximum autonomy, avoid Tianma (high power consumption).

If you’re buying a used Redmi Note 7, be sure to check the screen for broken pixels with the Dead Pixel Test app. Tianma and BOE panels are more likely to suffer from this problem, especially after a year of use.

FAQ: Frequent questions about Redmi Note 7 screens