How to increase the brightness of the screen on Xiaomi Mi Band 2: from adjustment to repair

Why Xiaomi Mi Band 2 has a dim screen and how to fix it

The Xiaomi Mi Band 2 screen can dim over time, one of the most common problems for the wearer of this fitness bracelet, ranging from the banal (a discharged battery or a contaminated display) to the technical (wearing LEDs or a firmware failure), and 80% of the time, the brightness is returned by software, but sometimes requires physical intervention.

In this article, we’ll look at all the working methods, from adjusting through the Mi Fit app to flashing your device, and how to tell a software failure from a hardware breakdown and when to carry a bracelet to the service. If your Mi Band 2 has become poor at displaying time or notifications even when fully charged, the following instructions will help to restore the clarity of the screen.

⚠️ Important: Before you start the manipulation, check that the problem is not mechanical damage. If the display shows scratches, cracks or traces of moisture, adjusting the brightness will not help - you will need to replace the screen module.

Method 1: Adjust brightness through the Mi Fit app

The easiest method is to use the official Mi Fit app (or its alternative Mi Band Master), which in new versions of the software has hidden the brightness control option, but it can be activated through a hidden menu.

Instructions:

1. Open the Mi Fit and connect to the bracelet.
2. Go to Profile → Xiaomi Mi Band 2 → Additional settings.
3. Tap 5 times on the Screen (or Display in older versions).
4. The brightness slider will appear - move it to the maximum value.

If the option is not activated:

• 🔄 Update Mi Fit to the latest version in Google Play or App Store.
• 📱 Reconnect the bracelet to your phone (forget the device in Bluetooth settings and pair again).
• 🔌 Make sure the bracelet is over 20% – when the battery is low, the brightness automatically decreases.

Charge the bracelet to 50% |

Update the Mi Fit| app

Reboot your smartphone |

Check the stability of the Bluetooth connection-->

Method 2: Resetting settings to factory

If the adjustment through the app didn’t work, try resetting the bracelet to factory settings, which will delete all user data, but often solves backlight problems caused by software failures.

How to Reset Mi Band 2:

1. On the bracelet swipe down to the item Still (or More).
2. Select Reset and confirm the action with a long press of the button.
3. After restarting (it takes ~30 seconds), re-pair the bracelet with the phone via Mi Fit.

⚠️ Warning: After resetting, all steps, sleep and workout data will be deleted. If they are important, pre-sync the bracelet with the app.

Method 3: Update the firmware through the Mi Band Tool

Outdated firmware may limit the maximum brightness of the screen. Official updates for the Mi Band 2 have not come out for a long time, but enthusiasts create custom versions with bugs fixed.

You'll need firmware.

• 📱 Android smartphone (version 6.0 and higher).
• 🔌 Mi Band Tool app (download only from official source!).
• 🔋 Bracelet charge of at least 60%.

Step-by-step:

1. Install the Mi Band Tool and provide all the permissions you request.
2. Connect the bracelet through the original Mi Fit app.
3. In Mi Band Tool, go to firmware → Select a file and download the current version for Mi Band 2 (e.g. 1.0.5.14).
4. Click Install firmware and wait until it is completed (the bracelet will reboot 2-3 times).

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Before you run the firmware, back up the bracelet data via Mi Fit → Device Profile → Data Export. This will save your activity history.

⚠️ Warning: Do not interrupt the firmware process or remove the bracelet from the range of Bluetooth. In the event of a failure, the device can turn into a “brick” (will not respond to charging or buttons).

Method 4: Cleaning contacts and checking the battery

If the software methods didn't work, the problem could be the hardware, and most of the time, it's the fault of:

• 🔋 Battery discharge – when the charge level is below 15%, the brightness automatically decreases.
• 💧 Contact oxidation – due to sweat or moisture, the connections between the board and the screen are disrupted.
• 🔧 Weakened plume – if the bracelet was dropped frequently, the connector could move away.

How to clean your contacts yourself:

1. Carefully open the body of the bracelet with a plastic spatula (start from the side of the button).
2. Remove the battery and wipe the contacts with an alcohol tampon (do not use acetone!).
3. Check the density of the adhesive plume of the screen - if necessary, gently press it.
4. Collect the bracelet and check the brightness.

If the problem persists after cleaning, measure the battery voltage with a multimeter. The normal value is 3.7-4.2 V. At an indicator below 3.4 V, the battery needs to be replaced.

No, never.|

Yeah, but wiped it fast.|

Yeah, and then the screen started to dim.|

I remember.-->

Method 5: Replace the screen or LEDs

If all previous methods failed, the screen module itself or the backlight probably failed, and then you'll need to replace the parts.

For self-replacement of the screen will need:

• 🛠️ Setting screwdrivers T4/T5.
• 🔥 A dryer for softening glue (or plastic shoulder blade).
• 🔋 New screen module for Mi Band 2 (you can buy on AliExpress or in service centers).

Critical information: when changing the screen, it is easy to damage the flexible plume. If you have never repaired electronics, it is better to consult specialists - the cost of the error (map breakage) can exceed the price of a new bracelet.

Frequent Mistakes and How to Avoid Them

When trying to increase brightness, users often make critical errors that exacerbate the problem.

1. Using unofficial firmware from unknown sources, which can lead to a complete loss of functionality of the bracelet, 4PDA or XDA Developers).
2. Disassemble the bracelet without turning off the battery. Short circuits when cleaning the contacts will disable the power controller. Always disconnect the battery before manipulation.
3. Ignoring Mi Fit updates: Older versions of the app (up to 4.6.0) do not support brightness adjustment for Mi Band 2.

⚠️ Warning: If the bracelet stops turning on after firmware, don't try to repeat the process. Connect the device to charge for 2-3 hours, sometimes it helps to restore performance.

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Before any manipulation of the bracelet, always check the battery power. At a level below 20%, the risk of failure increases 3 times.

FAQ: Answers to Frequent Questions