Hardware Kit DVR Xiaomi 70Mai: purpose, configuration and installation rules

Xiaomi 70Mai DVRs have long been popular thanks to a combination of affordable prices, high-quality shooting and advanced features like ADAS or GPS- tracking. However, when buying, many users come across the term hardware kit, which comes in a box or sold separately. What is it, why you need and how to use each element correctly? In this article, we will understand in detail, without water and general phrases.

To be clear, a hardware kit is not just a set of wires, it is a sophisticated system of components that determines the stability of the recorder, the quality of the record, and even the safety of the mount. For example, an improperly installed bracket can cause the device to fall on the go, and poor power can cause malfunctions in the recordings. So it is critical to understand the purpose of each element, especially if you mount the recorder yourself.

What is included in the standard hardware kit Xiaomi 70Mai

The kit may vary slightly depending on the model (e.g., 70Mai Pro, 70Mai Dash Cam 1S or 70Mai Omni), but the base kit usually includes:

• 🔌 Power supply with Micro-USB/Type-C cable (depending on version) and lighter connector 12V/24V.
• 🧲 Magnetic or adhesive bracket for attaching the recorder to the windshield.
• 📶 GPS-module (in models with GPS-tracking support, e.g. 70Mai Pro+).
• 🔧 Tools for installation: double-sided tape, cleaning wipes, cable screeds.
• 📄 Documentation: brief installation instructions and warranty card.

Important: some sets may not have a memory card (you will have to buy it separately, the recommended class is UHS-I U3 or higher), and the latest 70Mai models use a direct connection to the on-board network via fuses instead of a lighter, which requires additional skills when installing.

The purpose of the power supply: why you can not use the “left” charging

The power supply in the hardware kit is not just a recharging adapter, it has three key functions:

1. Voltage stabilization: The vehicle’s on-board network is characterized by jumps from 12V to 14.4V (and in trucks – up to 24V). The original unit smooths these fluctuations, preventing overheating or turning off the recorder.
2. Hypopopole protection: If you confuse the + and − when connected directly, the original adapter will act as a fuse.
3. Support for parking function: In models with Parking Mode, the power supply provides low power consumption in standby mode.

⚠️ Warning: Using non-original chargers (especially cheap ones with AliExpress) can lead to loss of warranty and even fire. In 2023, there were cases of fire recorders 70Mai due to poor quality power supplies from aliexpress. The original adapter is labeled MDZ-12-A or MDZ-24-A (for 24V).

Magnetic vs. glue bracket – which is more reliable?

In the hardware kit Xiaomi 70Mai there are two types of fasteners:

• 🧲 Magnetic bracket: allows you to quickly remove the recorder (for example, at night), but requires a flat metal surface.
• 🧴 Glue bracket: It's more secure, but it's almost impossible to dismantle without damaging the windshield, and it's more commonly used in commercial vehicles.

If you park in unsafe areas, the magnetic mount is more convenient — the recorder can be removed in 2 seconds. For long-term installation (for example, in a taxi), the glue option is better. Note: the magnetic mount loses strength at temperatures below -15 ° C — in the northern regions this can be a problem.

Clean the surface of the glass with an alcohol napkin (included in the kit)

Check the cabin temperature (optimally +10°C...+25°C)

Apply the glue/magnetic base and press for 30 seconds

Do not turn on the glass heating for 24 hours after installation-->

⚠️ Warning: If you use 70Mai Omni (with a rotating camera), the magnetic mount may not be able to withstand the weight of the device when vibrating.

GPS- Module: why you need and how to connect

Not all 70Mai models have built-in GPS (e.g., the base version of the 70Mai Dash Cam 1S does not have one). In such cases, the kit may include an external GPS- module that connects via a Mini-USB or Type-C port.

• 📍 Linking video to coordinates (useful for insurance or litigation)
• 🚗 Display of speed on recording (proof of accident).
• 🗺️ Sync with the 70Mai mobile application to build routes.

How to connect:

1. Find the GPS IN port on the recorder body (usually next to the power connector).
2. Connect the module to the recorder cable from the kit.
3. Attach the GPS-antenna to the torpedo (better close to the windshield for better signal).
4. In the registrar menu, activate the GPS Tracking option.

⚠️ Warning: If the recorder starts to overheat or discharge quickly after the GPS- module is connected, check version compatibility. For example, the module from 70Mai Pro is not suitable for 70Mai Lite — this can cause malfunctions.

Cables and accessories: how to hide the wiring and avoid creaking

One of the most frustrating things about DVR installation is the wires that hang around or creak when you're moving. The Xiaomi 70Mai hardware kit has everything you need to avoid it:

• 🔗 Cable screeds: Lock the wire along the torpedo or rack of a car.
• 🧹 Adhesive clips: attach cable to plastic cabin panels.
• 🔌 Lighter extension (in some sets): allows you to bring the connector to a more convenient place.

Neat stowage scheme:

1. Lay the cable from the recorder along the top edge of the windshield.
2. Lower it down the rack (between the door and the body) to the glove compartment or center console.
3. Fix the screeds every 15-20 cm.
4. Connect to the lighter or on-board network (through the fuse).

⚠️ Warning: Do not run the cable through the movable parts of the cabin (e.g., near the steering wheel or pedals). This may cause a wire to break or short. 70Mai Midrive D08 was a case where a fuse on the onboard network burned due to a worn cable.

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If your car does not have a lighter (for example, in some electric cars), use a direct connection to the battery via the fuse on 5A. The scheme is in the official instructions for the hardware kit.

Update the firmware through the hardware kit: when it is necessary

In rare cases, a hardware kit may be needed to reset or firmware the recorder.

• 🐢 The recorder brakes or spontaneously shuts down.
• 📵 The GPS or Wi-Fi module is not working.
• 🔄 Requires a rollback to a previous version of the software (for example, after a failed update).

This will require:

1. Download the firmware from the official 70Mai website (choose the version for your model!).
2. Format the memory card in FAT32.
3. Place a firmware file (e.g., 70mai_pro_fw.bin) in the card’s root directory.
4. Insert the card into the registrar and hold the Reset button for 10 seconds.

⚠️ Warning: If the recorder is disconnected during firmware, it can turn into a brick. Use only the original hardware kit power supply, which provides a stable voltage even when the onboard network surges.

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Hardware kit firmware should only be used if the software reset (through the menu) did not help, and 90% of the problems are solved by updating through the mobile application.

Frequent Errors When Using a Hardware Kit and How to Avoid Them

Even experienced drivers sometimes make mistakes when installing the Xiaomi 70Mai.

Another common problem is bracket creaks, which occur when:

• The magnetic mounting has weakened (you need to tighten the nut on the back side).
• The adhesive bracket is mounted on an uneven surface (use the aligning pad from the kit).
• The recorder touches plastic parts of the torpedo (adjust the angle of inclination).

FAQ: Answers to popular questions