1. Product Overview
Please read this manual carefully before using the product and keep it in a safe place.

Components:
- Reset button*
- Indicator
- SIM card slot
- Type-C port
- Adhesive sticker
- Power wire (Red)
- Ground wire (Black)
- ACC signal wire (Yellow)
- Type-C connecting cable
* If the product stops responding, press and hold this button to reset it.
Note: Illustrations of the product, accessories, and user interface in the user manual are for reference purposes only. The actual product and functions may vary due to product enhancements.
2. Product Functions
As an accessory to 70mai in-car devices, this product must be used with the main device. After correctly installed and bound in the 70mai app, this product provides the following features:
- Provide power source to the main device.
- Provide Internet service to the main device (When installed with a SIM card).
- Detect the ACC OFF signal when the car engine is turned off, so that the main device will enter parking surveillance mode (Parking surveillance function needs to be enabled in the main device beforehand).
- Provide low-voltage protection to prevent over-discharging of the car battery due to the continuous operation of the main device.
4G Features:

- Instant App Alert: Whenever a collision or suspicious incident happens, it pushes instant notifications via phone.
- App Live Streaming: Enable remote viewing & capturing of photos and videos, which can be uploaded to the cloud.
- Find My Car: The GPS pinpoints the vehicle's precise location. Locating and recovering your vehicle becomes simple and easy.
- Customized Geo Fence: Setting up virtual fences on the map to trigger immediate alert notifications when the vehicle goes beyond the designated area.


3. Installation
Step 1. Selecting the suitable fuse box
Select a suitable car fuse box that contains the following fuses:
- Regular electric fuse with an output voltage of 12-30V.
- ACC power fuse.
Paste the product on the side of the console center which is close to the selected fuse box.
Step 2. Connecting the hardwire kit to the fuse box
Connect the wires of the hardwire kit to the fuses inside of the fuse box in the following way:
- Connect the power wire (Red) to the regular electric fuse with an output voltage of 12-30V.
- Connect the ACC signal wire (Yellow) to the ACC power fuse.
- Connect the ground wire (Black) to the negative terminal or ground of the fuse box.
Note: Before installation and wiring, please turn off the car engine and power to prevent short circuit.
Step 3. Managing cables

- Managing the Type-C connecting cable: Route the Type-C connecting cable along the A pillar, top of the windshield to the main device. You can use the wiring crowbar to hide the cable underneath the vehicle's headliner and rubber seal along the A-pillar.
- Managing the hardwire kit: Route the hardwire kit along the gap between the console center and the A pillar to the fuse box. If the hardwire kit is too long, tie it up, but do not cut it. Cutting the hardwire kit will affect the power and ACC signal to the main device.
Note: The location of the fuse box and the recommended mounting position (position 1 or 2) of the main device may vary from vehicle to vehicle. Please employ a professional technician for mounting according to the vehicle condition. The illustration provided is for reference only.
Installation Guide Video
Video 1: Official 70mai UP04 Hardwire Kit Installation Guide.
4. Binding the Hardwire Kit
This product needs to be bound in the 70mai app so as to provide the Internet service to the main device. Before binding, prepare the followings:
1. Inserting the SIM card
When the engine is turned off, insert the SIM card into the SIM card slot of the hardwire kit.
2. Connecting the hardwire kit and the main device
Refer to the Installation chapter in this user manual, correctly install the hardwire kit and connect it to the main device through the connecting cable.
After the preparations, follow the steps below to bind the hardwire kit.
- Park the car in a place where your phone's Internet signal is good. And then start the car to turn on the main device.
- Add the main device in the 70mai app following the user manual and user guide of the main device.
- Open the 70mai app and enter the plug-in page of the main device, and tap 4G module.
- Bind the hardwire kit following the instructions on the screen. The main device's network service will be available once the hardwire kit is bound successfully.
Note: During the binding, keep your phone close to the main device without obstacles in between.

5. Troubleshooting
Testing circuit and ACC signal:
- Insert the L-shape plug of the connecting cable to the Type-C port of the hardwire kit, and the other plug into the power port of the main device. Start the car engine and wait for the main device to turn on.
- If the main device fails to power on, turn it on manually. If the message "Connect to an external power source" is shown, check if the power wire of the hardwire kit is correctly connected to the regular electric fuse.
- After the main device is turned on, turn off the engine and remove the key. Check if the main device powers off or enters sleep mode. For some cars, the ACC power off signal will only be triggered when the driver seat door is opened after the engine is turned off. Some car models will only trigger the ACC power off signal after the engine has been turned off for a certain period of time. For such cars, check if the main device powers off or enters sleep mode after the ACC power is turned off.
- After the main device powers off or enters sleep mode, restart the engine and check if the main device automatically turns on.
If the above steps can be proceeded correctly, the circuit and ACC signal test is passed.
If the circuit and ACC signal test fails, please check the wiring of the hardwire kit and ensure that the fuse and ground are correctly connected.
If the connection is correct, but the test fails, contact after-sales service for assistance.
6. Maintenance
To ensure optimal performance and longevity of your 70mai 4G Hardwire Kit UP04, consider the following maintenance tips:
- Regular Inspection: Periodically check all cable connections to ensure they are secure and free from damage.
- Keep Clean: Ensure the hardwire kit and surrounding areas are free from dust and debris, which can interfere with performance.
- Firmware Updates: Keep your connected 70mai dash cam's firmware updated to ensure compatibility and access to the latest 4G features and improvements.
7. Precautions
Before using the device, please read all the precautions to ensure correct and safe use.
- Please ask a professional technician to perform the installation. Our company is not liable for any short-circuiting of the car power supply and damage to car battery or interior due to improper installation.
- Our company is not liable for any losses resulting from the installation of the product unless they are caused by product quality issues.
- The performance of this product is affected by the reliability of the car power source, car battery and main device. Our company is not liable for any losses from the malfunction of this product unless it is caused by product quality issues.
- Some cars cannot detect changes in ACC signals when the engine is turned on or off. For such cars, the hardwire kit is unable to transmit ACC signals to the main device. This may cause certain functions to be unavailable.
- Please only use this product for legal purposes.
WEEE Information
All products bearing this symbol are waste electrical and electronic equipment (WEEE as in directive 2012/19/EU) which should not be mixed with unsorted household waste. Instead, you should protect human health and the environment by handing over your waste equipment to a designated collection point for the recycling of waste electrical and electronic equipment, appointed by the government or local authorities. Correct disposal and recycling will help prevent potential negative consequences to the environment and human health. Please contact the installer or local authorities for more information about the location as well as terms and conditions of such collection points.
CE RF Exposure
This equipment complies with CE radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body. The full text of the EU declaration of conformity is available at the following internet address: https://help.70mai.asia/1193.html
8. Specifications
| Feature | Detail |
|---|---|
| Product | 70mai 4G Hardwire Kit |
| Model | Midrive UP04 |
| Input | DC 12-30V |
| Output | 5V === 2.4A |
| Negative Car Power Outlet | GND(-) |
| Positive Car Power Outlet | VCC(+) |
| Car Power | ACC |
| Low Voltage Protection | 11.8V (12V Battery)/23.6V (24V Battery) |
9. Packing List

- 70mai 4G Hardwire Kit × 1
- Type-C connecting cable × 1
- Pin × 1
- User manual × 1
10. User Tips
- A SIM/Nano Card is required for the 70mai 4G Hardwire Kit UP04. This card is not included and needs to be purchased from your local store.
- The 70mai A810 and X200 dash cams feature a free Cloud Album with 520MB of space per user. This album is designed for backing up key video evidence, including parking surveillance videos (triggered by collision detection and motion detection) and user-initiated remote surveillance recordings.
- The LIVE Streaming function can be used 15 times per month, with each session lasting a maximum of 30 minutes.
- The UP04 offers three voltage threshold settings for vehicle battery protection: Low (12.0V/23.6V), Medium (12.2V/24.0V), and High (12.4V/24.4V). Adjust this setting based on your vehicle's battery health and usage patterns.
- Ensure you purchase a SIM card from a local operator that supports 4G functionality in your region for optimal performance.
11. Frequently Asked Questions
Q: What is the function of this 4G Hardwire Kit UP04?
A: In addition to supporting parking surveillance and motion detection, the UP04 also supports 4G functionality. After installing a SIM card, the UP04 enables features such as APP Real-Time Monitoring, Instant APP Alerts, Vehicle Locator, and Cloud Album access.
Q: What is the difference between Hardwire Kit UP02, UP03, and UP04?
A: UP02 and UP03 are standard hardwire kits that do not support 4G. UP04 is a 4G hardwire kit. They are compatible with different 70mai car DVR models:

| Hardwire Kit | Compatible Dash Cams |
|---|---|
| UP02 | A800S, A500S, A200, M200, S500, D06, D07, D10, M300, A400 |
| UP03 | A810, X200, M500 |
| UP04 | T800, X800, A810, X200, A510 |
Please ensure the DVR model matches the hardwire kit before purchase.
Q: Is 4G functionality supported in my country/region?
A: The 4G Hardwire Kit UP04 is supported in various countries and areas. Please refer to the list below. If your country is not listed, 4G functionality may not have been tested by 70mai R&D personnel, and after-sales service for 4G features may not be available. Purchase with caution.
Officially Supported Regions:
- Europe: Poland, Hungary, Slovakia, Czech Republic, Bulgaria, Romania, Ukraine, Belarus, Moldova, Denmark, Norway, Iceland, Finland, Sweden, Lithuania, Latvia, Estonia, Ireland, United Kingdom, France, Netherlands, Belgium, Luxembourg, Switzerland, Liechtenstein, Austria, Monaco, Germany, Portugal, Spain, Greece, Italy, Vatican City, Andorra, North Macedonia, San Marino, Malta, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Serbia, Kosovo, Albania.
- Southeast Asia: Philippines, Vietnam, Laos, Cambodia, Myanmar, Thailand, Malaysia, Brunei, Singapore, Indonesia, Timor-Leste.
User-reported compatible operators (self-tested by buyers, 70mai does not assume responsibility):
- Korea: KT and SK telecom
- Russia: MTS, Beeline, Tinkoff, Megafon (Note: The Russian App does not have a 4G module. For specific solutions, refer to: https://4pda.to/forum/index.php?showtopic=1069477)
- Saudi Arabia: STC telecom
- Israel: Pelephone
- United Arab Emirates: Etisalat
- Brazil: Vivo operator
- Mexico: Telcel, Movistar, AT&T
If you are in Mexico, users have reported compatibility with Telcel, Movistar, and AT&T. For other countries like Jordan, Peru, Ecuador, India, or Sri Lanka, 4G support is not officially confirmed by 70mai, and user experiences may vary.
12. Warranty and Support
For service and support, please contact: help@70mai.com
For further information, please visit the official website: www.70mai.com
Manufacturer: 70mai Co., Ltd.
Address: Room 2220, Building 2, No. 588 Zixing Road, Minhang District, Shanghai, China
The full text of the UKCA declaration of conformity is available at: https://help.70mai.asia/2145.html





