1. Package Contents
Verify that all items are present in your product package:
- 1 x Xiaomi Mi 6X / Mi A2 Cell phone
- 1 x Charger
- 1 x USB Cable
- 1 x SIM Needle
- 1 x Battery (Built-in)
- 1 x User Manual
Additionally, your package may include a screen protector, phone case, and phone stand.
Video description: This video demonstrates the unboxing process of the Xiaomi Mi 6X / Mi A2, highlighting the included accessories such as the Type-C to 3.5mm converter, SIM ejector tool, soft case, charger, and USB Type-C cable.
2. Specifications
Detailed technical specifications for the Xiaomi Mi 6X / Mi A2 smartphone.
Network Technology
| Category | Details |
|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 & CDMA; TD-SCDMA |
| 4G bands | 1, 3, 5, 7, 8, 34, 38, 39, 40, 41 |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat12 600/150 Mbps |
Platform
| Category | Details |
|---|---|
| OS | Android 8.1 (Oreo), planned upgrade to Android 9.0 (Pie) |
| Chipset | Qualcomm SDM660 Snapdragon 660 (14 nm) |
| CPU | Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| GPU | Adreno 512 |
Display
| Category | Details |
|---|---|
| Type | LTPS IPS LCD |
| Size | 5.99 inches, 92.6 cm² (~77.4% screen-to-body ratio) |
| Resolution | 1080 x 2160 pixels, 18:9 ratio (~403 ppi density) |
Main Camera
| Category | Details |
|---|---|
| Dual | 12 MP, f/1.8, 1/2.9", 1.25µm; 20 MP, f/1.8, 1/2.8", 1.0µm, PDAF |
| Features | Dual-LED flash, HDR, panorama |
| Video | 4K@30fps, 1080p@30fps (gyro-EIS), 720p@120fps |
Selfie Camera
| Category | Details |
|---|---|
| Single | 20 MP, f/1.8, 1/2.8" |
| Features | LED flash, Auto-HDR |
| Video | 1080p@30fps |
Sound
| Category | Details |
|---|---|
| Loudspeaker | Yes |
| 3.5mm jack | No |
Battery
| Category | Details |
|---|---|
| Type | Li-Po 3000 mAh, non-removable |
| Charging | Fast charging 18W |
General Features
- Touch Screen: Yes
- Biometrics Technology: Rear-Mounted Fingerprint Sensor
- Charging Interface Type: Type-C
- SIM Card Quantity: 2 SIM Card
- Item Condition: Used
- Supported Languages: Arabic, Polish, German, Russian, French, Korean, Norwegian, Portuguese, Japanese, Turkish, Spanish, Italian, English
3. Setup
SIM Card Installation
Use the provided SIM ejector tool to open the SIM tray located on the left side of the device. Insert your Nano-SIM cards into the tray. Note that this device supports dual SIM cards but does not support microSD for expandable storage.

Image description: A close-up of the left side of the phone showing the SIM tray pulled out, indicating it's a dual SIM slot.
Charging the Device
Connect the provided USB Type-C cable to the phone's charging port at the bottom and the other end to the charger. Plug the charger into a power outlet. The device supports 18W fast charging.

Image description: A close-up of the bottom edge of the phone, showing the USB Type-C port in the center, flanked by speaker grilles.
Ensure you use the correct plug standard for your region. Common plug types include UK, EU, US, and AU.

Image description: A horizontal image displaying four different power plug types: UK Plug, EU Plug, US Plug, and AU Plug.
Powering On/Off
Press and hold the Power button (located on the right side) until the Xiaomi logo appears to power on the device. To power off, press and hold the Power button, then select 'Power off' from the options.
4. Operating Your Smartphone
Navigation and Display
The Xiaomi Mi 6X / Mi A2 features a 5.99-inch Full HD+ IPS LCD display with an 18:9 aspect ratio. It utilizes gesture navigation, allowing you to swipe from the sides for 'back', swipe up from the bottom for 'home', and swipe up and hold for 'recent apps'.

Image description: The front of the Xiaomi Mi 6X / Mi A2 showing its vibrant home screen with app icons.
Biometric Security
The device includes a rear-mounted fingerprint sensor for quick and responsive unlocking. Face unlock is also supported for convenient access.

Image description: The back of the Xiaomi Mi 6X / Mi A2, highlighting the dual camera setup and the circular fingerprint sensor.
Camera Features
The Xiaomi Mi 6X / Mi A2 is equipped with a dual rear camera setup (12MP primary, 20MP secondary) and a 20MP front camera. Both front and rear cameras support Portrait Mode. The camera system utilizes AI to intelligently identify over 200 scenes for optimized photo capture.

Image description: A black Xiaomi Mi 6X / Mi A2 smartphone, showcasing both its front display and the rear camera and fingerprint sensor.

Image description: An angled view of the black Xiaomi Mi 6X / Mi A2, highlighting its slim profile and camera bump.

Image description: A clear rear view of the black Xiaomi Mi 6X / Mi A2, showing the dual cameras, fingerprint sensor, and Xiaomi logo.

Image description: A direct front view of the black Xiaomi Mi 6X / Mi A2, displaying its screen.

Image description: A side profile of the black Xiaomi Mi 6X / Mi A2, showing its thin design.

Image description: Top and bottom views of the black Xiaomi Mi 6X / Mi A2, detailing the ports and buttons.
5. Maintenance
To ensure the longevity of your Xiaomi Mi 6X / Mi A2, keep it clean and free from dust. Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods. Use a soft, dry cloth for cleaning the screen and body. Do not use harsh chemicals or abrasive materials.
Protect your device from drops and impacts. Consider using the provided soft case for added protection.
6. Troubleshooting
Common Issues
- Connectivity Issues: If you experience difficulty connecting to a network, ensure your SIM card is properly inserted and your mobile data or Wi-Fi is enabled. Restarting the device can often resolve minor connectivity glitches.
- Performance Lag: Close unused applications running in the background to free up RAM. Regularly clear cache and temporary files. If issues persist, consider a factory reset after backing up your data.
- Battery Drain: Reduce screen brightness, disable unnecessary background app refresh, and turn off Wi-Fi, Bluetooth, or GPS when not in use. Limit usage of power-intensive applications.
Important Note on Software
Please be aware that this is a used phone flashed with global firmware from the Chinese version. As a result, NFC and Google Pay functionalities are not available, and the system does not support future software upgrades. This means the device will remain on Android 8.1 (Oreo).
7. User Tips
- Screen Size: The device features a 5.99-inch display, offering ample screen real estate for media consumption and daily tasks.
- Used Device Status: As this is a used phone, minor cosmetic imperfections may be present. Functionality is tested to ensure proper operation.
8. Support
For further assistance or technical support, please contact the seller or refer to the official Xiaomi support resources available online. Ensure you have your product model and serial number ready when seeking support.
This manual provides general instructions. Specific features and performance may vary slightly based on software version and usage.