XIAOMI Poco X8 Pro Max 5G Smartphone User Manual

1. はじめに

This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your XIAOMI Poco X8 Pro Max 5G smartphone. Please read this guide thoroughly to ensure optimal performance and longevity of your device.

Figure 1: XIAOMI Poco X8 Pro Max 5G Smartphone (Black)

Figure 2: XIAOMI Poco X8 Pro Max 5G Smartphones (Multiple Colors)

2. 箱の中身

Upon unboxing your XIAOMI Poco X8 Pro Max 5G, verify that all the following items are included:

• XIAOMI Poco X8 Pro Max 5G Smartphone
• 電源アダプター（100W）
• USB Type-Cケーブル
• 携帯ケース
• SIM取り出しツール
• クイックスタートガイドと保証書

3. セットアップ

3.1. SIMカードのインストール

The Poco X8 Pro Max 5G supports Dual SIM (nano SIM + nano SIM or nano SIM + eSIM). Use the provided SIM ejector tool to open the SIM tray. Insert your nano SIM card(s) into the tray. Ensure the SIM card is correctly oriented before reinserting the tray into the device.

3.2. ネットワーク互換性

This device is designed for specific network compatibility. Please review the following chart to confirm your carrier is supported.

図3: キャリア互換性情報

対応キャリア（米国）: T-Mobile, Mint, Tello, Ultra. Works with any GSM carrier outside the USA. The phone requires a pre-activated SIM card. FCC ID: 2AFZZPC0AG.

互換性のないキャリア（米国）: Verizon、AT&T、Xfinity、Boost、Virgin、Visible、Cricket、およびその他の CDMA キャリア。

3.3. 初回電源投入

Press and hold the power button located on the side of the device until the XIAOMI logo appears. Follow the on-screen instructions to complete the initial setup, including language selection, Wi-Fi connection, and account setup.

3.4. デバイスの充電

Connect the USB Type-C cable to the phone's charging port and the other end to the 100W power adapter. Plug the adapter into a power outlet. The device supports 100W HyperCharge for rapid charging. Smart charging features are integrated to optimize battery health and temperature.

3.5. スクリーンプロテクター

The device comes with a pre-installed screen protector. If you choose to replace it with a third-party protective film or tempered glass screen protector, be aware that it could potentially affect your ability to unlock the screen using the in-display fingerprint sensor.

4. デバイスの操作

4.1. 表示機能

The Poco X8 Pro Max 5G features a 6.83-inch 1.5K 120Hz AMOLED display with a resolution of 2772 x 1280 pixels. It offers a contrast ratio of 8,000,000:1 and a peak brightness of 3500 nits (HBM brightness: 2000 nits, Typical brightness: 800 nits). The display supports 12-bit color depth, 68 billion colors, DCI-P3 wide display 2.0, HDR10+, and Dolby Vision. It is TÜV Rheinland Low Blue Light (Hardware Solution) Certified, Flicker Free Certified, and Circadian Friendly Certified, and protected by Corning Gorilla Glass 7i.

4.2. 生体認証セキュリティ

The device includes an ultrasonic in-display fingerprint sensor for secure unlocking. Additionally, AI Face Unlock is available for convenient access.

4.3. オペレーティングシステム

The smartphone runs on HyperOS based on Android 16, providing a smooth and intuitive user experience.

4.4. カメラの使用

The device is equipped with a 50MP main camera featuring a Light Fusion 600 image sensor, 1.6μm 4-in-1 Super Pixel, f/1.5 aperture, 1/1.95" sensor size, 6P lens, and Optical Image Stabilization (OIS). An 8MP ultra-wide camera with f/2.2 aperture is also included. Rear camera photography features include Dynamic shots, Motion capture, Documents mode, Motion tracking focus, Portrait mode, Pro mode, 50MP mode, Voice shutter, HDR, Panorama, Long exposure, and Timed burst. Video recording supports 4K (3840x2160) at 30/60 fps, 1080p at 30/60 fps, and 720p at 30 fps, with slow-motion options.

4.5. 接続性

The Poco X8 Pro Max 5G supports Wi-Fi 7/6/5/4 and 802.11a/b/g, including Multi-Link Operation, 2x2 MIMO, 8x8 Sounding for MU-MIMO, Wi-Fi Direct, and Miracast. Bluetooth 6.0 with Dual-Bluetooth supports SBC / AAC / LDAC / LHDC 5.0 / LC3 / ASHA / Auracast. NFC functionality is also available.

5. メンテナンス

5.1. 冷却システム

The device incorporates a POCO 3D IceLoop cooling system with a 5800mm² ultra-large LHP area and an 11000mm² graphite layer to efficiently dissipate heat and maintain performance, especially during intensive tasks like gaming.

5.2. バッテリーのお手入れ

The massive 8500mAh (typical) battery provides extended usage. To prolong battery life, utilize the smart charging feature which intelligently adjusts charging speed based on battery level, temperature, and app usage. Avoid exposing the device to extreme temperatures.

5.3.クリーニングと保管

Clean the device with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials. Store the device in a cool, dry place away from direct sunlight and extreme temperatures.

6。 トラブルシューティング

6.1. デバイスの電源が入らない

• バッテリーが充電されていることを確認してください。デバイスを充電器に少なくとも30分間接続してください。
• 強制的に再起動するには、電源ボタンを 10 ～ 15 秒間押し続けます。

6.2. ネットワーク接続の問題

• SIM カードが正しく挿入され、アクティブ化されていることを確認します。
• キャリアがデバイスと互換性があるかどうかを確認します (セクション 3.2 を参照)。
• 機内モードのオン/オフを切り替えます。
• Reset network settings in the device's settings menu.

6.3. 指紋センサーが動作しない

• 指が清潔で乾燥していることを確認してください。
• Re-register your fingerprints in the security settings.
• If using a third-party screen protector, it might interfere with the sensor.

6.4. 過熱

• Close background applications that consume high resources.
• 直射日光や高温の環境でのデバイスの使用は避けてください。
• Ensure the device's cooling vents (if any) are not obstructed.

7. 仕様

8. 保証とサポート

8.1. 製品保証

The XIAOMI Poco X8 Pro Max 5G comes with a 30-day warranty from the date of purchase. Please retain your proof of purchase for any warranty claims.

8.2. ソフトウェアの更新

XIAOMI provides 4 years of OS updates and 6 years of security patches for the Poco X8 Pro Max 5G, ensuring your device remains up-to-date and secure for an extended period.

8.3. カスタマーサポート

For further assistance, technical support, or service inquiries, please refer to the official XIAOMI support channels or visit their website. Contact information can typically be found in the Quick Start Guide or on the manufacturer's official webサイト。