Introdución
Welcome to the user manual for your HTC One M8 Developer Edition. This guide provides essential information on setting up, operating, maintaining, and troubleshooting your device. The HTC One M8 is a high-performance smartphone featuring a 5.0-inch display, HTC UltraPixel camera, and powered by Android 4.4.2 (KitKat). This Developer Edition is factory unlocked, offering flexibility with various GSM carriers.

Figura 1: Fronte view of the HTC One M8 Developer Edition, showcasinpola súa vibrante pantalla e o seu elegante deseño.
O que hai na caixa
Upon unboxing your HTC One M8 Developer Edition, please verify that all standard components are present. Contents may vary slightly based on region or retailer.
- HTC One M8 Developer Edition Smartphone
- USB Sync/Charge Cable
- Adaptador de cargador de pared
- Ferramenta de expulsión de SIM
- Guía de inicio rápido (física ou dixital)
Configuración
1. Inserir a tarxeta SIM
- Localiza a bandexa da tarxeta SIM no lateral do dispositivo.
- Insira a ferramenta de expulsión da tarxeta SIM no pequeno orificio que hai xunto á bandexa para abrila.
- Coloque a tarxeta Nano-SIM na bandexa cos contactos dourados cara abaixo.
- Empurre suavemente a bandexa cara atrás na ranura ata que encaixe no seu lugar.
2. Asistente de acendido inicial e configuración
- Manteña premido o botón de acendido (situado no bordo superior) ata que apareza o logotipo de HTC.
- Follow the on-screen prompts to complete the initial setup, including language selection, Wi-Fi connection, Google account setup, and data transfer options.

Figura 2: Múltiples views of the HTC One M8, highlighting its slim profile e acabado metálico.
Operando o seu dispositivo
Visualización e navegación
The HTC One M8 features a 5.0-inch Full HD (1920 x 1080) display, offering clear and vibrant visuals. Navigation is primarily touch-based, with on-screen buttons for Home, Back, and Recent Apps. Swipe down from the top of the screen to access the notification panel and quick settings.
Cámara
Equipped with an HTC UltraPixel camera, the device is designed for enhanced low-light performance and faster capture. It records Full HD 1080p video. The Duo Camera setup allows for advanced depth effects and post-capture editing features like UFocus.

Figura 3: Traseira view of the HTC One M8, highlighting the UltraPixel camera and dual-LED flash.
Audio
The HTC One M8 incorporates BoomSound front-facing stereo speakers, delivering rich and immersive audio quality for media playback and calls.
Rendemento e sistema operativo
The device runs on Android 4.4.2 (KitKat) and is powered by a 2.3 GHz processor with 2 GB of RAM, ensuring smooth multitasking and application performance. The HTC Sense user interface provides a streamlined and intuitive experience.
Duración da batería
The HTC One M8 is equipped with a 2600 mAh battery. Through optimized hardware and software, the device offers extended battery life for daily usage, including web browsing, media consumption, and communication.
Conectividade
This factory unlocked device supports GSM carriers such as AT&T and T-Mobile, and is compatible with GSM SIM cards from various prepaid carriers. It will not function with CDMA carriers like Sprint, Verizon, Boost, or Virgin. The phone also supports Wi-Fi connectivity for internet access.

Figure 4: Carrier compatibility chart for the HTC One M8, indicating supported GSM networks and incompatible CDMA networks.
Mantemento
Limpeza do dispositivo
To clean your HTC One M8, use a soft, lint-free cloth. For stubborn smudges, slightly dampen the cloth with water. Avoid using harsh chemicals, abrasive cleaners, or compressed air, as these can damage the device's finish or internal components.
Coidado da batería
To maximize battery lifespan, avoid extreme temperatures. It is recommended to keep the battery charge between 20% and 80% for optimal long-term health. Use only the provided or certified charging accessories.
Actualizacións de software
Regularly check for and install software updates. These updates often include performance improvements, security patches, and new features. You can check for updates in the device's Settings menu under 'About phone' or 'Software updates'.
Resolución de problemas
Problemas comúns e solucións
- Conxelación ou falta de resposta do dispositivo: Press and hold the Power button for about 10-15 seconds to force a restart. If the issue persists, try a factory reset (back up data first).
- Esgotando a batería rapidamente: Check background app usage in Settings > Battery. Reduce screen brightness, disable unnecessary features like GPS or Wi-Fi when not in use, and ensure all apps are updated.
- Problemas de conectividade (Wi-Fi/móbil): Toggle Wi-Fi or Mobile Data off and on. Restart the device. For cellular issues, ensure your SIM card is properly inserted and your plan is active. Verify carrier compatibility (refer to Figure 4).
- Fallos das aplicacións: Clear the cache and data for the problematic app in Settings > Apps. If the issue continues, uninstall and reinstall the app. Ensure the device's operating system is up to date.
Especificacións
| Característica | Especificación |
|---|---|
| Dimensións do produto | 2.78 x 0.37 x 5.76 polgadas |
| Peso do elemento | 5.6 onzas |
| Sistema Operativo | Android 4.4.2 (KitKat) |
| Tamaño de visualización | 5.0 polgadas |
| Resolución | 1920 x 1080 píxeles |
| Velocidade do procesador | 2.3 GHz |
| Tamaño da memoria RAM instalada | 2 GB |
| Capacidade de almacenamento da memoria | 32 GB |
| Características da cámara | HTC UltraPixel, 5 MP, captures Full HD 1080p video |
| Tecnoloxías de comunicación sen fíos | Cellular (GSM), Wi-Fi |
| Jack de audio | 3.5 mm |
| Factor de forma | Bar |
| Cor | Grey (Gunmetal Grey) |
Garantía e Soporte
US Warranty Information
The HTC One M8 Developer Edition comes with a US Warranty. For specific terms and conditions, including coverage details and duration, please refer to the warranty card included with your product or visit the official HTC support websitio.
Atención ao cliente
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact HTC customer support. You can find contact information and additional resources, including a downloadable PDF user manual, on the official HTC website. The PDF user manual can be accessed via this link: HTC One M8 User Manual (PDF).





