Indledning
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.

Figur 1: Forside view of the HTC One M8 Developer Edition, showcasindens livlige skærm og elegante design.
Hvad er der i æsken
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
- Vægopladeradapter
- SIM Ejector Tool
- Lynstartguide (fysisk eller digital)
Opsætning
1. Isætning af SIM-kortet
- Find SIM-kortbakken på siden af enheden.
- Indsæt SIM-kortudløserværktøjet i det lille hul ved siden af bakken for at åbne det.
- Placer dit Nano-SIM-kort i bakken med de gyldne kontakter nedad.
- Skub forsigtigt bakken tilbage i åbningen, indtil den klikker på plads.
2. Guide til første opstart og opsætning
- Press and hold the Power button (located on the top edge) until the HTC logo appears.
- Follow the on-screen prompts to complete the initial setup, including language selection, Wi-Fi connection, Google account setup, and data transfer options.

Figur 2: Multiple views of the HTC One M8, highlighting its slim profile and metallic finish.
Betjening af din enhed
Display og navigation
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.
Kamera
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.

Figur 3: Bagside view of the HTC One M8, highlighting the UltraPixel camera and dual-LED flash.
Lyd
The HTC One M8 incorporates BoomSound front-facing stereo speakers, delivering rich and immersive audio quality for media playback and calls.
Performance and Operating System
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.
Batterilevetid
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.
Forbindelse
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.
Opretholdelse
Rengøring af din enhed
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.
Batteripleje
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.
Softwareopdateringer
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'.
Fejlfinding
Fælles problemer og løsninger
- Enhed fryser eller reagerer ikke: 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).
- Batteriet aflades hurtigt: 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.
- Forbindelsesproblemer (Wi-Fi/Mobil): 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).
- Apps der går ned: 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.
Specifikationer
| Feature | Specifikation |
|---|---|
| Produktdimensioner | 2.78 x 0.37 x 5.76 tommer |
| Varens vægt | 5.6 ounce |
| Operativsystem | Android 4.4.2 (KitKat) |
| Skærmstørrelse | 5.0 tommer |
| Opløsning | 1920 x 1080 pixels |
| Processorhastighed | 2.3 GHz |
| Installeret RAM-hukommelsesstørrelse | 2 GB |
| Hukommelseslagringskapacitet | 32 GB |
| Kamerafunktioner | HTC UltraPixel, 5 MP, captures Full HD 1080p video |
| Trådløse kommunikationsteknologier | Cellular (GSM), Wi-Fi |
| Lydstik | 3.5 mm |
| Formfaktor | Bar |
| Farve | Grey (Gunmetal Grey) |
Garanti og support
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 webwebsted.
Kundesupport
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).





