System problems

Cannot turn the phone on.

Check the following:

•Make sure that you have put the battery lock in the locked position.

•Is the battery fully charged? Check the battery and fully charge it if necessary.

•Are the battery contact terminals clean? Seek your dealer’s help to clean the terminals.

•If the problem remains, see "Hard reset" on page 15 for more information.

Battery charging problems

Cannot turn the PDA phone on when charging.

Check the following:

This shows that the battery is over-discharged when you find the indicator on the PDA phone turns to orange and the PDA phone cannot be turned on while charging it. When the battery is over-discharged, it loses all its electric power. Please charge the phone for over 30 minutes and the system will boot up automatically.

Cannot turn the PDA phone on after charging for over 30 minutes.

Check the following:

If you find that you still cannot turn the PDA phone on after charging it for over 30 minutes, this means the PDA phone has entered deep sleep mode incorrectly and so cannot be turned on normally. Please note that if there are still some programs running and they are not closed correctly before the PDA phone enters deep sleep mode, the PDA phone will enter sleep mode incorrectly.

Solutions:

Step 1. Press Power.

Step 2. If Step 1 does not work, activate soft reset. For details, see "Soft reset" on page 15. Step 3. If step 2 does not work, activate hard reset. For details, see "Hard reset" on page 15.

When carrying the phone to board a plane:

Check the following:

•Switch the phone to Flight mode.

•Unlock the battery lock to let the phone enter the deep sleep mode.

Troubleshooting information 81

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BenQ P51 System problems, Battery charging problems, Cannot turn the phone on, Cannot turn the PDA phone on when charging
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P51 specifications

The BenQ P51 is a standout device in the realm of portable projectors, designed to deliver exceptional performance and versatility for both personal and professional use. One of its primary features is its Full HD (1080p) resolution capability, which ensures that users can enjoy crystal-clear images and vibrant colors, making it ideal for movie nights, presentations, and gaming sessions. The projector’s compact form factor makes it easily portable, fitting perfectly in a backpack or briefcase, allowing users to take their cinematic experience anywhere.

Equipped with advanced DLP (Digital Light Processing) technology, the BenQ P51 provides high brightness levels, often exceeding 3000 lumens, allowing for use in various lighting conditions, from dimly lit rooms to bright environments. This high brightness combined with a higher contrast ratio enhances the depth and detail of images, resulting in a visually captivating experience.

Another significant characteristic of the BenQ P51 is its multiple connectivity options. It offers HDMI, USB, and wireless connectivity, enabling users to easily connect their laptops, smartphones, tablets, or media players without hassle. This versatility supports a wide range of multimedia formats and enhances interactive presentations, especially with its built-in Wi-Fi capability that allows for seamless streaming.

The projector also boasts impressive battery life, crucial for on-the-go use, offering several hours of projection time on a single charge. This mobility is further supplemented by its user-friendly interface, which simplifies the setup process, making it accessible for users of all technical levels.

Additionally, the BenQ P51 features a built-in speaker that delivers decent audio quality, although users can also connect external audio systems for a more immersive experience. The projector’s lens is designed with a short throw ratio, enabling it to project large images from close distances, making it practical for small spaces.

In conclusion, the BenQ P51 combines portability, high-quality visuals, and versatile connectivity, making it an excellent choice for users seeking a reliable projector for various applications. Whether it's for casual home entertainment or professional presentations, the P51 stands out with its robust features and user-centric design, ensuring that users can project their creativity and presentations with confidence.
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