HTC DIAM400 Cell Phone User Manual


 
7
To assure optimal phone performance and ensure 
human exposure to RF energy is within the guidelines 
set forth in the relevant standards, always use your 
device only in its normal-use position. Contact with the 
antenna area may impair call quality and cause your 
device to operate at a higher power level than needed. 
Avoiding contact with the antenna area when the 
phone is IN USE optimizes the antenna performance 
and the battery life.
Antenna location
General Precautions
Avoid applying excessive pressure to the device
Do not apply excessive pressure on the screen and the device to prevent damaging them and remove the 
device from your pants’ pocket before sitting down. It is also recommended that you store the device in a 
protective case and only use the device stylus or your finger when interacting with the touch screen. Cracked 
display screens due to improper handling are not covered by the warranty.
Device getting warm after prolonged use  
When using your device for prolonged periods of time, such as when you’re talking on the phone, charging 
the battery or browsing the web, the device may become warm. In most cases, this condition is normal and 
therefore should not be interpreted as a problem with the device.
Heed service markings
Except as explained elsewhere in the Operating or Service documentation, do not service any product 
yourself. Service needed on components inside the device should be done by an authorized service 
technician or provider.
Damage requiring service
Unplug the product from the electrical outlet and refer servicing to an authorized service technician or 
provider under the following conditions:
Liquid has been spilled or an object has fallen onto the product.
The product has been exposed to rain or water.
The product has been dropped or damaged.
There are noticeable signs of overheating.
The product does not operate normally when you follow the operating instructions.
Avoid hot areas
The product should be placed away from heat sources such as radiators, heat registers, stoves, or other 
products (including amplifiers) that produce heat.
Avoid wet areas
Never use the product in a wet location.
Avoid using your device after a dramatic change in temperature
When you move your device between environments with very different temperature and/or humidity ranges, 
condensation may form on or within the device. To avoid damaging the device, allow sufficient time for the 
moisture to evaporate before using the device.
NOTICE:  When taking the device from low-temperature conditions into a warmer environment or from high-temperature 
conditions into a cooler environment, allow the device to acclimate to room temperature before turning on 
power.