User's Manual

6.6 Weak signal

1. If the local network signals are unstable, the signals the mobile phone receives won’t be stable. Please move to

other places and try again.

6.7 Can’t make a call

1. The local network signals are weak and please move to places with strong signals and try again.

2. Local network operator is busy. Please try again later.

3. Check whether Hide Number is enabled. You can’t make a call if the local network operator doesn’t support this

function and you have enabled it.

6.8 Standby time becomes short

1. The standby duration depends on the intensity of local network signal.

2. It is affected by environment temperature, base station distance, etc.

Warning

FCC RF Exposure Information and Statement:

The SAR limit of USA (FCC) is 1.6W/kg averaged over one gram of tissue.

Product, model number: JOY (FCC ID: YPVITALCOMJOY) has also been tested against this SAR limit. The highest

SAR value reported under this standard during product certification for use at the head is

0.338W/kg and when properly worn on the body is 0.646W/kg. The device was tested for typical body-worn

operations with the back of the handset kept 1.5cm from the body. To maintain compliance with FCC RF exposure

requirements, use accessories that maintain a 1.5cm separation distance between the user body and the back of the

handset .The use of belt clips, holders and similar accessories should not contain metallic components in its

assembly. The use of accessories that do not satisfy these requirements may not comply with FCC RF exposure

requirements, and should be avoided.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)

This device may not cause harmful interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

Any Changes or modifications not expressly approved by the party responsible for compliance could void the

user’s authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in

a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed

and used in accordance with the instructions, may cause harmful interference to radio communications. However,