Samsung SCH-R720ZAAMTR - Manual (Page 13)

Getting Started 9
Non-Supported Batteries
Samsung handsets do not support the use of non-approved
batteries.
Important!: Using a non-supported battery may damage your phone.
When using a non-supported battery you will hear a series of
beeps and see a warning message:
“UNABLE TO CHARGE NON-SUPPORTED BATTERY. SEE USER
MANUAL”
If you receive this warning, battery charging has been disabled.
Samsung charging accessories, such as the charging head and
cigarette lighter adapter, will only charge Samsung-approved
batteries.
Note: When using a non-supported battery, the phone can only be used for
the duration of the life of the battery and cannot be recharged.
Turning Your Phone On and Off
Turning Your Phone On
ᮣ Press and hold the Power/Lock key for three
seconds.
Note: Your phone’s internal antenna is located along the bottom back of the
phone. Do not block the antenna; doing so may affect call quality or
cause the phone to operate at a higher power level than is necessary.