unication Messenger m90 - Troubleshooting; Power & Messaging Issues; Battery Performance Troubleshooting

m90User’s Guide
© 2007 Unication Co., Ltd.
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15. Troubleshooting
M90 does not turn on
Device has been turned off. Press ALT then SPACE to turn the
M90 on.
Check the battery: ensure battery is charged, inserted properly,
and that the contacts are clean.
You can’t send messages Check the signal strength meter (if this feature has been enabled
by your service provider). If the signal is weak, move to an open
space or, if in a building, move close to a window.
Check your coverage icon. Ensure you have 2-way coverage; if
not then there may not be network coverage in your area.
Check your transmitter icon. Is the Transmitter Off? If so, turn on.
You can’t receive messages Check the signal strength meter (if this feature has been enabled
by your service provider). If the signal is weak, move to an open
space or, if in a building, move closer to a window.
Check your coverage icon. Ensure you have 2-way coverage; if
not then there may not be network coverage in your area.
Check your transmitter icon. Is the Transmitter Off? If so, turn on.
The battery won’t charge
Check the charger. Ensure the charger is properly plugged in,
and that the wall outlet has power.
Check the battery contacts. Ensure contacts are clean.
Check the battery temperature. If it is warm, let it cool before
recharging.
Is it an old battery? Replace the battery.
Are you using an original Unication battery? The M90 is only
designed to work with Unication lithium ion polymer batteries.
Please note: A fully discharged battery may require charging up
to half an hour before the M90 powers on. For this period of time,
the display will be blank.
The battery loses charge
faster than normal
Are you in an area of variable coverage? This consumes more
power.
Is it a new battery? A new battery needs two to three
charge/discharge cycles to attain normal performance.
Is it an old battery? Battery performance declines after several
years of use.
Are you using your M90 in extreme temperatures? At extremely
hot or cold temperatures, battery performance is significantly
reduced.