Mitsubishi t300 Manual De Usuario

T

ROUBLESHOOTING

Problem

Possible cause and solution

Phone does not turn on • If the phone is new, see Charging the 

Battery on page 6. Otherwise, recharge or 
replace the battery.

Phone turns on but 
there is no display

• Display contrast is turned down too low. 

Reset contrast (see page 49).

Short standby or talk 
times

• Battery is wearing out. Replace the battery.

Numbers cannot be 
entered into the display

• Keypad lock is turned on (

 is displayed). 

Press  Unlock   , then press  .

Phone numbers cannot 
be dialed

• Call restrictions may be in place. See Call 

Restriction on page 56.

Calls cannot be made or 
received; dropped calls

• The signal strength will depend on your 

location. Check the received signal 
strength indicator 

 and try again after 

the signal strength increases (another bar 
appears). 
In addition to geographic location, the sig-
nal will weaken behind walls, under 
bridges, in tunnels, or other obstructions. 
If problems persist, please call your service 
provider. 

Volume varies/mutes 
briefly

• Audio volume can vary due to a weak 

signal or high speed travel.