![background image](http://html1.mh-extra.com/html/fly/f351/f351_user-manual_2311034047.webp)
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or ‘Basic panel’, as you wish.
Calculator panels
Two calculator’s panels are available: basic and advanced. Use the
Basic panel to enter numbers and perform basic addition, subtraction,
multiplication, and division. Use the Advanced panel to insert advanced
operators or delimiters, such as sine, cosine, tangent, square root,
parentheses, etc.
Switch back and forth between calculator panels by pressing MENU and
selecting ‘Advanced panel’ or ‘Basic panel’, as you wish. As soon as you
select an advanced operator, the panel switches back to Basic, where
your operator appears.
To delete numbers, one at a time, touch CLEAR on the screen.
To clear your operation history, press MENU and select ‘Clear history’.
9.4 Download
To store the download files by the Browser.
9.5 SIM card
The functions provided by the network provider.
If the SIM card and network provider do not support the kinds of services,
the user will not be able to use this feature.
Troubleshooting
This section lists some problems that you might meet while using your
phone. If you feel that your phone do not operate normally, please reset
settings first, and then follow Troubleshooting Guide. If you are still
unable to solve problems, please contact the authorized service center
or the store from where you purchased the phone.
1. My Phone would not power on?