Halfords Bicycle Computer, Owner'S Manual

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2. Overview of Button Operation
This computer includes three major display modes as shown below:
Data Setting Mode, General Mode, and Altitude Calibration Mode.
In this section, you'll learn the function of each button in each mode.
The following text lets you know how to use the buttons to operate
the computer step by step.
1. In Data Setting Mode:
Tips: 1. The buttons you'll use in Data Setting Mode: A, B, C.
2. Button for entering or quitting Data Setting Mode: C
3. Button for changing the value of a flickering digit: A
4. Button for switching to the next digit or setting: B
Button A: 1. Press the A button to change the value of a
flickering digit in a loop.
2. If you keep pushing the A button, the digit value will
automatically increase.
3.Release the A button when the required value of a
digit is displayed.
Button B: 1. Press the B button to move to the next digit in a
loop.
2. Push the B button for 1 second to move to the next
setting.