Denso BTH-300BW User Manual page 132

If an error occurs during uploading
If some error occurs during uploading, the BHT beeps three times and shows one of the following
screens:
To retry the uploading operation, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
Press the C key to return to the SYSTEM PARAMETER transfer menu.
Problem
The memory is insufficient for setting up the BHT system parameter
file to be uploaded.
Solution
Press the C key to return to the SYSTEM MENU, then delete
unnecessary files in the memory. (Refer to Section 2.5.3, [ 9 ].)
Problem
The memory has already contained 120 files, so the BHT system
parameter file cannot be set up.
Solution
Press the C key to return to the SYSTEM MENU, then delete
unnecessary files in the memory. (Refer to Section 2.5.3, [ 9 ].)
Problem
Uploading has failed.
Solution
To retry uploading, press the 1 key.
To return to the SYSTEM MENU, press the 2 key. Check the interface
port, communications parameters, and communications protocol type
in the SET SYSTEM menu or perform the communications test in the
TEST menu. (Refer to Section 2.5.3, [4.5] and [5.7].)
It is also necessary to check the communications parameters setup of
the host computer.
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Chapter 2 Getting Started the BHT and System Mode