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（2） MM UPGRADE (Transistor Detector)
a. Use the Type-C data cable with D+ and D- to connect the meter and the
computer in the off state
b. Press and hold the down arrow key, turn it on, wait for about 2s, and
observe whether there is a U disk named "MM BOOT" on the computer
(at the same time, the lower left corner of the screen displays: MM Boot),
if not, repeat steps A and B
c. Copy the firmware file starting with MM into the U disk to complete the
upgrade
NOTE: After the upgrade is complete, the system will automatically restart.If you
do not need to upgrade, you can short press the power button to reset the
system or long press the power button to shut down
PAGE
A：When the battery is fully charged, the charging indicator will change from red
to green
2: Why does the tested waveform keep shaking left and
right and cannot be fixed?
1: How to judge whether the battery is fully charged?
A：The trigger voltage needs to be adjusted, that is, the yellow arrow on the
right.In trigger mode, press the up and down keys to adjust the trigger voltage.
After adjusting the yellow pointer between the upper and lower part of the
waveform, the waveform can be triggered and fixed
A: The battery voltage signal is a stable DC signal, and there is no curve
waveform.When adjusting the vertical sensitivity in DC coupling mode, there
will be an upward or downward offset line waveform.If it is AC coupled, there
is no waveform no matter how you adjust it
3: Why is there no waveform when measuring a battery
or other DC voltage?
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