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Abnormal
phenomenon
disconnected from
time to time
39．There are lines
on the large screen
when it is not
powered on, but
there are no lines
when it is powered
on
40．Startup error:
com mstar. IWB.
Cause analysis
2. Low version of projection
software
3. 5G hot spot signal weak
1. Indoor light source reflection
2. Toughened glass refracts light.
1. The software operation fails due
to incorrect startup and shutdown
Terms of settlement
2. Open the projection software,
click settings and select Update
projection software version
3. Turn on Android settings,
hotspot network settings, and re
select the channel as any signal.
After saving, turn off the power,
restart the large screen, and then re
pair the projector
1. Remove the indoor light source,
turn off the indoor light, turn off
the curtains
2. Replace the new machine
1. Power off, restart or restore
factory settings
19
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