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6.3 Module problem
The module cannot light up
Check if the DC cable is broken
Check if the flat cable is broken
Check if the module is broken
Check if the last module is broken
The module is blinking
Check if the flat cable is broken
Check if the module is broken
Check if the last module is broken
Block of module is broken or column of module is broken
Check if the driver IC is broken
Check if the soldering of the driver IC is broken
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