This machine after add electric press the power button, observe the boot after the current up to 50 ma paused and then went back to 20 ma, return to zero: after let go. Reaction by the current preliminary judgment, the CPU has been successfully procedure in bring up the boot from the word stock, but made a mistake in the operation. Remove the chords module, fault, also invalid after cleaning the tail plug, remove the tail plug, electrical commissioning, mobile phone can turn on, change the tail after the commissioning, troubleshooting.H8wservice manual download site