Manual

29
8.Why does the fast charge protocol automatically detect and
display all red?
Answer: During the test, please do not connect the load. If possible,
test several charging heads. If all the charging heads are all red, and
confirm that these charging heads support fast charging
(QC2.0/QC3.0/FCP/SCP/ Any protocol in AFC/PD), then it is suspected to
be a PCB circuit problem, please check whether the D+D- part is
short-circuited, soldered, etc.