#my fc started smoking after installing ImpulseRC Driver Fixer
1 messages · Page 1 of 1 (latest)
It was probably dead/dying before you plugged it into usb, that's why you didn't have osd
@tender belfry
How did ImpulseRC Driver Fixer make a 5v regulator smoke??
it didn't. You're just making a completely random conjecture based on things that didn't even happen at the same time.
I thought maybe the battery has to be plugged in for it to detect my fc, so I plugged it in
this is the last thing that happened which is in any way relevant to the 5V regulator
so I fried something?
but i plugged it in before installing ImpulseRC Driver Fixer, and it worked perfectly well.
there wasn't any smoke
there wasn't any smoke yet
time is the factor
not IRC Driver fixer
the driver fixed shoves stuff around on your PC, it doesn't do anything to the FC aside from telling it to go into Bootloader mode, which is a betaflight function.
After putting everything together, I plugged in my 6s battery, nothing went wrong
the drone started up and the beeper beeped like normal, but there was a small problem when I looked into my DJI goggles.
this is the smoking gun
you plugged in your 6S battery and you didn't see anything go wrong at first glance
yet something did go wrong, killing your FC in that moment already
the FC was already dead from that moment on
so it's just come to it's deadline after installing ImpulseRC Driver Fixer, even thought ImpulseRC Driver Fixer had nothing to do ith it
the FC released the smoke the 2nd time you plugged the battery in
not "after IRC driver fixer", but "after plugging the battery in for the 2nd time"
so why did the 5v regulator smoke then?
because you messed up something during the rewire
it died on the 1st battery plug in, and then it went up in smoke because it was dead on the 2nd battery plugin
the fact that the FC was not recognised BEFORE you ran IRC driver fixer is smoking gun #2
there was nothing messed up. No short circuit, no loose cables touching other contacts, no strands of tiny sillicon wire laying around or solder blobs
if the FC worked with the PC before, that wouldn't change all of a sudden
also, IRC driver fixer is necessary for firmware update. Basic connection works without fixing drivers on the vast majority of FC's.
No short circuit
that's what you think, the FC may have a different opinion
bent connector pin, solder blob, current running through the frame (CF is conductive you know), a component dying and taking the FC with it....
either way it doesn't matter
all I came here to do is to tell you that your blaming IRC Driver fixer for a clearly hardware issue that was present well before it was even ran is stupid
What could I do to fix it?
disconnect stuff from the FC
check every single component that's powered by 5V for a short circuit on the power wires
check the ESC to FC cable and connectors (the on-board ones) for damage - bent pins are not unusual and they can fry a FC
this is a little hard for me to understand
check for anything that's directly contacting the frame
correlation is not causation
just because two things appear to have happened at a similar time, it doesn't mean that they're responsible for one another
the pins are all good. nothing bent
Your thinking that you need to use IRC Driver fixer is actually a symptom of the FC already being dead.
yea I figured
well I failed to notice that earlier
may I ask something
well, dead is an exaggeration - the 5V regulator could've just been overloaded to such a low voltage that the FC wasn't booting
it blew up on the n-th plug in because that's just what happens with overloaded components
they work until they don't
shoot
can the fc 5v regulator die because of one of the resistors (or diodes) on the ESC board is damaged?
certainly
if you short or damage the wrong [capacitor, resistor, diode], all kinds of things can blow up
things can cascade even
there's 2 of them quite physsically damaged
so.. buy a new stack?
whether they were the culprits or the victims
the ESC might still be alive
I would be concerned about anything that takes 5V power however.
What are you running from 5V?
might be wise to check the wiring there
Crossfire Receiver
buzzer, leds, ...?
yeah a buzzer
and that's it from 5v pads
all of those things are working properly
no they are
?
the gps works
did you try them with something else?
and the crossfire receiver works too
the beeper..
it never beeped when I plugged my drone in for the 2nd time
hmm honestly I'm thinking that this may be the 2 damaged resistors on the ESC board
if you messed something up on the ESC, that could have caused a problematic voltage to make its way to the FC on its data wires
blowing the main FC chip
which would then blow the 3.3V regulator
which would then blow the 5V regulator
cascading
seen that before
new stack then 🙃
but what if my method of using compressed air or looking around the board to check for short circuit is inneficcient?
compressed air doesn't do much
I should learn how to check with multimeter or something.
if there was water or something like that, it can hide under chips for a long while unless you use heat to coax it out
my drone has never been in contact with water
and get all the areas with excess flux or dirt laying around
my guess is a soldering issue of some kind
hmm
maybe
so I guess I'm gonna have to buy a new stack then
to be fully honest, sometimes you just run out of luck
and stuff blows up because f* you that's why
and make sure that NOTHING GOES WRONG
I mean like.. to be extra careful
maybe look for some advice that I don't have the knowledge of to how to properly wire up a new stack
you can always ask for a wiring diagram
it's not about that.
I'm good with wiring/soldering things to where they go
I mean
stuff like
how to make sure nothing is being shorted
idk, I just cover exposed stuff when soldering
maybe with a multimeter
never had an issue with it personally
with what cover?
whatever I have on hand that can withstand solder
kapton tape, heck, even paper
I'd love to see some pictures of your fc
as temporary protection during soldering? No
neither of those are tolerant of high temperatures
they just melt
ah right