Gopro wont turn on and flickers red when plugged in
Hi, sorry for the long post, I just included everything I could think of incase it helps.
I bought a spares and repairs original gopro hd hero off ebay, listed as just not turning on.
I've been trying to find out what's wrong with it but I've come to a point where I don't know what to try next.
Here's what I've done so far:
When I got it a few days ago I tried plugging it into a 1 amp usb plug. As I insert the usb into the gopro the red light on the front flashes but once the usb is fully in, the light weakly flashes for a few seconds or just goes straight out. Wiggling the usb around in the port on the also makes the light flicker. I've tried leaving the usb part way in to keep the light on but it always just flashes once then goes out. Strangely, the light also flickers when I turn the plug on at the wall, without touching the usb.
I have just now used a voltmeter across the positive and negative battery pins while the camera is plugged in without the battery to see if any power is getting through them. Suprisingly it measures around 1.4 -1.6 regardless of whether the red led is on or off. Wiggling the usb around in the gopro does make the voltage jump down the 0 and back up again.
Does this mean that the usb port is not in fact completely faulty and some power is actually going through to charge the battery?
After the gopro wouldn't charge through the usb port (at least I'm assuming it's not charging as the red light doesn't stay on) I assumed that the usb port must be broken and it's not turning on because the battery is dead and can't be charged. So I bought a wall charger to charge the battery externally. I used that to fully charge the battery (I also made sure that it was fully charged by checking with the volt meter). The gopro still won't turn on and behaves exactly the same as before.
To find out if maybe the battery is just broken I would need to try another battery, which unfortunately I don't have. I do however have lots of 500mah 3.7v lipos for micro drones so I made an adapter for one of those so I can connect it with the +ve and -ve battery contacts on the gopro - see pic. Even powering it like this it wouldn't turn on.
Or would using a makeshift battery like that never work, and should I just buy a new proper battery?
Would it be worth trying to power the gopro through the hero port?
Thanks a lot for any help at all with this!
Is this a good question?