I found one solution for those dead GOPRO hero 3 cameras go here http://fixinghero3.wordpress.com/ I recorded the video and create a blog to help people , because i was desesperate too with my go pro but now after that i update it and works fine more info in the link !! thanks
You can choose your default power up mode in the settings menu. If it's already setup as F (film), then you're holding the power button too long when turning on the camera (if you hold the power button, it will turn on in the next mode after the default power up mode). Try just quickly pressing the power button - this will remedy that one if your default power up mode is already set to F (otherwise, go into settings menu and change it to F).
A couple of my friends' computers don't have the RAM/video card, or whatever is needed to playback HD footage smoothly. There's a ton of data transferring to playback the HD video/audio, and many computers (especially if they're not new, but even many new ones) aren't up to the task. Try playing it from the camera to your TV. Does it play smoothly? If so, it's the computer. This doesn't effect videos you upload to YouTube, etc, it is just frustrating and annoying that it doesn't play smooth and makes editing slower as well. Check out the support page on gopro's website - they have FAQ's, Troubleshooting, etc... tons of helpful info there. Also, most of us who have used gopro gear for a while now are usually happy to help when we see a question we know something about.
Follow these instructions to get the GoPro6 to power on again: Disconnect the camera from any external power source and remove SD card. Remove and reinsert battery. ... If there's still no response, attempt to reset camera by pressing and holding the Mode Button for 8-10 seconds.
GoPro is a series of action camera for outdoor activities, including Hero camera and Karma Drone. But the files in GoPro may be lost because you delete them or format the built-in storage card by mistake. How to recover deleted GoPro files is still little known. You can try some GoPro recovery software first. To avoid things in vain, I would recommend that you use RePicvid Photo Recovery to recover deleted GoPro videos.
RePicvid GoPro Recovery Software is a versatile tool to recover deleted, formatted and lost files from GoPro camera, along with memory card.
Supported model: GoPro Hero 2/3/4/5, GoPro Karma Drone, GoPro Omni, etc.
How to Recover Deleted GoPro Video Files with GoPro Recovery SoftwareStep 1. Connect GoPro to Computer
You can choose to connect the GoPro camera to computer with an USB cable, and make sure it displays as a separate disk on your computer. If not, just remove the microSD card and connect it to computer with a card reader.
Step 2. Scan GoPro Camera for Deleted Files
Run the GoPro recovery software and select the type of files to be restored. Then click the disk where the GoPro camera or SD card is. Next, start scanning the destination disk and find as many files as possible. You can preview the deleted videos after the scan.
Step 3. Recover Deleted GoPro Photo and Video Files
Select the deleted files you want to restore and click "Recover" to choose a storage folder. And the software will begin to recover the selected video files from your GoPro camera.
Note:
1. Before conducting GoPro recovery, you'd better not shoot with your GoPro camera. Although many software claims to be able to recover overwritten files, it depends on the situation.
2. Download the oftware to computer before connecting GoPro to it. Prevent any active processes from writing to the disk.
3. Save the recovered GoPro files to any folder other than target disk.
it may be that the card is not formatted to a file system that is read by both your camera & pc, find a format that works for both, there is Fat16 Fat32, ExFat, & NTFS the last 2 can hold larger files, but a pc should read them all, if your camera has a unique file system then it will never work on your pc.
The only common thing is the cable you use to charge, the connectors on the cable and the connector on the GoPro. So check these if there is no mechanical damage or a blockage by dirt or debris.
GoPro battery dead. Won't charge in the camera. No charge light comes on when you connect the camera to a USB. There's the scenario. Good tip on the GoPro battery shocking technique posted by Rabscuttle above. I discovered that my vehicle USB cigarette lighter adapter drains the GoPro battery when it's turned off. With the GoPro battery completely dead, the camera will not charge it. If the GoPro battery voltage falls below a certain point, the camera's circuitry is set to turn off the internal charger as if there's no battery in the camera at all. The recommended solution is to buy an external charger, which is able to charge a completely dead battery. The battery shocking method saves that expense.
Connecting a 9 volt battery to the GoPro battery for 30 seconds can give the battery enough charge to allow the camera to recognize the battery. A 9 volt battery from a smoke detector, a pair of jumper leads, and two straight pins is what I used to get my GoPro battery charged enough to allow the camera to recognize the battery and begin charging.
Free version does not require activation, but unsure if that will work for you. Web site specifically states there is not any activation code and not supported.
All of its software is "free, freeware, shareware, full version, trial, demo or open-source"
https://www.download.hr/software-digital-tv-2050.html
Step 2. Scan GoPro Camera for Deleted Files
Step 3. Recover Deleted GoPro Photo and Video Files
Note:
