Find a solution, you can have a try:
1. SD Card out
2. Battery out wait 10 seconds
3. Battery in wait 1 minute (this extra time was the key to getting this sequence to work for me)
4. Power up take a photo, power down (you have about a three second window before it goes into Tel mode)
5. Wait 1 min
6. Power up (NB still no SD card)
At this point camera appears to be working stays in normal mode with --- displayed because no SD card is inserted.
Also interestingly plugging a video output cable into HDTV output socket makes camera go to Tel mode AND when you unplug it camera goes back to normal.
However plugging the SD card sends camera into Tel mode permanently. On the plus side this 1-6 sequence was repeatable and worked every time.
From this point I tried many combination's of video cables, SD cards, formatted, erased waiting....then came the USB cable!
7. Connect USB cable to computer (NB still no SD card installed)
8. Insert SD (Computer should detect card and any photos taken should be viewable)
9. "Eject" Camera from Computer USB
10. Disconnect camera from USB (should power down by itself)
11. Power up Camera, Woohoo! it works again!
BTW, if you don't know how to connect GoPro to TV, you guys can check the following guide for help.
Guide: How to Connect GoPro to TV
thats a weird one, here is my best guess. The formatting of the card is not comparable with your computer. so if your men card is fat32 and you try to read on a mac computer for example. can you try it with another computer. Do you know if your card is ntsf formmat
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.
SDHC cards have a slide switch along one edge. The position farthest from the metal contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card.
No direct connection possible right now. Perhaps in the future?
To get your video on the iPad you could use a memory card reader, or a wifi memory card. But both are not capable to stream video streams life.
Perhaps Apple, can be moved to bring a connection tool, for video, but there is noting right now.
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.