All good , I did chase up many of the GoPro Karma engineers, if you look in the right places they are easy to find with the right search term (gotta love LinkedIn). Most of them went to Slido, if you have not looked at there drones they are really worth look at. Biggest issues is they are normally sold out. Bit more expensive than DJI but thats for a reason.
Karma refusing to pair - Reverse engineering investigation
- Thread starter Argiris
- Start date
i think this not a cmos battery, i have measure mine voltage one of them was 1.7 v and other 2.2v but when battery from drone was inserted and drone was powered it had 3.3 v and 3.2v and if you look at the board marking it has ''C'' it more likely this is some capacitor
Likewise, I also have revision board C. What should I do? I'm ready to experiment!
Attachments
cool, video coming soon to guide you through the process. Im just waiting on the next faulty board, hoping it will be before the end of the month.
My motherboard is 10430 Rev D M-173004200. and I haven't SD slot only spot where goes SD card.
Hello. I don't understand what SD you are talking about. in the photo you also have a 3pin connector for debugging
Finally, I assembled a bootable image of the SD card, for flash Karma firmware 
can you share what exactly you are doing? not really possible understand what and were are you connecting and what. thanksFinally, I assembled a bootable image of the SD card, for flash Karma firmware
I write a boot image with the prepared firmware on SD card, connect the test points so that the karma boots from the SD card, and send commands to debugging console, for start the flash (can be automated)
I plan to post complete instructions and necessary files in the near future.
Hi, what was the process in changing the batteries? It looks like it is soldered in with a "bracket that is spot welded to the battery.... Cheers!
Repair with minimal disassembly
SD-Card image (Win32DiskImager)
Any ferrite bead 0603/0805 or zero-ohm resistor
MicroSD Card Connector
Use of this information is entirely at your own risk.
I proposed this method as an option for enthusiasts who are willing to do everything at their own risk and take responsibility for it, but not as a commercial solution.
SD-Card image (Win32DiskImager)
insmod /opt/sentinel/modules/mtd_write_enable.ko
dd-new if=/dev/mtdblock0 of=/home/backup/mtdblock0.bin conv=sync,noerror status=progress
flash_eraseall /dev/mtd0
nandwrite -p /dev/mtd0 /home/orig/mtdblock0.bin Any ferrite bead 0603/0805 or zero-ohm resistor
MicroSD Card Connector
Use of this information is entirely at your own risk.
I proposed this method as an option for enthusiasts who are willing to do everything at their own risk and take responsibility for it, but not as a commercial solution.
Last edited:
Ignore this, it's just a misidentification of NAND.
I change the NAND, but to one identical to the original
what resistor have you used in TP2 ? any specific or just any resistor ?
Any ferrite bead 0603/0805 or zero-ohm resistor
First and foremost, I wanted to express my gratitude for your latest video instructions. I've been eagerly anticipating this and am truly excited to give it a try.
While I'm relatively new to this endeavor, I consider myself adept at following video tutorials. Thanks to dedicated professionals like yourself, I've managed to keep all my other Karma parts up-to-date.
I'm operating on a PC. Could you direct me to any video tutorials for effectively utilizing "GTKTerm"? or any terminal emulator would work?