how to get to the discord server? is there a link?
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how to get to the discord server? is there a link?
Finally, My Karma is flying... Thank you.If you hit enter it should show you a login screen. If that doesnt work come over to the discord server, I think there was someone there who had an issue with putty not responding to keyboard input. I think they just changed to a different terminal emulation software.
Hi,Is anyone able to provide a MD5 hash for Karma_boot_SD.img ?
I keep getting no data in the serial terminal when TP1 is bridged to TP2, the failed to boot log appears when TP1 is not bridged
I have verified many times continuity from microSD slot to J14.
Sometimes it is necesarry to try another microSD card, from another brand, of you will.Try moving the resistor so that it is only used on the wire for TP1.
We have found that some units dont like the resistor connected between power and the SD slot, the voltage drop appears to be to great and the SD card doesnt boot.
I encountered the same issues and attempted various solutions. It's crucial to carefully inspect the microSD connection, examining each pin individually. The most effective method involves desoldering the microSD slot and giving it another try. Upon desoldering, you'll be able to identify any improperly soldered pins. Thanks to the photo shared by a member named "account deleted" on 10/24. Following the example photo, I removed the cover, resoldered each pin while ensuring a secure connection by pressing on each one. It's essential to solder the cover plate back in place; my attempt without doing so was unsuccessful. I hope this information proves helpful.Hi,
My MD5 checksum is:
MD5 hash of Karma_boot_SD.img:
a40e5a7800a98e7ccce184e34b554751
I replaced baro and it was fixed.MS5611?
Thank you for sharing this solution ! Do you know if there is hardware schematic of the Karma Drone available somewhere ? And also hardware schematic of the controller ?Although I succeeded in rewriting the boot sector, I got an error message saying that I couldn't take off due to an abnormality in baro.I peeled it off with a hot plate from a certain module and pasted it, and it worked.
GY-63 MS5611-01BA03
Unfortunately I don't know where the schematic is. I recognized Burro because of its unique appearance. I used a heat gun to remove it, but it was very difficult.Thank you for sharing this solution ! Do you know if there is hardware schematic of the Karma Drone available somewhere ? And also hardware schematic of the controller ?
How did you de-solder the old barometer and solder the new barometer onto the mainboard ? With hot air? or very fine solder iron tip ?
Heat gun or hot air soldering station ? I assume you mean hot air soldering station ? Thanks for the info , I have one with a broken baro so will try this as well.Unfortunately I don't know where the schematic is. I recognized Burro because of its unique appearance. I used a heat gun to remove it, but it was very difficult.
Is the barometer prone to fail suddenly ? If so, I probably need to buy some for spare, just in case. And a hot air rework stationHeat gun or hot air soldering station ? I assume you mean hot air soldering station ? Thanks for the info , I have one with a broken baro so will try this as well.
I have only seen one faulty one so far. I have heard of a second one that was faulty. So I guess they do fail but its seems to be rareIs the barometer prone to fail suddenly ? If so, I probably need to buy some for spare, just in case. And a hot air rework station![]()
Is this only available to rev C onwardsNo , Im an Aussie just like you, how quickly you forget, lols
The last rev c board I fixed it took about 15 minutes from start to finish, Luis appears to be charging people anywhere from $300 - $500 AUD to fix the issue. But he wouldnt be using our technique as it is very unique. Im planning on doing a video on the process when I get another version c board in for repair. That way people can have a go at it themselves or go to an electronics repair shop and say "do this".
I am yet to find a revision of board that this doesn't work on.Is this only available to rev C onwards
I have revision B
Hi, come over to the Discord server, there are many people there who can help you in real time.Hi,
I am trying to fix my drone with a pairing issue.
So I plug my laptop to the serial debug port and I can see the famous error NAND boot failed.
So I have soldered a micro sd adapter on the arm board where there is a empty micro sd card location.
But the drone won't boot on sd card (I put 3v3 through a 1k resistor on the resistor near the big chip and I bridge FB36 to power the sd card slot.
I think I am pretty close to get it work because I probe with my oscilloscope the clock pin of the sd card and when I boot with the 1k resistor trick I can seee the clock running (nearly 300kHz).
Without the 1k resistor trick the clock is not running so I think eveything looks good but drone won't boot on sd always the NAND boot mode.
I tried another sd card same thing.
The only thing is that my drone is a REV E. Is the trick work with a REV E ?
PS : sorry for my english I am french
Thanks in advance for answers.
Eric