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EdgeTX flasher bricks the receiver if the bootloader is being updated. #4984
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I also read about it in the Frsky forum. Frsky has since removed the files from the website. It looks like it is not EdgeTx but the files themselves that are causing the problem. |
I was the one who helped FrSky pinpoint the problem, and now that the culprit was identified as EdgeTX they are refusing to replace my bricked receivers free of charge (even when the second receiver I bricked was following their instructions with an updated patch). |
Oh, that sounds bitter. Is it no longer possible to revive the Rx with the STM32Cube Programmer? |
These are ACCESS receivers; the chip (which is sanded so as not to be able to identify it) is probably a C25xx, which runs some kind of 8051 code. All ACCESS firmware is encrypted, FrSky wants ACCESS to remain proprietary (since D16 was copied by other brands). So, these are nice bricks but too light for a paperweight... A pity we can not even flash some open source firmware. |
Is there an existing issue for this problem?
What part of EdgeTX is the focus of this bug?
Transmitter firmware
Current Behavior
A patch for Archer Plus R6 | GR6 | R8 | GR8 | SR8 which "Fixed the issue of CH1/CH2 outputting an unexpected pulse width once powering the receiver." was posted recently by FrSky.
The patch comes in 2 files which must be flashed consecutively.
The first file "nx_Patch.frsk" contains an updated bootloader (encrypted) and the second "nx_FixTool.frsk" is the bootloader updater (also encrypted).
Here are the included instructions:
It seems that either the EdgeTX flasher clears the whole receiver's flash before flashing a new one, or just overwrites the preloaded/encrypted/updated bootloader patch when the nx_FixTool is flashed.
FrSky currently pulled this patch, it's no longer available in their site.
Expected Behavior
OpenTX's flasher works ok and EdgeTX's changes in the flasher should be rolled back
Steps To Reproduce
If you reproduce this problem you will brick your receiver!
Version
Nightly (Please give date/commit below)
Transmitter
FrSky X9 Lite / Lite S
Operating System (OS)
Windows
OS Version
No response
Anything else?
firmware: nightly e3f2914
2024-04-03
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