Greetings,
This is not a question specific to Magic Lantern, but this seems to be the place with the most hardware knowledge about Canon cameras outside of the manufacturer itself. So I guess it can't hurt to ask?
I acquired a secondhand 6D with an odd firmware version: "3-3.7.1 59(1c)". Not thinking much about it, I downloaded the stock 1.1.9 firmware and updated the camera. The update process proceeded normally, but when completed, the camera shut off and will not power on.
I have no idea what this mystery firmware might have been, but I can only surmise that it was accompanied by settings written to nonvolatile memory that renders stock firmware unbootable. So far I have tried removing the battery from the camera for about a week, and also removing what I presume is the backup battery from the backside of the motherboard, both to no avail.
As for what to do next, I am open to suggestions. In particular, I note that there are two flash chips on the motherboard; I have the means (a Raspberry Pi masquerading as a SPI flash programmer) to dump the contents of these chips from a second 6D and write to these chips. (Incidentally, one is a Winbond 25Q32DWSIG; the other is an MX25L6436E.)
Any advice would be welcome. Thanks in advance!
This is not a question specific to Magic Lantern, but this seems to be the place with the most hardware knowledge about Canon cameras outside of the manufacturer itself. So I guess it can't hurt to ask?
I acquired a secondhand 6D with an odd firmware version: "3-3.7.1 59(1c)". Not thinking much about it, I downloaded the stock 1.1.9 firmware and updated the camera. The update process proceeded normally, but when completed, the camera shut off and will not power on.
I have no idea what this mystery firmware might have been, but I can only surmise that it was accompanied by settings written to nonvolatile memory that renders stock firmware unbootable. So far I have tried removing the battery from the camera for about a week, and also removing what I presume is the backup battery from the backside of the motherboard, both to no avail.
As for what to do next, I am open to suggestions. In particular, I note that there are two flash chips on the motherboard; I have the means (a Raspberry Pi masquerading as a SPI flash programmer) to dump the contents of these chips from a second 6D and write to these chips. (Incidentally, one is a Winbond 25Q32DWSIG; the other is an MX25L6436E.)
Any advice would be welcome. Thanks in advance!