After some tinkering, I finally got my $29 Amazon cable to work.
http://ift.tt/1e1miGT
Using instructions taken from here: http://ift.tt/105hsaD
I was able to reprogram the FTDI chip and successfully program my '07 335i. The important bits are:
1) Download this program to reprogram the chip: http://ift.tt/105hsaJ
2) Select the checkboxes to invert RI# and DSR#
3) Set the I/O controls as follows:
#C0 = RXLED
#C1 = TXLED
#C2 = POWERON
#C3 = PWRON
#C4 = SLEEP
4) Program the chip, and that's it
This may explain why some people get their cheap cables to work and others do not -- they are likely programmed differently. My cable has the white circuitboard, which people seem to say never work. There are supposed to be two other variants (at least) with a blue and a green circuit board. Some work more than others. This cable has never worked, but now it does flawlessly.
Next I'm going to get back to working on getting the quote-unquote "open source" flash tool to work with it.
http://ift.tt/1e1miGT
Using instructions taken from here: http://ift.tt/105hsaD
I was able to reprogram the FTDI chip and successfully program my '07 335i. The important bits are:
1) Download this program to reprogram the chip: http://ift.tt/105hsaJ
2) Select the checkboxes to invert RI# and DSR#
3) Set the I/O controls as follows:
#C0 = RXLED
#C1 = TXLED
#C2 = POWERON
#C3 = PWRON
#C4 = SLEEP
4) Program the chip, and that's it
This may explain why some people get their cheap cables to work and others do not -- they are likely programmed differently. My cable has the white circuitboard, which people seem to say never work. There are supposed to be two other variants (at least) with a blue and a green circuit board. Some work more than others. This cable has never worked, but now it does flawlessly.
Next I'm going to get back to working on getting the quote-unquote "open source" flash tool to work with it.
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