problem after firmware update

[banbusa]

after firmware up date 2009-04-30 all gone wrong 
when i turn the gauge on the heater count starts gets to h03 then the a/f says fu and the temp says ffu
any body got any ideas 
tryed to re upload starts then logs off
mark

[rob@vems.co.uk]

Personally I'd bin the newer firmware and go for an older version, there would have to be a specific reason to update to something new.

[banbusa]

no joy with old firmware 

[rob@vems.co.uk]

Is the firmware uploading or does it still get halfway through and then die?

[banbusa]

half way then dies
thinkit says 93 checksome errors
mark

[rob@vems.co.uk]

Are you using a USB->Serial converter?

[banbusa]

hi rob yes using usb converter
mark

[rob@vems.co.uk]

That can often be a cause of upload problems, have you ever used another type of USB->Serial converter on your laptop?  If so then it might be a case of uninstalling all of the drivers you have and then ensuring that the driver of the current USB->Serial is installed properly.
Failing that can you find a laptop with a serial connection?

[blaze falconburger]

I had this problem after applying firmware 2009-04-30.  It counted to 03, then displayed F's.  It applied correctly, 0 checksum errors, but wouldn't do anything.  You then can't apply other firmwares, it gives an error along the lines of an unknown state.

I was able to get out of it though - when you first power the gauge up as soon as it starts to count up immediately apply the firmware dated 2008-02.  Get the command ready and then hit enter immediately as soon as it starts counting - if you get the timing right it will start to apply the earlier firmware.  Don't try the other 2009 one either - it did the same for me, stick with 2008.

[rob@vems.co.uk]

It does my head in that they've made such a shit firmware available.

[banbusa]

hi rob back again for more 
tryed old laptop but still no joy if its caput how much can you do a new one for
mark

[rob@vems.co.uk]

No need for a new one if its just software, is it possible to extract the gauge and send it to me, I'll find a way of forcing the bloody firmware on

[Ellisd]

Seems to be a common problem this as, mine is also doing it.  I've got not Heater counting before the display shows -FU -FFU

It just flashes -E- for a split second then goes straight to -FU -FFU.  When i try installing the older firmware it just says it can't connect.

I really hope it's not a case of sending gauges back to get them reprogrammed, it'll take me the best part of a day to get my out as i'll have to take half the dashboard out.

[Ellisd]

will this procedure work? i got it off the vems.hu site

http://www.vems.hu/wiki/index.php?page=AfreshTiny%2FFirmwareUpgrade

[banbusa]

  :)got it back on with 2008 thanks for all help
i started update and turned vems on at same time 
mark