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Author Topic: ME 7.1.1 Pin 24 location  (Read 205 times)
GolfSportWagen
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« on: October 06, 2019, 07:47:47 PM »

I see two different pics of where to short pin 24 to get into boot mode for the ME 7.1.1 as listed below. One has two vertical solder pads listed which are not on my PCB and the other shows the second terminal in on the flash chip same as the ME 7.1 pic in the S4 Wiki. Does anyone have first hand experience with an ME 7.1.1 PCB without the vertical solder pads who has used the second pin on the 29F800BB chip? Since this is all new to me I don't want to fry anything on the first go. I'll save that for later...  Wink

https://s4wiki.com/mediawiki/images/6/62/ME7.1.1-bootmode.png

https://mhhauto.com/Thread-Read-immo-from-ME-7-1-1?page=2

TIA
« Last Edit: October 06, 2019, 07:50:20 PM by GolfSportWagen » Logged
BlackT
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« Reply #1 on: October 06, 2019, 11:02:48 PM »

Yust ground 24 pin on 29FXXXX chip. Post pic of your ECU if you not sure where it is, i will show you
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GolfSportWagen
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« Reply #2 on: October 07, 2019, 05:46:30 PM »

Yust ground 24 pin on 29FXXXX chip. Post pic of your ECU if you not sure where it is, i will show you

Thanks for the reply. Is it the same as in this photo?

https://mhhauto.com/Thread-Read-immo-from-ME-7-1-1?page=2
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BlackT
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« Reply #3 on: October 07, 2019, 10:10:26 PM »

As I can see the boot pin is already marked in that photo. Where is the problem?
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GolfSportWagen
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« Reply #4 on: October 08, 2019, 05:39:18 PM »

There are a variety of ME 7.1.1 PCBs with different possibilities to short pin 24. The photo below from the S4 Wiki shows a solder pad to short pin 24. The solder pad does not exist on my or all ME 7.1.1 PCBs so I wanted to confirm that it would be necessary to actually short the 29F800BB pin instead of a different solder pad as shown in this link below.

https://s4wiki.com/wiki/File:ME7.1.1-bootmode.png
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BlackT
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« Reply #5 on: October 08, 2019, 07:40:58 PM »

Yust short it to ground direct on 29F  24 pin
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bamofo
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« Reply #6 on: Yesterday at 05:01:55 PM »

Thanks for the reply. Is it the same as in this photo?

https://mhhauto.com/Thread-Read-immo-from-ME-7-1-1?page=2

Yup. I use one on the back side that also goes to that pin to make an external wire. But that one will work too... i just dont like soldiering to chips.
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