BMW 1-Series Forum (F20) 135i - 1Addicts.com > Second Generation 1 Series Forum > DIY Guides and Instructions > Esys Open connection failed [C028]
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      07-12-2023, 08:54 PM   #1
andyroo
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Esys Open connection failed [C028]

Hi Guys,

I'm trying to update my Head Unit with e-sys, using 18-03 PSDZ.

When trying to connect, I get the following error.
Can anyone help?

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Open connection failed [C028]

Found project F020_18_03_532_V_004_001_000 with incompatible psdz job version 005.016.001 - 2018-03-29 08:51:41

- minimam required version is 5.20.0. Please update PDX container to the latest template version and re-import! [1908]
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      07-14-2023, 06:04 AM   #2
TheNine90
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Which esys version is this?
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      07-14-2023, 06:10 AM   #3
andyroo
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Thanks for the reply.. I have it working now with Esys 3.40.2 and v4.42.20 PSdZData.

The big problem I have now is the the Apple Carplay (USB Bin file) I purchased doesn't load and all my NAV / Maps are gone.

I was only updating the Head Unit firmware per the guy's instructions to get Full Screen Carplay.

Not sure what to do now... I reached out to the dude I purchased from, but hasn't replied yet.
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      07-14-2023, 07:18 AM   #4
TheNine90
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Flashing restores the unit to stock. There are other ways other than flashing to get carplay fullscreen. I can help you with the maps and carplay.
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      07-14-2023, 07:51 AM   #5
andyroo
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Any help would be appreciated. Thanks.
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      07-14-2023, 01:21 PM   #6
TheNine90
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PM sent
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      07-15-2023, 11:15 PM   #7
andyroo
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Thanks.. Shawn and the boys fixed it for me
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