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Terry @ BMS Terry @ BMS is offline
Posts: 34,244
Join Date: Jan 2008
Default 02-28-2020, 10:57 AM

Sorry to hear about the headaches. A little info would have saved you a lot of time and the tow. To start the BMS data cable is a proprietary cable with different wiring than usual DB9 data cables. Only a BMS data cable can be used for the windows software. You can't just plug in any cable that looks like it might fit as it has no chance of working and may damage the JB4 electronics.

Hopefully that isn't the case here. Put back the JB4 mobile adapter. When you connect via JB4 mobile it should recognize there is no firmware and prompt you to load it.

Since you clearly have a signal strength issue for updates make sure ignition is fully on (all lights showing in dash), phone wifi is off, upload time out changed to 25, and phone sitting close to JB4 system under the hood. That usually does the trick.

Did you see the JB4 mobile FAQ for firmware updates?

PS. Next app revision will have more detailed troubleshooting information on firmware updates within the app.

Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

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