May 18, 2025 · We have both Android and iOS support. Older JB4 systems sold prior to around 2020 may need minor modifications to use the new JB4PRO adapter, but all newer/currently sold JB4 …

Oct 31, 2024 · Anyone else having issue after the jb4 app update on android? Is there a quick fix?

Hello, can I connect with the bluetooth-kit using the software on a latop. Or is the bluetooth-kit only intended for use with cell phones (Android/iOS)? Its only intended to be used with the app called JB4 …

Nov 1, 2016 · JB4, MHD BEF, DCI, Secondary *** Delete, Alpina B3 TCU So, the main question I have been wondering about is, If you have both the JB4 and MHD BEF. Can you run a MHD Flash? …

Finally gotten around to working on JB4 back end flash maps for the S58 platform! The maps are being developed on MHD+ and will be available free of charge unlocked to all JB4 owners who decide to …

Hi, I connected the JB Mobile app, amd I am able to select the mappings and load them, however the gauges stay blank, what am I missing? I am on the Lotus Emira V6.

I just installed a PI manifold with 750cc injectors and a BMS port injection controller wired it to my JB4. If want to add flex fuel ability do I just need the sensor or do I also need another box to convert signals …

I'm really hoping to get some expert help from you guys in here, cause I've got some serious performance issues with my 335i. Got no idea if it's regarding to some wrong jb4 settings or …

JB4 got it fixed. thanks guys. I have a topic over on N54 about boost reading with Single turbo. If yall could check that out thanks. I have a 3.5 bar tmap so now the map 3 is 20psi. Are my JB4 boost …

I have a 22 Sonata N Line and just installed the jb4 over the weekend. Been running map2 with no problems ( was told my log looked great) So I was wondering if map3 is safe with 93 octane.