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phoebee phoebee is offline
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Default JB4 mobile IOS problem - 09-08-2017, 10:15 AM

F32 428i n20 2014+ ewg

I using iPhone5 iso version 10.3.3

Sometimes jb4 mobile doesn't work

Bluetooth is connected.

But gauges don't work.

And alert "Unable to read/validate settings. Check you user/meth settings to ensure they are correct."

So I tried lunch jb4 mobile on other iPhone6.
It worked.

Omg so confuse. Why my iPhone5 couldn't read validate setting??

Last edited by phoebee; 09-08-2017 at 07:18 PM..
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CedarPerformance CedarPerformance is offline
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Default 09-08-2017, 10:21 AM

If I am not mistaken, there may be some sort of conflict with the bluetooth chip your iphone 5 uses. Might be older tech, lower sample rate, problematic in general.

Check out this thread:

http://www.n54tech.com/forums/showthread.php?t=21742
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 10-02-2017, 09:48 AM

Android user here.

Best to contact Donnie @ JB4 Mobile via his thread, he knows IOS best.


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Mike_L's Avatar
Mike_L Mike_L is offline
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Default 10-02-2017, 10:16 AM

Its the iPhone 5. I ditched my iP5 years ago because it didn't play nice with JB4Mobile. As far as I know 6S and newer work well with it. 6 is iffy.


Mike Levy
2017 X3 xDrive35i
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Turboh Turboh is offline
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Default 02-21-2018, 05:44 PM

Is use iPhone 4s. I have two of them. They work fine for awhile until power drops below 50% or so. Then...not able to establish contact...etc.

Tried over and over and just concluded the bt connection was too weak and erratic. I did notice that the bt icon appeared weak too.

I prefer the iPhone SE. It works fine so far. Fast connect and the icon was nice and bright.

We will see.....so far.


2017 340iX with M track handling package, 6 speed manual, BMS intake, and JB4 piggyback; EWG and FP wires; 93 octane; and fun with Honda S2000; Ninja Z1000.
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