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MateoAnthony MateoAnthony is offline
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Default JB4 Connection Error Message - 08-08-2020, 02:49 AM

Hello everyone,,

I recently tried to connect my JB4 from the mobile app on my iPhone and I received the following error message "Error connecting to JB4. Please check your hardware connection".

I previously had not had any issues with the unit since purchasing it back in June 2019. When clicking "Connect" on the app it goes through the stages until it gets to 'awaiting handshake" at which time I get the error message above.

I have not recently disconnected anything from my unit and I also checked all the connections such as the OBD, fuel wires, bluetooth cables as well as the connections directly https://100001.onl/ https://1921681254.mx/ https://happymod.site/ to the car but everything was secure. I deleted the app and re-downloaded it and I tried connecting with being on my wifi at home. My bluetooth is on and when I look at the bluetooth connections the JB4 shows up. At this time I am at a loss as to what else I can try.

Has anyone else ever had this issue? Any ideas on what I can try to get this working again?

I appreciate any help that can be provided.
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 08-08-2020, 08:51 AM

Best to contact JB4 mobile directly! Their contact info is support@jb4connectkit.com


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

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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