JB4 Mobile
JB4 Mobile App Info
-
App Name
JB4 Mobile
-
Price
27.99
-
Developer
Dmac Mobile Developments, LLC
-
Category
Sports -
Updated
2025-09-12
-
Version
3.0.6
Frequently Asked Questions
How do I connect JB4 Mobile to my vehicle for the first time?
Ensure your JB4 tuner is installed, then open JB4 Mobile, go to Settings > Connection > Select BLE or OBD, and follow the pairing instructions.
Is my smartphone compatible with JB4 Mobile?
JB4 Mobile supports iOS and Android devices with Bluetooth LE or OTG compatibilities. Check the app requirements in the App Store or Google Play store.
What are the main features of JB4 Mobile I can access during driving?
You can monitor live boost, RPM, fuel trims, air/fuel ratio, ignition timing, switch maps, and perform WOT logging directly from the app.
How do I log data and analyze performance metrics with JB4 Mobile?
Tap the Log button during driving, then view logs in the Data Viewer > Raw CSV for detailed analysis or export logs via email from the app.
Can I customize the gauge themes on JB4 Mobile?
Yes, go to Settings > Themes to personalize gauge displays, colors, and layouts to match your style.
How can I update my JB4 firmware using the app?
Navigate to Settings > Firmware Upgrade, then follow prompts to download and install the latest firmware over your connection.
Does JB4 Mobile require a subscription for full features?
Some advanced features may require a subscription. Check Settings > Account > Subscription to view and manage your plan.
What is the pricing model for JB4 Mobile or any in-app purchases?
JB4 Mobile is free to download; optional features or updates may be available via one-time purchase or subscription within the app under Settings > Store.
What should I do if JB4 Mobile fails to connect to my vehicle?
Ensure the Bluetooth or OTG connection is secure, restart the app, and verify your hardware is properly installed. Re-pair if needed.
