How to Upgrade to JB4 Mobile 3.0 + Connect Kit Firmware | Kia K5 GT-Line

Upgrading your JB4 Mobile App to Version 3.0? In this step-by-step guide, I walk you through the upgrade from JB4 Mobile 2.0 to 3.0 using real screenshots and firsthand experience on my Kia K5 GT-Line. This includes the crucial Connect Kit Firmware update process and tips to avoid getting locked out of your JB4 system.

What you’ll learn in this video:
Where to find the official JB4 Mobile 3.0 app
How to prepare your vehicle for a smooth update
Key firmware update steps using the JB4 Bluetooth Connect Kit
Tips to prevent connection issues and firmware lockouts
What to expect during and after the update (including restart behavior)
App Store preview and how to confirm you're installing the right version

Whether you're running Map switching, data logging, or just want the updated user interface, this video ensures you’re ready for JB4 Mobile 3.0—no guesswork, just results.

🧠 Pro Tip: Place your phone close to the JB4 Connect Kit during the update to ensure a strong signal and minimize issues.

Perfect for:
Kia K5 GT-Line owners
JB4 Mobile users
Hyundai/Kia turbo enthusiasts
Anyone new to tuning with Burger Motorsports products

👇 Drop your questions or share your update experience in the comments!

#JB4Mobile3 #KiaK5GTLine #JB4FirmwareUpdate #JB4ConnectKit #BurgerMotorsports #KiaTuning #HyundaiTuning #JB4Guide #JB4Update #K5TurboBuild #JB4Bluetooth #TuningTips

TIMESTAMPS
00:32 Overview of the steps
01:13 Turn on your car
01:38 Update in engine bay
02:45 Downloading the right app (Bonus)

This video is for educational purposes only.

Vehicle: 2021-2024 Kia K5 GT-Line (DL3) 1.6T AWD
(Engine and exhaust parts are interchangeable with 2019-2024 Hyundai Sonata (DN8) 1.6T)

Current Mods: K&N Cold Air Intake - High-flow, Aluminum; Custom 3" Aluminum Turbo Inlet; NGT Midpipe; Borla Cat-Back Exhaust System S-Type; Ark Performance GT-S Lowering Springs

Connect with me in the K5 Owners Forum https://www.k5owners.com/members/k5gt...

*For the technically gifted*
Hardware used:
IPhone 16, 13 Pro, and Canon EOS R7 (cameras)
MacBook Pro

Editing Software:
Adobe Premiere Rush
Adobe Photoshop (thumbnails)

Music: Dyalla - 368 by LIMO Recording Studio