JB4 Mobile What’s Update
 

JB4 Firmware Manager

You’ve asked. We’ve answered. It’s now easier than ever to find the most up-to-date firmware for your JB4. The JB4 Firmware Manager provides a simple and direct interface for accessing JB4 firmware updates so you won't have to fumble through webpages and threads.
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Your platform will be automatically detected each time you connect to the JB4.