Update Samsung Galaxy J4 SM-J400G to Android 9 Pie. The Android 9 Pie firmware for Galaxy J4 SM-J400G are available for download, for firmware detail you can see it below. It also available for some countries, you can visit free download for Galaxy J4 SM-J400G firmware. If you get error message “SECURE CHECK
Tags: Android 9 Pie, firmware update, Free SM-J400G Android 9 Pie