Flashing Android 8.0.0 Oreo to Samsung Galaxy J4 SM-J400F 2018. The Android Oreo firmware for Galaxy J4 SM-J400F 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-J400F firmware. If you get error message “SECURE CHECK
Tags: Android 8.0.0 Oreo, firmware update, Galaxy J4 SM-J400F 2018, stock rom