The effects seem to happen to a wide number of users on different networks and in different physical locations, with no established pattern as to when or why the problem occurs.Before you download and build the Android source, ensure your system meets the following requirements.These issues were not reported before the Android 4.4 update.At least one user with the Verizon CDMA version is reporting the problem as well.Then see Establishing a Build Environment for installation instructions by operating system.Your development workstation should meet or exceed these hardware requirements: branch is traditionally developed and tested on Ubuntu Long Term Support (LTS) releases, but other distributions may be used. You workstation must have the software listed below.
Procedure to Update Galaxy ACE 2 with Kitkat 4.4.2 Android Firmware: Note: If at all your Galaxy ACE 2 gets in the boot loop sequence then you need to turn off the device and then reapply the update from the start.
Samsung Galaxy ACE 2 too joins the party of Kitkat 4.4.2 Android OS which comes with the state of the art features and capabilities which otherwise are not available in the ICS / Jellybean 4.1 Android OS firmwares.
Unfortunately Samsung won’t be coming up with the official Kitkat 4.4.2 firmware for the device, all thanks to the Cyanogen Mod team.
It is also possible to build Android in a virtual machine on unsupported systems such as Windows.
branch of Android in AOSP comes with a prebuilt version of Open JDK, so no additional installation is required. See Installing the JDK for the prebuilt path and installation instructions for older versions.