Rooting your device almost certainly voids your manufacturer warranty. Once rooted, service centers may refuse to repair your device free of charge.
Use Titanium Backup to save full app data, which is not possible without root access. How to Download and Install iRoot APK Download Iroot Apk For Android 4.4.2
Open the default web browser on your Android 4.4.2 device and navigate to a trusted, secure APK hosting repository or the official iRoot website. Search for the latest stable version of the iRoot APK. Avoid unverified third-party blogs, as they may bundle malware with the file. Download the .apk file directly to your device's internal storage or download folder. Step 2: Install the iRoot Application Rooting your device almost certainly voids your manufacturer