原帖由： Buddhika Mahesh ,
Option 01 Connect tab to Samsung kies and try to update firmware More info, http://www.samsung.com/us/support/faq/FAQ00052704/61332 if your system running with latest base-band Option 2 * Connect your device to your computer. Open the Samsung Kies software on your computer and click on the Backup/Restore tab. * The backup process will begin backing up your personal data. * Once it’s finished, click the Complete button. * On your Samsung device, go to Apps, then Settings, then tap Backup and Reset. * Tap Factory Data Reset and follow the prompts. * After the reset, open Samsung Kies and click on Backup/Restore. * Click the Restore button and select which files you would like restored to your device. Click Complete when you’re done.