How To Update Firmware
Of
Samsung I600
This Model of Samsung phones can work on 2G/3G networks and comes with QWERTY keyboard, Bluetooth, Wi-Fi, and 1.3 MP camera.
To update the firmware of this phone you need to download this guide and read it first then follow the steps.
Tools: Samsung I600 download program - USB cable.
Guide: How To Update Samsung I600 Firmware.