Download the latest Samsung firmware for GALAXY Apollo with model code GT-I5800. Check out our free download or super fast premium options. Phone Flash File is a software operating system that operates services of hardware and software issues. Android Flashing means removing stock firmware (Software) Free Download Official Samsung GT-I5800 firmware Stock ROM - Latest Flash File. Head over to Firmware Finder and enter the model number of your GALAXY Apollo as GT-I5800. · Select the firmware version you want to download based on region and Download the Samsung GT-i5800 Galaxy 3 phone Flash File (Stock ROM or Firmware). We also provide Android phone USB Drivers and Flash Tools.