If you are trying to restore a box that is stuck or displaying an error, the 2015 version is often used as a "cleaning" file. However, for the and server updates, you should check for the newest firmware (often v2.xx) at the Official Geant Support Site .
: Do not turn off the power during the process, as this can brick the device. Important Troubleshooting Download GEANT 2500HD PLUS 20150415 bin
The official repository for Geant electronics typically hosts these files. You can find the specific update here: If you are trying to restore a box
The firmware file from April 15, 2015 (specifically v1.41 ) is a legacy update used to maintain server stability (G-Share) and fix bugs on older satellite receivers. Direct Download Link (v1.41) Update Procedure : Insert the USB into the receiver
: Copy the .bin file to the root of a FAT32-formatted USB drive. Update Procedure : Insert the USB into the receiver. Go to Menu > Expansion > USB . Select the .bin file and confirm to start the update.