Here's how to reflash a Zgemma H7S or H7C with a new Enigma2 firmware image from a FAT32 USB stick. (Adapted from a guide by Satboxer, Zgemma.com.) For dedicated H7 support, see the PurE2 section: PurE2 Team.
What you'll need
- A freshly formatted FAT32 USB key.
- Your chosen firmware image.
Flashing the receiver
- Download the latest release of your chosen firmware image directly from the developer's website.
- Once downloaded, unzip it — you'll get a folder named zgemma (with an H7 folder inside it). Copy the whole zgemma folder to your freshly formatted FAT32 USB key.
- Turn off your H7 receiver with the white button at the rear, next to the power input.
- Plug the USB key (with the zgemma folder on it) into any USB port.
- Behind the front flap (door panel) you'll find a small button at the top left. Hold this button in while turning on the rear white power button.
- Keep the front button pressed — the front LCD changes through BOOT → USB → FLASH. When FLASH is displayed, release the front button.
- The receiver displays FLASH for about 2 minutes while the new firmware loads.
- The box then restarts itself, showing BOOT on the front screen [00>100].
- Your new firmware appears on the TV screen and the setup wizard guides you through the configuration.
Special note: if an internal hard disk (HDD) is fitted and you save your settings to it, you'll be offered the option to import your previous settings and bouquets.
⚠️ Don't interrupt the flash. While the box is flashing, do not power it down — wait for it to finish, or you risk a corrupt image.
