![]() The first one is virtual, meaning its contents are not existing in file form on the radio. In this mode the radio will present itself to the computer as two disk drives. The name is perhaps too similar to the STM Bootloader from case 1. This is the OpenTX Bootloader written by OpenTX team and is a part of OpenTX firmware. The radio should respond to computer and identify itself as: The USB is providing all the power to the radio in this case. Now, with the radio powered off, plug in the USB cable and connect it to the computer. This insures that the radio is trully off. In such cases remove the battery from the radio. It may appear powered of, but in fact it might still be on, because the power is ultimately controlled by the CPU inside the radio and not the mechanical switch. In some cases (bad previous firmware) the radio can not be powered of. To enter into this mode, turn the Taranis radio off. So for example this mode is a fast way to change both the OpenTX Bootloader and the main firwmare to the same version. In this mode the whole OpenTX firmware gets written to the radio, that means that both OpenTX Bootloader and OpenTX main radio firmware get written. ![]() The OpenTX Companion (with appropriate driver) can use this mode and can read and write OpenTX firmware to the radio. ![]() The FLASH is the non-volattile storage space where OpenTX firmware gets written. In this mode, with appropriate software, one can have a full control over the whole FLASH area of the Taranis radio. This mode should always work regardless of what the user has done/flashed to the radio. This is a good thing and means that Taranis radio can not be "bricked". It is a part of the "silicon firmware" and can not be erased or damaged in any way. ![]() This mode is built in into the STM32 CPU that is in the radio. Mode 1: The factory installed STM32 DFU Bootloader ![]()
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