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55 lines
3.1 KiB
Markdown
55 lines
3.1 KiB
Markdown
# Flashing from the Transmitter
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For radios running ersky9x and OpenTX, there is an option to flash a precompiled firmware file to the multiprotocol module using the transmitter's Bootloader mode.
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## Tools required
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* A compatible transmitter running an ersky9x bootloader v2.9 or newer. This is true for both OpenTX and ersky9x.
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* A precompiled multiprotocol firmware file (.hex for Atmega328p or .bin for STM32)
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* A **Flash from TX** bootloader installed on an Atmega328p or STM32 multiprotocol module
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* A means to get the firmware file onto the transmitter's SD card
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## Radio bootloader and apps
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### How to check the bootloader version
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1. Push both horizontals trims inwards (close to each others) while powering on the radio
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1. The screen title should indicate `Boot Loader V2.9Ready` or newer
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1. Launch the `FlashMulti_xxx.app` app from the `Run App` menu
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1. The App version at the bottom right of the screen should be `28.Aug.18` or newer
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1. If everything is correct you are ready to upgrade the Multimodule firmware
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### Upgrade the bootloader and install app(s)
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1. Download the latest zip file of the [ersky9x firmware](https://openrcforums.com/forum/viewtopic.php?f=7&t=4676)
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1. Extract the .bin file corresponding to your radio in your SD card `\FIRMWARE` directory
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1. Download the latest [Flash Multiprotocol Module app](http://www.er9x.com/Ersky9xapps.html) for your radio
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1. Copy the .app file in a folder called `APPS` at the root of the SD card (if the directory does not exist create it)
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1. For ersky9x
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1. Power on the radio in maintenance mode while pushing both horizontals trims outwards (away from each others)
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1. Select Upgrade Bootloader
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1. Select the ersky9x firmware matching your radio
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1. Long press it and select `Flash bootloader`
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1. For OpenTX
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1. Boot the radio normaly
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1. Go in the RADIO SETUP menu page 2 called SD-HC CARD
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1. Open the FIRMWARE directory
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1. Select the ersky9x firmware matching your radio
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1. Long press it and select `Flash bootloader`
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1. Check by rebooting the radio in bootloader mode that everything is [ok](###-How-to-check-the-bootloader-version)
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## Multimodule upgrade procedure
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1. Either:
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1. Connect the transmitter using a USB cable and power it on, or
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1. Remove the SD card from the transmitter and mount it using a suitable reader
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1. Copy the pre-compiled firmware file into the `\FIRMWARE` folder of the SD card (create the folder if it does not exist)
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1. Power the transmitter off and remove the USB cable or put the SD card back in the transmitter
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1. Push both horizontals trims inwards (close to each others) while powering on the radio
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1. The screen title should indicate `Boot Loader V2.9Ready` or newer
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1. Launch the `FlashMulti_xxx.app` app from the `Run App` menu
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1. Choose the appropriate file type
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1. `HEX` to update an Atmega328p module
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1. `BIN` to update an STM32 module
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1. Select `Update`
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1. Choose the firmware file to flash, long press to select it
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1. Long press again to flash the selected file to the module
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1. When flashing has finished, long press EXIT to reboot in normal mode
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1. If the flashing procedure fails try to redo with the process `Invert Com Port` enabled
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