#Help with flashing FW to RM Ranger Micro 2.4 GHz

35 messages · Page 1 of 1 (latest)

tropic viper
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I am using a Radio Master TX16S with a Radio Master Ranger Micro 2.4 GHz external module. I am following the procedure outlined in the Express LRS quick start guide. I had previously flashed the RM Ranger with the latest version of FW 3.5.3 following the instructions in the quick start guide successfully. I then upgraded my Radio Master TX16S to FW version v2.10.5"Centurion". After this upgrade I checked the FW version installed on the RM Ranger and it is identified as LR1121_init_power...ISM2G4 (see screen shot below). I have tried three different times to build and flash to the current Express LRS version 3.5.3 using the configurator (each time it tells me I am successful), but the FW version does not change from LR1121. Can someone provide me with some guideance on what to do to fix this? I am at a loss. Thank you.

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abstract dagger
slim currentBOT
tropic viper
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Thanks. I tried reflashing but got the same result. I will ignore it and see how it goes.

abstract dagger
tropic viper
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yes

tropic viper
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the same thing occured with the receiver.

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Once I finished, the receiver and the TX were bound, as indicated by a solid green light on the RP1 reciever.

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I also have full bars on the display

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but when I connect to betaflight, nothing changes when I move the gimbles.

abstract dagger
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That is the latest version, just the name is incorrect. The git hash is correct.

tropic viper
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also note that I don't have an option to enable telemetry.

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abstract dagger
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Show a clear photo of your receiver wiring, a screenshot of the ports and receiver tabs in Betaflight, and screenshots of the receiver !webui options and model tabs

slim currentBOT
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Connect to your transmitter's or receiver's WiFi network to access the web UI:

abstract dagger
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Follow the guide

tropic viper
abstract dagger
# tropic viper

You need to reflash Betaflight, and select CRSF under receiver protocol when flashing

tropic viper
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OK thanks

tropic viper
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That did it. Thanks so much! what a wonderful resource!

stoic onyx
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I'm having the same issue with LR1121_init_power...ISM2G4 being displayed instead of the RX firmware version. I'm using RotorFlight, TX16S, and RP3-H RX. I tried both the WebUI and the ExpressLRS Configuration. No issue flashing the firmware, it's just that LR1121_init_power...ISM2G4 is displayed on the TX when checking the version number.

Here is the log file from the ExpressLRS Configurator:

======== PASSTHROUGH INIT ========
Trying to initialize COM8 @ 420000

Attempting to detect FC UART configuration...

** Serial RX config detected: 'serial 3 64 115200 57600 0 115200'

Enabling serial passthrough...
CMD: 'serialpassthrough 3 420000'

======== PASSTHROUGH DONE ========
======== RESET TO BOOTLOADER ========

  • Using full duplex (CRSF)

Verified RX target 'UNIFIED_ESP8285_2400_RX'

esptool.py v4.2.1
Serial port COM8
WARNING: Pre-connection option "no_reset" was selected. Connection may fail if the chip is not in bootloader or flasher stub mode.
Connecting...
.

Chip is ESP8285H16
Features: WiFi, Embedded Flash
Crystal is 40MHz
MAC: d8:bc:38:ba:5d:f2
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Erasing flash (this may take a while)...
Chip erase completed successfully in 3.1s
Compressed 552144 bytes to 401886...
Writing at 0x00000000... (0 %)

<Removed to save space>

Writing at 0x000860b6... (100 %)

Wrote 552144 bytes (401886 compressed) at 0x00000000 in 12.4 seconds (effective 356.8 kbit/s)...
Hash of data verified.

Leaving...
Soft resetting...

visual panther
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40555e1

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!webflasher link here:

slim currentBOT
stoic onyx
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I tried the web flasher and got the same result. As long as it's the correct version based on the git hash I'm good to go. So it's just a version display issue and not a technical issue.