Meteor75 Pro - Can't connect to RadioMaster Pocket | ExpressLRS Community | Page 1

red marlin Feb 27, 2025, 1:06 AM

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I replaced my camera today on my Meteor75 Pro (2022 version) and it wouldn't connect to my RadioMaster Pocket after that. I used to fly it all the time and never had any issue configuring it.

I tried a bunch of different things today and it just wouldn't connect. I thought maybe it needs new firmware so I upgraded my Pocket to 3.5.3 and then tried to do the same for my Meteor75 Pro after that, thinking they needed to match versions. I have seen conflicting choices for which Target (Device category and Device) to use on various posts / videos and I think I may have flashed the wrong Target. Now I don't see my quad coming up in Wifi mode and ELRS Configurator keeps giving various errors after I following numerous post on the internet and in this discord.

Any help getting me straightened out would be much appreciated.

red marlin Feb 27, 2025, 2:24 AM

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Here is my log by the way:

** Searching flight controllers **

FC found from 'COM3'

Detected the following serial ports on this system:
COM3

======== PASSTHROUGH INIT ========
Trying to initialize COM3 @ 420000

Attempting to detect FC UART configuration...

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

Enabling serial passthrough...
CMD: 'serialpassthrough 0 420000'

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

Using full duplex (CRSF)

Cannot detect RX target, blindly flashing!

esptool.py v4.2.1
Serial port COM3
WARNING: Pre-connection option "no_reset" was selected. Connection may fail if the chip is not in bootloader or flasher stub mode.
Connecting...
.
.
.

worthy geode Feb 27, 2025, 11:33 AM

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target should be "BetaFPV 2.4GHz AIO RX" if you indeed have the elrs version of the aio

red marlin Feb 27, 2025, 12:34 PM

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That's what I've been trying to flash. I had seen a video on YouTube that people kept pointing to where he was using the diy target and tried that too. Is there anyway around the error above?

worthy geode Feb 27, 2025, 12:38 PM

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try this !aio procedure here:

lusty pikeBOT Feb 27, 2025, 12:38 PM

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AIO with Serial ELRS receiver recovery flash instructions:

Disable Telemetry in Betaflight
Unplug everything
3a) if there are two boot buttons, hold down the receiver boot button, plug in USB, and click flash in ELRS Configurator
3b) if there is only one boot button, hold it down, plug in USB, open Betaflight, click "Exit DFU mode", close Betaflight, click flash in ELRS Configurator
Re-enable telemetry in Betaflight after successful flash

Note: If the recovery flash fails, try downgrading to Betaflight 4.4.3 temporarily.

https://cdn.discordapp.com/attachments/798006228450017290/1238518416181166100/betafpv5A1sAIO.jpg?ex=6640e528&is=663f93a8&hm=2bfe322bcb84c6e83fb65629013384f3708c4ef9ca45bb3c69cfee39716713a6&
https://cdn.discordapp.com/attachments/798006228450017290/1238518416583950467/exitDFU.jpg?ex=6640e529&is=663f93a9&hm=d810384bcf0daceaa83d9336dd62cda17595dcd263075a914773e6f1d0a80e5e&

red marlin Feb 27, 2025, 3:49 PM

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When I do steps 1,2, and 3b I don't get a choice for port (passthrough or uart) and it fails. After clicking Exit DFU it prompts me to connect to the port again. Whether I just close without connecting again or just close betaflight, the green light (boot mode) stays solid and the elrs configurator can't see the port.

red marlin Feb 27, 2025, 10:04 PM

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HEre is the ELRS log when I follow the instructions above:
Traceback (most recent call last):
File "runpy.py", line 196, in _run_module_as_main

File "runpy.py", line 86, in run_code
File "C:\Users\mikec\AppData\Roaming\ExpressLRS Configurator\firmwares\cloud\ExpressLRS\40555e141efb0c93ea8d075ec47a27592355f924\firmware\flasher.pyz_main.py", line 3, in <module>

if __name__ == '__main__':

File "C:\Users\mikec\AppData\Roaming\ExpressLRS Configurator\firmwares\cloud\ExpressLRS\40555e141efb0c93ea8d075ec47a27592355f924\firmware\flasher.pyz_bootstrap_init_.py", line 253, in bootstrap

File "C:\Users\mikec\AppData\Roaming\ExpressLRS Configurator\firmwares\cloud\ExpressLRS\40555e141efb0c93ea8d075ec47a27592355f924\firmware\flasher.pyz_bootstrap_init_.py", line 38, in run

File "C:\Users\mikec.shiv\flasher.pyz_a4a57aab0c3eaded256af93c8e8a5802d28f2040d54a50392b9b4e4fec341e9e\site-packages\binary_configurator.py", line 437, in main

return binary_flash.upload(options, args)

File "C:\Users\mikec.shiv\flasher.pyz_a4a57aab0c3eaded256af93c8e8a5802d28f2040d54a50392b9b4e4fec341e9e\site-packages\binary_flash.py", line 168, in upload

return upload_esp8266_bf(args, options)

File "C:\Users\mikec.shiv\flasher.pyz_a4a57aab0c3eaded256af93c8e8a5802d28f2040d54a50392b9b4e4fec341e9e\site-packages\binary_flash.py", line 86, in upload_esp8266_bf

args.port = serials_find.get_serial_port()

File "C:\Users\mikec.shiv\flasher.pyz_a4a57aab0c3eaded256af93c8e8a5802d28f2040d54a50392b9b4e4fec341e9e\site-packages\serials_find.py", line 71, in get_serial_port
raise Exception('No valid serial port detected or port already open')
Exception: No valid serial port detected or port already open

** Searching flight controllers **
** No FC found, find all ports **

Detected the following serial ports on this system:

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If I then unplug and replug without being in boot mode, I get the original error above.

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I have even tried it just now with downgrading to Betaflight 4.4.3. I keep getting the same thing. Even after clicking exit dfu mode keeps the green light on.

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OMG I think I might have solved it. ONE VERY IMPORTANT STEP!!! DO NOT USE THE WEB BASED Betaflight for this. Use the software download version.

red marlin Feb 27, 2025, 11:07 PM

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So now have both my Meteor75 Pro and my RadiioMaster Pocket on ELRS 3.5.3 and they both have the same binding phrase set. They still can't seem to talk. Any ideas?

clear surge Feb 28, 2025, 12:25 AM

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red marlin So now have both my Meteor75 Pro and my RadiioMaster Pocket on ELRS 3.5.3 and th...

What does the ELRS lua on the radio show?

red marlin Feb 28, 2025, 12:25 AM

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Can you be more specific?

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I'm not sure what you want me to look for

clear surge Feb 28, 2025, 12:35 AM

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Show a screenshot of the ELRS lua on the radio

red marlin Feb 28, 2025, 12:48 AM

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Is that what you were asking for?

red marlin Feb 28, 2025, 1:12 AM

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Kindly let me know what else you need

worthy geode Feb 28, 2025, 1:19 AM

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red marlin Kindly let me know what else you need

put both tx and rx into wifi mode and post screenshots of their !webui banner, options and model tabs(where applicable)

lusty pikeBOT Feb 28, 2025, 1:19 AM

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

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Instructions: https://www.expresslrs.org/quick-start/webui/#how-to-get-to-the-web-ui

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https://cdn.discordapp.com/attachments/798006228450017290/1028561424768835645/TX_Module3.0.jpg

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https://cdn.discordapp.com/attachments/798006228450017290/1028561424517169183/RX_Module3.0.jpg

red marlin Feb 28, 2025, 1:22 AM

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ive done that a bunch of times (today even)

worthy geode Feb 28, 2025, 1:24 AM

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red marlin ive done that a bunch of times (today even)

but I'm asking for the screenshot.. did you provided the screenshot anywhere?

red marlin Feb 28, 2025, 1:27 AM

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@worthy geode the screenshot of my expresslrs on the radio is above

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@worthy geode the tx and rx screenshots are coming shortly

worthy geode Feb 28, 2025, 1:28 AM

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red marlin <@779307690040098817> the screenshot of my expresslrs on the radio is above

I'm asking for the webui screenshots, not the radio..

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I've read the thread

red marlin Feb 28, 2025, 1:29 AM

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HEre is the TX

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And here is the RX Model and Options

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@worthy geode ^^^

worthy geode Feb 28, 2025, 1:31 AM

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red marlin <@779307690040098817> ^^^

does your pocket sync with other receivers or this is your only set up?

red marlin Feb 28, 2025, 1:31 AM

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@clear surge has asked for the lua screenshot from the radio

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It works with other quads, just not this one

worthy geode Feb 28, 2025, 1:32 AM

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red marlin <@492824910683570187> has asked for the lua screenshot from the radio

again, I've read the thread

red marlin Feb 28, 2025, 1:32 AM

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I have them all setup the same way with same binding phrase

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and this one used to work until I changed the camera

worthy geode Feb 28, 2025, 1:33 AM

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red marlin and this one used to work until I changed the camera

can you post a photo of the flight controller please.. both sides.

red marlin Feb 28, 2025, 1:33 AM

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the actual hardware?>

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the camera with the meteor is plugged

worthy geode Feb 28, 2025, 1:34 AM

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red marlin the actual hardware?>

yes.. I can google a photo of the FC if that's what I needed

red marlin Feb 28, 2025, 1:35 AM

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i didnt do any soldering

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it was basically unscrew three screws, unplug the old camera, plug in the new one, and screw the three canopy screws back in

worthy geode Feb 28, 2025, 1:36 AM

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red marlin it was basically unscrew three screws, unplug the old camera, plug in the new on...

what about that wire antenna for the onboard receiver? is it still intact?

red marlin Feb 28, 2025, 1:37 AM

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the thin red one?

worthy geode Feb 28, 2025, 1:37 AM

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red marlin the thin red one?

yes, the magnet wire used as the rx antenna

red marlin Feb 28, 2025, 1:38 AM

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yes, picture incoming

worthy geode Feb 28, 2025, 1:38 AM

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has this been in crashes?

red marlin Feb 28, 2025, 1:39 AM

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well that is what caused the camera to not work

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worthy geode Feb 28, 2025, 1:40 AM

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red marlin well that is what caused the camera to not work

seems like it's not only the camera that got borked then..

how hard was the crash?

red marlin Feb 28, 2025, 1:40 AM

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I guess hard enough to screw up the camera but I didn't think it was that bad

worthy geode Feb 28, 2025, 1:42 AM

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red marlin I guess hard enough to screw up the camera but I didn't think it was that bad

I've encountered a few of these whoops not working after a crash and reflowing the solder joints on the Receiver section of the circuit brought them to working order..
could just be survivorship bias, but that's my best lead at the moment

red marlin Feb 28, 2025, 1:42 AM

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ok ill take it to my local electroncs guy and see if he can do that and if not I guess I am going to have to get a new flightcontroller board?

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that's what it is sounding like to me

worthy geode Feb 28, 2025, 1:44 AM

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I am going to have to get a new flightcontroller board?
sure.. your call

red marlin Feb 28, 2025, 1:44 AM

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alright, thanks for your help, I apprecaite it

red marlin Mar 7, 2025, 10:57 PM

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I took it to the electronics shop and had them reflow the solder joints as suggested and it still isn't communicating with the radio.

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I'm going to order a new FC and see how it goes. Thanks again for help.

clear surge Mar 7, 2025, 11:09 PM

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red marlin I took it to the electronics shop and had them reflow the solder joints as sugge...

Can you show a clear photo of both sides of the FC?

red marlin Mar 7, 2025, 11:09 PM

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It is at the electronics shop and I told them I would just order a new FC and have them replace it when it arrives.

red marlin Mar 8, 2025, 5:43 PM

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@clear surge I managed to get photos of the flight controller just now.

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worthy geode Mar 8, 2025, 11:52 PM

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red marlin

is that button still functional or it's in the "pressed" position the whole time?

red marlin Mar 9, 2025, 12:07 AM

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Do you mean the boot button?

worthy geode Mar 9, 2025, 12:23 AM

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red marlin Do you mean the boot button?

yes.. there's only one button on this fc

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red marlin Mar 9, 2025, 12:54 AM

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I thought so but I wanted to double-check

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Yeah it comes undone

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I have seen that stick a couple times but if you push it it'll come unstuck

worthy geode Mar 9, 2025, 12:55 AM

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red marlin I have seen that stick a couple times but if you push it it'll come unstuck

might be better off removing what's left of it, and just short the two terminals together if you want to put the FC into DFU or the onboard receiver into bootloader mode

red marlin Mar 9, 2025, 12:55 AM

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It's not too sticky

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When I was trying to flash the board before I know I pushed it a little too hard I think

worthy geode Mar 9, 2025, 12:56 AM

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this could be causing the FC or receiver to go into bootloader mode automatically resulting in that solid green LED

red marlin Mar 9, 2025, 12:56 AM

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But I don't think that's the source of the issue because the issue happened before that

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I don't know that it's going in to bootloader mode automatically though

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If a jiggle a handle it comes undone like it's supposed to

worthy geode Mar 9, 2025, 12:56 AM

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your call..

#Meteor75 Pro - Can't connect to RadioMaster Pocket