foggy sorrel
For some reason I keep getting this error when trying to flash V3.0.1 via betaflight passthrough.
It keeps saying wrong target selected. RX is 'expresslrs module booting' what on earth is that?
The receiver also can't go into wifi mode, the light flashes fast but no wifi network can be found.
Any help is appreciated! Thank you so much guys!
trail birch
Was it working normally before this?
delicate yarrowBOT
Follow these steps to recover a bricked RX:
- Move the 5v wire going to the receiver to a 5V pad that only powers on when a LiPo is connected
- Disable Telemetry in Betaflight
- Save and Reboot
- Close Betaflight Configurator and unplug USB and LiPo
- Bridge the boot pads or hold down the boot button on the receiver
- Plug in USB
- Click "Build and Flash" in the ExpressLRS Configurator, selecting via Betaflight Passthrough method
- Wait for the line PASSTHROUGH DONE to appear
- Plug in LiPo (with boot button held down/bridged)
- Wait for the process to finish (with success hopefully)
- Unplug everything, unbridge the boot pads, then power on to confirm the LED blinks, and then goes into WiFi mode
Video Tutorial: https://www.youtube.com/watch?v=jYLwaWBkM_A
foggy sorrel
or do the full recovery flash procedure
The issue is that this is an ELRS Fyujon
I have no idea where the boot pads are. I dont think it even has them
foggy sorrel
Was it working normally before this?
Yes sir. After trying to flash to 3.0.1 it started doing this
bronze quail
I have no idea where the boot pads are. I dont think it even has them
that's the boot pad connection
foggy sorrel
Solid, I managed to enter bootloader mode
Thank you so much
it still can't flash though.
bronze quail
it still can't flash though.
what was the error message in the log?
could you post the whole log?
!log
foggy sorrel
j
foggy sorrel
no sir I closed it
What is intersting is that I cant find a lin saying PASSTHROUGH DONE
bronze quail
Log says
could not open port 'COM8'
the port is busy
have you unplugged-replug the usb cable?
foggy sorrel
that is interesting. I have all my betaflight and blheli closed
let me try one more time
bronze quail
that is interesting. I have all my betaflight and blheli closed
Cura Slicer running?
foggy sorrel
ok i managed to connect
I get a new error msg tho
A fatal error occurred: Failed to connect to ESP8266: Timed out waiting for packet header
bronze quail
Log says receiver is on uart1
serial 0 64 115200 57600 0 115200
is that correct?
bronze quail
that's correct
does it power with just USB plugged in or does it require LiPo?
foggy sorrel
it can power with USB plugged in
bronze quail
it can power with USB plugged in
so, you haven't moved the 5v wire yet as per recovery flashing steps have outlined?
foggy sorrel
to be honest that was my bad, I dont have access to a soldering station right now
is there any way to work around that?
bronze quail
as long as you can power the receiver later (during PASSTHROUGH DONE) then that'll be sufficient..
how did you get the boot junction connected to ground?
foggy sorrel
i held a wire between gnd and that tiny pad you circled
that worked fine
you're such a beast. thank you for your advice. I really appreciate it
Im just so flustered right now
bronze quail
that worked fine
until you slipped and connected another component to ground, like a positive supply.. magic smoke emerges
better wait to have access to a soldering iron..
foggy sorrel
curious why did you ask about uart 1?
bronze quail
curious why did you ask about uart 1?
I'm just checking and covering all my bases..
foggy sorrel
would it affect anything if it wasnt uart 1
bronze quail
the error message shown is often attributed to incorrect configuration or incorrect wiring..
fair mesa
Follow these steps to recover a bricked RX:
```
- Move the 5v wire going to th...
Have another say to recovery? I have Happymodel ep2 rx hall wifi, i solder boot to gnd, anh wiring gnd,5v,tx,rx (elrs) to gnd,5v,rx, tx (fc) . and turn of telemetry ơn BTF.
I flash and have error!
Note: The port same of the pot ơn BTF before disxonnect BTF!
Please help.
fair mesa
bronze quail
do not cross post.. if you want to post here, do it all here..
or keep it at #help-and-support
