Is it bricked?

[west cloud]

Hi there!
First some backstory than my issue :).

So normally I build my own drones and flash & build my elrs receivers without any problem.. so I know how it works :).

But this time i bought a pre-build drone, the caddx gofilm 20. That has an AIO fc, so elrs onboard..

I thought it was a great idea to just update the elrs receiver with the latest firmware available. I connected to the receiver using its wifi, in the UI it mentioned 'HappyModel EP1/EP2 2.4GHz RX'. I wanted to check that first to know what firmware I had to download in the configurator..

So after building the firmware version 3.5.2 I connected again to the receiver its wifi and uploaded the file. After reboot the receiver never got into wifi mode again and I am not able to connect to it, also binding doesnt work, passthrough flash doesnt work.. tried with and without lipo, lipo connecting quickly three times doesnt do anything also so I am now kinda lost what to do.. is it bricked? What options do I have.. since its a AIO I am really confused as wel.. maybe someone has experience with caddx gofilm 20 drone?

[mystic crow]

!aio

[lavish stump]

AIO with Serial ELRS receiver recovery flash instructions:

1. Disable Telemetry in Betaflight
2. 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
3. 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&

[west cloud]

I'll try these steps tomorrow. Thx for the example!

[west cloud]

So... I've tried these steps and I was able to flash to newest and correct firmware 3.5.2.. but somehow the elrs keeps just blinking green.. not going into wifi mode and i am still not able to bind to it..

[mystic crow]

What is the blinking pattern? Show a clear photo of both sides of the FC

[west cloud]

The green led is from the elrs. FC is the caddxf4_aio_elrs. Led pattern is Slow blink 500ms on/off 'Waiting for connection from transnitter'.

As firmware i flashed to 3.5.2 HappyModel EP1/EP2 2.4GHz RX

[mystic crow]

Isn't the receiver LED the red one on the right?

Is there glue on the antenna?

Is the antenna connector shorting out against the component next to it?

[west cloud]

Omg.. I forgot that i had the boot pad still soldered.. and I thought the green led was the elrs... But seems like the red led was it all the time.. somehow i got it bind now but the led still is red. But its connected.. i expected it to be green as my other elrs receivers. I hate aio fc for now..

[mystic crow]

The manual tells you what color the receiver LED is