Big Problem with HA Yellow + Zigbee after flash Firmware

Hello people

I just had a real bummer happen to me. I wanted to flash another firmware on the Zigbee module to be able to use the corresponding addon.
The firmware was from here:
https://github.com/NabuCasa/silabs-firmware/wiki/Flash-Silicon-Labs-radio-firmware-manually

so far everything worked, but i clicked too fast and used this one (including commands):

universal-silabs-flasher --device /dev/ttyAMA1 \
    --baudrate 115200 --bootloader-baudrate 115200 \
    flash --allow-cross-flashing --firmware EmberZNet/beta/NabuCasa_SkyConnect_EZSP_v7.1.3.0_ncp-uart-hw_115200.gbl

However, this would have been the right thing to do:

universal-silabs-flasher --device /dev/ttyAMA1 \
    --baudrate 115200 --bootloader-baudrate 115200 \
    flash --allow-cross-flashing --firmware EmberZNet/beta/NabuCasa_EZSP_v7.1.3.0_PA32_ncp-uart-hw_115200.gbl

Now the Yellow boots up, but it can no longer be accessed. If I remove the device from the power and restart, then it works briefly with the access but also only briefly.

Do I have somehow the chance to flash the correct firmware? Would a complete reset help?
What can I do? I am really desperate.

Thank you!

how do you know what firmware you have?

I was able to solve it myself and install an older firmware.
So I was able to start the Yellow normally again:)

what addon did you need the firmware for?

How were you able to solve this? I ran into a similar issue and can no longer access the UI long enough to fix anything. Your help would be greatly appreciated!

Hi sorry for the late feedback.
I let the Yellow start completely and then I could access it via SSH.
And then I followed this tutorial:

Manually, I was then able to install the older firmware and start up normally again

Thank you! I’ll give that a try.