Emporia VUE gen 2 stock firmware needed

[danutzgtx480]

Hello everybody,
Does anyone have the stock .bin firmware for the Emporia VUE gen 2 device ?
I need the firmware as I cannot connect to the device , it just does a long beep every few seconds with the green led on and off and it cannot be found via Bluetooth
Thank you

[baylanger]

Is the serial number/code burned into the firmware? If not, in the coming days I’m planning to extract the original firmware from unboxing.

[PepereLoulou]

[danutzgtx480]

Thank you,will test and report back in few days.

[danutzgtx480]

The firmware flash worked but it was still having the beeping / not detected issue .I noticed that when it was powered by the 5V VCC pin (not connected to mains ) the device can be paired so I figured it must be a power supply issue .After checking on the back there was a blown resistor,replaced it with a similar one (510 ohm ) and the device is working fine now.Using Esphome firmware for a better Home assistant integration.

[baylanger]

Would you have a picture showing the location of that resistor or perhaps it's associated number on the board, Rxx ?? It's surprising to see a resistor blown up.

[danutzgtx480]

It's resistor R98 . Didn't have an SMD one ,so I just used a regular one and it looks to work fine.

[danutzgtx480]

I have used the following picture of the board to get the value of the SMD resistor as mine was blown and not visible.
https://flaviutamas.com/assets/images/2021-07-28-reversing-emporia-vue-2/back.jpg

[baylanger]

My virgin firmware, taken prior to make any config, differs from the one posted by @PepereLoulou - quickly I found these to be different.

LE_LOCAL_KEY_IRK = 
LE_LOCAL_KEY_IR = 
LE_LOCAL_KEY_DHK = 

They are probably uniq for each device and allows to talk to Emporia cloud?

ssid xxALVEZxx

@PepereLoulou is that your wifi? If so, consider changing your password :)

[PepereLoulou]

Yes it's my wifi ^^

[baylanger]

I edited your wifi name hoping it gives you enough time to change all your devices' password 😛

[PepereLoulou]

Thanks ;-)