Bit of a key problem on nibble

we think our key is broken. we have soldered everything in the correct place. but when flik the on switch nothing happens except a blue flash.
no noise,no screen nothing except the blue flash of light. hope you can give us feedback on how to fix this problem

Can you send a picture of your PCB/circuit board? Or a video of the issue?
Thanks, this info helps us find the issues.

Hey there @Nariman_Hekmati, thank you for supporting our project and for reaching out. Could you please send us a few photos of your device at so we could take a closer look?

Thank you,
Dora from CM