Original stock firmware is here on the forum /thread/3130/kospet-firmware-hope-3gb-32gb
I suggest you flash this neilius and see how you go.
Use the firmware upgrade option.
You have the 3gb/32gb version of the watch?
I know this is older firmware but it is the best chance to get watch back to normal drive.google.com/file/d/1ksAxntA_s1FblEA4KLDOxSx2lTB2SLvm/view?usp=sharing