Murata can't be programmed during sleep mode

[gproduct]

I have put my murata chip into sleep and can't get it to flash.
Output on boot0 tied to gnd (pulldown 10k)

Output on boot0 tied to vcc (pullup 10k)

I have tried:

timing the reset button to get it to program: did not work
boot0 to vcc
different stlink
different cable for stlink
checked cables from stlink to board

Any suggestions? Everything worked until I have put it into sleep mode.
It is in a while loop the sleep mode, was testing the consumption.

Thanks!

[system]

What’s a Murata chip? More importantly, if you’re using STLINK for uploading, chances are good you’re in the wrong forum.

Please post a photograph of your board. That’s the easiest way for us to figure out what you’re working with.