Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h5/STM32H523/SBS/SBS_DBGLOCKR#0x0
SBS debug lock register
debug configuration lock
180 (B_0xB4): Writes to SBS_DBGCR allowed (default)
https://github.com/modm-io/cmsis-svd-stm32