Read Flash Memory size in Bootloader mode

[mcdino.5338840562911753E12]

Hello everyone here, I have a STM32L43x µC and I wish to read the Memory size when I am in Bootloader mode. I tried using the function Read Memory command to read the register at address (Base address: 0x1FFF 75E0) which contains the Memory size. Unfortunately this is not working. Can someone give me a quick hint on how to read the Memory address in bootloader mode? Thanks in advance

[VTaya.1]

Only read unprotected areas can be read out in boot mode. Try reading user flash code at 0x08000000 . If it works , 0x1FFF 75E0) must be having read protection active on it.