Hello, I've wrote a custom bootloader on address 0x8000000, that after few seconds from system booting, the bootloader will jump to address 0x8008000 and the user application that I've flashed to this area (from address 0x8008000) should be executed ...

Hi, I'm using STM32 MCU: STM32L4A6AGIxP.The IDE that I use to write the code for the MCU is: STM32CubeIDE v1.10.1.The BOOT0 pin of this MCU is floating and not connected to GND.The big problem that the MCU is SMT FBGA type and and soldered to the PCB...