# I am usingMC9S12DJ256 microcontroller. I am trying to load the bootloader through "LAUTERBACH" emulator using TRACE32 tool. After loading bootloader. I am trying to load application code. It is not loading.
Flash is locked and unable to write?
How to unlock the security bit using "LAUTERBACH" emulator?
Hi,
our support does not use Lauterbach for debugging S12 devices. In this case the best way is to contact their support.
Best regards,
Ladislav