Sophos SGE Bitlocker on Windows 8.1 - Mainboard change

Hi Sophos Community,

I´ve the first case of an defective Lenovo T530 Notebook which is encrypted Sophos (v6.10 Bitlocker). I wasn´t able to save any data from the old TPM chip.

Is there any knowledgebase article, what to do, to recover the current settings to the new TPM chip or do I have to decrypt the HDD and reencrypt the HDD?

Thanks

kind regards

Marcus