christian5555

Ok i managed to restore the old bios version by faking a higher version number and installed the saved BIOS file M.111. Unfortunately even after replacing the unique in /etc.defaults/synoinfo.conf it will be still reconized as 1517+ no matter what I does. Even changing the unique to 1515+ while in reset mode via telnet, I only can install a 1517+ image file instead of 1515+. EDIT: working now, you need to edit both files. /etc/synoinfo.conf and /etc.defaults/synoinfo.conf

how can I flash the old BIOS file again? Do i need to make the old file an newer version then M.911 or is there any force command to flash an older BIOS version?

Hi, just a small feedback. Afer transforming my 1515+ to 1517+ it is not longer possible to use quickconnect or the synology DDNS service. It seems the device can not be registered because the SN is not assigned to a 1517+. This lead to the problem aswell that the AME tools can not be registered successfully (so Photos is not working properly). I will try to undo the settings... lets see how to achieve that.