Development option only read bottledata: If the header divisor is set (in my case because of switching between development and main versions) the samples need to be read considering the bottle values, too. Divelogs written by a SW not supporting bottle pressure have the divisor set to 0 => no impact to main SW Bugfix header memory layout: The batterygaugeregisters were not used and will be reused for other information. To keep the OSTC3 format up and running the datafield is not filled with "0x00"