"Firstly a Firmware update and erasing of the dataflash memory done. And then this is the normal screenshot of the log after recording the data as it should be.21 minutes of recording.(Raw datas also enabled)
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"By the way, I forgot to mention that I am using now APM Mission Planner 1.0.72 and ArduPlane2.24If you just erase the dataflash and let it be full, even if it is full it will not clear the memory and overwrite. and you will see the second situation"