zero timestamps in exported data

[markd]

   

Could you please provide some details: is it raw accelerometer data (“with g”) or linear acceleration (“without g”)? Could you copy the first few lines of the “Device Info” (circled “I” in the menu), so without the list of sensors?

it's acc "with g"
pls see attachment for dev infos (btw it's Android 6.0.1 not 6.1, sorry)

thx