There we all go speculating again. And not in a very smart way.
Twochai, no, ADR data is not used to compare with anything. There is no requirement to do so. The test data recorders/telemetry do all that is required. If you know of a reason to compare with other data sources, perhaps you might explain to us. The ADR is an independent archive for one use only and is not designed to be milked after every sortie.
Roulis, the crew did not install the software and they do not have a user manual for it, certainly not in the sense your words might suggest. The manufacturer and their sub-contractors write and install the software. The crew do not install the software. The software is installed by engineering personnel, once installed it resides in the aircraft systems. I suspect I may have misunderstood you as I don't think your translation is that good. But I respond to the way it sounds so that no one else thinks your statement means what it sounds like.