Re: GPS module datalogging
According to this datasheet: http://www.adafruit.com/datasheets/PMTK_A08.pdf
, Packet Type 104 (page 6) will perform a "Full Cold Restart" that resets the module to its factory settings.
When you void a product warranty, you give up your right to sue the manufacturer if something goes wrong and accept full responsibility for whatever happens next. And then you truly own the product.