I've read on some forum that with new firmware for Holux m241 it become possible to disable bluetooth. Or it's wrong info?

I'm having an awful time trying to find the right GPS to fulfil my needs. I like the Garmin Forerunner and Edge lines for local activities that don't require more than 10 hours of data logging. I start running into problems when I look for a unit that would work for my mountaineering trips. I'm...