I cannot enter pre-boot no matter what I do. I tried several solutions (based on catymag major thread) but nothing helped.
I tried the following:
1.Holding the power button and quickly plugging the USB
2. Holding power and top left and quickly plugging USB
3. Holding power and top of "RM" in Garmin logo
4. After full discharge, holding power an powering using USB.

If there is anything that I missed, I would be happy to try some other things for my 265W.