OK - I had the same problem in that the watch went completely blank - nothing and could get nothing to work. Had it plugged in for 72 hrs to charge - nothing. Your suggesting of pressing and holding both…
Eureka! It works! Holding the Light and Select buttons simultaneously turned on the otherwise lifeless 235. It went blank when I plugged it in for charging into a USB port on my Intel NUC PC. Never happened…
OK - I had the same problem in that the watch went completely blank - nothing and could get nothing to work. Had it plugged in for 72 hrs to charge - nothing. Your suggesting of pressing and holding both the light and select buttons simultaneously worked. The watch went to the "GARMIN (blue diamond) screen and apparently re-booted or something. The battery did not charge during the 72 hrs it was hooked up - so if this happens to you - be sure to recharge soon. Didn't check to see if I lost any data. THANX
Eureka! It works! Holding the Light and Select buttons simultaneously turned on the otherwise lifeless 235. It went blank when I plugged it in for charging into a USB port on my Intel NUC PC. Never happened before prior no matter where I plugged the USB into, wall or PC used to work fine. This is the first time it went blank after 1½ years of use. All is good now tho, thanks heaps.
I had the same issue. However pressing and holding light button and select button wasn't working for me. I would get a flash of Garmin logo and then it would die again. I got it on the charger, and held the buttons again at the same time and that gave it just enough juice to start charging. It's fully charged now.