I updated to 3025 and after a few days of it switching on and off (I'd try the web when I seen the icon and no data and back to 1x) it finally stayed. I'm in.the downriver area and haven't seen the 1x icon in weeks. Taylor, Allen Park, Lincoln Park, Southgate, Wyandotte, Melvindale and in Detroit (Vernor and Clark) and everywhere in between.
Just update to 3025 manually using a guide found on this site (search), even though Metro seems to be OTA (Over The Air) updating to 3025 many phones I've seen.