My tomtom GO 920 screen appears to not turn on, however, I realize it is actually on, but it's very very dim. I have tried adjusting the brightness settings, which hasn't helped.

SOURCE: TOMTOM GO 300 THe LCD screen won't light up.

Screens that don't light up are usually caused by the bulb going ( called " The Backlight " ). Unfortunatly , on a TomTom it is intergral with the screen so cannot be replaced seperatly. You can only replace the whole screen. There are other possiblities for the screen not lighting such as the ribbon cable that goes to the screen might not be quite plugged in right or theres a break in that ribbon cable + other reasons that become less likely as we go down the list. A simple test with a miltimeter by someone with knowledge of tomtoms will prove or disprove the backlight working and you should then know where you stand. Good luck.

SOURCE: TomTom GO 920T - Language setting?

Tap screen, then tap lower middle icon, tap Right Arrow seven times, tap button with country flags, choose your language...

SOURCE: where can I get my tomtom screen replaced?

You can't you idiot. Get a new GPS.

SOURCE: Flashing X on start up

If you have a memory card in then remove it press the reset and try to start up again.

This problem is usually the way the memory card is formatted.
I solved mine by doing a search for "format tom tom memory card" or "format tom tom SD card"

After I had done that I backed up my TT then put the card in and then restored to the card and all good from there on.

SOURCE: Current time on TomTom 920

Turn on your tt. On the map screen tap the screen then tap the wrench (change preferances. Tap the forward arrow until you come to set time. Hope this helps.