Iphone X suddenly become grey and no colour , how to fix it?

1. Open the Settings app and go to "General" and then to "Accessibility"
2. Toggle the switch for "Grayscale" to the OFF position
3. That change will be instant, with grayscale off the iPhone will exit out of black and white mode and you'll be back to a color display.

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let me know if you need any more help on this.

it's better if you reset to factory default it will fix that problem but take a backup of your data

take a back up using dr fone recovery tool and restore your device

Digital processor section and T'Con board should be suspected.

just happened to mine awhile ago...did it get in contact in water or exposed to anything harsh? replacing the display flex cable might solve it... ;-)

Silly question, have you inserted cartridges in their right compartment?

Id yes!, To save yourself time, suggest you remove printer prog and reinstall latest update from Lexmark, rememeder to leave printer switched on while setting up

yes all k75's are the same (grey or not) and they come in more colours than just plain old grey? ha ha!
try looking on e-bay for any parts you need its loaded with spair parts for this bike and most are cheap too
you can also fit the k100 forks if you like, there stronger than the k75s and it stops the sudden bipping when you brake on the front wheel

hi do you mean the colour flashing on the screen, if so it's gone in to screen burn mode try press menu on the remote, retune the tv, if this don't work get back to me with model number of the tv help you a bit more thanks

shaun