Black and white

[Bazbins]

My phone keeps changing to black and white after the last update anyone else had the same problem and how did you overcome the issue 

[BandOfBrothers]

I've not experienced this on my phone @Bazbins  🤔 since the main Android ¹³ with Samsung One Ui 5.0 update and the following minor update not long after.

Does the phone revert back to normal on it's own  ?

Have you please checked the settings in your phone such as bedtime mode > Samsung phone display is black and white. 

Other generic troubleshooting tips are >

• Clear Cache Files from the phone's System Partition Section  > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too. 
• Safe Mode  > https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/ turns off downloaded apps and themes etc which may highlight an app or theme that's causing conflict.
• Back up and factory reset as a very last resort.

If I can be of any further help then please don't hesitate. Take care.  😎 

[Samj1]

Strange. My phone every time I go to gallery turns to black and white as soon as I exit gallery it reverts back to colour! Been onto Samsung chat 2 weeks ago and they couldn't find a fix. Annoyingly they made me do a soft reset on my phone, clear caches blah blah still no fix! 

[Bazbins]

Think I've solved the issue by turning off sleep mode came back to colour

[Bazbins]

Check your sleep mode that's what happened with mine switch it off see if that helps