phone keeps going in hibernation mode when switched on.

[Katherine72]

My phone. (Galaxy  A10)  keeps automaticaly going dark and back into hibernation/sleep mode as soon as i  press the power key and have entered my pin no to unlock the Homescreen.   Sometimes this happens a few times in succsession and i have to keep pressing the power key and re-enter my pin no to unlock the Homescreen.  ( Very Annoying!!!!!)  As far as i know and i have checked,   It is not in either power saving or battery saving mode so i dont know why it keeps doing this.   I dont want to resort to having to go back to Factory Settings.    Any advice would be greatly apprieciated. 

[Pugs1957]

If you go into settings, display, you should see screen timeout. Try increasing this setting

[Katherine72]

hi pugs1957, i will try this and hopefully this will stop it happening. As i said it is sooo annoying when it keeps doing this. Thank you for your advice. very appreciated!!!!

[Katherine72]

I've just set it too the maximum setting, 30 minutes of inactivity. it was currently on 10 minutes so it shouldn't really be going dark so quickly!!!.

[Pugs1957]

Hmm so there's no difference?