Nokia 108 - How to disable messages from appearing...

i have the Nokia 108 and the same happens. text message, sender and the first few words show up on screen even when phone is locked.  'display options-notifications' are turned OFF.  also under each sim, 'display info' is turned off.
obviously for security purposes it is not good to have your messages able to be read by anyone holding the phone.
any solutions?  also if i go to NoKIA support, there are no way to ask questions and there are no software updates for the Nokia 108. 
any advice is greatly appreciated.
(ps, i also had to reply since i cannot figure out how to POST a new issue. sorry)
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burned2x wrote:
i have the Nokia 108 and the same happens. text message, sender and the first few words show up on screen even when phone is locked.  'display options-notifications' are turned OFF.  also under each sim, 'display info' is turned off.
obviously for security purposes it is not good to have your messages able to be read by anyone holding the phone.
Go to Settings> Display Settings> Cell info display to OFF and restart the phone.