My camera loses date and time

Reverts to 1.1.2015 in spite of resetting.

One suggestion was that it’s a failed condenser. Is this fixable or is there a workaround?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0