This happened to me one time a few months ago... I opened the trunk with the key and closed it again, then the trunk release worked as it was supposed to after that... I may have just gotten stuck or frozen or something not releasing all the way.
Mazda3, in the trunk, by the lock, there is a yellow switch. That has been somehow moved. Set that yellow switch to the other position to solve the problem.i went to open my trunk from the drivers seat and when i lifted the lever, the trunk did not open. has anyone else encountered this problem or know how to fix it?