Avensis T3 1800 Hatchback 2003 - Tailgate OPEN & lock locked

Hi, there
I have an Avensis T3 1800 Hatchback, 2003.
The lock on tailgate was a bit uncertain when trying to open it from outside. Seemed to unlock with central locking but when gripping the tailgate to pull it open, not always good. So with the tailgate open, I used a screwdriver to move the locking lever across, thinking it needed some to+fro to loosen something. But it remained in the lock position and it is stuck in the locked position with the tailgate ajar. Tried lock+unlock with central locking. Tried using key on the doors to do the central locking, but that tailgate lock is not moving. And I cannot close the tailgate 😞 

I have looked at the tailgate lock from inside but there seems no obvious way to proceed. Is that plastic thing a cover that comes off with a pull? And then using a screwdriver can I get the lever back to its open position? And hopefully then return things to how it was before?

Hi Ken,

If it wont open with a screwdriver then it time to remove the tailgate inner panel then you probably see a handle that operated the door lock.