FuzzyDuck
Assistant Pro
This has started to happen on my CT6 recently, I can't find any debris causing this however. I have to force the mechanism with a screwdriver to release the battery.
You were right, took the battery cover apart and found the smallest piece of stone lodged in there. Now working like a charm.A lot of us have had the same problem and it is definitely bits of grit working their way under the release mechanism. Solution, put some flexible tape over the top to stop the grit getting in.