Answer to: How to open the case for HUMAX RM-F01 Remote control to the iHDR-5050?I followed Philip Bradbury's method and it worked perfectly, without any lugs broken. It took me about 1/4hour in all to do - don't be scared to try it - you shouldn't to force it off. I used cotton buds and methylated spirit to clean the printed circuit board. Ensure the chrome ring is reset correctly at NSEW positions and that the battery springs are in the right place. Hope this helps someone else!