Problem with Humax 9200T remote?

HUMAX FOXSAT-HDR
I have found that over the months my two remote controls have become
increasingly unresponsive. Yesterday it became almost impossible to navigate
with the controls.
Order of what I tried from internet sources:
1. Reset box.
2. Take batteries out of remote and hold standby for 15 seconds.
3. Update firmware.
4. Remove the internal film from behind the front flap.
5. Hold the remote close to the unit.
6. remove mains plug for a few minutes.
None of the above had any effect.

I gave up and unplugged the box yesterday and watched the TV`s built in freeview.

Amazingly this morning I plugged the HUMAX FOXSAT-HDR in then powered up and
both remotes are now operating like new.
Great result but I will have to see how long it lasts.

Neil
May 2012