On 13/11/2014 18:25, wrote:

The prayer or self healing method requires that you put the logger to sleep for several weeks until it looses its position completely. The older the logger is, the quicker this happens (due to the degradation of a non-replaceable battery in the GPS itself). When the logger is brought back up after several weeks or months, it will likely reconstruct the correct year.

I tried the opposite of this. I plugged it in, switched off the sound
warnings and left it on the window sill logging for a week. But VL did
not respond favourably.

Now I will put it away and try your recipe and put it away for a while.
Maybe one for week, then two, four, eight etc.... I just got that
mythical battery fully charged, must I wait for it to go totally flat again?

Ian