Hi all,

Apologies for my 1st post being a long winded question, but I've had this issue for about 2 years now and really just want to get it sorted!!!

I have been having a lot of trouble with my RNS 510 recently where it often turns on but the screen and all buttons are not working (no sound etc also) the only thing I can do is hold the 3 buttons at the top and reset, this usually fixes it after a couple of tries.
I have brought it to a dealer and they think there's nothing I can do with it (and maybe there isn't, but I want to try anyway!!)

I was thinking of trying to change the FW version, maybe a newer or possibly older one would help with it.

The version info is:
HW-Version - H02
SW-Version - 4120
Map version - 7918

From reading an older thread on this forum ([Only registered and activated users can see links. ]) It says the last letter in Part Delivery Number says my model? If that's the case mine is D - however I've only ever seen A, B or C referenced?

And looking at this site ([Only registered and activated users can see links. ]) which gives a list of the FW ranges for each model - there should also be a number with the model letter?

Can anyone help me out with this issue? And then I can try the best FW for my system and finally find out if that's the issue or not!!!

Thanks very much,