PM5 won't update or reset

[Simonjj]

The PM5 screen only comes on if you press the rest button on the back, it then comes on runs through a few updates and then goes back off.

The photos show the percentage at 77 it has now got to 100 but is still doing the same thing. I've changed the batteries, and the only way to get the screen to come on is press reset where once again it goes through the update screens and switches off.

It has updating Int Lup Image, updating Ext Lup Image, Updating Bundle, Bundle Pass and then switches off

[Sakly]

Try to disconnect the sensor cable, I read in another thread it helped for the same issue of not finishing the update. At least it is worth a try.

[Carl Watts]

Remove it from the bike.

Do a factory reset.

Connect it to a laptop via USB and try an update via the C2 Utility.

If that doesn't work its pretty much stuffed.