TomTom Go 620, gives updates but does not install them


I have a TT Go 620 which is connected to the network and also to a wiffi that is about 50 cm away; it gives me updates but does not install them.

Let me explain, I give it to accept the updates and it goes into a loop, it starts at 77% and goes up to 99%, once it reaches 99%, it starts again with 77%. And so it can be time. What’s more, it has been connected for more than 48 hours and it continues to do the same process for me.

I no longer know what to do to install the updates. Any suggestions ???

Note: The four updates it gives me are the following; Application Version, Map version update (1060 to 1065), Traffic Radar Update and POI Update: Charging Station