Netgear MR1100 problems !!

Hello everyone,,

I bought my router Mr1100 Telstra from ebay one year ago ,, everything works fine for me except update the device, so am fine with that ,, I recognized two problems

1- Last week I recognized that the screen not showing the data like the network name and password and the level of battery. So I tried to make a reset for the device after i did that nothing changed !! Also when I tried to login to Netgear app and website its says the router didn’t supported by Netgear?

2- my device sometimes shutdown alone even when it connected to the charger . So i need to remove the battery and reinstall the battery to start the device again ?? Any idea about these two problems??