Here is a quick update on this issue:
- Ledger Live is not upgrading properly from v1.1.1 to v1.5 due to slightly different naming.
- At the moment, it is possible to install both apps side by side (at the same time).
- As shown in the picture below, it is also possible to uninstall them independently.
- Our recommendation is that you uninstall v1.1.1 and install v1.5
- Uninstalling the apps does not affect your keys. They are actually linked to the device mnemonic.
