This article provides a solution for resolving the 0x6511 error that may occur when attempting to connect a Ledger device to a third-party wallet. One of the possible reasons for this error is having the wrong app open on the Ledger device or no app opened at all while being on your Ledger device home screen.
Your Ledger device may return the following error message:
Something went wrong.
Ledger device: UNKNOWN_ERROR (0x6511)
To solve this error, try the following:
- Ensure that the correct app is open on your Ledger device. When using HashPack to manage HBAR, make sure to open the Hedera (HBAR) app on your Ledger device
- Make sure everything is up to date.