After upgrading to 12.2 i'm getting baker errors: Ledger Application level error (sign-with-hash): Parse error

Question

After upgrading Tezos from 11 to 12.2 (from the source) I cannot bake and endorse anymore. Baker is having parse errors:

./tezos-baker-012-Psithaca run with local node /home/piotr/.tezos-node ledger
Node is bootstrapped.
Waiting for protocol 012-Psithaca to start...
Baker v12.2 (61fed540) for Psithaca2MLR started.
Apr  2 23:26:23.342 - 012-Psithaca.baker.transitions: received new head BLRZmSRFcQ4SW6JTPpJWJm2mBAqu4BaxvvtfHBEpNmVwpLyHkY7 at
Apr  2 23:26:23.342 - 012-Psithaca.baker.transitions:   level 2247738, round 0
Apr  2 23:26:23.592 - 012-Psithaca.baker.actions: skipping preendorsement for ledger (tz1xxxxxxxxxxxx) --
Apr  2 23:26:23.592 - 012-Psithaca.baker.actions:   Error:
Apr  2 23:26:23.592 - 012-Psithaca.baker.actions:     Ledger Application level error (sign-with-hash): Parse error
Apr  2 23:26:23.592 - 012-Psithaca.baker.actions:
Apr  2 23:26:23.866 - 012-Psithaca.baker.actions: skipping endorsement for ledger (tz1xxxxxxxxxx) --
Apr  2 23:26:23.866 - 012-Psithaca.baker.actions:   Error:
Apr  2 23:26:23.866 - 012-Psithaca.baker.actions:     Ledger Application level error (sign-with-hash): Parse error
Apr  2 23:26:23.866 - 012-Psithaca.baker.actions:

I upgraded baker app on Ledger to newest version, but nothing changed. Still getting same error. What I'm doing wrong?

Answer 1

Which version of the ledger baking app do you have installed. It should be 2.2.15. If that is not the latest version displayed within Ledger Live, you will either need to update ledger live, your ledger's firmware, or both for the 2.2.15 to be available to update to.