[BUG] CeloTerminal, @celo/sdk & Ledger issues

[zviadm]

There is an ongoing issue with @celo/sdk and Ledger Hardware wallets.
This issue provides a brief summary and some potential work arounds.

CeloTerminal currently pins its dependencies on @celo/sdk v4:

• CeloTerminal and Ledger Nano X with Firmware <=1.2.4-4 should work in all cases.
• CeloTerminal and Ledger Nano S with Firmware <=1.6.1 should work in all cases.
• Ledger Nano devices with newer firmware (after support for Ethereum 2.0 was added) will work with CeloTerminal for some simple transactions, but they will start failing with "EthAppPleaseEnableContractData" errors for some more complex transactions.

@celo/sdk v5 (and maybe v8?) no longer work with any version of the Ledger Nano firmware. This is why CeloTerminal is using really old @celo/sdk v4.

Unfortunately there isn't much that can be done in CeloTerminal itself to resolve this issue. We are waiting on @celo/sdk to fix these issues.

[zviadm]

Some related open issues in @celo libraries:
celo-org/developer-tooling#221
celo-org/developer-tooling#195

[aaronmgdr]

Hey sorry its like this. We are working on releasing a new version of the celo ledger app (the one that runs on the device itself) together with upgraded celo sdks that use better tested, more modern dependencies.

[zviadm]

These issues should be fixed with #355