well, the cable works, i just used the ledger for ... @MadFishCommunity

Based on the existing answers and the question, it appears that the cable was working for a different blockchain, but not for Temple. It also appears that the issue was isolated to Firefox, as switching to Chrome resolved the issue. To confirm that the issue is isolated to the browser, it would be a good idea to try activating the ledger using Ledger Live. Ledger Live is an application that allows users to manage their Ledger devices, and it is available on both Firefox and Chrome. If the issue persists when trying to activate the ledger using Ledger Live, then it could be an issue with the ledger itself, and it would be best to contact the manufacturer for further assistance.

You might try a different desktop wallet that supports Ledger to confirm that's it's isolated to Temple (e.g., Umami)

yes. i tried with chrome and it's working now. seems to be a firefox issue

Do you have ledger live activated?