All hard drives can fail at any time. You MUST have backups of any information you consider irreplaceable.
If the data is more important to you than the dollars it would cost to replace, you can try extracting the HDD, and recovering the data. If you’re careful, no-one will know you have opened the case…
BTW, if your device was damaged by an electrical supply surge, then it’s not a warranty issue, it’s a household insurance issue. Electrical surges are not the fault of WD, so not really fair to claim on their warranty.
Of course, we don’t know that it was an electrical surge that caused the failure…
