You can obtain official and reputable keys from the following sources:
You purchased a key from the list, but the reset fails. Here’s why: Epson Wic Reset Key List
No. Resellers do not publish such lists because keys are single-use and serialized. You can obtain official and reputable keys from
Attempting to use a key from a "free list" found on random forums or YouTube videos will result in an error. Why? Because that key was generated for someone else’s printer serial number, motherboard ID, and specific firmware version. Your printer’s challenge code is different. Epson Wic Reset Key List