Posted on 22. June 2021. by EmilyWhich VVDI MB Adapter to Unlock NEC Key Chip ? Question: Which VVDI MB adapter is for the unlocking NEC key chip? green or blue one? Solution: Use green board, your NEC is 57. Read the key on vvdi mb tool, then you will get Version you will know what adapter should be used. Sometimes you need to soldering SMD fuse on the green adapter. After reading the password of the chip, key can became unuse status, key has to be placed in ignition to become used again. This can take many hours. So using battery support is recommended. Click “Identification key” and VVDI MB soon read NEC V57 key info successfully! Key number is 1. Then click “Renew” button to virgin NEC V57 key. Wait a while key erasing complete 100% and success!