This is for your information: frequently asked questions and answers of OBDSTAR X300 DP PAD key programmer registration, update, functionality and models can/cannot work.     Part 1 – Obdstar X300 DP Registration FAQs:   Q: OBDSTAR X-300DP PAD failed to register, saying … Continue reading OBDSTAR X300 DP PAD FAQs: Register, Update, Models & Abilities