When ESL is damaged, it need to replace new ESL. Four steps to replace ESL with VVDI MB BGA Tool: Step1. Erase EIS, then re-write EIS and personalize ESL, finally ESL is synchronized. Note: if you not erase ESL at first, but only personalize ESL, the ESL won’t be synchronized. To erase EIS, both Key … Continue reading How to replace ESL with VVDI MB BGA Tool?