MI: Medusa JTAG init failed. VREF = 0.0V is less than required level. Please check target device power supply. Medusa JTAG Firmware version 1.1.0. Medusa JTAG Hardware S256 revision C. Detected TAP ID: 2B900F0F, IR Length = 4. Detected TAP ID: 07B76F0F, IR Length = 5. JTAG speed : 1000 KHz. VREF level : 2.85 V CPU : Samsung S3C6410 Core ID : 07B76F0F Flash device: Samsung OneNAND KFW4G16Q2M DDP Flash ID : 00EC0058 Page size : 2048 bytes Block size : 64 pages (128 Kb) Block count: 4096 Flash size : 512 Mb Write protection disabled. Opening "C:\Users\Renall\Downloads\SAMSUNG_GTI8000_Repair. mf" file... Writting BOOT section. Please wait... Done Disconnected Repair done.