Since this topic is so old then i'm not sure how many of you still remember the details of solving the issue, but wanted still to share my problems and maybe someone can give some input as to what is going on. So, the drives head contacts are blocked, I'm connected to terminal and turn on the drive, it will spin up normally. After 30 sec, it will spin down and start giving error in terminal LED:000000CC FAddr:0025BF67 After this error there is no way to further input anything in the terminal. Anyway, hence i have 30 secs from switching on the power to input the Crtl+z, /2 and Z because after that the terminal will be blocked. Even though some people in this thread have suggested waiting for 30-60 seconds after turning on the power to enter any commands - don't know how this could be possible if after 30 seconds it will already block the terminal with the error. Nevertheless i've tried to enter these three commands i don't know how many times in different timing possibilities(i.e. waiting for 10, 15, 20, 30 secs before issuing the Ctrl+z or Z command). And it will always give an another error LED:000000CE FAddr:00280569 and block the terminal. Some people have received this error when entering lowercase z or not entering slash before 2, or being to fast, but i'm not doing that. In addition I tried these 3 commands with just motor connection blocked and the PCB completely removed - everything gives same result - LED:000000CE FAddr:00280569 right after Z command or if no commands are given, 10-30 sec after power-up (depending on what contacts are blocked) it will give LED:000000CC FAddr:0025BF67. Out of ideas completely.