12-22-2011 03:08 AM
i have a Seagate Barracuda 7200.12 1tb drive which stopped being detected by bios at some point.
The drive spins up, i hear the normal head initializing sound and then..nothing. The drive is not detected by bios at all. I put it in an external sata case, same thing.
Thinking that it may be the pcb at fault, i ordered a new pcb with same fw revision etc. I installed it and the drive was detected in bios, but i made clicking sound, like it didn't know where to read data from, and after a while it stopped.
Searching around i found about eeprom swapping, so i did that -i have an smd rework station. Result was as if i had the original pcb on, drive spinning up but not detected.
I swapped back the eeproms and am now in step one again..
Now, i am not a hard drive expert, but from what i can understand is:
-Either the original eeprom was damaged when the drive failed
-The preamp is off
-Or it has a similar problem with the 7200.11 i read in other threads.
I want to recover the data, however i do not want to send it to recovery company.
Any ideas? Anything else to check/try?...
Thanks in advance
12-22-2011 03:56 PM
12-22-2011 07:35 PM
The only option is: buy exact the same hdd and swap the heads, the pre-amp would be switched at the same time.
There are some very good Data-Recovery Tools out there also for Linux and FREE
12-23-2011 12:11 AM - edited 12-23-2011 12:32 AM
Elias, If you do get an answer on how to recover please drop me a private message for I also posted yesterday with someone helpin to copy the data (since HDD is seen from BIOS but not from Windows nor an external enclosure connection); all we need is to copy the stuff from DOS mode - For some strange reason I didn't get help till now
12-23-2011 01:00 AM
i'll try to get some serial data (just info) out of it, maybe it will help.
other than that, i will wait until some more "official" fix comes out for this series of drives (if it's indeed the same problem like 7200.11)
If that does not prove to be the case, i'll consider buyng a head swap tool and a donor drive..that would be a bit difficult because noone at the moment is selling their large capacity drives, but i hope prices on new drives will revert to normal in 2012..
03-19-2012 07:05 AM
Just keep restarting your computer. Take the drive out for a while and try again in a few minutes/hours. My 7200.12 has the same issue; it disappears entirely from my system. Caused me quite a panic for a while, but eventually it showed back up so I quickly backed up all the data that was on it.
SeaTools gives a full pass even after updating the firmware so I doubt it's any mechanical failing of your drive. Most likely it's just a flawed design.