Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
September 15th, 2017, 5:12
Hi fellas!
My Seagate-based HDD Samsung Momentus ST1000LM024 died a terrible death the other day. I am trying to connect via Hyperterminal but all I can see in the window is just weird characters.
I tried different port speeds setings, swapping RX-TX pins. Nothing helps. Another weird thing about this bricked piece of electronics is that I can't find the ground pin on the serial port.
Any guesses?
September 15th, 2017, 8:30
any unusual noise coming from the HDD ? (clicking beeping buzzing Etc.)
stiction is a very common problem with this drive
if it is then send it to a DR PRO ("not" a computer repair shop or a computer tech)
September 15th, 2017, 17:07
Connect your terminal ground to any PCB ground point, eg a screw hole. Also, be aware that the LVTTL levels are 1.8V for recent HDDs. This poses a problem for 3.3V TTL adapters.
September 17th, 2017, 21:50
jermy wrote:any unusual noise coming from the HDD ? (clicking beeping buzzing Etc.)
stiction is a very common problem with this drive
if it is then send it to a DR PRO ("not" a computer repair shop or a computer tech)
Thanx for replying, Jermy.
I cannot help but agree with you that stiction is a very common problem with this drive. I fixed the stiction problem and managed to rescue all the data off the hard drive, however. Now, the drive won't even mount and I can't use it at all. I guess there is a whole bunch of bad sectors on the drive (scratched platter or something) and the hdd's firmware has gone crazy trying to remap them.
It is not that I want to "resurrect" this bricked drive and do understand that a once broken hdd cannot be trusted anymore to hold data. All I want is to get some practice using the UART mode on Samsung drives.
September 17th, 2017, 21:58
fzabkar wrote:Connect your terminal ground to any PCB ground point, eg a screw hole. Also, be aware that the LVTTL levels are 1.8V for recent HDDs. This poses a problem for 3.3V TTL adapters.
Thanx bro,
How do I determine at what voltage levels the TTL system of my drive operates?
September 18th, 2017, 0:24
manager_lg wrote:fzabkar wrote:How do I determine at what voltage levels the TTL system of my drive operates?
Measure them.
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