Re: I need help with fixing my HDD(WD25000AAJS)

I am not 100% sure but in your case this can be three things. Damaged heads, damaged platters or firmware error. You can try to reprogram the new board with fw from the old board but if the culprit is in the fw i don't know how you can fix it.
I used wdmarvel for ROM reprogramming. I dont know if it works with Seagate drives. Sorry...
You dont need special tools for this.

Read this it might help:
[url]http://www.hddoracle.com/viewtopic.php?f=86&t=1127[/url]Re: I need help with fixing my HDD(WD25000AAJS)

Re: I need help with fixing my HDD(WD25000AAJS)

Read this article:
[url]https://hddscan.com/doc/HDD_Tracks_and_Zones.html[/url]

The heads have unique parameters that are stored in special tables (adaptive table). And adaptives are stored in special area on the platter called SA(system area).Re: I need help with fixing my HDD(W... are stored in

Re: I need help with fixing my HDD(WD25000AAJS)

Well... Let me tell you this.

If this is your first time doing this I strongly suggest that you don't. Speaking from my experience...

I did all you sad. My drive has only one platter so i thought that this will be an easy job. I didn't have to move the heads at all, they were on the ramp. The motor was spinning freely. In my case, i had a defective board. The MCU was not communicating with the spindle controller(motor driver chip) so i had to reprogram the donor board with my patient ROM.
I have identical...

Re: I need help with fixing my HDD(WD25000AAJS)

At this point am at reprograming the donors PCB with the patient ROM. . One awesome guy helped me at tomsHARDWARE, fzabkar. I am just hoping a will save my data. I don't care about the drives.

I use Hitachi as well. I read the failure statistic also. You are completely right.

Re: I need help with fixing my HDD(WD25000AAJS)

I did clean the pads on both connectors(right image). Also I cleaned entire board with isopropyl. I the meantime a made some progress. The diode on D2 is not getting -5v on start. On positive end is getting 0.04v and drops to 0 after 1-2sek. With jumper on PM2 I didn't measured any voltage

Q1= 3.9v/5v/3.3v
L1= 1.2v
L2= 2.5v

I'm trying to fix a dead hard drive (WD2500AAJS) that won't spin up.
I checked the PCB for shorts and i couldn't find any also the board doesn't have any physical damage. So i suspected that maybe the motor is dead.
I bought another drive with the same model number and identical PCB to perform a platter swap. I couldn't swap the bios/firmware because it's incorporated in the IC.
I moved the plater and PCB from my old drive to the new one but the drive still won't spin up.
At this point, I'm pretty sure that the old PCB is not working properly.
I checked the voltages...

Re: Graphics card Schematics and Boardviews

Hi. Does anyone have GTX 1070 founders edition boardview file?