I believe this chip died, I've done another soldering and read on the EPROM recorder, I believe it died for good, the next solution I'm waiting for is to read the chip with liquid nitrogen plus nitrogen has not yet arrived, but I don't remember if the MRT or PC3000 has some tool to read an area of the system when the bios chip dies
rames lopes wrote:
hello my noble data recovery hiking friends i have a Seagate ST1000LM010 drive, S/N W1000V9L4 Site WU, PN: 9YH146-550, FW:CC9F PCB card: 100609264 REV B Chip ROM 25x40bl14 winbond produced in china, same drive I had loud noises and head clicks and no access to the terminal, I went after the compatible donor and with a lot of struggle I found Seagate ST1000LM010, S/N: W100SMP1, Site WU, PN: 9YH146-550, FW:CC9F PCB card : 100609264 REV B Chip ROM 25U406B SANYO produced in china, I changed the head of the damaged hd from patient to donor and head from donor to patient, after that the patient now turns on and there is no read head click, the terminal returns the message below:
SEA4 Boot ROM 2.0 (03/24/2009)
Copyright Seagate 2009
Flash boot code checksum failure!
SEA4 Boot ROM 2.0 (03/24/2009)
Copyright Seagate 2009
Flash boot code checksum failure!
SEA4 Boot ROM 2.0 (03/24/2009)
Copyright Seagate 2009
I went to check the bios with the bios reader plus the patient's bios is dead, don't read it on the recorder and on the PCB board, it doesn't even read the characteristic that is burned because it doesn't heat up, read the donor's bios that I'm going to share here, it has two errors , what solution can I use to recover the patient's ROM that does not read
my friend informed me to make a new attempt freezing with nitrogen nitrogen
what other solution
Probably ROM chip pins doesn't connect to PCB. solder it again.
Also ;
I have killed such type bios chip when heating before. It is sensitive .
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