Home > Hard Disk FAQs > Resolve O LBA, Seagate 7200.11 BIOS don’t recognize (Part I)

Resolve O LBA, Seagate 7200.11 BIOS don’t recognize (Part I)

May 12th, 2009

This tutorial is not for inexperienced users!!! Do NOT POWER OFF YOUR hdd, computer, during it, (EXCEPT IF I SAY SO)and you just to be sure connect your computer to UPS.

First you must have to build serial rs232 converter to TX,RX GND, you can use any data cable from your cell phone from Siemens 35 series custom build data cable buid on this picture with max232. Be sure that you put zener diode 2V7 at the picture..Because you could burn your Tx, Rx, on HDD-s PCB.

So, when you build, get your adapter, connect it to this pins on Seagate drive.
[ ”””””””’| |””””’ ] [ .. ..] —-> Rx.. Tx
You do not need to connect SERIAL-ATA CABEL
open hyper terminal or another type of terminal select Serial port example “COM1”
set bit rate to 38400bps
data bits 8
parity N
stop bits 1

it’s default settings except bps.
plug power to disk and after that you will see on terminal something like this:

PART 1

Rst 0x10M
hit Ctrl + Z to get “prompt”
F3 T>

now, if your BIOS recognize disk but there is 0 LBA,0 capacity

all you need is to hit this command:

F3 T>m0,2,2,0,0,0,0,22 Enter

!!!IMPORTANT, don’t turn hdd power off, or comp off, wait about 30 sec to 2 minutes until it finished!!!

then you see something like this.

Max Wr Retries = 00, Max Rd Retries = 00, Max ECC T-Level = 14, Max Certify Rewrite Retries = 00C8 Max retries Wr = 00, Max Rd retries = 00, Max T-ECC Level = 14, Max certify Rewrite retries = 00C8
User Partition Format 10% complete, Zone 00, Pass 00, LBA 00004339, Err Code 00000080, Elapsed Time 0 minutes 05 seconds User Partition Format 10% complete, Zone 00, Pass 00, LBA 00004339, Err Code 00000080, Elapsed Time 0 minutes 05 seconds
User Partition Format Successful – Elapsed Time 0 minutes 05 seconds User Partition Successful Format – Elapsed Time 0 minutes 05 seconds

After that hit

F3 T>/2
and
F3 2>Z
Spin Down Complete
Elapsed Time 3.038 msecs

Turn off power from your HDD, od shutdown your computer.

WARNING: Please do NOT try this if you have valuable data on your drive. Do not blame anyone if something goes wrong. You do it at your own risk. Remember that if something goes wrong, it is extremely unlikely that anyone will be able to help you remotely. One wrong command via terminal could easily result in a completely bricked HDD (I really do mean bricked = no one will be able to recover it, even Seagate).

WARNING: Please do NOT try this if you have valuable data on your drive. Do not blame anyone if something goes wrong. You do it at your own risk. Remember that if something goes wrong, it is extremely unlikely that anyone will be able to help you remotely. One wrong command via terminal could easily result in a completely bricked HDD (I really do mean bricked = no one will be able to recover it, even Seagate).

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