READ IT ALL BEFORE YOU START
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A possible workaround for the IDE #1 ERROR when using a Cable select (CS) drive in a Toshiba laptop.
Once this modification is carried out the drive is accessable for flashing as a master/slave or region free (RPC1) subject to the F/W being available for your drive (CHECK FIRST).
This information is compiled from several sources and my experiments to try and help others but I am in no way responsible for it's final results, it worked for me when the so called experts on a laptop forum and the like wouldn't help, even though claiming to know how it's done (must affect national security or something), tossers!!!
Hey they are my drives so if I stuff it up it's my loss.
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When I installed these type of DVD drives (Toshiba SD-C2402 & SD-C2502) I would get the IDE #1 ERROR at bootup but the drives still functioned in most versions of Windows with no detectable problem?
But when I tried to flash the firmware I would get error messages like the following:
00 Master Not ATAPI device
01 Slave Not ATAPI device
Secondary:
02 Not connected
03 Not connected
Terciary:
04 Master Not connected
and
Drive not connected or open Etc. Etc.
I found a possible fix that entailed booting from a bootdisk FDD containing the firmware upgrade with the HDD removed which is supposed to not give an error but find the DVD/CD-ROM etc. but this didn't work for me, worth a try though?
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Solution.
**See diagrams**
This is how I did it: find contact 47 (next to 49) on the DVD side of the IDE connector and bridge it to contact 45 with solder or a wire.
Someone elses explanation
1. Take the DVD out of the laptop and find the 47 contact on the IDE socket
2. Take a 300 Ohm resistore and solder it to that contact
3. If you connect the other part of the resistor to the case (ground) the drive becomes master and if you solder it to the +5 volt the drive is found as slave
I also came across information stating that a resistor is not necessary and I actually found that after flashing I no longer needed the modified connector/interface as the flashing solved the problem?
I then purchased a used CD-ROM drive just for the unmodified connector to use on my drive and I now keep the modified connector for flashing purposes only, I have since sold the bare drive I bought for more than I paid, the connector thus cost me nothing :-).
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More information on the flashing firmware?
The original Toshiba firmwares are the one with 10xx and 17xx
If you have a drive with firmware 1511 then the M/S setting in this firmware is set to be Slave. But when you flash with firmware 1711 the drive set to Master.
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A few questions I asked the expert (Hijacker):
Q1. How can I tell if the DVD drive is master or slave now and what should it be? I assume the HDD is primary master and the DVD is on the secondary IDE controller.
A. Not sure about this. Actuatly it doesn't even matter.
Q2. Now that the drive is flashed/updated should I undo the modification to the IDE connector?
A. No. But you can flash it to original Toshiba firmware wich starts with 10XX and 17XX. One of these ones is master the other one is able select. I don't know which is which.
Q3. What did the IDE connector modification do, change the M/S setting thereby making the drive flashable?
A. It changed the signal for master/slave.
Q4. Does the 1D13 & XD23 firmware make the drive master or slave because the example below doesn't help me:
A. "You have a drive with firmware 1511. The M/S setting in this firmware is set to be as Slave. But then you flash with 1711 wich has inside the firmware the drive set to Master",
As I said before. I am not sure wich one is which.
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If you have other drives you wish to use in your laptop ie. CD-RW, CD-ROM like me then you may have to get another connector or only carry out a temporary modification till you have flashed to master/slave on the CS drive.
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Links:
Drive info Utility from the Guru:
http://hijacker.rpc1.org/discinfo/
The firmware updates by brand:
http://forum.rpc1.org/dl_all.php
**** NB. CHECK YOUR FIRMWARE UPDATE AVAILABILTY *****
I have tried to attach the jpeg files to this post to help explain the procedure.