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Diagnostics Test: Please plug FW?

Ok, so I had been having some problems with my iPod in that when I tried to connect it to my computer, iTunes would freeze, "My Computer" wouldn't see it, etc. So one of the things I tried to do to solve this problem was see if there was something wrong with the iPod itself. I currently have the 80GB silver iPod classic. I reset the iPod using the menu and action buttons, and then put it into diagnostic boot with << and action button. I first selected the auto test, passed the quickscan, passed the keypad test, passed the wheel test, then the hold switch test comes on. I turn the hold switch on, then off, and test detects it with the 0 and 1, then hit menu to continue. Then the HP detect test, I plugged in the headphones until it said 1, and then uplugged them. Pretty much, all you do to go through these tests is do what it says so that it can read that the function is there, and then read that you removed that function, such as the HP (headphones). However, now I get to the Accessorize test. Plug in the USB cord to a power source (computer or wall outlet works) and USB_DETECT=1, and then to 0. But then it asks me to please plug FW. Which I'm assuming is FireWire. But isn't that usually used for older models? I don't have and never have had a FireWire cable for this iPod. How to pass this test? All other forums I've looked up concerning this message, most people were not trying to do the diagnostics test and had no clue what it was and what to do with it. Am I supposed to go buy a FireWire adaptor just to do this diagnostics?

Studio 1500, Windows Vista

Posted on Feb 13, 2011 8:15 PM

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Posted on Feb 13, 2011 9:09 PM

Well, if you want to run that test, then yes, you'll have to get a firewire cable.. but I wouldn't in your case.

I would first try restoring the iPod with iTunes. If that doesn't work, you might have a faulty hard drive or hard drive connector.
115 replies

Feb 20, 2016 3:48 PM in response to turingtest2

Hello !


First of all, Thanks for all this amazing work till now ! 😀


I need some advice: I have exactly 16376 Reallocs on my Ipod which never really felt (with) gravity (lol).
What should I do ?
My option are to change myself the drive, find a new ipod classic 160Gb and that it's ?


Thanks in advance !


NB: I made a windows format and still 16376 :/

Sep 30, 2016 8:28 AM in response to turingtest2

So, I have an iPod Classic, 160gb. My HDD crapped out on me and so I bought an iFlash adapter to replace the HDD with flash media. I bought a 256gb SD card and installed everything and it worked fine. Restored as advertised and loaded my entire iTunes library. Used it for a while and then it started acting up....don't remember what it was, has been awhile, but I figured I would just restore it again and reload my music. Well, I tried that and now I cannot restore it to save my life. Not sure what is going on exactly, however, I have used Disk Utility to reformat it and iTunes will recognize it and tell me I need to restore it, but I constantly get error messages telling me it can't be identified properly or it can't be restored.

User uploaded file

User uploaded file

It is almost always in Disk Mode when I connect it and if I try to do a soft reset, the Apple logo appears for a few seconds then restarts again, endlessly until either I put it back in Disk Mode or the battery dies. If i do a DFU reset, it shows me the screen with the USB plug and "Use iTunes to Restore" and I get the same results in iTunes.

I have checked the flash card and it has no errors. I have used numerous cables, bought new ones, etc... I have plugged it into my wife's Window laptop and it is fine; I can restore it and then plug it into my MBP and begin to sync it, but it never stays connect long enough to finish the sync. It disconnects after maybe 10 minutes and then i get the same message as above. I have gone into Diagnostics mode and gone to IO>HardDrive>HDSmartData and all I get are Temp data, no SmartData.... Sometimes it does not even give me that, only the dreaded, Can't Open and Drag Halt! flashing at the bottom, but if I restart it and go back in I can typically get it. As you can see from the below screenshot, it shows that SMART status as Not Supported.... I take it that's bad.

User uploaded file

I guess what I don't understand is that it is not an HDD, it is flash memory, I restored it before, why will it not restore again and what happened to the SMART status? I did have to replace the logic board on this baby, so I have a feeling that maybe that might be the problem perhaps? Not sure what else to try...

Sep 30, 2016 9:23 AM in response to Manfred34

Have you opened up the iPod again, since this problem started? Because the adapter is physically smaller and thinner than original hard drive, it can come partially loose from internal connector. The SD card can also come loose from the adapter's socket, which may be more likely. It's still connected, so it works sometimes, but not reliably.


This happened to me with my older gen "classic" iPod (uses different adapter). After working fine for a while, it started to skip songs continuously. After a reset (restart), it worked initially, but then the problem recurred. Eventually, it gave me the error screen when reset. I opened it up; the adapter was obviously not fully connected to internal connector. I reconnected it firmly, added additional padding to discourage a recurrence, and it's been fine since then.

Sep 30, 2016 9:43 AM in response to Kenichi Watanabe

I have opened it in fact, because someone from iFlash suggested that I test the SD card with a program called F3X, which basically tests if the SD card is in fact legit and for any errors, and naturally I had to remove it and insert it into my MBP. Mine tested fine, which I suspected would be the result. In any case, it did not seem like there was a problem with the adapter connection and the SD card seems to be pretty secure in its socket. And as I stated already, I am able to restore it with my wife's Windows laptop and then connect it to my MBP and start to sync it... I just can't restore with my own Apple computer, which is mind-boggling. The other problem is, it won't finish the sync, unless I am doing like, one song at a time(that is an exaggeration of course, but you get my meaning) and I have a pretty sizable library, so I won't be doing it like that. Or, it will tell me as it just did, that it can't finish the sync, because it can't find the iPod. I don't know.... I guess I will try to open it again and look more closely at the connections and ensure they are secure....

Diagnostics Test: Please plug FW?

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