Diagnostic Mode, My iPod Classic doesn't have a FW Jack

Hi,


I'm experiancing a problem with my iPod Classic 6th Generation. I beleive (due to some research) that it may have some bad sectors because it repetitavely crashes iTunes during sync on random songs. I tried doing it in small chunks but it didn't seem to make a difference.


I tried Diagnostic Mode and I have gotten to the point where it's at the Accessorize Test. It says on the screen;


LCD=2


FW_DETECT=0

USB_DETECT=1

Please plug FW


I beleive FW means Fire Wire but I have no signs of a Fire Wire jack. I've tried everything and I'm stuck on this part.


Any help appreciated, I just don't want to know if you're having the same experiances as me 🙂


Thanks,

Zach

iPod classic, Mac OS X (10.5)

Posted on Jun 10, 2011 8:56 AM

Reply
Question marked as Top-ranking reply

Posted on Jun 10, 2011 6:31 PM

Your computer might not have a FireWire port and even if it does, it's no use unless you have a FireWire iPod cable. Skip the test or reset your iPod and do manual tests, which in any case will be more informative.


Check your iPod with Diagnostics Mode

It's possible that your iPod's hard drive has started to fail. Take your iPod and place your right thumb on the centre SELECT button and your left on the top MENU button. Press down both thumbs for about 6 seconds until your iPod reboots. Immediately move your left thumb around to the rewind button |<< on the left and hold this down together with SELECT for a further 6 seconds. Your iPod should now switch into Diagnostic Boot mode. Press MENU for Manual Test, then select IO > HardDrive > HDSMARTData to reveal your stats. For comparison here is a sample of mine from 6th Generation Classic after I'd had it for about 2 years.

Retracts: 889
Reallocs: 12
Pending Sectors: 0
PowerOn Hours: 2202
Start/Stops: 894
Temp: Current 24c
Temp: Min 10c
Temp: Max 50c

Take a note of your results. When finished press SELECT & MENU for 6 seconds to reset the iPod again.


With modern disc drives sectors are no longer marked bad by a disc scan, if the SMART firmware detects a sector it has trouble accessing it will attempt to invisibly reallocate it to a spare area of the disc.


Note that I've only 12 remapped sectors and none pending. To help explain what the numbers mean here is an extract from the Wikipedia S.M.A.R.T.article:

Reallocated Sectors Count
Count of reallocated sectors. When the hard drive finds a read/write/verification error, it marks this sector as "reallocated" and transfers data to a special reserved area (spare area). This process is also known as remapping, and "reallocated" sectors are called remaps. This is why, on modern hard disks, "bad blocks" cannot be found while testing the surface – all bad blocks are hidden in reallocated sectors. However, as the number of reallocated sectors increases, the read/write speed tends to decrease. The raw value normally represents a count of the number of bad sectors that have been found and remapped. Thus, the higher the attribute value, the more sectors the drive has had to reallocate.


Pending sector count
Number of "unstable" sectors (waiting to be remapped, because of read errors). If an unstable sector is subsequently written or read successfully, this value is decreased and the sector is not remapped. Read errors on a sector will not remap the sector (since it might be readable later); instead, the drive firmware remembers that the sector needs to be remapped, and remaps it the next time it's written.

Large numbers of Reallocs or Pending Sectors would suggest your drive is failing and that you may need to repair or replace your iPod. Check your stats after another attempt to update your iPod. If the numbers increase that again points to hard drive failure. While it won't be good news at least you'll know it isn't some random software problem and you can decide what to do next.


tt2

104 replies

Jul 21, 2013 6:50 AM in response to turingtest2

Yeah, my device didn' even reset. I held onto the menu + select keys for 12 seconds 3 different times and it just keeps rebooting. It seems to keep rebooting before registering what I am selecting on the click wheel. The automatic diagnostic test says everything is working fine on the click wheel/buttons/hold button/head phones front.


I can get it into disk mode when it's on the iPod Alarm Clock Dock, but the second I connect it via USB to my computer, it starts the reboot loop.

Aug 21, 2013 9:20 PM in response to turingtest2

Hey! I'm having trouble with my iPod Classic (Built 2011). I think the HD is nearly dead, look at these numbers taken from the HD S.M.A.R.T. test:


Retracts: 53.

Reallocs: 16376.

Pending Sectors: 0.

PowerOn Hours: 545.

Start/Stops: 19443.

Temp: Min 19c.

Temp: Max 54c.


Since buying a new Classic here in my country is really expensive, what model of HD would you suggest? If it can be found on Amazon would be very nice.

Aug 28, 2013 2:31 PM in response to turingtest2

Just synced my iPod, took about 6hrs and it synced 9511 from 9546 songs. I'm currently using it on my Speaker Dock and it sounds fine, plays whole songs without jumping or skipping (There are songs where it didn't showed the artwork). However, I'll buy a new HD just in case. S.M.A.R.T. data is the same since last check.


On the temp. I've got another Classic (HD is fine, 0 Reallocs & Pending Sectors) and the stats show max temp also at 54c. I'll try not to leave them in my bag all the time. 🙂


Thanks for your help, I'm really grateful.

Nov 24, 2013 7:07 AM in response to turingtest2

My 80gb iPod Classic has been freezing halfway through the sync, forcing me to restart iTunes with the task manager and ejecting my iPod through My Computer. I broke up the sync into smaller portions, formatted my iPod, attmped the recovery of bad sectors, scanned it with my anitvirus, you name it I tried it. After I checked it in Diagnostics mode, here are my stats:


Retracts: 126

Reallocs: 507

Pending Sectors: 56

PowerOn Hours: 1332

Start/Stops: 447

Temp: Current 24C

Temp: Min 15C

Temp: Max 47C


I'm definitely not a computer savvy person, especially with Apple products, considering my iPod is the only Apple product I have, and have only had it for a year. But based on other users' results, I don't think my numbers are looking too good. I bought my iPod used from Gamestop, so is there anything I can do, or should I start putting some money back for a new iPod?

Mar 1, 2014 11:54 AM in response to turingtest2

Hello i've been having similiar problems, my classic is freezing while syncing.


My SMARTDATA Is:

Reatracts: 7

Reallocs: 1816

Pending Sectors: 120

PowerOn Hours: 1881

Start/Stops: 28000

Temp: Current 24c

Temp: min 0c

Temp: Max 55c


Can you please help or tell me if my ipod should be replaced or can be repaired it's a 2007 model so it's been through the ringer but i have always tried to take care of it. I thought it was the AAC formating for my songs on Itunes so I recently coverted all my songs to MPEG.


When i sync it'll stop randomly, on the actul ipod it will say conected but on the computer it will say syncing. I've had this long enough to know that isn't right. I've reset it via itunes and on the actual device it self, but the first couple tries via itunes it said data was corrupt.


Any help would be highly appreciated, Denali.

Oct 9, 2014 5:38 AM in response to turingtest2

Apple Support call just referred me to your thread because my iPod 160GB many years old, which I use as a hard disk via USB keeps dropping the connection to the computer. I have used a MacBook Pro late2008 with OSX10.7 or 10.9.5 and a new iMAc with 10.9.5, two different USB cables etc. Same problem. Drops maybe once an hour. Doesn't relate to computer sleep. Symptom is that the .docx I am working is not saved unless I 'Save As' and give it a new name and location. Otherwise 'Save' just does nothing, as the iPod mount icon is no longer visible on the Desktop. I have Reset and Restored the iPod - no change.


Readings on the HD SMART test:

Retracts 229

Realloc 1280

Pending 0

Power hours 15535

Start/Stop 7872

T current 35C

T min 7C

T max 53c


From the thread it seems the HD may be doing an OK job at reallocation. Any suggestions on why it drops connection and what to test next?

Oct 9, 2014 5:59 AM in response to simon61

I'm afraid I don't know any details of the behaviour of the firmware on the iPod as regards sleeping, but it may be that it has an independent sleep mode timer separate from anything operated by the OS. You could try activating the select button say every 30 minutes as a test to it that will keep the device "alive" for longer than an hour.


Personally I would not recommend using your iPod classic as the primary working or storage location. Edit your documents on local storage and backup to at least one secondary location like your iPod or a memory stick.


tt2

Jan 9, 2015 5:51 AM in response to turingtest2

My iPod classic 160 GB cannot start. Once I attached it to power it stays at the apple and cannot go further. I tried restore, but an error occured, I tried erase from windows but an error occured as well.


SMART DATA:

Retracts: 253

Reallocs: 0

Pending Sectors: 2

PowerOn Hours: 10052

Start/Stops: 2032

Temp Current 29c

Temp Min 12c

Temp Max 51c


HDD SPEC - [Device Opened]


I would appriciate any help.

May 12, 2015 5:45 AM in response to SandraHoutz

Hello all i just did a diagnostic on my iPod Classic and here are my numbers


Retracts 11

reallocs 3136

pending sector 1704

power on hrs 58


start/stops 4349

temp current 24c

min 4c

max 54c


with the high numbers on my reallocs and pending sector? does this mean my hard drive is failing? as its no longer working on my iTunes etc

tried everythign


what can i do to fix this thanks

Aug 21, 2015 4:53 AM in response to turingtest2

I lost all my music on device. Then when i plugged it into my pc it would just freeze itunes . I was finally able to do a retore but it didnt work.properly. And now when i plug the ipod into itunes it says itunes needs to restore ipodbut every time I try it stops and comes up with a error screen. Iv tried almost all those tests every time it just wont let me restore

Thankks!

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Diagnostic Mode, My iPod Classic doesn't have a FW Jack

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