3 Replies Latest reply: Feb 1, 2011 6:28 AM by turingtest2
Aiba Ueda Level 1 Level 1
I've been getting multiple errors whenever I try to sync my 160 gb ipod classic, that i bought about a month ago, Sometimes It'll be -69, sometimes -50, and sometimes -53.

I'm not sure what the problem is, I've tried restoring, reinstalling itunes, and remformatting my ipod, then restoring it, windows system checking the ipod, and it will still only do a about 100-300 songs, but some times, a few a only three, sometimes as high as about 700, before it freezes for a while, the ipod quits displaying the "synchronizing" on the screen and goes back to "connected", and gives me one of those error messages.

when it actually works, for a while, its often very slow, and the ipod goes back to the "connected" screen between every song.

can anybody help me and give me some idea whats wrong ?

160 gb ipod classic, Windows 7
  • turingtest2 Level 9 Level 9
    Is this a new iPod or second hand? Either way let's check the drive out properly with these steps...

    *Check your iPod with Diagnostics Mode*
    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 are mine for my 2 year old 6th Generation Classic:
    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.

    Problems on the media source drive may also prevent properly syncing so if the iPod checks out then perhaps your other drives need a more thorough inspection.

  • Aiba Ueda Level 1 Level 1
    its brand new, I bought it literally a month ago...

    but yeah i've got pretty high numbers on those two...

    pending sectors:328

    ahhh... does it really mean the hard drive is failing already? I really don't want to have to replace the dang thing, I just bought it.
  • turingtest2 Level 9 Level 9
    A brand new iPod should have no reallocated sectors. Assuming you haven't been playing football with it, drowning it, roasting it or freezing it then it must have left the factory with an unhealthy hard drive. Take it back to the store and insist it is swapped out under the terms of the warranty. It won't get better and needs putting out of its misery.