What's the meaning of "Hash Sum Mismatch?"

Discussion in 'Jailbreaks and iOS Hacks' started by Jinkst, Sep 9, 2009.

  1. Jinkst macrumors 6502

    Oct 11, 2008
    London via Sydney

    I keep getting this error when trying to download some of the themes in one of the sources I have on Cydia. It seems to only be from that source. Is there an easy fix for this or no fix at all? As some of the themes are very well designed I'd like to download some but am finding it difficult to do so.

    Any help is appreciated.

  2. bella92108 macrumors 68000

    Mar 1, 2006
    You must be in Australia. It's a breakfast food generally served with corned beef, generally to poor people from the south. A mismatch of hash would be when someone serves it for dinner.
  3. Carl G35c macrumors 6502

    Aug 14, 2008
    or smokes it
  4. Jinkst thread starter macrumors 6502

    Oct 11, 2008
    London via Sydney
    However funny this is, it doesn't help my predicament unfortunately, lol.
  5. theman510 macrumors 6502a

    May 13, 2009
    New Jersey
    Did a little searching and found this thread. I am getting the "Hash Sum Mismatch" popup every time I try to upgrade some apps I have. And every time I click past it, it resprings and none of the apps actually upgraded.

    This happening to anybody else? It only started recently.
  6. findnemo macrumors regular

    Jul 28, 2006
    I don't know what the fix would be but, usually a hash is when data is encrypted using an algorithm, like MD5.

    That data + encryption process results in a hash. When it says "hash sum mismatch", that usually occurs because the data you are downloading is different than the original hash.

    In IT security the original hash must equal the downloaded or transferred hash. It's one of the many ways to prove integrity.

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