How to Fix "Hash Sum Mismatch" Cydia Error

Many iPhone, iPad and iTouch users facing this silly Cydia error message “Hash Sum Mismatch” many times while they trying to download Cydia tweaks to their iDevices. So that if you have a jailbroken device on iOS 5.1.1 with Absinthe or running any older jailbroken iOS version, here are some simple tips that will help you to fix this “Hash Sum Mismatch” error.

Hash-Sum-Mismatch

Fix “Hash Sum Mismatch” Cydia Error – iPhone / iPad / iPod :

Method 1: Turn off you jailbroken iDevice then turn it on again, then restart Cydia. Now try to download any tweak from Cydia, if the “Hash Sum Mismatch” error has not been solved, jump to method 2.

Method 2: You have to ensure a better internet connection, in order to do this, reset you jailbroken iDevice network settings, go to Settings > General > Reset > Reset Network Settings. Also don’t forget to reboot your network hardware (modem, router and your iOS device)

Method 3: Make sure that your Cydia is up to date, open Cydia > Changes > Refresh then update all available updates.

Method 4: If the “Hash Sum Mismatch” error still exist, try to delete the repo that containing the Cydia tweak, open Cydia > Manage > Sources, then delete the repo that caused the error.

Method 5: If the “Hash Sum Mismatch” error still exist , you have to restore and re-jailbreak your iDevice in order to install a fresh Cydia.

Please let me know which method fixed your “Hash Sum Mismatch” error.

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51 Responses to How to Fix "Hash Sum Mismatch" Cydia Error

  1. José Ignacio says:
    Maybe that’s only me but what I do when I get the Hash Sum Mismatch erron on cydia the only thing I do is try to instal it one or maybe two times more and eventually it installs without a problem either on the installation or in the final product, in this case the tweak.
  2. lucialoka says:
    jaja solo metan el deb por via SSH del tweak que quieren instalar por la siguiente ruta Var/Root/Media/Cydia/Autoinstall, ahi meteran el deb, posteriormente hacen un reboot, y listo fin del problema..saludos desde Mexico
  3. Tareen says:
    I have tried all the above methods but still getting the same message. I cannot seem to install Installous anymore. I am getting “Has sum mismatch” error any advice?
    • joachim says:
      found a fix for all erros when installing installous 5!
      1. add cydia.hackulo.us source.

      2. install appsync for ios 5.0+ (idevidually from them not together with all of them)

      3 install source gui from hackulo.us idevidually from everything else too

      4. install hackulous resouces alone dont install every1 at once

      5. install installous 5 (it will take some time 2-10 mins)

      then it should work

  4. Yushatak says:
    You don’t have to re-jailbreak to reinstall Cydia – lol.
  5. Spencer says:
    Yea i had to restore mine because it just kept coming up.
  6. C0ngo says:
    Restart springboard restart cydia……
  7. Wessyvb says:
    I fixed this problem by uninstalling all the repos off cydia and reinstalled them.
  8. daren says:
    method 1 fixed
  9. joachim says:
    i have problems with the new installous 5 ive tried all of the following except method 5 my iphone 4s is on ios 5.0.1 it came suddenly. havnt noticed anything on other downloads except installous
    • Anton Czuba says:
      When pod2g released absinthe, he specifically asked that people not use installous. Please just pay the cents for some apps.
    • Shiraz says:
      I have the same issue with installeus 5 on my iPad 3 and iPhone 4 seems the problem is server related
    • raees says:
      same dude
      except mine is on ios 5.0.1 and the same error comes up
      have you found a way of fixing it?
    • JaVaughnte says:
      Same here I cant seem to get intallous 5 to download. :(
    • Wesley says:
      Uninstall all the repo’s from cydia and reinstall them, this worked for me.
    • gino says:
      i have the same problem eith installouse 5, did you resolve it?, please mail me and help me ,
    • Dave Durkin says:
      I have the EXACT same issue as you!
      I’m on 5.0.1, and keep getting the same ‘Size Mismatch’ error whilst downloading Installous 5.
      The only difference is i’m on ipod touch 4g, not iPhone.
    • MiamiArch says:
      any fix for it yet? I’m running into the same issue
    • fonyo says:
      same phone (black 32gig), same iOS version, same situation, same workaround done, everything else works. I couldn’t find a fix yet but I guess the hackulo repo is struggling because many new jailbreakers are trying to download everything and Installous as well. this should sort out itself in a few days. if not, I’d like to see some answers as well. cheers
    • joachim says:
      found a fix for all erros when installing installous 5!
      1. add cydia.hackulo.us source.

      2. install appsync for ios 5.0+ (idevidually from them not together with all of them)

      3 install source gui from hackulo.us idevidually from everything else too
      hihi

      4. install hackulous resouces alone dont install every1 at once

      5. install installous 5 (it will take some time 2-10 mins)

  10. Io says:
    The same for me, i cant fix this issue, and now in few words the jailbreak is simply useless without installous!! Any suggestion??
  11. Anton Czuba says:
    You should have started with refresh. That is, more often than not, the cause to this problem.
  12. Tunasty says:
    Same here. I’m only getting the error for installous 5.
  13. Shirin says:
    Sum mismatch error did every thing except restore nothing works
  14. david says:
    i have recently jailbroke my 3gs 5.1.1 and when im downloading installous 5 it keeps saying hash sum mismatch,, help :)
  15. Glen Pring says:
    i cant put installous on my phone at all after restored and re-jailbreak my phone help please
  16. Tony says:
    Same here, only seems to be with Installous 5.
    I don’t think it is an issue on the specific device. I am having this problem on the following.

    iPad 2 16gb/wifi/5.1.1
    iPad 3 16gb/AT&T/5.1.1
    iPhone 4 16gb/AT&T/5.1.1
    iPhone 4s 16gb/AT&T/5.1.1

    • joachim says:
      found a fix for all erros when installing installous 5!
      1. add cydia.hackulo.us source.

      2. install appsync for ios 5.0+ (idevidually from them not together with all of them)

      3 install source gui from hackulo.us idevidually from everything else too

      4. install hackulous resouces alone dont install every1 at once

      5. install installous 5 (it will take some time 2-10 mins)

  17. Israel Rocks says:
    I have this problem only with Installous 5 !
    For me updating Cydia did the trick ..

    Thanks !!

  18. nick says:
    yup method 2 worked for me !!

    Thanks a lot !

  19. Lucas says:
    Same error on iPhone 4 5.0.1 on download of installous 5.
  20. James says:
    Had the hash mismatch problem like 20 times in a row but I kept trying. Finally it downloaded, albeit really slow, but it worked. Keep trying
    • stan alyas says:
      yea that helped me download installous 5 but the next day there was and update for installous and wen i try to update it it gives me the hash sum missmatch problem
  21. miranda says:
    i have the same whit iphone 4s and ipod 4
  22. joachim says:
    found a fix for all erros when installing installous 5!

    1. add cydia.hackulo.us source.

    2. install appsync for ios 5.0+ (idevidually from them not together with all of them)

    3 install source gui from hackulo.us idevidually from everything else too

    4. install hackulous resouces alone dont install every1 at once

    5. install installous 5 (it will take some time 2-10 mins)

  23. Mzk says:
    After several tried all methods, I successfully did installed installous5 by removed the previous version of installous.
    Hope this will helps all of you
  24. lukas_98 says:
    hy guys, i dont know but i think i can help you. 1 week ago i jailbroken my ipod 4g iOs 5.1.1. first was @ my ipod touch this hash sum mismatch fail too. a few hours ago it wasn`t here. 2 days later the ipod touch was death. then i went to the store and they repaird it :-) .
    then i jailbroken the repaird ipod. today i became the ipod from the store. when would download installous 5 the “fail” came too. i think you must delete the source and download the repo new. :D

    i hope i can help you and sorry for the bad englisch its not my nature language :D . lukas_98

  25. Eugen says:
    It worked after restarting the phone!!!
  26. Prolyfik says:
    For the installous hash sum mismatch error try switching off wifi and attempt again through a 3G connection… worked for me :)
  27. Cowboy says:
    G’day all! When you go to install Installous 5, you will see a list of all the related packages needed by Installous. In stead of hitting install, search cydia for each of the related packages that Installous 5 needs and install them each individually leaving the Installous 5 package until last. I’ve installed Installous 5 on 7 different devices (iPads 1 & 2, iPods, iPhones 3,4 & 4s) and installing Installous 5 this way has worked every time for me. Hope this helps or if you need more help please let me know!
  28. Alex says:
    thankyou so much step 1 fixed it
  29. Jose says:
    Method 1 worked!
  30. skip says:
    Method 2
  31. wingman says:
    the problem is that appsync for ios 5.0+ doesn’t come in the hackulous repo list and you have to find it from another repo. once you install this and follow joachim’s instructions all will be well. hackulous need to sort their manifest out.

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