cydia Impacter contra SemiRestore

elga

macrumors member
Original poster
Jul 28, 2013
81
5
Denmark
What is the difference between Cydia Impacter and Semi Restore, they do the same I think, what is best. ?
 

HenryLong

macrumors 6502
Apr 11, 2013
384
39
Germany
What is the difference between Cydia Impacter and Semi Restore, they do the same I think, what is best. ?
Cydia Impactor is different than Semirestore as after the Cydia Impactor finishes, damaged/lost files will be repaired (back to Apple stock) and the device will no longer be jailbroken.

Cydia Impactor uses the firmware archives provided by Apple for its 'over the air' update feature. These files are ~2GB large, so Impactor goes to extreme lengths to minimize the amount of data it needs to download.

First, the update's 'bill of materials' is compared against the files on your device, generating a list of changes.

Then, all files on your device that have been modified or otherwise destroyed are downloaded directly from Apple.

In a series of carefully calculated file migrations, all new files are moved to the user partition, and all system data is moved back to the system partition.

Finally, all of the staged changes to the filesystem are 'committed', all user data is deleted, and iOS is told to run its 'reset all content and settings'.

When the device reboots, it will look as it did when you first turned it on. It will also no longer be jailbroken. If you want to jailbreak it, you will need to do so using a desktop jailbreaking tool.

Where as Semirestore can not and does not repair broken system files. All it does is:

Remove all Cydia apps and tweaks. It fixes host file if there's any issue with it, clear all user data, fixes issues of permissions and privileges, fixes issues on activation, fixes iMessage/Facetime issues, fixes Safe Mode issues randomly appearing and reinstalls Cydia (if deleted).

In short, if your iOS system files are corrupt Semirestore can't fix it. You should use Cydia Impactor for best results or to fix the issues with your iDevice.

Cydia Impactor only works if you're on iOS8.1+, though. For older versions, you can (have to) use Semirestore.
 

Will22

macrumors 65816
Dec 4, 2011
1,349
707
Cydia Impactor is different than Semirestore as after the Cydia Impactor finishes, damaged/lost files will be repaired (back to Apple stock) and the device will no longer be jailbroken.

Cydia Impactor uses the firmware archives provided by Apple for its 'over the air' update feature. These files are ~2GB large, so Impactor goes to extreme lengths to minimize the amount of data it needs to download.

First, the update's 'bill of materials' is compared against the files on your device, generating a list of changes.

Then, all files on your device that have been modified or otherwise destroyed are downloaded directly from Apple.

In a series of carefully calculated file migrations, all new files are moved to the user partition, and all system data is moved back to the system partition.

Finally, all of the staged changes to the filesystem are 'committed', all user data is deleted, and iOS is told to run its 'reset all content and settings'.

When the device reboots, it will look as it did when you first turned it on. It will also no longer be jailbroken. If you want to jailbreak it, you will need to do so using a desktop jailbreaking tool.

Where as Semirestore can not and does not repair broken system files. All it does is:

Remove all Cydia apps and tweaks. It fixes host file if there's any issue with it, clear all user data, fixes issues of permissions and privileges, fixes issues on activation, fixes iMessage/Facetime issues, fixes Safe Mode issues randomly appearing and reinstalls Cydia (if deleted).

In short, if your iOS system files are corrupt Semirestore can't fix it. You should use Cydia Impactor for best results or to fix the issues with your iDevice.

Cydia Impactor only works if you're on iOS8.1+, though. For older versions, you can (have to) use Semirestore.
I was just going to say all that!

Seriously though Cydia Impactor is that good. I have used it twice and it worked perfectly. It does take some time though to finish.
 

elga

macrumors member
Original poster
Jul 28, 2013
81
5
Denmark
Thnx for the explaining
I have used SemiRestore a lot of times, but here last time I used Cydia Impactor, but I wasn't sure what the difference was.
But now I see that you got a much cleaner phone with Impactor.
 

JackieInCo

Suspended
Jul 18, 2013
5,178
1,598
Colorado
I was just going to say all that!

Seriously though Cydia Impactor is that good. I have used it twice and it worked perfectly. It does take some time though to finish.
I used it after 43GB of music got corrupted and showed as other. Impactor took about 10 minutes to run on my 64GB 6+. I was able to immediately rejailbreak and sync my backup right back on.
 

Will22

macrumors 65816
Dec 4, 2011
1,349
707
My God don't talk to me about that music app. The amount of albums I have downloaded and it only downloads a few of the songs, plus it keeps stopping at the beginning of a song when playing music through Bluetooth.
 

fongyuen

macrumors 6502
Jun 9, 2007
386
2
so if I'm on 8.4 and I use impactor, will I still be able to jailbreak it again afterwards?
 
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