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what's going on youtube geoff9 here so
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in today's video i'm going to show you
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how to save your blobs for ios 15.0
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15.0.2 but before that this video is
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brought to you by any trends a software
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that allows you to manage the photos
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music videos messages and so on on your
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device it's a place where you can manage
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all the data on your device in one
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single application and even drag and
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drop content to your device in order to
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quickly transfer it to the device
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definitely check it out in the links
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below yes 15.0 can still be saved
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because the rc is still signed now as
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you probably know ios 15.0.2 was
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released yesterday with only one change
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a patch for the i o mobile frame buffer
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vulnerability here and of course
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security researcher sar amar already
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posted a proof of concept in here that
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we can use for jailbreak purposes
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however if you want to save your blogs
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for downgrade purposes which i
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definitely recommend if you're into
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jailbreaking stuff like that you can
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still save not only 15.0.2 or 15.0.1 you
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can also save 15.0 so the normal ios
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15.0 is no longer signed as you can see
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from here on my website
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however ios 15.0 beta or the final rc
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release candidate is still available
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here not sure why apple still signs it
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but it's still available and can still
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save your blobs so i would definitely
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recommend you to do that because it's
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much better than going to 15.0.2 which
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patches this vulnerability here that we
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already got in a full write-up that
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contains everything we need to know so
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how do you save that well at first you
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need airsquared's blob saver this one is
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one of the most advanced tools at the
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moment and it works with a12 a13 and a14
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devices as well and it even supports the
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latest devices like the iphone 13. so at
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first what you need to do is to get it
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from here it's available for both
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windows mac os and linux and as you can
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see you have the options to download it
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from here once you have it in my case
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for mac all you need to do is to open it
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and you're going to see this now one of
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the good things about this tool as i
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mentioned in my previous videos is the
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fact that it can read the data directly
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from the device you don't have to paste
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your ac id or to specify your app nodes
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manually you just press read from device
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here it's got my ac id my device type
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and my model and of course if your
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device was a12 a13 or a14 or anything
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newer you would specify in here the app
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notes but you would read it from the
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device as well so once you have all this
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in this configuration and the device
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plugged in you press go in here and it
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will save the blobs for you now these
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blobs can be used for downgrade purposes
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you will not be able to downgrade or
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upgrade in the future to an unsigned ios
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version if you don't have the blobs so
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let me explain for a second how they
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work you see when you go ahead in here
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and you see that the ios version is
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signed it means that when your device
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requests to go back to 15.0.1 for
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example the apple server will return a
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response containing some keys and stuff
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like that that will work for the device
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to actually accept your firmware but if
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it's no longer signed the apple server
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will just return an error now what
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saving blobs does is that it saves that
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response the apple server would give to
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the device if the version is signed
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however the catch is that you can only
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save those blobs while the version is
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signed you can use those blobs later
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when the ios version is no longer signed
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but you do have to save it only when
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it's signed so as you can see it says in
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here success it saved the versions
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however it did not save the beta the
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15.0 to do that you go ahead here on the
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beta version and for this you have to
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specify a url how do you find that well
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you go ahead here on the
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idevicecentral.com you press ios signing
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status and of course you select your
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device from the list in this case it's
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an ipod so i'm gonna go in here and
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select the one and then you wait for all
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these signed versions to appear you go
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here on the ios 15.0 beta right click on
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the blue text here the build number now
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this is going to get the ipsw if you
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click on that you're going to get the
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ipsw for the beta but we don't need the
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ipsw we just need the link you paste it
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in here on the beta version make sure
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it's for your device the one that it's
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in here and you press go this way it
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will save the blobs for your beta
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including 15.0 which is no longer signed
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at the moment so as you can see it says
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in here success now this is where it
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saved them users geosnow blobs so i'm
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gonna go right there alright so i am in
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the blobs folder in here let me make
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this bigger and as you can see we do
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have 15.0 over there it was saved today
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sitting here at 7 58 am so now if you
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open it i'm going to try to open it with
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xcode we will be able to see the content
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of the blob you can see it contains a
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lot of base64 encoded stuff but it also
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contains the generator that you have to
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set when you downgrade your device with
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future restore so with this you have
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basically a ticket to actually downgrade
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in the future if a jailbreak appears
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without it you wouldn't be able to go
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anywhere back so yup that's how you do
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it this tool is actually incredible it
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was updated recently to support newer
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devices it isn't here add new iphone and
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ipad models so that's actually great
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because you can use it for a12 and 813
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as well and you do not have to be
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jailbroken to save your blobs and of
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course you do not have to update to the
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version you're saving your device can be
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on 14.3 but you can still save your
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15.0.2 blobs no problem no update you
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just need a unique device id from the
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device which this tool can actually get
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by itself by just pressing in here only
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read from device so yeah that's
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basically definitely do it right now
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because i have no idea how long apple
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will keep signing that rc because ios
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15.0 is long unsigned so not sure why
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they keep that beta but definitely take
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advantage of that opportunity and of
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course save your blogs thank you for
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watching i am just now and peace out
