With the most recent update, someone with a jailbroken iOS 9.3.3 tool can use Cydia Eraser to take away the jailbreak from their tool, uninstall all Cydia tweaks and programs and repair their tool to a blank non-jailbroken state, whilst living at the similar iOS model with out going to the most recent firmware.
The update arrived simply in time as Apple just lately launched iOS 9.3.4 update to patch the Pangu jailbreak. Despite the fact that the signing window continues to be open for iOS 9.3.3, it gained’t ultimate lengthy and can quickly be closed by way of Apple.
This device could also be helpful for any person who has a jailbroken software they’re looking to promote, as it shall we the vendor promote the software as a “jailbreakable” tool, which would possibly upload worth to it if it will get bought to the appropriate purchaser.
The way it works
Cydia Eraser seems to benefit from the OTA update gadget. Saurik explains the way it works in Cydia, and we’ve incorporated the excerpt under:Easy sufficient? Smartly, perhaps now not for everybody, however to summarize, it’s an overly artful software that exploits the OTA gadget in order that your tool will get all of the assets it wishes to exchange the changed information in your tool with factory-fresh ones from Apple. Consequently, you get a factory-fresh set up of your present iOS model while you run the device.
Eraser makes use of the firmware archives supplied by way of Apple for its “over the air” update function. Those information are ~2GB massive, so Eraser is going to excessive lengths to attenuate the volume of knowledge it must obtain: maximum recoveries would require not up to 10MB of switch.
First, the update’s “invoice of fabrics” is in comparison towards the information for your tool, producing an inventory of adjustments.
Then, all information for your tool which were changed or in a different way destroyed are downloaded at once from Apple.
In a chain of in moderation calculated document migrations, all new information are moved to the consumer partition, and all device knowledge is moved again to the device partition.
Up till this level, the theory is that no adjustments for your device were made which are “unsafe”: at any level, if Eraser fails/crashes or your software reboots, you'll be able to simply run it once more later.
In spite of everything, all the staged adjustments to the filesystem are “dedicated”, all consumer knowledge is deleted, and iOS is informed to run its “reset all content material and settings”.
The theory is this “crucial window” lasts handiest the general few seconds of a procedure that lasts for more than one mins.
(That stated, I nonetheless extremely suggest certainly not “messing with” the app whilst it's operating, and perhaps in case you have a large number of knowledge this may take longer than I be expecting.)
When the tool reboots, it's going to glance because it did while you first became it on; it's going to additionally now not be “jailbroken”: if you wish to jailbreak it, it is important to achieve this the use of a desktop jailbreaking software.
iOS 9.3.3 continues to be being signed through Apple, because of this that you'll be able to use iTunes to revive your software to this firmware with out going to iOS 9.3.4. On the other hand, as soon as Apple stops signing it, your absolute best guess is to make use of Cydia Eraser to take away the jailbreak out of your tool.