How apple ios13 4 came down to 13 3

On the topic of downgrading, people ask every day, and I can see it every day in the comment area, saying, Cook, do you know that so many people need to be downgraded! Can you turn on all system verifications and free all users to downgrade? Cook: Non-existent.

Subsequently, our technology also noticed this problem, and began to study how to downgrade the device to the system we wanted, and after many days of research, it was found that the current technology cannot be downgraded lower for the time being, because of SEP and SHSH2 limitations, so the downgrade requirements are very harsh.

Someone must ask, isn't it said that a hardware vulnerability can downgrade any version? Logically speaking, it should be possible to implement any version, but it is just an imperfect system, which is equivalent to the previous self-made firmware downgrade system, and restarting the phone needs to boot up.

So about no SHH and solving the problem of SEP downgrade,It still needs to be studied.,Anyway, it's not so smooth to downgrade.,If there's a native SHH2, it's okay to say.,But it also depends on the compatibility of SEP.,If there's no problem with both.,You can downgrade.,For example, this time.。

Back to the point: this downgrade method only supports iPhone6S to X devices, other devices are not supported for the time being, for example, iPhoneXs to 11 devices, because it does not support Checkra1N jailbreak, there is no way to fix the G value in the iOS system, so there is no way to achieve downgrade.

Again, otherwise someone will be scared again, this time for the iOS system to downgrade to the iOS system, mainly to be able to use the unc0ver jailbreak tool, I don't want to use the checkra1n computer to guide the jailbreak, I want to complete the jailbreak on the phone.

Again, iPhoneX devices can only be downgraded to iOS, and lower versions will cause Face ID to invalidate or 15 days of unlimited restarts, so please consider carefully that downgrading to iOS is perfect.

iOS Downgrade method.

The device first uses checkra1n to jailbreak and fix the g-value.

Then go to the old version of the computer Aisi assistant and extract the ios

Then put shsh2 in the downgraded folder and rename it.

Then go to the [Interesting Toolbox] applet to get the downgrade tool.

The iOS firmware right-click command compresses and opens, and puts the three files out.

Then place the iOS firmware in the downgrade folder.

Downgrade the folder and rename the file according to the downgrade instructions.

Then directly click [Start Downgrade], press 1 and then press 2 to execute.

General Error Issues:

Many users encounter, all ready data points to start downgrading on the error, the problem is mainly, your mobile phone has not trusted the computer, resulting in the inability to flash, just reconnect it, pay attention to the assistant must be successfully read.

Judging from the above tutorial, it seems complicated, but every detail is explained in detail, however, we will improve it in the future, and we will update the simple version to downgrade, which is only a complex version at present, and it is not complicated at all for familiar hands, because of the needs of fans, we have to stay up all night to finish.

iOS14 is recommended to be upgraded.

New from Apple. 8p is it recommended to upgrade ios14.

Is it advisable to update.

Apple iOS 14 eight major features.

Apple phones can be automatically upgraded through Apple phones, click on System Upgrade.

But what you have to be sure is that your phone is not a card phone, there is no hidden ID after upgrading, etc.

Also, when upgrading, be sure to ensure that the phone's battery is sufficient.

Yes, upgrading directly on your phone is only part of the story. On iTunes it is a complete update of the entirety.

You can't downgrade because the version verification channel is closed, and users who have upgraded to the latest version can't downgrade.

iOS 13 is the 13th iOS version developed by Apple, which was announced on the first day of WWDC2019 held on June 4, 2019, and supports iPhone 6S and above models.

The speed of FaceID on iOS 13 has increased by 30%, the app launch speed can be up to 2 times faster, and the volume of the APP will be reduced by 50%, and the update speed will be reduced by 60%. Other new features include the addition of swipe input to the keyboard, the addition of lyrics synchronization to Apple Music, and the addition of Street View to Apple Maps.

Apple has updated iMessage's profile to show that the page is rotten, more like WhatsApp style, allowing users to share the name and ** information of contacts, and can also use memoji as a personal profile**, Apple has added more memoji customization options.

First check if your iPhone supports downgrading, and then select the corresponding rotten iPhone device model, **firmware. Finally, connect iTools to enter recovery mode to downgrade. The specific steps are as follows:

1. Before the iPhone system is downgraded, by opening IPSW ME, first we need to check and determine the system version that our iPhone system can degrade.

2. In the iPhone column, select the corresponding iPhone device model, and you can query the iOS system firmware version that can be cracked and downgraded by Apple servers, green means that the system firmware version supports downgrading, and red represents the system version that cannot be downgraded.

3. When downgrading the iPhone system, the corresponding downgrade firmware version, the specific method is as follows: through the iTools software toolbox, the iPhone system version firmware, pay attention to it, be sure to ** and query, the corresponding iOS system firmware version.

<>5. Next, I open the firmware to restore the downgrade, pay attention to the downgrade, don't mess with the phone or pull out the phone data cable, in order to avoid iPhone downgrade failure.

6. The iPhone will automatically restart the phone when the downgrade is raging, wait patiently and slowly for the iPhone downgrade progress to be completed, and reactivate the iPhone once, and then it can be used.

Notes:

After connecting your iPhone to iTunes, you'd better make a backup of your data first, because the flashback operation will erase everything in your phone.

How to downgrade iOS 14 to the primary iOS 13:

If you have made a backup before upgrading to ios14, you can directly downgrade and restore the data, it is recommended that you make a backup before the major version update. Downgrade the system through iTunes (Note: Downgrading can only be downgraded to the latest system, because of the previous ios13 lower version system, Apple has turned off the update verification!)

2. Open the iTunes app and connect your iOS device to the computer.

3. On the iTunes device information interface, hold down the Option key (for Windows users, hold down the Shift key) and click Restore iPhone....Button;

5. Tap Restore again to confirm, and iTunes will erase everything from your device and install the latest iOS 13 system.