6S upgraded to iOS11, stuck, how to downgrade

He said 6s, which can only be lowered to the lowest ios9

The lower-back system channel has been closed.

There is also an iPhone 6, the memory and CPU are simply not enough to run iOS 11, so it's best not to upgrade.

2017 seems to be a cursed year for Apple, in the first half of the year, all friends and businesses are prosperous, and Apple is unknown; In the second half of the year, Apple's new iPhone flagship shocked and suffered all kinds of headwinds. The iPhone 8 8 Plus got off to a bad start, with a full collapse of the issue price and no one in the market; The iPhone X has been in constant trouble, with insufficient pre-release production and frequent sales problems.

Although the so-called battery expansion, body bursting, OLED screen blue, camera dust are all very unlikely problems, but this is enough to make fruit fans have a big question mark about Apple's manufacturing process, no way, who made Apple the benchmark of the entire smartphone? Mu Xiu will be destroyed by the forest wind!

After the frequency reduction door", the biggest wish of the fans who are Apple users is to hope that Apple can fully open the downgrade channel, so as to restore the smoothness of the mobile phone, and this is obviously a fool's dream, it is completely impossible, after all, Apple has to consider more of the user's mobile phone replacement problem in addition to battery replacement.

Some time ago, Apple updated the iOS system again, but on the iOS version, many users of old models found that the performance of the mobile phone had declined seriously, and the running score had dropped by nearly 50%, which was really unbearable! However, soon, "Weifeng.com" and other ** broke the news that Apple fully opened the iOS operating system downgrade channel, and many users chose to downgrade the system for a while, but Apple closed the downgrade channel only two hours later, and later learned that it was likely that Apple opened the channel due to an operation error when conducting some kind of test.

A large part of the reason for the lag on the phone is that there are too many apps that are not needed in the background, which slows down the running rate of the phone, so we can click Settings - General - Background App Refresh. After entering, we close some mobile apps that we don't use often or don't want.

Clean up your phone's storage.

We can click Settings--General--iPhone Storage,After opening the phone storage,Delete some files that are not commonly used,For example**Or unused apps。 You can also clean up WeChat, QQ, and ** to clean up the parts we don't need.

If we mistakenly delete important data in the iPhone when cleaning the phone, then we can go to the App Store** Powerful Recovery Wizard and use this app to recover the important data deleted by mistake in the Apple phone.

Turn off dynamic effects.

If you want to make the phone more smooth, turning off the dynamic effect of the phone is also a good option, we click on Settings - General - Accessibility - Reduce the dynamic effect, turn on the weakening dynamic effect, so that the running rate of the mobile phone will be significantly improved.

Reduce transparency.

Reducing transparency is also a way to reduce the burden on the mobile phone's CPU, we can click on Settings - General - Accessibility - Enhance Contrast, turn on the Transparency Reduction option inside, turn off the transparency effect of the system, and make the phone run more smoothly.

Set up Location Services.

The GPS function is a very power-consuming and memory-consuming tool on your phone, but we often turn it on in order to check the weather and routes. So we can set up the location service, we click on Settings - Privacy - Location Services, and then modify the location service of the app to "During use", so that we can use GPS positioning during use.

Update iOS 11 system.

Because iOS11 has just come out, there will definitely be more or less bugs, and the adaptation of many apps is not complete, because we can update ios11 in time or update some app software in the mobile phone in time, after the update, you can find that the fluency of the mobile phone has been significantly improved.

If there is a tutorial on the Internet, you can look for it on the Internet, and be careful not to whiten apples.

Free up some phone storage space, which will make the phone run slow when the phone is at or near its maximum capacity, so it's time to slim down the phone, Settings - General - iPhone Storage.

Local**、**And some treasured xiao dian ying should be deleted,There are some suggestions from Apple's official for optimizing storage space in the recommendation column。

Save with HEIF (High Efficiency Image File Format) is a new format used by Apple in iOS 11. Compared with the general jpg**, the HEIF format can be smaller in size and without loss of image quality.

When you send **, your iPhone will also automatically convert the ** format to a format that the other party can recognize.

The auto-update function occupies the system resources of the phone, turn it off in the settings, and when you are free, you can update it manually.

Reset the system to improve smoothness.

The specific steps are as follows:

Step 1, Step 2.

Settings - General - Accessibility - AssistiveTouch - Turn on and the assist ball appears. Pull the assist ball to the bottom right corner of the screen and press the home button to return to the main screen.

Step 3 (Important).

The moment the ball jumps up, click on the screen to cancel the spotlight, and the ball will return to the bottom right corner;

Repeat this until you notice that the ball is moving up and down significantly faster, which means that the acceleration has been successful and all applications can be turned on in seconds without animation. Note that this step is difficult to do and sometimes needs to be repeated about 30 times before it succeeds.

Step 4: If you are not accustomed to using the assist ball, you can follow the second step and turn off the assistivetouch again, and the effect of second opening will not be affected.

This trick has been successfully tested on iPhone 6 Plus, iPhone 6S, iPhone 6S Plus models, if you feel that the phone is stuck, you may want to try it.

Apple 6s has been upgraded to the latest ios11 system does not support downgrading. If there is a noticeable lag in the use of the phone, you can go to the general of the phone's settings, click on the accessibility function, and turn on the option to reduce the dynamic effect.

Several solutions for Apple iphone 6s 6s plus stuck:

Fix it by restarting your phone.

When the situation of iPhone 6s Plus phone stuttering is becoming more and more frequent, you can try to solve it by restarting the phone first. After restarting, observe the use again to see if the stuttering problem has improved.

Upgrade to the latest system version.

The iOS system on the iPhone is constantly updated and iterative, and each update will fix some problems encountered in the previous version, as well as improve the performance, so if there is a new iOS system update, please try to use the update system to solve it first.

Turn off the system's translucency effect.

Personally, when using the iPhone6 Plus mobile phone, I encountered a lot of lag before, that is, when I turned on the background multitasking management. Here is a guide to the method used at the time to improve the problem of stuttering by turning off the transparency effect of the system.

Factory reset.

If you still feel stuck after following the method in Method 3, there is another method you can try, and that is to factory reset your iPhone. Since a factory reset will delete all the data on your phone, please back up important data by yourself before operating, such as contacts, text messages, ** and other data.