Can Apple after sales downgrade, can Apple after sales downgrade the Apple Watch system

Hello, Apple officially does not support the downgrading of devices to the version that has been turned off for verification. For example, if your current mobile phone version is, then you go to Apple's after-sales service to request a downgrade to iOS 6 (the verification has been turned off), and they will tactfully tell you that there is no way to flash the version that has been turned off for verification. Generally, the downgrade of iPhone devices is operated by the corresponding software.

Moreover, the downgrade of the iPhone device needs to meet some necessary conditions before it can be downgraded, and there are two points that users must achieve to have the hope of downgrading.

The downgraded device is an A4 device; (iPhone4 or below).

Shsh backup with a reduced version; Please check whether you meet the above two downgrade requirements according to your own situation, if you can't meet one of them, then you can't downgrade. At present, all the downgrade tools are only for A4 devices, and Apple has turned off other versions, if we want to flash the version that has been turned off for verification, we must have other relevant versions of shsh backup, shsh backup is simply a key that can bypass Apple's system verification.

Devices below A4 can only be downgraded when SHH is backed up, and others can only be upgraded but not downgraded.

Apple after-sales service cannot downgrade the Apple Watch system. Whether it is a store or an after-sales service, the software used is also the iTunes we usually use, exactly the same. When downgrading and flashing, you need to pass the verification of Apple's server, once Apple closes the verification of a certain system version, then this system version cannot pass the verification, and it cannot be downgraded.

Of course, if the validation of this version of the system is open, it can be downgraded back.

Apple after-sales dutiesEvery Apple Mac, iPad, iPhone, iPod and display is covered by up to 90 days of free technical support and a one-year limited warranty from the date of purchase (with additional AppleCare purchases, the warranty will be extended to 2 to 3 years). If the user is unable to provide an invoice to prove the date of purchase of the product, the serial number of the product shall prevail.

Within the first 90 days of purchasing an Apple product, you can enjoy free Apple** technical support services (VIP services). Select the problem encountered by the product on the web page, and after logging in to Apple, Apple technical support personnel will soon take the initiative to contact you for manual answers.

Question: How to downgrade iPhone? Can I contact Apple's official after-sales service to request a downgrade?

After updating the system, some friends find that it is not as easy to use as the previous system version, so they want to downgrade. Experienced senior fruit fans will be downgraded by doing it themselves, and for novice Apple users, they may be worried about some problems, so they want to contact Apple's official after-sales service to see if they can downgrade.

As long as the iOS version you want to downgrade has not closed the verification channel, Apple can theoretically help you downgrade. However, when you go to Apple's directly operated retail store, you may need to make an appointment first, and you will be provided with sail disturbance service after the appointment is successful, and Apple customer service will recommend that you update to the latest version of the iOS system. In addition, downgrading will erase the data and data on your phone, and Apple will not be responsible if you lose data because you don't have a backup, and they will let you know this in advance.

If you simply want to downgrade the system, you can actually try to do it yourself, remember to make a backup before the operation. You can use a professional Apple assistant tool to backup and downgrade, for example, you can downgrade through the one-click flash function of AISI Assistant.

1.Currently, verification has been turned off for the following versions and cannot be downgraded to the following systems.

2.Please make sure that the mobile device is not enabled for activation lock, or know the ID lock account and password, otherwise the device may not be activated after downgrading.

3.If you want to downgrade, please use the classified backup function of AIS-Assistant to back up the important data on the device, and then classify and restore the data after the flashing is successful. It is not recommended to check "Retain user data and flash the machine", which may fail to flash or the device may be abnormal after the flashing is successful.

The steps are as follows:** And open the PC side of AISI Assistant and connect the device to the computer. Find the [Backup and Restore Data] function in the [Toolbox] to save the important data in the device by categorizing backups.

In [Flash Jailbreak] - [One-click Flash], you can view the current iOS version of the device that can be downgraded or flashed, select the desired iOS version, confirm the checked information, and click [Flash Now]. (Do not check Flash without checking Wipe without data during the downgrade operation, otherwise the flashing may fail or the device may not boot normally.) ）

Wait patiently for the flashing to complete, if you have backed up the data before, you can restore the data at this time, click [Backup Restore Data] in the lower left corner, and select the category to recover.

Summary. Every time the Apple mobile phone updates a system, it will turn off the verification of the previous lower version of the system, that is to say, the system that has turned off the verification cannot be downgraded, for example, the previous system has been turned off the verification and cannot be downgraded and activated. The system needs to be jailbroken, and it is impossible for you to do so after the sale, so the warranty of the mobile phone is gone, and he will be responsible for you if there is a problem, unless you jailbreak the system, there is no way.

Hello, after-sales service is to serve you in the spring, but in fact, if you want to drop the system, in fact, you don't need to find after-sales service, in fact, the system is a very simple thing, you only need to open the settings of your mobile phone buried in the forest, and then click on the universal, and then click on restore, so that the entire mobile phone can be reduced to the system where you originally bought the mobile phone.

Every time the Apple mobile phone updates a system, it will turn off the verification of the previous low-version system, which means that the system that has been closed cannot be downgraded, for example, the previous system has been turned off the verification and cannot be downgraded to activate. The system needs to be jailbroken, and it is impossible for you to do that after sale, so the warranty of the hand button comic machine is gone, and if there is a problem, he has to give you the responsibility for the void, unless you jailbreak the system, there is no way.

1 It may be that the hardware is broken.

2. Change the downgrade method and try it by flashing the system, you can use Aisi or iTunes

Useful Thank you.