Can the Apple 4S be downgraded now?

Apple has officially announced the official shutdown of October 17 and iOS 3 and iOS 110 System verification channel, iPhone, iPad, or iPod that has been updated to the latest iOS system will not be able to go back to the old version.

Apple 4s is now no way to downgrade, because Apple official now does not provide the firmware of the original system, unless you have backed up the original system, you can also restore to the original system, otherwise there is no way. The current iPhone and iPad cannot be downgraded after upgrading. The explanation given by Apple is as follows:

iOS adopts a recommended upgrade and enforces the latest upgrade policy, and once upgraded, it is impossible to downgrade.

There is no way, the current iPhone and iPad cannot be downgraded after upgrading.

The explanation given by Apple is as follows:

iOS adopts a recommended upgrade and enforces the latest upgrade policy, and once upgraded, it is impossible to downgrade.

It is mandatory to maintain the latest system version to prevent information leakage to users due to vulnerabilities in earlier versions.

Apple has launched the ID lock since iOS7, and the prohibition of downgrade is to prevent someone from stealing and reusing it through the downgrade method, which can effectively reduce the theft rate of iPhone and iPad.

Supplement; Downgrading requires an internet connection to be verified by Apple servers before downgrading [the official website has turned off the verification of all old systems].

Hello. At present, it is no longer possible to downgrade.

Because Apple has turned off the verification of these two systems, and the recovery system is subject to Apple verification.

It can no longer be restored by shsh.

So at present, if you want to update the system, you can only update it. Oh hope.

There is a sticker on the bar.,It seems to be OK.,I suggest you go and take a look.。

Hello. 4S can't reduce the price, each version of Apple's system needs to be networked and verified by Apple's server before it can be downgraded, and Apple has turned off all the verification before 4S.

Turn off the Find My iPhone feature first

Remember to turn it back on after restoring.

In the laser engraving on the back of the machine, you can find the model number of the machine after "Model" or "Model", such as A1723 for iPhone SE or A1633 for iPhone 6S, etc.

The model number can be found at the laser marking on the back of the machine.

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.

If you have shsh backup, you can downgrade, otherwise don't think about it.

Apple can only upgrade, not downgrade.

Only the machine that was jailbroken before can hope to be downgraded.