The iOS14.1 downgrade channel is turned on
Under normal circumstances, Apple will close the previous iOS system verification channel after launching a new version of the iOS system, which means that it cannot be downgraded after upgrading.
However, there has been an accident in recent days, Apple has rarely opened the downgrade channel of iOS 14.1, and some devices can be downgraded back to the classic iOS 14.1 system version.
From the detection website, the iPhoneXS Max China Dual Netcom version can now be downgraded back to the iOS 14.1 system version, which means that there are currently three system versions to choose from.
They are: iOS15.2.1 (19C63), iOS15.2 (19C56), iOS14.1 (18A8395).
iOS 14.1 is a very classic system, launched on October 21, 2020, when the new camera mode and 10-bit HDR video playback and editing support were supported.
Overall, the iOS 14.1 system version is a very durable system, which is smoother and more power-efficient than the current iOS15 system.
However, unfortunately, the iOS14.1 system currently only the iPhoneXS Max's National Bank of China Dual Netcom device can be downgraded back, and other devices are still unable to verify the downgrade.
Keep in mind that the dual Netcom version of the iPhone XS Max is available.
Even the current iPhoneXS Max's national bank san netcom, there is no way to downgrade back, some users tested, still can not be verified.
If you happen to be the iPhoneXS Max National Bank Dual Netcom version, if you want to downgrade back, you can directly use the Flashing App such as Elsevier Assistant to download the update package to flash the machine, and pay attention to remember to back up the data.
Other devices don't have to be tried.
AirPods 3 firmware update
Apple today pushed a new firmware version 4C170 for AirPods 3 devices, while the previous firmware version number 4C165 was released last December.
Apple still has not made any explanation for this firmware update, but only a routine indication: bug fixes and performance improvements.
For devices such as AirPods, users do not need to update the firmware in particular, and the headset will automatically update the firmware when charging the storage compartment.
I don't know what the update is