iPhone 6 does not support running any version of iOS beyond iOS 12.5.1. So it's not possible to install iOS 14 on it. Show Apple routinely drops supports for older devices when releasing a new version of iOS. But also, there are some years when Apple does not drop support for any older device. E.g. All the iOS devices that supported running iOS 13 can also run iOS 14. Now to answer your specific questions:
Yes. There is a physical identifier associated with every iOS device generally referred to as A model number. Depending on the variant the A model number for iPhone 6 could be any of A1549, A1586 or A1589.
There is no official way to get around this. iOS 12.5.1 is the highest version of iOS that you can install and run on an iPhone 6. You need at least an iPhone 6s or later to run iOS 14.
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unc0ver is designed to be stable and enable freedom from the moment you jailbreak your device. Built-in runtime policy softener allows running code without Apple's notarization and pervasive restrictions. Proper runtime modifications to iOS kernel modify security features as necessary and result in: No Extra Security Vulnerabilitiesunc0ver preserves security layers designed to protect your personal information and your iOS device by adjusting them as necessary instead of removing them. With this security adjusted on your iOS device, you can run your favorite jailbreak apps and tweaks while still being protected from attackers. Stability & Battery Lifeunc0ver is tirelessly developed and rigorously tested with software stability and battery life in mind. If you're experiencing issues with stability or battery life, we recommend searching your device for faulty tweaks. Reconciliation of ServicesServices such as iCloud, iMessage, FaceTime, Apple Pay, Visual Voicemail, Weather, and Stocks, have been reconciled and still work on the device. Future Software UpdatesThe ability to apply future updates is retained. Modifications to iOS kernel are done in memory. This results in the jailbroken iPhone, iPad, or iPod touch staying operable when a future Apple-supplied iOS update is installed. iOS Updatesunc0ver Team strongly cautions against installing any iOS software update that breaks unc0ver as you can't re-jailbreak on versions of iOS that are not supported by unc0ver at that time. Jailbreak LegalityIt is also important to note that iOS jailbreaking is exempt and legal under DMCA. Any installed jailbreak software can be uninstalled by re-jailbreaking with the restore rootfs option to take Apple's service for an iPhone, iPad, or iPod touch that was previously jailbroken. Thanks to: |