Possible to downgrade ios 26 to 18 without a computer as I don't like it

Downgrading iOS from a newer version like iOS 26 to an older version like iOS 18 typically requires using a computer and official firmware files, and Apple generally only signs firmware for the current and sometimes the previous iOS versions. Without a computer, the options are very limited, and there’s no officially supported way to downgrade iOS directly on the device for free.

Why is downgrading without a computer difficult?

• Apple stops signing older iOS versions shortly after a new release. This means you can only restore to an iOS version that Apple is still signing.
• Without a computer, you cannot use iTunes (or Finder on Mac) to manually install an older firmware.
• Third-party tools often require a computer and might be risky or unreliable, especially for major downgrades.
• The safest and most reliable method to downgrade iOS is with a computer and the correct firmware file, ensuring your device is supported, and Apple is signing that firmware.
• Without a computer, downgrading is practically impossible unless Apple is still signing the older iOS version.

How to downgrade ios 26 to 18?

• There are third-party tools claiming to allow downgrades without a computer, but these are often risky, unreliable, or potentially unsafe.
• Many of these methods involve jailbreaking or using unofficial software, which can brick your device or cause other issues.
• It's best to avoid these methods if you're not very tech-savvy and want to reduce the chance of "bricking" your phone.

The safest and most reliable way about how to downgrade ios 26 to 18:

• Use a computer (Mac or Windows) to download the appropriate iOS 18 firmware (IPSW file) from trusted sources like ipsw.me.
• Then, connect your iPhone to the computer and use iTunes or Finder to restore it to iOS 18.Note: This process only works if Apple is still signing iOS 18.