Apple’s latest operating system, iOS 26, introduced the highly anticipated Liquid Glass interface, resulting in a significant visual change for iPhone users. However, this design transformation has led to numerous complaints regarding lags, glitches, overheating, and increased battery drain. As is common with early software versions, refinements are needed, leaving many users dissatisfied. Fortunately, Apple is still signing iOS 18.6.2, allowing unhappy users the opportunity to revert to this earlier, stable version. Nonetheless, the downgrade process is not as simple as pressing a button; it involves technical steps and associated risks. Notably, this procedure will erase all existing data on the iPhone, making backups crucial.
A report from WCCFtech emphasizes that this process “should only be attempted with care,” urging users to back up important files such as photos, notes, and recordings prior to proceeding. To safely downgrade from iOS 26 to iOS 18.6.2, first back up your iPhone. Secure your data using iCloud, Finder on a Mac, or iTunes on Windows to create backups, with multiple backups recommended for extra safety. Next, disable Find My iPhone by navigating to Settings and turning it off. Users must also sign out of their Apple ID to avoid activation lock issues later.
Download the appropriate IPSW file from Apple’s official site or trusted sources like IPSW.me for your specific iPhone model, ensuring the version is still being signed by Apple. Connect your iPhone to a computer using a Lightning or USB-C cable, allowing Finder (Mac) or iTunes (Windows) to recognize the device. Enter DFU mode by quickly pressing and releasing Volume Up, then Volume Down, holding the Side button until the screen goes black, and then pressing and holding Volume Down for five seconds while still holding the Side button. Release the Side button and keep holding Volume Down until Finder detects the device.
Start the restoration process: on Mac, open Finder, hold the Option key, select Restore iPhone, and choose the downloaded iOS 18.6.2 file; on Windows, launch iTunes, hold Shift, click Restore, and select the same file. Wait for the downgrade process to finish, during which the iPhone will restart multiple times. After installation, users can either restore from their backup or configure the device as new. Apple asserts that updates are essential for security, stability, and new features, noting that temporary issues such as overheating or reduced battery life are often due to background tasks like re-indexing and app updates following a major software release.
For those experiencing persistent glitches with iOS 26, reverting to iOS 18.6.2 provides a temporary fix until a more refined update is released. However, the downgrade process is best suited for users who are comfortable with technical procedures.