How to fix common errors in iOS 26 on iPhone and iPad

If you’re looking to fix common iOS 26 errors and problems right after updating your iPhone or iPad, then you’ve come to the right place.

You just upgraded to iOS 26 to experience new features like Backgrounds in Messages (which allows users to customize individual wallpapers for each conversation in the Messages app), Liquid Glass design, emoji matching, Adaptive Lock screen, Games app, Widgets in CarPlay, Hold Assist and more. But instead of enjoying yourself, you encountered a series of problems during or after the update and are looking for ways to fix it. Then this article is for you.

Below is a summary of all errors and problems that may be encountered during or after upgrading to iOS 26, along with specific solutions.

List of common errors in iOS version 26 and how to fix them

Battery drains quickly

iOS 26 has had many errors since its launch, and one of the biggest problems is the battery. The cause could be Liquid Glass or some other reason, the battery drains very quickly.

How to fix battery drain error quickly on iOS 26:

• Location service: Location services can consume a lot of battery. Not all apps need location access all the time, so turn off unnecessary apps. Go to Settings > Privacy & Security > Location services to check which apps are enabled.
• The application consumes battery power: Check which apps are consuming the most battery: Go to Settings > Battery on iPhone. If you see any unusual applications, update to the latest version.
• Reduce screen brightness: The screen is one of the components that consumes the most battery on the phone. Consider reducing screen brightness to improve battery life.
• Control notifications: Every time there are spam notifications from shopping or game applications, the screen will light up and consume energy to update. You should turn off notifications from rarely used apps. You should use the Automatic Brightness feature to let the device adjust itself to the environment, avoiding the screen always being at the highest brightness level causing heat generation.
• Turn on Low Power mode (Low Power Mode): When Low Power Mode is turned on, iPhone will turn off or slow down some services, helping you extend battery life. However, this is only a temporary solution.
• Reset all settings: This is not the ideal solution, but if you have tried everything and it still doesn’t work, there is still this option. Go to Settings > General > Switch or reset iPhone > Reset > Reset all settings. This will force you to reset a lot of things later, but if there’s a system error lurking underneath, it might fix it.
• Completely fresh install: If all else fails, the most radical solution is to completely restore iOS. Note: If possible, do not restore from a backup but start from scratch. However, this method will cause you to lose all your old data and settings.
• Contact Apple: In some cases, all measures will not solve the problem. At this point, the only option is to contact Apple for support. You can call, contact online or go directly to the nearest Apple Store.

The device is slow or too hot

If your iPhone slows down or heats up after updating iOS 26.

The first reason that you should think is due to Liquid Glass. The fix is ​​quite simple: turn this feature off.

How to turn off Liquid Glass:

1. Turn off Clear Icons: First, do not use the new set of transparent icons (Clear icons) on the home screen.

• • Press and hold on the home screen until the icons start shaking.
  • Tap Edit in the upper left corner.
  • Select Customize and change from Clear to Default.

2. Turn on Reduce Transparency: Next, you need to turn on Reduce Transparency mode.

• • Go to Settings > Accessibility > Display & Font Size.
  • Turn the Reduce Transparency switch to On (ON).

Second reason The reason why the device is overheating is because applications running in the background continuously send data to the server.

How to fix:

• You enter Settings > Privacy & Securityfind the item Tracking and turn off the feature completely “Allow apps to request tracking. This helps significantly reduce the load on the CPU, helping the machine operate cooler.
• Next, review the Location Services section, switch all unnecessary applications to “When using applications” mode to prevent the GPS chip from working in the background, causing battery drain and continuous heating.
• Disable unnecessary background features: There is a hidden culprit in iOS 26 that heats up the device, which is the Journaling Suggestions feature. Please turn this feature off in Privacy settings.
• Turn off Background App Refresh for unnecessary apps. Only retain background permissions for essential applications such as Zalo or Messenger, completely fixing the battery drain error.

Weak WiFi connection

You may experience weak WiFi after upgrading to iOS 26, including no connection, intermittent connection drops, or slow speeds.

Fix WiFi problems on iOS 26:

• Restart your iPhone
• Restart the WiFi router
• Reset network settings: Settings > General settings > Switch or Reset iPhone. Then select Select Reset > Reset network settings. You will need to authenticate and then log back into your WiFi network.
• Enable/Disable WiFi Assist: Settings > Cellular/Mobile Data.
• Forget and reconnect WiFi
• Reset iPhone: This should be the last resort if all of the above methods do not work. Before doing this, make sure you have backed up your iPhone to iCloud because this will erase all data on the device.

Error “No service”

If after installing the official iOS 26 version, the iPhone displays “No Service” and the SIM has no signal, it can be due to many different reasons.

Fix “No Service” error after updating iOS 26 on iPhone:

• Turn on/off Airplane mode.
• Restart your iPhone
• Check the SIM card
• Reset network settings
• Reset the entire iPhone

Stuck at the “Update Requested” screen

During the iOS 26 OTA download process, iPhone may get stuck on the “Update Requested” screen.

How to fix iOS 26 error stuck at “Update Requested” on iPhone and iPad:

• Simply reboot the device and check for OTA updates again.
• Try Hard Reboot
• Try updating via iTunes/Finder instead of OTA: Instead of updating via OTA, you can download the IPSW file for your device and then update using iTunes on Windows or Finder on Mac.
• Wait patiently: Wait patiently and try again after a few hours because the error may originate from Apple servers being overloaded.

Stuck at the Apple logo

After installing iOS 26 and restarting, iPhone is stuck on the Apple logo.

Reason:

• Insufficient memory capacity.
• Hardware incompatibility.
• The update process was interrupted or not completed.

How to fix iOS 26 stuck on Apple logo screen:

• Forced start
• Restore using DFU Mode: If force booting doesn’t work, try putting your iPhone into DFU (Device Firmware Update) mode. Note: this method will delete all data, so you need to have a recent backup.
• Use system error repair tool (no data loss)
• Restore via Finder/iTunes
• Check battery and memory capacity

Stuck on “Preparing Update” screen

You downloaded the iOS 26 OTA version and got stuck on the “Preparing Update” screen and couldn’t install.

Fix iOS 26 error stuck at “Preparing Update”:

• Restart your iPhone
• Make sure your Wi-Fi connection is strong and stable
• Delete the OTA update and download it again
• Free up memory space

Error “Could Not Activate iPhone Activation”

Updated to iOS 26 and got the error “Could Not Activate iPhone Activation”.

This error mainly occurs to people who update via iTunes or Finder, instead of OTA updates. Many people choose this update method because they want to completely install a new major iOS version, or because they have problems with OTA updates so they have to use iTunes/Finder.

Fix “Could Not Activate iPhone Activation” error after upgrading iOS 26:

• Restart the WiFi modem/router
• Wait patiently: The reason may be that Apple servers are overloaded.

Error “Unable To Verify Update iOS 26 Is Temporarily Unavailable”

This error usually occurs because the OTA download package is corrupted during the download process.

Fix “Unable To Verify Update iOS 26 Is Temporarily Unavailable” error on iPhone:

• Step 1: Go to Settings > General > iPhone Storage.
• Step 2: Scroll down to find “iOS 26” in the list.
• Step 3: Click on it and select “Delete Update”.
• Step 4: Go back to Settings > General > Software Update and redownload the iOS 26 OTA update.
• Step 5: Wait for the download process to complete. Then click “Update Now” to start the installation.