Manual You Can Update your IOS 11.4.1 Without PC.
1,Turn on the Device
2,Start at your Home screen
3,Tap Settings connect your iPhone with Wi-Fi
4, Your Battery will be more then 50%
5, Tap Settings > General > Software Update.
6, and then you find "download and instal 205.7MB)
7,click on "download and install"
8, you find "Terms and Conditions" click on Agree > Downloading will be start
9,downloading will be complete in few minutes
10,your device will restart
11,software will install wait few minutes and you get your device ready
Note , if icloud is ON in your device so you must have password
Latest,
iOS 11.4.1 IPSW Download Link
iphone x
iphone 8
1,Turn on the Device
2,Start at your Home screen
3,Tap Settings connect your iPhone with Wi-Fi
4, Your Battery will be more then 50%
5, Tap Settings > General > Software Update.
6, and then you find "download and instal 205.7MB)
7,click on "download and install"
8, you find "Terms and Conditions" click on Agree > Downloading will be start
9,downloading will be complete in few minutes
10,your device will restart
11,software will install wait few minutes and you get your device ready
Note , if icloud is ON in your device so you must have password

Latest,
iOS 11.4.1 IPSW Download Link
iphone x
iphone 8
- iPhone 8 Plus
- iPhone 7
- iPhone 7 Plus
- iPhone 6s
- iPhone 6
- iPhone 6s Plus
- iPhone 6 Plus
- iPhone SE
- iPhone 5s
- iPad Pro 12.9 inch 1st generation
- iPad Pro 12.9 inch 2nd generation
- iPad Pro 10.5-inch
- iPad 9.7-inch 2017 model Not a Pro
- iPad 9.7-inch 2018 model Not a Pro
- iPad Pro 9.7‑inch
- iPad Air 2
- iPad Air 1
- iPad mini 4
- iPad mini 3
- iPad mini 2
- iPod touch 6th generation 2015 model