How to install iOS 8.2 update manually on iPhone, iPad or iPod Touch

Hy gayz today i'm gonna teach you how to install firnware 8.2 on iphone or ipod through itunes...

How to install iOS 8.2 update via iTunes Those who are unable to receive the OTA update notification for iOS 8.2 or cannot install the same for some reason should try downloading the iOS 8.2 update manually, using the direct download links given above, and then use iTunes to install the same. Step 1: Connect your iOS device to computer via USB cable. Open iTunes and check if your device is recognised in iTunes. Step 2: Click on device button to the left of iTunes Store button at the top right corner in iTunes. Step 3: Click on "Check for Update" without pressing any keys. If the iOS 8.2 update is available, it will automatically download and install on your device. Step 4: Alternatively, you may get a popup message informing you that the new update is available. Click on Download and Update button. If it says iOS 8.2 is the latest version, then download the appropriate firmware file via download links provided above. Note: If the firmware file is being downloaded via Safari then ensure that auto unzip feature is disabled or use Chrome or Firefox. Note: Locate the model number at the back of your device. Step 5: Once the firmware file is downloaded, hold Option key (Mac) or Shift key (Windows) and click on "Check for Update". Important: Remember to click Check for Update button, and not the Restore iPhone button to avoid accidentally restoring your iPhone and erasing all data on it. Step 6: Wait for a popup message that reads iTunes will update your iPhone/iPad/iPod touch to iOS 8.2 and will verify with Apple. Now click on the Updatebutton. Step 7: You will now see the release notes for iOS 8.2. Click Nextand then click Agree to accept the terms and conditions. Step 8: The firmware file will now be downloaded via iTunes (which can take longer than expected as it is a huge file of size 1.5 GB to 2GB). Once the download completes, the file will be processed and extracted. Then the device is prepared for updating, and finally the update will be installed. Step 9: Do not disconnect your device until the update finishes. Wait for a few minutes until the installation completes and then reboot the device when prompted. Step 10: Your device will boot into Hello screen once it is successfully updated. Follow the on-screen instructions to set up the device for first use.