[Representational Image] Apple iOS 10.1.1 released to restore health app data. Picture: A man inspects the Apple iPhone 6 Plus at an electronics store in Mumbai, July 23, 2015.Reuters

Apple has released a new update within a week of rolling out the iOS 10.1 to all eligible iPhones, iPads and iPods.

The new iOS 10.1.1 firmware is 70MB in size. Though it may sound like a minor update, it actually fixes a critical bug found in iOS 10.1. Many users noticed soon after upgrading their devices to the iOS 10.1 that information in their Health app got erased without warning.

Initial reports suggested that the health data might have been completely erased from the devices. Now, it has come to light that the data was just hidden in the background and by updating to the new iOS 10.1.1, users will be able get access to that information.

Also read: Google Pixel phone series bug alert: Users facing Bluetooth pairing issue; is there a way to fix it?

How to install latest iOS v10.1.1 update on iPhone, iPads and iPods:

Via OTA (Over-The-Air):

1. Settings >> General >> Software update

[Tip: Users who want to install the update directly on the device via OTA should, before downloading the new OS firmware, clear enough storage space in the device and also make sure the device has more than 50 percent battery life.]

Also read: Apple iOS 10.1 released; brings portrait mode, security patches and more [complete change-log]

Via iTunes

1. Back up your iPhone or iPad with either iCloud or via iTunes.

2. Launch iTunes on your Mac or PC.

3. Make sure you're on the latest version of iTunes. Go to About and then Check for Updates or visit

4. Plug in your iPhone, iPad, or iPod touch if it isn't already.

5. Click on iPhone, iPad, or iPod at the top left navigation.

6. Click on the Check for Update button in the first section that contains information about your device. Alternately, you can click restore instead if you'd like to do a clean wipe with updated software.

7. An update should be recognised, click on Download and Update in the popup menu and agree to any terms or conditions.

8. Unlock your device with your passcode if prompted in order to continue with the upgrade.