Nokia T21 user guide
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Copyrights and other notices
Copyrights and other notices
The availability of some products, features, applications and services described in this guide may vary by region and require activation, sign up, network and/or internet connectivity and an appropriate service plan. For more info, contact your dealer or your service provider. This device may contain commodities, technology or software subject to export laws and regulations from the US and other countries. Diversion contrary to law is prohibited.
The contents of this document are provided "as is". Except as required by applicable law, no warranties of any kind, either express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose, are made in relation to the accuracy, reliability or contents of this document. HMD Global reserves the right to revise this document or withdraw it at any time without prior notice.
To the maximum extent permitted by applicable law, under no circumstances shall HMD Global or any of its licensors be responsible for any loss of data or income or any special, incidental, consequential or indirect damages howsoever caused.
Reproduction, transfer or distribution of part or all of the contents in this document in any form without the prior written permission of HMD Global is prohibited. HMD Global operates a policy of continuous development. HMD Global reserves the right to make changes and improvements to any of the products described in this document without prior notice.
HMD Global does not make any representations, provide a warranty, or take any responsibility for the functionality, content, or end-user support of third-party apps provided with your device. By using an app, you acknowledge that the app is provided as is.
Downloading of maps, games, music and videos and uploading of images and videos may involve transferring large amounts of data. Your service provider may charge for the data transmission. The availability of particular products, services and features may vary by region. Please check with your local dealer for further details and availability of language options.
Certain features, functionality and product specifications may be network dependent and subject to additional terms, conditions, and charges.
All specifications, features and other product information provided are subject to change without notice.
HMD Global Privacy Policy, available at http://www.nokia.com/phones/privacy, applies to your use of the device.
HMD Global Oy is the exclusive licensee of the Nokia brand for phones & tablets. Nokia is a registered trademark of Nokia Corporation.
Google and other related marks and logos are trademarks of Google LLC.
The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by HMD Global is under license.
Use the Low blue light mode
Blue light is a color in the visible light spectrum that can be seen by the human eye. Of all the colors that the human eye perceives (violet, indigo, blue, green, yellow, orange, red), blue has the shortest wavelength and thus produces a higher amount of energy.
Since blue light passes through your eye’s cornea and lens before reaching the retina, it may cause itchy and red eyes, headaches, blurred vision, and poor sleep, for example. To limit and reduce blue light, the display industry has developed solutions such as the Low blue light mode.
To switch on the Low blue light mode on your tablet, tap
OZO
OZO is a trademark of Nokia Technologies Oy.