Getting started with Windows 8.1 Notes: Before using this information and the product it supports, be sure to read the following: Safety, Warranty & Quick Start Guide Regulatory Notice “Important safety and handling information” in "Appendix". The Safety, Warranty & Quick Start Guide and the Regulatory Notice have been uploaded to the website at http://support.lenovo.com. Start screen The Start screen is where you open apps and desktop programs, see what your friends are doing, and get to your favorite websites and files. For your convenience, the Start screen is already set up with some useful tiles. Note: Your tablet features and the Start screen may be different depending on your location, language, carrier, and device model. You can customize your own Start screen at any time. Move a tile on your Start screen 1. Tap and hold the tile you want to move. 2. Drag the tile to where you want to place it. Resize a tile on your Start screen 1. Tap and hold the tile you want to resize. 2. Tap Resize. 3. Choose the size you want. Unpin tiles from the Start screen 1. Tap and hold the tile you want to unpin. 2. Tap Unpin from Start . The app is still available when you select to upin the tile, and you can re - pin it whenever you want. Create a group of tiles 1. Tap and hold the tiles you want to group together. 2. Drag them to an open space, and release the tiles when a gray bar appears. This will create a new group. 3. Tap Name group above the group, and then enter a new name. Remove a tile 1. Tap and hold the tile you want to remove. 2. Tap Uninstall. The app you select to uninstall will be no longer available, and you have to reinstall it if you want to get it back. Customize your lock screen 1. Swipe in from the right edge of the screen to open the charms bar, and then tap Settings . 2. Tap Change PC Settings > PC and devices > Lock screen. 3. Tap Browse, and then choose the picture you want. You can also select to play a slide show on your lock screen or add lock screen apps. Apps view You can find all your apps and programs in the Apps view. To see the Apps view, slide up the Start screen. Pin your favorite apps 1. Tap and hold the app you want to pin. 2. Tap Pin to Start / Pin to taskbar. The apps you pinned will appear at the end of your Start screen or desktop taskbar. Select to boot to Apps view 1. Tap from the Start screen . 2. Tap Control Panel > Taskbar and Navigation. 3. Tap Navigation tab. 4. Tap the Show the Apps view automatically when I go to Start check box. 5. Tap OK. Desktop In the desktop, you can use all kinds of apps and programs. To open the desktop, tap the desktop tile from the Start screen. Change the desktop background 1. Tap from the desktop. 2. Tap Open Control Panel > Personalization > Desktop Background . 3. Tap a picture that you want, or tap Browse to select a picture in your tablet. 4. Tap Save changes. Select to boot to desktop 1. Tap from the Start screen . 2. Tap Control Panel > Taskbar and Navigation. 3. Tap Navigation tab. 4. Tap the When I sign in or close all apps on a screen, go to the desktop instead of Start check box. 5. Tap OK. The charms The charms are a set of shortcuts to common tasks, which enable you to navigate throughout Windows 8.1. To access the charms, swipe in from the right edge of the screen. Search Search for installed apps, settings and files. Share Share web links, files, and other items via e- mail or with people from your People app. Start Switch among the Start screen, the desktop, and an open app. Devices Communicate with devices connected to your tablet. Settings Customize the settings of your tablet . Getting around your tablet Touch gestures Gestures What to do Tap. Tap and hold. Zoom out. Zoom in. Slide. Swipe in from the edge. Rotate. Getting around your tablet You can get around your tablet with a few actions. Actions What to do Show commands for an app Swipe in from the top or bottom edge of the screen. Switch to your last app Swipe in from the left edge of the screen. See a list of recent apps Swipe in from the left edge, and with your finger still on the screen, move it back toward the left edge. Close an app Zoom Select an item Drag the app from the top edge of the screen to the bottom of the screen. Touch the screen with two fingers, and then move two fingers farther apart to zoom in or closer together to zoom out. Swipe down or across the item, or tap and hold to select it. Using two apps side by side You can have two apps on a screen at a time.. 1. Tap an app you want to use to open it. 2. Drag the app down from the top edge of the screen until an opening appears behind the app, and then drag the app to the left or the right side. 3. Tap the the other side that is idle. 4. Tap another app you want to use from the Start screen. You can drag the divider between the apps to resize the apps. Getting online You need to set up a wireless network before connecting to the Internet. Connecting to a WLAN network 1. Swipe in from the right edge of the screen, and then tap Settings . 2. Tap the network icon . 3. Tap the network you want to connect to. 4. Enter the password if needed. 5. Tap Connect. Setting up a VPN network VPNs used within organizations allow you to communicate private information securely over a non- private network. You may need to configure a VPN, for example, to access your work email. Ask the network’s administrator for the settings necessary to configure a VPN for your network. When one or more VPN settings are defined you can: Swipe in from the right edge of the screen, and then tap Settings .. Tap Change PC settings > Network > Add a VPN connection . Select the VPN provider name, input the connection name, service name, user name, and password, and then tap Save to connect to the VPN network. Tap the VPN connection name to edit or remove the VPN. Getting online You need to connect to a wireless network before connecting to the Internet. Connecting to a WLAN network Connecting to a mobile network Setting up a VPN network You can also share your mobile network with others. Set up a hotspot Connecting to a WLAN network 1. Swipe in from the right edge of the screen, and then tap Settings . 2. Tap the network icon . 3. Tap the network you want to connect to. 4. Enter the password if needed. 5. Tap Connect. Connecting to a mobile network You need a valid SIM card with a data service. If you don't have a SIM card, contact your carrier 1. Swipe in from the right edge of the screen, and then tap Settings . 2. Tap the network icon . 3. Tap Network . 4. Tap the name of your mobile network. 5. Cofigure the settings if needed, and then tap Connect. 6. Enter the access point name (APN) , user name, password, and other information if needed. 7. Tap Next. NOTE: If you have trouble connecting to the Internet, contact your mobile operator. Setting up a VPN network VPNs used within organizations allow you to communicate private information securely over a non- private network. You may need to configure a VPN, for example, to access your work email. Ask the network’s administrator for the settings necessary to configure a VPN for your network. When one or more VPN settings are defined you can: Swipe in from the right edge of the screen, and then tap Settings . Tap Change PC settings > Network > Add a VPN connection . Select the VPN provider name, input the connection name, service name, user name, and password, and then tap Save to connect to the VPN network. Tap the VPN connection name to edit or remove the VPN. Sharing your Internet connection You might be able to share your mobile broadband Internet connection with other people by creating a mobile hotspot. Swipe in from the right edge of the screen, and then tap Settings . Tap Change PC settings > Network . Tap the mobile network connection you want to share. Tap the Share this connection slider to turn it on. Signing in with a Microsoft account A Microsoft account is an email address and password that you use to sign in to Windows. It's free and easy to set up, and you can do so with any email address you choose, or get a new email address. Connect to an existing Microsoft account Follow these steps: Enter the email address and password you use to sign in. Tap Next, and follow the on- screen instructions. Creating a new account You can use any email address you want to sign up for a new Microsoft account. Follow these steps: Enter the email address you want to use, and then tap Create a new account . Follow the on- screen instructions to fill out your personal and security info, and you're all set. What you can do with a Microsoft account Getting apps from the Windows Store Bringing people together Synchronizing your settings Getting free storage in the cloud Browsing the web You can surf the Internet if your device has been connected to a wireless network. To browse the web, tap the Internet Explorer tile on the Start screen. Visiting websites You can use the Internet Explorer to visit websites. Surf Enter a URL in the address bar to go to straight to a site. Or, tap the address bar to see sites you visit often (these are your frequent sites). Search Enter a term in the address bar and tap to search the web. Get suggestions Enter some key words in the address bar to get website, app, and search suggestions as you type. Just tap the suggestion you'd like to visit the address. Open a new tab Tap the New tab button > , enter a URL or search term, or select one of your frequent or favorite sites. Close a webpage > Tap to close a webpage tab. Saving your favorite websites You can save the sites you like and want to visit often as favorites. 1. Go to a website you want to add. 2. Swipe up from the bottom edge of the screen. 3. Tap the Favorites button 4. Tap to show the favorites bar. . 5. Tap Add . Pinning a site to the Start screen After pining a site to the Start screen, you can get quick acess to the site. 1. Go to a website you want to pin. 2. Swipe up from the bottom edge of the screen. 3. Tap the Favorites button 4. Tap the button. 5. Tap Pin to start. to show the favorites bar. Email You can receive and send emails if your device has been connected to a wireless network. To access the Email app, go to the Start screen, and tap the Mail tile. Adding an Email account 1. On the Start screen, tap the Mail tile. 2. Swipe in from the right edge of the screen, and then tap Settings . 3. Tap Accounts > Add an account , and then tap the type of account you'd like to add. 4. Enter your email address and password for the account. 5. Tap Connect. Using Email After setting up an email account you can use the Mail app to send and receive emails. Getting started with OneDrive OneDrive is free online storage that comes with your Microsoft account. You can easily save your files to OneDrive and get them from your tablet. Adding your files to OneDrive 1. On the Start screen, tap the OneDrive tile to open the OneDrive app. 2. Tap folders to browse to the location on OneDrive where you want to add the files. 3. Swipe in from the top or bottom edge of the screen. 4. Tap Add files . 5. Browse to the files you want to upload, and then tap to select them. 6. Tap Copy to OneDrive. Saving to OneDrive automatically 1. Swipe in from the right edge of the screen. 2. Tap Settings > Change PC settings . 3. Do the following configurations. For documents, tap OneDrive , and then turn on Save documents to OneDrive by default. For photos, tap Camera roll, and then choose Upload photos at good quality, or for higher resolution copies, choose Upload photos at best quality. Getting your files from OneDrive When your files are in OneDrive, you can get them from any device. Tap the OneDrive tile on your Start screen. Go to the OneDrive website: https://onedrive.live.com/. Getting and using apps Besides the apps in Apps view, you can find even more apps in the Windows Store. Installing apps 1. Tap Store on the Start screen. Note: You need to be connected to the Internet and you’ll need to sign in with a Microsoft account. 2. Find an app you want, tap Buy or Try (free trial) if it’s a paid app, or Install if it’s free. Using your apps Tap the app you want to use on the Start screen. To get the app commands,swipe down from the top edge of the screen or swipe up from the bottom edge of the screen. To get the charms of the app, swipe in from the right edge of the screen. To close the app, drag it from the top of the screen to the very bottom. Syncing apps between PCs After you’ve installed apps from the Windows Store, when you sign in to another Windows 8.1 PC using your Microsoft account, your apps are automatically synced on the new PC you're using—so it's easier for you to pick up right where you left off. Automatic syncing of apps and app data is turned on by default, but you change these settings at any time. Configuring app sync settings 1. Swipe in from the right side of the Start screen. 2. Tap Settings > Change PC settings > OneDrive > Sync settings . 3. Choose whether or not you want to sync Apps and App data under App settings . Appendix Important safety and handling information To avoid personal injury, property damage, or accidental damage to the product, read all of the information in this section before using the product. For additional tips to help you operate your device safely, go to: http://www.lenovo.com/safety. Handle your device with care Do not drop, bend, or puncture your device; do not insert foreign objects into or place heavy objects on your device. Sensitive components inside might become damaged. Your device screen is made of glass. The glass might break if the device is dropped on a hard surface, is the subject of a high impact, or is crushed by a heavy object. If the glass chips or cracks, do not touch the broken glass or attempt to remove it from the device. Stop using the device immediately and contact Lenovo technical support for repair, replacement, or disposal information. When using your device, keep it away from hot or high - voltage environments, such as electric appliances, electric heating equipment, or electric cooking equipment. Use your device only in the temperature range of 0°C (32°F)—40°C (104°F)(storage - 20°C ( - 4°F)—60 °C (140°F)) to avoid damage. Do not disassemble or modify your device Your device is a sealed unit. There are no end- user serviceable parts inside. All internal repairs must be done by a Lenovoauthorized repair facility or a Lenovo- authorized technician. Attempting to open or modify your device will void the warranty. Built -in rechargeable battery notice DANGER: Do not attempt to replace the internal rechargeable lithium ion battery. Contact Lenovo Support for factory replacement. Plastic bag notice DANGER: Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of suffocation. Adapter information Prevent your device and ac adapter from getting wet. Do not immerse your device in water or leave your device in a location where it can get saturated with water or other liquids. Use approved charging methods only. You can use any of the following charging methods to safely recharge the internal battery of your device: Charging method ac adapter Display on Supported, but the battery will charge slowly. Display off Supported USB connection between the dc- in connector on the device and a USB connector on a personal Supported, but will compensate computer or other device that comply with the USB power consumption and the battery 2.0 standards. Users have to use the connection to will charge more slowly than usual. Supported, but the battery will charge slowly. USB interfaces with USB 2.0 version or higher. Notes: Display on: Device on Display off: Device off or in screen lock mode Charging devices might become warm during normal use. Ensure that you have adequate ventilation around the charging device. Unplug the charging device if any of the following occurs: The charging device has been exposed to rain, liquid, or excessive moisture. The charging device shows signs of physical damage. You want to clean the charging device. Warning: Lenovo is not responsible for the performance or safety of products not manufactured or approved by Lenovo. Use only approved Lenovo ac adapters and batteries. Prevent hearing damage Your device has a headphone connector. Always use the headphone connector for headphones (also called a headset) or earphones. CAUTION: Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the equalizer to maximum increases the earphone and headphone output voltage and the sound pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level. Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the output of the headphone or earphone connectors do not comply with specifications of EN 50332- 2. The headphone output connector of your device complies with EN 50332- 2 Sub clause 7. This specification limits the device's maximum wide band true RMS output voltage to 150 mV. To help protect against hearing loss, ensure that the headphones or earphones you use also comply with EN 50332- 2 (Clause 7 limits) for a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332- 2 can be dangerous due to excessive sound pressure levels. If your device came with headphones or earphones in the package, as a set, the combination of the headphones or earphones and the device already complies with the specifications of EN 50332- 1. If different headphones or earphones are used, ensure that they comply with EN 50332- 1 (Clause 6.5 Limitation Values). Using headphones that do not comply with EN 50332- 1 can be dangerous due to excessive sound pressure levels. Sound pressure warning statement For the device that is tested in accordance with EN 60950- 1: 2006+A11:2009:+A1:2010+A12:2011, it is mandatory to perform audio tests for EN50332. This device has been tested to comply with the Sound Pressure Level requirement laid down in the applicable EN 50332- 1 and/or EN 50332- 2 standards. Permanent hearing loss may occur if earphones or headphones are used at high volume for prolonged periods of time. Warning statement To prevent possible hearing damage, do not listen at high volume levels for a long period of time. Take care when using your device in a motor vehicle or on a bicycle Always prioritize your safety and the safety of others. Follow the law. Local laws and regulations might govern how you can use mobile electronic devices, such as your device, while you drive a motor vehicle or ride a bicycle. Dispose according to local laws and regulations When your device reaches the end of its useful life, do not crush, incinerate, immerse in water, or dispose of your device in any manner contrary to local laws and regulations. Some internal parts contain substances that can explode, leak, or have an adverse environmental affect if disposed of incorrectly. See “Recycling and environmental information” for additional information. Keep your device and accessories away from small children Your device contains small parts that can be a choking hazard to small children. Additionally, the glass screen can break or crack if dropped on or thrown against a hard surface. Protect your data and software Do not delete unknown files or change the name of files or directories that were not created by you; otherwise, your device software might fail to work. Be aware that accessing network resources can leave your device vulnerable to computer viruses, hackers, spyware, and other malicious activities that might damage your device, software, or data. It is your responsibility to ensure that you have adequate protection in the form of firewalls, antivirus software, and anti- spyware software and keep such software up to date. Keep electrical appliances away from your device, such as an electric fan, a radio, high - powered speakers, an air conditioner, and a microwave oven. The strong magnetic fields generated by electrical appliances can damage the screen and the data on the device. Be aware of heat generated by your device When your device is turned on or the battery is charging, some parts might become hot. The temperature that they reach depends on the amount of system activity and the battery charge level. Extended contact with your body, even through clothing, could cause discomfort or even a skin burn. Avoid keeping your hands, your lap, or any other part of your body in contact with a hot section of the device for any extended time. Polyvinyl Chloride (PVC) cable and cord notice WARNING: Handling the cord on this product or cords associated with accessories sold with this product will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. Electronic emission notices Federal Communications Commission (FCC) Declaration of Conformity This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult an authorized dealer or service representative for help. Lenovo is not responsible for any radio or television interference caused by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void the user’s authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Building One Morrisville, NC 27560 Telephone: 1- 919- 294- 5900 FCC Caution The antenna(s) used for this transmitter must not be co- located or operating in conjunction with any other antenna or transmitter. Industry Canada Class B emission compliance statement This Class B digital apparatus complies with Canadian ICES - 003. Cet appareil numérique de la classe B est conforme à la norme NMB- 003 du Canada. IC Caution This device complies with Industry Canada license- exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en Industry Canada Class B Emission Compliance Statement This Class B digital apparatus complies with Canadian ICES - 003. Avis de conformité à la réglementation d’Industrie Canada Cet appareil numérique de la classe B est conforme à la norme NMB- 003 du Canada. European Union -Compliance to the Electromagnetic Compatibility Directive This product is in conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to electromagnetic compatibility. Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a nonrecommended modification of the product, including the installation of option cards from other manufacturers. This product has been tested and found to comply with the limits for Class B Information Technology Equipment according to European Standard EN 55022. The limits for Class B equipment were derived for typical residential environments to provide reasonable protection against interference with licensed communication devices. EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia German Class B compliance statement Deutschsprachiger EU Hinweis: Hinweis für Geräte der Klasse B EU - Richtlinie zur Elektromagnetischen Verträglichkeit Dieses Produkt entspricht den Schutzanforderungen der EU - Richtlinie 2004/108/EG (früher 89/336/EWG) zur Angleichung der Rechtsvorschriften über die elektromagnetische Verträglichkeit in den EU - Mitgliedsstaaten und hält die Grenzwerte der EN 55022 Klasse B ein. Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der Lenovo empfohlene Kabel angeschlossen werden. Lenovo übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung der Lenovo verändert bzw. wenn Erweiterungskomponenten von Fremdherstellern ohne Empfehlung der Lenovo gesteckt/eingebaut werden. Deutschland: Einhaltung des Gesetzes über die elektromagnetische Verträglichkeit von Betriebsmitteln Dieses Produkt entspricht dem „Gesetz über die elektromagnetische Verträglichkeit von Betriebsmitteln“ EMVG (früher „Gesetz über die elektromagnetische Verträglichkeit von Geräten“). Dies ist die Umsetzung der EU - Richtlinie 2004/108/EG (früher 89/336/EWG) in der Bundesrepublik Deutschland. Zulassungsbescheinigung laut dem Deutschen Gesetz über die elektromagnetische Verträglichkeit von Betriebsmitteln, EMVG vom 20. Juli 2007 (früher Gesetz über die elektromagnetische Verträglichkeit von Geräten), bzw. der EMV EG Richtlinie 2004/108/EC (früher 89/336/EWG), für Geräte der Klasse B. Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG - Konformitätszeichen - CE - zu führen. Verantwortlich für die Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo (Deutschland) GmbH, Gropiusplatz 10, D- 70563 Stuttgart. Informationen in Hinsicht EMVG Paragraf 4 Abs. (1) 4: Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55022 Klasse B. Korea Class B compliance statement B급 기기( 가정용 방송통신기자재) 이 기기는 가정용(B급) 전자파적합기기로서 주로 가정에서 사용하는 것을 옥적으로 하며,모든 지역에서 사용할 수 있습니다 Japanese VCCI Class B statement この装置は、クラスB情報技術装置です。この装置は、家庭環境で使用することを目的としていますが、この装置がラジオやテレビ ジョン受信機に近接して使用されると、受信障害を引き起こすことがあります。 取扱説明書に従って正しい取り扱いをして下さい。 VCCI - B Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase. 日本の定格電流が 20A/相 以下の機器に対する高調波電流規制 高調波電流規格 JIS C 61000－3－2 適合品 Environmental, recycling, and disposal information General recycling statement Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in recycling their IT products. For information on recycling Lenovo products, go to: http://www.lenovo.com/recycling. General recycling statement Country - specific information is available at http://www.lenovo.com/recycling. Turkish statement of compliance The Lenovo product meets the requirements of the Republic of Turkey Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (EEE). Bu Lenovo ürünü, T.C. Çevre ve Orman Bakanlığı’nın “Elektrik ve Elektronik Eşyalarda Bazı Zararlı Maddelerin Kullanımının Sınırlandırılmasına Dair Yönetmelik (EEE)” direktiflerine uygundur. EEE Yönetmeliğine Uygundur. Declarações de Reciclagem no Brasil Descarte de um Produto Lenovo Fora de Uso Equipamentos elétricos e eletrônicos não devem ser descartados em lixo comum, mas enviados à pontos de coleta, autorizados pelo fabricante do produto para que sejam encaminhados e processados por empresas especializadas no manuseio de resíduos industriais, devidamente certificadas pelos orgãos ambientais, de acordo com a legislação local. A Lenovo possui um canal específico para auxiliá - lo no descarte desses produtos. Caso você possua um produto Lenovo em situação de descarte, ligue para o nosso SAC ou encaminhe um e- mail para: firstname.lastname@example.org, informando o modelo, número de série e cidade, a fim de enviarmos as instruções para o correto descarte do seu produto Lenovo. Recycling information for Japan Recycling and disposal information for Japan is available at: http://www.lenovo.com/recycling/japan. Recycling information for India Recycling and disposal information for India is available at: http://www.lenovo.com/social_responsibility/us/en/sustainability/ptb_india.html. Battery recycling marks The battery recycling information of Taiwan Battery recycling information for the United States and Canada Battery recycling information for the European Union Troubleshooting Insufficient memory prompt appears during app installation Please free up some memory and try to install again. The touch screen does not work or is not sensitive Please long - press the power key for over 10 seconds to restart. Cannot start or system crashed Please charge the battery for half an hour and then long - press the power key for over 10 seconds to restart. Makes no sound when called or is not audible Please adjust the volume using the volume keys. Cannot access the internet via wireless network Restart the wireless router or go to Settings and restart Wlan. Cannot wakeup the tablet from sleep mode Please long - press the power key to restart.