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It explains default-setting differences across regions and services, impacts of high-CPU/RAM content on performance, responsibilities for third-party apps and media licensing, and potential data charges with recommendations such as using Wi‑Fi for large transfers. It also warns against unofficial system modifications, notes warranty coverage limits (e.g., damaged screen protectors), and provides practical display and overheating considerations during charging.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/samsung-galaxy-a9-dual-sim-user-manual-read-me-first/647490/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/samsung-galaxy-a9-dual-sim-user-manual-read-me-first/647490.png","ImageObject",300,407,{"name":92,"@type":93},"Riley West","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-27","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What should you do before using the device?","Question",{"text":112,"@type":113},"Read the manual first to ensure safe and proper use. It also explains how descriptions rely on default settings and may vary by region, provider, model, or software version.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Does overheating during charging affect the device’s lifespan or performance?",{"text":117,"@type":113},"When charging, especially during wireless charging or fast charging, the device and charger may become hot. This does not affect the device’s lifespan or performance, according to the manual.",{"name":119,"@type":110,"acceptedAnswer":120},"What risks can come from modifying the operating system or installing software from unofficial sources?",{"text":121,"@type":113},"Modifying the device’s operating system or installing software from unofficial sources may cause malfunctions and data corruption or loss. These actions violate the Samsung licence agreement and void the warranty.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},647490,1792908792,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},1099523885074,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","USER MANUAL  \nSM-A920F  \nSM-A920F/DS  \nEnglish (EU). [11/2018. Rev.1.0 www.samsung.com](11/2018. Rev.1.0 www.samsung.com)  \nTable of Contents  \nBasics  \n4 Read me first  \n6 Device overheating situations and solutions  \n10 Device layout and functions  \n14 Battery  \n17 SIM or USIM card (nano-SIM card)  \n23 Memory card (microSD card)  \n27 Turning the device on and off  \n28 Initial setup  \n31 Samsung account  \n33 Transferring data from your previous device  \n37 Understanding the screen  \n51 Notification panel  \n53 Entering text  \nApps and features  \n56 Installing or uninstalling apps  \n58 Bixby  \n71 Bixby Vision  \n76 Bixby Home  \n80 Reminder  \n84 Phone  \n89 Contacts  \n93 Messages  \n97 Internet  \n99 Email  \n100 Camera  \n125 Gallery  \n133 Always On Display  \n135 Multi window  \n140 Samsung Pay  \n143 Samsung Pay mini  \n144 Samsung Members  \n145 Samsung Notes  \n146 Calendar  \n147 Samsung Health  \n151 Radio  \n152 Voice Recorder  \n153 My Files  \n153 Clock  \n155 Calculator  \n156 Game Launcher  \n159 SmartThings  \n164 Sharing content  \n165 Google apps  \nTable of Contents  \nSettings  \n167 Introduction  \n167 Connections  \n168 Wi-Fi  \n171 Bluetooth  \n173 Data saver  \n173 NFC and payment  \n176 Mobile Hotspot and Tethering  \n177 SIM card manager (dual SIM models)  \n178 More connection settings  \n180 Sounds and vibration  \n181 Dolby Atmos (surround sound)  \n182 Notifications  \n182 Display  \n183 Blue light filter  \n184 Changing the screen mode or adjusting the display colour  \n186 Screensaver  \n186 Wallpapers and themes  \n187 Advanced features  \n189 Dual Messenger  \n190 Device maintenance  \n194 Apps  \n194 Lock screen  \n195 Smart Lock  \n195 Biometrics and security  \n197 Face recognition  \n200 Fingerprint recognition  \n203 Samsung Pass  \n207 Secure Folder  \n211 Cloud and accounts  \n212 Backup and restore  \n212 Google  \n213 Accessibility  \n214 General management  \n215 Software update  \n216 User manual  \n216 About phone  \nAppendix  \n217 Troubleshooting  \n224 Removing the battery  \nBasics  \nRead me first  \nPlease read this manual before using the device to ensure safe and proper use.  \n• Descriptions are based on the device’s default settings.  \n• Some content may differ from your device depending on the region, service provider, model specifications, or device’s software.  \n• Content (high quality content) that requires high CPU and RAM usage will affect the overall performance of the device. Apps related to the content may not work properly depending on the device’s specifications and the environment that it is used in.  \n• Samsung is not liable for performance issues caused by apps supplied by providers other than Samsung.  \n• Samsung is not liable for performance issues or incompatibilities caused by edited registry settings or modified operating system software. Attempting to customise the operating system may cause the device or apps to work improperly.  \n• Software, sound sources, wallpapers, images, and other media provided with this device are licensed for limited use. Extracting and using these materials for commercial or other purposes is an infringement of copyright laws. Users are entirely responsible for illegal use of media.  \n• You may incur additional charges for data services, such as messaging, uploading and downloading, auto-syncing, or using location services depending on your data plan. For large data transfers, it is recommended to use the Wi-Fi feature.  \n• Default apps that come with the device are subject to updates and may no longer be supported without prior notice. If you have questions about an app provided with the device, contact a Samsung Service Centre. For user-installed apps, contact service providers.  \nBasics  \n• Modifying the device’s operating system or installing softwares from unofficial sources may result in device malfunctions and data corruption or loss. These actions are violations of your Samsung licence agreement and will void your warranty.  \n• Depending on the region or service provider, a screen protec","cbCain5k217sjjR4","https://ap.wps.com/l/cbCain5k217sjjR4","pdf",16500466,225,"English","# Basics\n## Read me first\n## Device overheating situations and solutions\n## Device layout and functions\n## Battery\n## SIM or USIM card (nano-SIM card)\n## Memory card (microSD card)\n## Turning the device on and off\n## Initial setup\n## Samsung account\n## Transferring data from your previous device\n## Understanding the screen\n# Apps and features\n## Installing or uninstalling apps\n## Bixby\n## Bixby Vision\n## Bixby Home\n## Reminder\n## Phone\n## Contacts\n## Messages\n## Internet\n## Email\n## Camera\n## Gallery\n## Always On Display\n## Multi window\n## Samsung Pay\n# Settings\n## Introduction\n## Connections\n## Wi-Fi\n## Bluetooth\n## Data saver\n## NFC and payment\n## Mobile Hotspot and Tethering\n## SIM card manager (dual SIM models)\n## Sounds and vibration\n## Dolby Atmos (surround sound)\n## Notifications\n## Display\n# Appendix\n## Troubleshooting","[{\"question\":\"What should you do before using the device?\",\"answer\":\"Read the manual first to ensure safe and proper use. It also explains how descriptions rely on default settings and may vary by region, provider, model, or software version.\"},{\"question\":\"Does overheating during charging affect the device’s lifespan or performance?\",\"answer\":\"When charging, especially during wireless charging or fast charging, the device and charger may become hot. This does not affect the device’s lifespan or performance, according to the manual.\"},{\"question\":\"What risks can come from modifying the operating system or installing software from unofficial sources?\",\"answer\":\"Modifying the device’s operating system or installing software from unofficial sources may cause malfunctions and data corruption or loss. These actions violate the Samsung licence agreement and void the warranty.\"}]","Samsung Galaxy A9 (Dual SIM) - User Manual - Read Me First | PDF",1792789032,567]