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M3 SM20
Series
User Manual
Version 1.0 © 2021
Korea Headquarter Seoul, Korea | sales@m3mobile.co.kr | +82-(0)2-574-0037
Europe Headquarter Germany, Frankfurt | sales_eu@m3mobile.net | +49-(0)-6190-8021829
www.m3mobile.net

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Table of Contents
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Summary of Contents for M3 Mobile SM20 Series

  • Page 1 M3 SM20 Series User Manual Version 1.0 © 2021 Korea Headquarter Seoul, Korea | sales@m3mobile.co.kr | +82-(0)2-574-0037 Europe Headquarter Germany, Frankfurt | sales_eu@m3mobile.net | +49-(0)-6190-8021829 www.m3mobile.net...
  • Page 2 SM20 Series User Manual Revision Release date of version 1.0: Sep. 2021 Initial distribution ...
  • Page 3 Thank you for purchasing M3 SM20. This device provides high performance data collection and mobile communications that meet industrial standards. This user manual enables users to know the characteristics of M3 SM20 series and how to use it. Please carefully read this manual before using the device to ensure safe and proper use, ...
  • Page 4 SM20 Series User Manual Trademarks M3 Mobile and M3 logos are registered as trademarks of M3 Mobile.  M3 SM20 is a registered trademark of M3 Mobile Co., Ltd.  Google, Android, Google Play, YouTube, and other marks are trademarks of Google LLC.
  • Page 5 SM20 Series User Manual Be careful when a headset is used.  Avoid long-term exposure to loud sounds to prevent damage to your hearing.  Loud sounds while walking or driving distract your attention and may cause traffic  accidents.
  • Page 6: Table Of Contents

    SM20 Series User Manual Table of Contents Contents Contents ..............................6 Getting Started ..........................8 Package Contents ........................ 8 1.1.1 Device and Accessories ................... 8 Battery ..........................9 1.2.1 How to use ....................... 9 1.2.2 Charging the Battery ..................... 10 Turning the Device On/Off ....................
  • Page 7 Connecting the NFC Feature ................33 Advanced Use ..........................34 OS Update .......................... 34 Key Setting Conversion ..................... 36 Battery Hot swap ....................... 38 Fast Charging ........................39 Others ............................40 SM20 series Device Specifications ..................40 Service ..........................42 5.2.1 Contacts ......................... 42...
  • Page 8: Getting Started

    SM20 Series User Manual 1 Getting Started 1.1 Package Contents 1.1.1 Device and Accessories The M3 SM20 package includes the following items: M3 SM20 Battery Quick Manual Power Supply USB Cable Cradle If one or more items above are damaged or are not included in the package, contact the store where you purchased the device.
  • Page 9: Battery

    SM20 Series User Manual 1.2 Battery 1.2.1 How to use Inserting the Battery Remove the battery cover before inserting the battery.  Insert the battery from the bottom in the right direction.   M3 SM20 uses 3.8 V 4,100mAh Li-ion Battery, 3.8V 6,150mAh Li-ion Battery.
  • Page 10: Charging The Battery

    SM20 Series User Manual If the battery is not properly removed, the battery terminal may become bent or damaged.  Before the battery is removed, close any running program. If it is not closed, an error may occur in the program.
  • Page 11 SM20 Series User Manual LED Color Description Battery is being charged. Green Battery is fully charged. If the battery is used at the temperature other than -20℃ (-4℉) to 60℃ (140℉), the  device may malfunction or break down. It takes about 4 hours to fully charge a battery that is fully discharged.
  • Page 12: Turning The Device On/Off

    SM20 Series User Manual 1.3 Turning the Device On/Off 1.3.1 Turning the Device On Press and hold Power button until the device vibrates. This will turn the device on and initial screen will display. If the battery is completely discharged, problems may occur when the device is ...
  • Page 13: Turning The Device Off

    SM20 Series User Manual 1.3.2 Turning the Device Off Press and hold the Power button for about one second to display the following pop-up screen. Select the Power off menu to turn off the power. If the device stops its operation for a long time, press and hold the Power button for ...
  • Page 14: Standby Mode

    SM20 Series User Manual 1.3.3 Standby Mode If the device is not used for a long time, M3 SM20 automatically shifts to standby mode to decrease battery consumption. To manually set the device in standby mode, lightly press the Power button.
  • Page 15: Memory Card

    SM20 Series User Manual 1.4 Memory Card 1.4.1 Inserting an External Memory Card The Micro-SD card is used as an external memory of M3 SM20. After removing the battery, insert SD memory card into the Micro-SD card slot. To insert a Micro-SD card, remove the battery cover on the back of the device and remove the battery.
  • Page 16: Sim Card

    SM20 Series User Manual 1.5 SIM Card 1.5.1 Inserting the SIM Card SIM card supports voice call and data transfer through mobile communications. The card should be the one verified by a local network supplier. To insert SIM card, remove the battery cover on the back of the device and remove the battery.
  • Page 17: Basic Use

    SM20 Series User Manual 2 Basic Use 2.1 Features Device Layout ① Receiver ⑧ Back Button ⑮ Battery Cover ② Front Camera ⑨ Home Button ⑯ Speaker ③ Sensor ⑩ Menu Button ⑰ Ear Jack Hole ④ Charging LED ⑪ Function Button ⑱...
  • Page 18: Home Screen

    SM20 Series User Manual Home Go to Home screen. Back Return to previous stage. Camera Take pictures while executing camera program. Power Power on/off screen or shut off power 2.3 Home Screen If the device is turned on, the following screen will be displayed. The screen is divided into six sections as follows: Notification Bar ⇦...
  • Page 19: Notification Bar

    SM20 Series User Manual Alarm Alarm activation status Airplane Mode Activation status of Airplane mode NO SIM SIM card is not connected 2.3.2 Notification Bar The Notification Bar displays device notifications. Icon Icon Name Description More There are more notifications.
  • Page 20: Home Screen

    SM20 Series User Manual 2.3.3 Home Screen On the Home Screen, there are shortcut icons of main programs. A shortcut icon can be added or deleted. Icon Icon Name Description Find what you need, explore your interests, and get a feed of Google stories and updates on topics that matter to you.
  • Page 21: Dock Bar

    SM20 Series User Manual Automatically organized and searchable by the people, Google Photos places, and things in them, your photos and memories are always easy to find and share. Get your music, movies, TV, books, magazines, apps, and Google Play games all in one place.
  • Page 22: Device Reset

    SM20 Series User Manual 2.5 Device Reset 2.5.1 Soft Reset (1) Press and hold Power button to display power management menu. Select “Restart” menu. 2.5.2 Soft Reset (2) Long Press Power button more than 30sec. The program being executed will end, and the data or file being used will also be deleted.
  • Page 23 SM20 Series User Manual Check if Erase internal SD card is checked.  Reset device.  Erase everything  According to options, documents in internal SD card or Micro-SD card may be deleted.  As such, please check the options. All settings will be reset.
  • Page 24 SM20 Series User Manual Factory Reset Protection (FRP) Feature What is Device Protection, or Factory Reset Protection (FRP)?  Android devices provide built-in security features you can use to protect your device and information, including screen locks and data encryption. Data protection, or Factory Reset Protection (FRP), is a security feature on Android devices with Lollipop 5.1 or higher.
  • Page 25: Connecting With A Pc

    SM20 Series User Manual If you know your Google username but can't remember the password, you can reset your password on the device, or at www.google.com. It can take up to 24 hours for a new password to sync with all registered devices. After 24 hours, you can try to log-in your phone with the new password.
  • Page 26: Using The Application Screen

    SM20 Series User Manual Charge this device – This mode is only for charging a device. Data cannot be sent.  File Transfer – Send files to another device.  PTP – Send photos or files.  MIDI – Use as Musical Instruments App.
  • Page 27: Wi-Fi

    SM20 Series User Manual Before making a call or transferring data through network, make sure that the  phone function is available. 3.2 Wi-Fi 3.2.1 Setting the Wi-Fi Feature Activating the Wi-Fi feature Swipe the bottom  Click Settings and set the WLAN menu to ON/OFF to activate or deactivate the Wi-Fi feature.
  • Page 28: Scanner

    Web site. (Homepage: http://www.m3mobile.net). 3.3.1 How to Use Scanner M3 Mobile provides the program( ) needed to use a scanner by default. It is the keyboard wedge program that sends barcode data.
  • Page 29: Using The Scanner

    SM20 Series User Manual The ScanEmul( ) program can be used regardless of 1D/2D scanner.  In case of 2D scanner, it cannot be simultaneously used with a camera. 3.3.2 Using the Scanner Place the device toward a targeted barcode and press Scan button.
  • Page 30: Bluetooth

    SM20 Series User Manual Do not look at the laser beam directly.  (CLASS 2 LASER PRODUCT 1.0 mW, MAX OUTPUT: 650 nm)  If the device is used for purposes other than that described in this manual, a ...
  • Page 31: Connecting Using Bluetooth

    SM20 Series User Manual 3.4.2 Connecting Using Bluetooth List of devices available to connect to is displayed If the “Bluetooth pairing request” screen is displayed, enter PIN code of the Bluetooth device to complete access to the device. Guide on distance between the device and user The device is tested in general conditions wherein the device is 0.5 cm apart...
  • Page 32: Nfc

    SM20 Series User Manual It is recommended to refrain from using a metal belt clip, case, or accessory.  Do not wear an accessory keeping 0.5 cm or shorter from the back part of the  device or one that does not meet the radiation safety and protection standards of Ministry of Science, ICT and Future Planning.
  • Page 33: Connecting The Nfc Feature

    SM20 Series User Manual 3.5.2 Connecting the NFC Feature Connecting with the NFC Device Open Web page or screen of a video, photo, or contact.  Place back part of the NFC device toward back part of M3 SM20. ...
  • Page 34: Advanced Use

    2. Place M3 SM20 near the device. The device displays that connection is successfully performed. 4 Advanced Use 4.1 OS Update The M3 Mobile distributes new OS to improve the quality and performance of a product. To check OS version of the device, Swipe the bottom  Click Settings  About Phone...
  • Page 35 SM20 Series User Manual The latest OS is described on the online support page of M3 Mobile. The OS of M3 SM20 can be updated through two methods. Use Micro-SD card  Connect the device via Ethernet cradle  For detailed information on OS update, please refer to the “OS” item of the M3 FAQ (FAQ...
  • Page 36: Key Setting Conversion

    SM20 Series User Manual 4.2 Key Setting Conversion M3 SM20 allows a user to change and modify key settings for user convenience. Swipe the bottom  Click KeyTool application. Keys can be set as follows: SM20 KEYTOOL application KeyTool...
  • Page 37 SM20 Series User Manual The setting of the device’s physical buttons, except for Power button, can be changed.
  • Page 38: Battery Hot Swap

    SM20 Series User Manual 4.3 Battery Hot swap Sometimes people want to swap the battery without rebooting a device. Because, 1) Not saved application data is erased when device is rebooted. 2) Rebooting Time is too long. Battery Hot swap function prevents this situation.
  • Page 39: Fast Charging

    By using a PCM(Protection Circuit Module) in each cell, more current is used, which improves charging times and eliminates risk of battery explosion due to overcurrent. So, you can experience faster charging time than before. Caution when Charging  While charging, must use 5V/5A power adapter. Must use SM20 series compatible accessories.
  • Page 40: Others

    Built-in speaker and microphone Performance Characteristics Qualcomm® Snapdragon™ 662 Octa core processor 2.0Ghz With Adreno 610 GPU Android 11(Up to Android 13) with M3 Mobile’s StartUp for control over GMS and other services; will support future Android releases. Memory DDR4 4GB/64GB UFS Flash All models ship with rechargeable Li-Ion, 3.8V, 4,100mAh smart battery, hot swap support with...
  • Page 41 Directive 2011/65/EU, Directive(EU)2015/863 Warranty Subject to the terms of M3Mobile’s hardware warranty statement, the SM20 series are warranted against defects in workmanship and materials for a period of 1 (one) year from the date of shipment. For complete warranty statement.
  • Page 42: Service

    Chun-ui Techno Park 201-610, 202, Chunui-dong, Wonmi-gu, Bucheon, Gyeonggi-do, 420-857, Korea Tel: +82 32 623 0037, Fax: +82 70 4015 6323, cs@m3mobile.co.kr ITC (M3 Mobile Information & Technology Center)  http://itc.m3mobile.net, it@m3mobile.co.kr M3 Mobile GmbH  M3 Mobile GmbH, Schulstr. 49, 65795 Hattersheim, Germany Tel: +49 6190/8021828, sales@m3mobile.co.kr...

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