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Connecting to Networks and Devices

Connecting to Mobile Networks

Select Network Operator

1. Touch the

Home Key > Menu Key > System settings > More>Cellular networks

2. Touch

Network operators,

then touch

Search networks

to search for all available

networks

3. Touch a network in the network list to register manually. You can also touch

Choose

automatically

to select preferred network automatically.

Control Mobile Data Use

To enable or disable data access:

1. Touch the

Home Key > Menu Key > System settings > Data usage>CELLULAR

2. Switch on or off

Cellular data

to enable or disable data access over the mobile network.

To get data services when roaming:

1. Touch the

Home Key > Menu Key > System settings > More>Cellular networks

2. Check

Data roaming

IMPORTANT:

Data roaming may incur significant roaming charges.

Use 2G Network Only to Save Power

1. Touch the

Home Key > Menu Key > System settings > More>Cellular

networks>Preferred network type

2. Select

2G only

to save battery power.

Set Access Point Names

To connect to the Internet you can use the default Access Point Names (APN). And if you want to

Содержание Obsidian

Страница 1: ...User Manual and Safety Information ...

Страница 2: ...1 ZTE Z820 User Manual and Safety information ...

Страница 3: ... this guide without prior notice The Bluetooth trademark and logos are owned by the Bluetooth SIG Inc and any use of such trademarks by ZTE Corporation is under license Other trademarks and trade names are the property of their respective owners Manufactured under license from Dolby Laboratories Dolby and the double D symbol are trademarks of Dolby Laboratories We offer self service for our smart ...

Страница 4: ...ff 13 Locking Unlocking the Screen and Keys 13 Using the Touch Screen 13 Getting to Know the Home Screen 14 Personalizing 15 Changing the System Language 15 Setting the Date and Time 15 Changing Ringtone and Notification Sound 15 Turning On Off Touch Sounds 15 Adjusting Volumes 15 Switching to Silent Mode 16 Applying New Wallpapers 16 Changing Screen Brightness 16 Protecting Your Phone With Screen...

Страница 5: ...Your Computer via USB 28 Sharing Your Mobile Data Connection 29 Connecting to Virtual Private Networks 31 Phone Calls 32 Placing and Ending Calls 32 Answering or Rejecting Calls 32 Working With the Call Log 33 Calling Your Contacts 34 Checking Voicemail 34 Using Options During a Call 34 Managing Multi party Calls 35 Adjusting Your Call Settings 36 Contacts 37 Checking Contact Details 37 Adding a N...

Страница 6: ... Settings 44 Messaging 45 Opening the Messaging Screen 45 Sending a Text Message 45 Sending a Multimedia Message 45 Replying to a Message 46 Forwarding a Message 46 Deleting Messages or Threads 46 Changing Messaging Settings 47 Calendar 48 Viewing Your Calendars and Events 48 Creating an Event 49 Changing Calendar Settings 49 Camera 49 Capturing a Photo 50 Recording a Video 50 Customizing Camcorde...

Страница 7: ...55 Wireless Networks 55 Device 56 Personal 57 Accounts 58 System 59 Troubleshooting 60 For Your Safety 63 General Safety 63 Distraction 64 Product Handling 64 Electrical Safety 67 Radio Frequency Interference 67 Explosive Environments 69 Radio Frequency RF Exposure 69 FCC Compliance 70 Hearing Aid Compatibility HAC regulations for Mobile phones 71 CTIA Requirements 72 ...

Страница 8: ...7 Getting Started Getting to Know Your Phone Proximity light sensor Indicator light Sensor Front camera Volume key Charger micro USB Interface Power key sensor Menu key Home key Back key sensor ...

Страница 9: ...8 Back camera Vice microphone Flash Speaker Headset interface Microphone ...

Страница 10: ...ne Press and hold to turn on your phone Press and hold to power off your phone Press to switch your phone to sleep mode Press to wake up your phone Touch to return to the Home Screen from any application or screen Touch to get the options for the current screen Wallpaper Manage apps System settings Long press and hold to see recently used applications Switch off your phone before installing and re...

Страница 11: ... the cut corner oriented as shown and push it into the card slot CAUTION To avoid damage to the phone please do not use other kinds of SIM cards and do not use a non standard micro SIM card You can get the standard micro SIM card from your service provider ...

Страница 12: ...ing the micro SDHC Card The micro SDHC card sold separately can be installed and removed while the phone is turned on Remove the microSDHC Card From Your Phone before removing it Hold the micro SDHC card with the cut corner oriented as shown and push it into the card slot ...

Страница 13: ... follow the helpful tips below to conserve your battery power Reduce the screen backlight time Lower the screen brightness Turn auto sync Mobile HotSpot Wi Fi and Bluetooth off when not in use Disable the GPS function when not in use Most applications using this function will periodically query the GPS satellites for your current location each query drains your battery NOTE micro SDHC logo is a tr...

Страница 14: ...micro SIM card is in your device and the battery is charged Press and hold the Power Key to turn on your phone To turn it off press and hold the Power Key Then touch Power off Locking Unlocking the Screen and Keys Your phone allows you to quickly lock the screen and keys put the phone to sleep mode when not in use and to turn the screen back on and unlock it when you need it To lock the screen and...

Страница 15: ...rom portrait to landscape by turning the phone sideways Getting to Know the Home Screen The home screen is the starting point for your phone s applications functions and menus You can customize your home screen by adding application icons shortcuts folders widgets and more Your home screen extends beyond the initial screen Swipe the screen left or right to display additional screens Google search ...

Страница 16: ...ur format Changing Ringtone and Notification Sound You can customize the default ringtone for incoming calls and default notification sound quickly 1 Touch the Home Key Menu Key System settings Sound notification 2 Touch Phone ringtone or Default notification sound 3 Scroll through the ringtone list and select the ringtone you want to use 4 Touch OK Turning On Off Touch Sounds 1 Touch the Home Key...

Страница 17: ...the status bar the phone is in silent mode You can set the wallpaper for the Home Screen 1 Touch the Home Key Menu Key Wallpaper 2 Select a wallpaper source from Desktop wallpapers Gallery Live Wallpapers Photos or Wallpapers and choose the image or animation you want to use as the wallpaper Some cropping may be needed for Gallery images For Desktop wallpapers touch Set wallpaper For Live wallpape...

Страница 18: ...y Menu Key System settings Security 2 Touch Screen lock 3 Touch Swipe Voice Unlock Pattern PIN or Password If you touch Pattern you re guided to create a pattern you must draw to unlock the screen The first time you do this a short tutorial about creating an unlock pattern appears Then you re prompted to draw and redraw your own pattern If you touch PIN or Password you re prompted to set a numeric...

Страница 19: ...cation Icons The status bar at the top of the home screen provides notification icons on the left Below are some of the icons you may see LTE connected No signal 2G connected Signal strength 3G connected Mobile data in use 4G connected Alarm set Flight mode Ringer off Battery partially drained Vibrate mode Battery full Bluetooth on Battery charging Connected to a Wi Fi network Wired headset connec...

Страница 20: ...rom the bottom of the screen or touch the Back Key Respond or Remove a Notification In the notification panel you can respond to a notification or remove the notifications To respond to a notification just touch it To remove a notification swipe it left or right To remove all notifications touch in the below Touch and hold a notification and then touch App info to identify the application that cre...

Страница 21: ...Bluetooth Location Touch to turn on or off location services Audio profiles Touch to choose the Sound general settings of the phone such as General Silent Meeting and Outdoor Flashlight Touch to turn on or off flashlight Managing Shortcuts and Widgets Add Shortcuts and Widgets 1 Touch the Home Key 2 Touch APPS or WIDGETS to view the available shortcuts and widgets 3 Touch and hold a shortcut or wi...

Страница 22: ...nd enter a new name Add Shortcuts to a Folder 1 Touch and hold a shortcut and then drag it onto a folder icon 2 Release the shortcut and it will be added into the folder Remove Shortcuts from a Folder 1 Touch a folder to open it 2 Touch and hold the shortcut you want to remove and then drag it to the Home Screen 3 Release the shortcut and it will be removed from the folder The Home Screen includes...

Страница 23: ...text using the onscreen keyboard Some apps open it automatically In others you open it by touching where you want to type You can touch the Back Key to hide the onscreen keyboard Android Keyboard The Android Keyboard provides a layout similar to a desktop computer keyboard Turn the phone sideways and the keyboard will change from portrait to landscape The landscape keyboard is not supported in all...

Страница 24: ...ection Copy Select the text you want to manipulate Then touch Copy to copy the text to the clipboard Insert text from the clipboard Move cursor to the insertion point and then touch and hold the tab below the cursor Release the finger and touch PASTE Opening and Switching apps Open an App 1 Touch the Home Key 2 Slide left or right on the screen and touches an app to open it Switch between Recently...

Страница 25: ...obile Data Use To enable or disable data access 1 Touch the Home Key Menu Key System settings Data usage CELLULAR 2 Switch on or off Cellular data to enable or disable data access over the mobile network To get data services when roaming 1 Touch the Home Key Menu Key System settings More Cellular networks 2 Check Data roaming IMPORTANT Data roaming may incur significant roaming charges Use 2G Netw...

Страница 26: ...he Wi Fi router and your surroundings Turn Wi Fi On and Connect to a Wi Fi Network 1 Touch the Home Key Menu Key System settings Wi Fi 2 Slide the Wi Fi switch to the ON position to turn on Wi Fi 3 Touch a network name to connect to it 4 If the network is secured enter the password and touch CONNECT NOTE Your phone automatically connects to previously used Wi Fi networks when they are in range Get...

Страница 27: ...r example if you don t want the phone to connect to it automatically or if it is a network that you no longer use 1 Touch the Home Key Menu Key System settings Wi Fi 2 Slide the Wi Fi switch to the ON position 3 Touch the connected Wi Fi network name and then touch FORGET Adjust Advanced Wi Fi Settings 1 Touch the Home Key Menu Key System settings Wi Fi 2 Touch the Menu Key Advanced to adjust the ...

Страница 28: ...N or OFF position When Bluetooth is on the icon will appear in the status bar Make Your Phone Visible phone visible to them 1 Touch the Home Key Menu Key System settings Bluetooth 2 Slide the Bluetooth switch to the ON position Change the Device Name 1 Touch the Home Key Menu Key System settings Bluetooth 2 Slide the Bluetooth switch to the ON position if Bluetooth is off 3 Touch the Menu Key Rena...

Страница 29: ...g an incoming file via Bluetooth touch ACCEPT to start receiving the data Depending on your storage setting received files are stored automatically in a dedicated folder Bluetooth for instance in the phone storage Connecting to Your Computer via USB You can connect your phone to a computer with a USB cable and transfer music pictures and other files in both directions Your phone stores these files...

Страница 30: ... Scroll down and touch Unmount SD card OK 3 You can safely remove the microSDHC card from the phone Sharing Your Mobile Data Connection You can share your phone s data capabilities through tethering or by activating the mobile hotspot feature to create a portable Wi Fi hotspot Share Your Mobile Data Connection via USB You can access the Internet on your computer via the USB tethering feature of yo...

Страница 31: ...vice locate your phone via Wi Fi and connect with it to start using the phone s mobile data NOTE To stop sharing your data connection uncheck ON to off Rename or Secure Your Wi Fi Hotspot You can change the name of your phone s Wi Fi network name SSID and secure your portable Wi Fi hotspot 1 Touch the Home Key Menu Key System settings More Mobile HotSpot Mobile HotSpot settings Configure Mobile Ho...

Страница 32: ...tings More VPN 2 Touch and fill in the information provided by your network administrator 3 Touch SAVE The VPN is added to the list on the VPN screen Connect to a VPN 1 Touch the Home Key Menu Key System settings More VPN 2 Touch the VPN that you want to connect to 3 When prompted enter any requested credentials and then touch CONNECT When you are connected the VPN connected icon appears in the St...

Страница 33: ... dial just touch it 3 Touch below the keypad to place the call TIP To make an international call touch and hold the 0 key to enter the plus symbol Next enter the country code followed by the city area code and then the phone number End a Call During a call touch on the screen Answering or Rejecting Calls When you receive a phone call the Incoming Call screen opens displaying the Caller ID or the i...

Страница 34: ...ts To open the call log touch the RECENTS tab in the Phone app Place a Call from the Call Log 1 Open the call log 2 Touch a contact for more information about the call or touch CALL BACK or REDIAL If you had dialled it NOTE You can touch View full call history to switch to each call log type you want to view Take Other Actions on a Call Log Entry 1 Touch the Home Key Call History open the call log...

Страница 35: ...ft 1 Touch the Home Key 2 Touch and hold 1 in the dialler If prompted enter your voicemail password 3 Follow the voice prompts to listen to and manage your voicemail messages NOTE To set your voicemail service touch Settings Calls Voicemail in the dialler and touch the voicemail settings you want to change if you could modify it For detailed information please contact the service provider Using Op...

Страница 36: ...er call is coming in and displays the caller ID To respond to an incoming call while you re on a call Drag over to answer the call This puts the first caller on hold and answers the second call Set Up a Conference Call With this feature you can talk to five people at the same time 1 On the dialer screen enter a number and touch 2 Once you have established the connection touch Add all and dial the ...

Страница 37: ...s Fixed Dialing Numbers 2 The following options are available Enable FDN Input the PIN2 code to enable the FDN feature Change PIN2 Change the PIN2 code for FDN access FDN list Manage the FDN list NOTE The PIN2 code is provided by your carrier Entering an incorrect PIN2 code more times than allowed can get your micro SIM card locked Contact the service provider for assistance Set TTY Mode Select a ...

Страница 38: ...to check whether the caller ID and call waiting features are available Contacts You can add contacts on your phone and synchronize them with the contacts in your Google account or other accounts that support contact syncing To see your contacts touch the Home Key From there you can touch the tabs on the top of the screen to quickly switch to the all contacts or favorite contacts Checking Contact D...

Страница 39: ...ntacts between different devices You can also quickly share your contacts using Bluetooth Email or Messaging etc 1 Touch the Home Key 2 Touch the Menu Key Import export CARD if you had inserted SIM it maybe display SIM info Import Contacts from Storage 1 Touch the Home Key 2 Touch the Menu Key Import export Phone storage 3 Touch NEXT 4 Select an account in which to save the contacts 5 Touch NEXT E...

Страница 40: ...roups you have created 3 Touch a group to view its members Set Up a New Group 1 Touch the Home Key and Groups 2 Touch to create a new group 3 Touch the account field to choose an account for the group 4 Enter a group name 5 Touch and select the contacts you wish to be the group members 6 Touch OK 7 Touch Done Delete a Group 1 Touch the Home Key and Groups 2 Touch a group and then touch Delete 3 To...

Страница 41: ...rch box at the top of the screen 3 Input the contact name you want to search for The contacts matched will be listed Editing Contacts Edit Contact Details 1 Touch the Home Key 2 Touch a contact you need to edit and then touch 3 Edit the contact Delete a Contact 1 Touch the Home Key 2 Touch a contact you want to delete and touch Delete 3 Touch OK to confirm ...

Страница 42: ...may vary You may also need to obtain some information from IT support or your system administrator When the account is successfully added it is displayed in the ACCOUNTS list Remove an Account Removing an account will delete it and all information associated with it from your phone such as emails and contacts 1 From the Home Screen touch the Menu Key System settings 2 Touch the Accounts 3 Select a...

Страница 43: ...ails Your phone can automatically check for new emails at the interval you set when setting up the account Responding to an Email You can reply to or forward a message that you receive You can also delete messages and manage them in other ways Reply to or Forward an Email 1 Open the email you want to reply to or forward from Inbox 2 Touch the icons at the bottom to reply or forward the email 3 Typ...

Страница 44: ...end the message Adding Signature to Your Emails You can set a few lines of plain text as signature for every outgoing email message from an account such as your name and contact information 1 Open the Email app 2 Touch Settings and select the account you want to add signature to 3 Touch Signature and enter the text 4 Touch OK Adding and Editing Email Accounts Add an Email Account After setting up ...

Страница 45: ...you re finished Remove an Email Account 1 Touch in the Home Screen and select Settings 2 Touch Accounts Personal POP3 and select the account which you want to remove 3 Touch Menu key Remove account select REMOVE ACCOUNT NOTE Personal POP3 is just one example Maybe your account is Personal IMAP Exchange or other types you can use the same operation to remove it Changing General Email Settings Gener...

Страница 46: ...in number Sending a Text Message 1 On the Messaging screen touch at the top 2 Add recipients by one of the following ways Touch the top line which printed with Type name or number and manually enter the recipient s numberor the contact name If the phone presents a few suggestions touch the one you want to add Select recipients from your contacts by touching Touch the Type text message field and en...

Страница 47: ... thread that has the message you want to reply to 2 Type your reply in the text box at the bottom You can touch the attach icon to add some attachments if you want to reply with an MMS 3 Touch Forwarding a Message 1 On the Messaging screen touch the thread that has the message you want to forward 2 Long press the message 3 Touch Forward in the Message options 4 Enter a recipient for the message an...

Страница 48: ...one thread you want to delete 2 If there are more threads you want to delete touch them one by one 3 Touch at the top 4 Touch DELETE Changing Messaging Settings Touch in the Home Screen and select Messaging Touch the Menu Key Settings in the Messaging screen to change Messaging settings ...

Страница 49: ...r uncheck the calendars you d like to hide Events from hidden calendars are not shown in the Calendar app Change Calendar Views You can view your calendars in different forms The app offers four views Day Week Month and Agenda To change calendar views touch the time period shown at the top left and select the view you prefer You can also change to Day view from Month view by touching any day in th...

Страница 50: ...NOTE If you have more than one calendar you can choose the one which to add the event by touching the current calendar above the Event name 3 Touch DONE at the top of the screen to save the new event Changing Calendar Settings To change Calendar settings open a Calendar view Day Week Month or Agenda Then touch the Menu Key Settings You can change General settings which apply to all accounts or oth...

Страница 51: ... on the screen to zoom in or zoom out 3 Lightly touch the shutter icon to take the picture Recording a Video 1 Touch the Home Key Camera 1 Aim the camera at the subject and make any necessary adjustment 2 Touch to start recording 3 Touch to stop recording TIP While the recording is in progress you can touch to save the frame as a separate photo setting video Shutter button Photos and videos Panora...

Страница 52: ...ocation info Select whether need to store the picture s or video s location info Restore defaults Restore the default camera settings Gallery Opening Gallery Touch in the Home Screen and select Gallery to view albums of your pictures and videos Working with Albums When you open Gallery all pictures and videos on your phone are displayed in a number of albums To view album contents Touch an album t...

Страница 53: ...Touch to rotate the picture view details or do other operations Touch the arrow in the upper left corner to return to the album NOTE All options may not be available for certain albums or pictures Retouch Your Pictures You can edit any photos you took and some other pictures in Gallery The changed picture is saved in the same album as the original one while the original is never affected 1 Touch E...

Страница 54: ...e touch the screen first 3 Select how you want to share the picture Sound Recorder Sound Recorder enables you to record voice memos and listen to them whenever you like Recording a Voice Memo 1 Touch in the Home Screen and select Sound Recorder 2 Touch to start recording You can touch to pause and to continue during the recording 3 Touch to stop recording Then select SAVE to save the memo Also you...

Страница 55: ...ator Touch in the home screen and select Calculator to use the phone s convenient built in calculator for some basic Clock Touch in the home screen and select Clock to use a series of timing tools Set a New Alarm 1 Touch in the Home Screen and select Clock 2 Touch 3 Touch a default alarm to configure it or touch at the bottom of the screen to create a new alarm 4 NOTE To enable or disable existing...

Страница 56: ...pplications Touch and hold a file to delete or share it Settings Touch in the Home Screen and select Settings The Settings app contains most of the tools for customizing and configuring your device Wireless Networks Wi Fi Turn Wi Fi on or off and configure your Wi Fi connections See Connecting to Networks and Devices Connecting to Wi Fi Bluetooth Turn Bluetooth on or off and configure your Bluetoo...

Страница 57: ...pp to choose the preferred application for sending and receiving SMS Mobile Hotspot Share Your Mobile Data Connection via USB VPN Set up and connect to virtual private networks See Connecting to Networks and Devices Connecting to Virtual Private Networks Device Display Brightness level Set the brightness of the display You can check how much data has been used during the time cycle you set set a c...

Страница 58: ...and prepare it for use with your phone Battery Check how much power remains for the battery and what has been using the battery Apps See apps installed on your phone and manage them Touch an app in the Downloaded Running or All tabs to see its information You can stop the app uninstall the app clear data and cache or move the app between the internal storage and the memory card NOTE Not all applic...

Страница 59: ... from the phone s internal storage will be erased Collect Diagnostics Collect diagnostics data for troubleshooting Accounts Add account Manage your accounts and synchronization Touch Add account to sign in to or create accounts on your phone Touch an account type to see that type of accounts you have added and adjust the accounts settings Encrypt phone Encrypt your data on the phone to protect you...

Страница 60: ...an also use network provided data Configure accessibility plug ins on your phone such as using TalkBack for low vision users Configure cloud printing service options manage print jobs and more View phone status and legal information You can also upgrade your phone from update packages that was copied to the storage card ...

Страница 61: ...after waiting a short time You are too far away from a base station for your service provider You can request a service area map from your service provider Echo or noise Poor network link quality on the part of your service provider End the call and dial again You may be switched to a better quality network link or phone line Poor local telephone line quality End the call and dial again You may be...

Страница 62: ...ns have been properly made Shortened standby time The standby time is related to your service provider system configuration The same phone used with different service providers systems will not provide exactly the same length of standby time If you are located in an area where signaling is weak temporarily power off the phone The battery is depleted In high temperature environments battery life wi...

Страница 63: ...tacts Unable to connect to the network Micro SIM card invalid Contact your service provider You are not within the network s service area Check the service area with your service provider Poor signal Move to an open space or if you are inside a building move closer to a window PIN Code blocked You have entered an incorrect PIN code three consecutive times Contact your service provider If the servi...

Страница 64: ...afety Don t make or receive handheld calls while driving Never text while driving Don t use at gas stations Keep your phone at least 15 mm away from your ear or body while making calls Your phone may produce a bright or flashing light Small parts may cause choking Don t dispose of your phone in fire Your phone can produce a loud sound To prevent possible hearing damage do not listen at high volume...

Страница 65: ...ving at all times in order to reduce the risk of an accident Using a phone while driving even with a hands free kit can cause distraction and lead to an accident You must comply with local laws and regulations restricting the use of wireless devices while driving Full attention must be given to operating machinery in order to reduce the risk of an accident You alone are responsible for how you use...

Страница 66: ...e substances for cleaning or allow them to get inside Do not expose your phone or its accessories to liquid moisture or high humidity Do not attempt to disassemble your phone or its accessories Only authorized personnel can do so Do not expose or use your phone or its accessories in a environment with or that can reach extreme temperatures minimum 5 and maximum 50 degrees Celsius Do not place your...

Страница 67: ...Store the phone safely before driving your vehicle To minimize the risk of Repetitive Strain Injury RSI when texting or playing games with your phone Use the special features which are designed to minimize the times of pressing buttons such as Message Templates and Predictive Text Take many breaks to stretch and relax This phone like any wireless phone operates using radio signals which cannot gua...

Страница 68: ...Seek professional advice when connecting a phone interface to the vehicle electrical system Do not attempt to disassemble the phone or its accessories Only qualified personnel can service or repair the phone or its accessories If your phone or its accessories has been submerged in water punctured or subjected to a severe fall do not use it until you have taken it to be checked at an authorized ser...

Страница 69: ...evice manufacturer to determine if operation of your phone may interfere with the operation of your medical device Turn off your wireless device when requested to do so in hospitals clinics or health care facilities These requests are designed to prevent possible interference with sensitive medical equipment Turn off your wireless device whenever you are instructed to do so by airport or airline s...

Страница 70: ...posure standard for wireless mobile devices employs a unit of measurement known as the Specific Absorption Rate or SAR The SAR limit set by the FCC is 1 6W kg Tests for SAR are conducted using standard operating positions accepted by the FCC with the device transmitting at its highest certified power level in all tested frequency bands Although the SAR is determined at the highest certified power ...

Страница 71: ...he device is switched on 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 Changes or modifications not expressly approved by the manufacturer could void the user s authority to opera...

Страница 72: ...e ratings are not guarantees Results will vary depending on the user s hearing device and hearing loss If your hearing device happens to be vulnerable to interference you may not be able to use a rated phone successfully Trying out the phone with your hearing device is the best way to evaluate it for your personal needs This phone has been tested and rated for use with hearing aids for some of the...

Страница 73: ...rements for Battery System Compliance to IEEE 1725 Use of an unqualified battery or charger may present a risk of fire explosion leakage or other hazard Do not short circuit a battery or allow metallic conductive objects to contact battery terminals Replace the battery only with another battery that has been qualified with the system per this standard IEEE Std 1725 Use of an unqualified battery ma...

Страница 74: ...http www ztedevice com ...

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