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Phone & Device Support Library

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See if your phone will work on the Sprint Network.  Check eligible phone below.
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More than likely you are seeing this because the device's ESN is not in Sprint's database or for some reason usually due to long inactivity it has been removed. If this is the case then the ESN will need to be added into the system by an agent creating a "ticket". This process can take up to 3 days to take care of depending on what information is left out etc.
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After performing a ##BRAND# the handset may appear unable to connect to the internet.    This can be identified by an exclamation point in the signal bar indicator or appear as repeated connection attempts to access the internet.
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Over the last several, days we have come across multiple complaints to a 3 rd  Party product “RoboKiller” that is meant to intercept spam calls for customers. Unfortunately, the product is setting up a condition call forward busy to an invalid number. Customers who are on the phone are reporting the caller is directed to that number which gives an error "the mailbox does not exist" or can’t be forwarded. Sprint's research has indicated that the customer must remove the application from the device and we have to clear the call forwarding settings in our tools. 
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In some rare cases, users are reporting inability to connect to Sprint LTE.  This behavior could be seen on devices with software versions BB100-3V05 or later.
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In our efforts to provide great service, we are continually updating and modifying the Sprint IT Network. As part of a device network update, the below models will no longer have the ability to reach Sprint provisioning systems for activation or roaming updates starting April 30, 2019.
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 Some users may observe their device continuously cycling between LTE and no service as observed by a signal bar with an "X" symbol.  The device will likely be unable to complete calls or access data.
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Customers in areas within the state of Mississippi and possibly surrounding counties handsets may not be able to attach to a Magic Box.  This issue is related to network availability and may affect customers with a Magic Box in use previously and/or newly deployed equipment. 
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Customers in areas within the state of Mississippi and possibly surrounding counties handsets may not be able to attach to a Magic Box.  This issue is related to network availability and may affect customers with a Magic Box in use previously and/or newly deployed equipment. 
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 Some users may observe their device continuously cycling between LTE and no service as observed by a signal bar with an "X" symbol.  The device will likely be unable to complete calls or access data.
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Some call services that were previously only available via * codes are now available via Settings > Phone.   These services include: Call Forwarding Call Waiting Show My Caller ID
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Some call services that were previously only available via * codes are now available via Settings > Phone.   These services include: Call Forwarding Call Waiting Show My Caller ID
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Some call services that were previously only available via * codes are now available via Settings > Phone.   These services include: Call Forwarding Call Waiting Show My Caller ID
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Some call services that were previously only available via * codes are now available via Settings > Phone.   These services include: Call Forwarding Call Waiting Show My Caller ID
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Some call services that were previously only available via * codes are now available via Settings > Phone.   These services include: Call Forwarding Call Waiting Show My Caller ID
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Some call services that were previously only available via * codes are now available via Settings > Phone.   These services include: Call Forwarding Call Waiting Show My Caller ID
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If changes or degradation in voice call quality after updating to iOS 12.1.1, you may need to change a Cellular Setting.   This change will only need to be made if the following conditions are met:   Have updated iPhone to software version 12.1.1 or above                 o   Confirm under   Settings > General > About > Version   Has or had Wi-Fi Calling enabled                o   Confirm under   Settings > Cellular > Wi-Fi Calling   – If the user has it turned off, but has enabled the service previously, then flipping the toggle back on will display an “Enable Wi-Fi Calling? > Enable” pop-up with no further actions required.   Enable LTE   menu is set to   Voice & Data               o   Confirm under   Settings > Cellular > Cellular Data Options > Enable LTE > Voice & Data   If you do not meet any of these conditions, continue with normal troubleshooting.
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If changes or degradation in voice call quality after updating to iOS 12.1.1, you may need to change a Cellular Setting.   This change will only need to be made if the following conditions are met:   Have updated iPhone to software version 12.1.1 or above                 o   Confirm under   Settings > General > About > Version   Has or had Wi-Fi Calling enabled                o   Confirm under   Settings > Cellular > Wi-Fi Calling   – If the user has it turned off, but has enabled the service previously, then flipping the toggle back on will display an “Enable Wi-Fi Calling? > Enable” pop-up with no further actions required.   Enable LTE   menu is set to   Voice & Data               o   Confirm under   Settings > Cellular > Cellular Data Options > Enable LTE > Voice & Data   If you do not meet any of these conditions, continue with normal troubleshooting.
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I f changes or degradation in voice call quality after updating to iOS 12.1.1, you may need to change a Cellular Setting.   This change will only need to be made if the following conditions are met:   Have updated iPhone to software version 12.1.1 or above                 o   Confirm under   Settings > General > About > Version   Has or had Wi-Fi Calling enabled                o   Confirm under   Settings > Cellular > Wi-Fi Calling   – If the user has it turned off, but has enabled the service previously, then flipping the toggle back on will display an “Enable Wi-Fi Calling? > Enable” pop-up with no further actions required.   Enable LTE   menu is set to   Voice & Data               o   Confirm under   Settings > Cellular > Cellular Data Options > Enable LTE > Voice & Data   If you do not meet any of these conditions, continue with normal troubleshooting.
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If changes or degradation in voice call quality after updating to iOS 12.1.1, you may need to change a Cellular Setting.   This change will only need to be made if the following conditions are met:   Have updated iPhone to software version 12.1.1 or above                 o   Confirm under   Settings > General > About > Version   Has or had Wi-Fi Calling enabled                o   Confirm under   Settings > Cellular > Wi-Fi Calling   – If the user has it turned off, but has enabled the service previously, then flipping the toggle back on will display an “Enable Wi-Fi Calling? > Enable” pop-up with no further actions required.   Enable LTE   menu is set to   Voice & Data               o   Confirm under   Settings > Cellular > Cellular Data Options > Enable LTE > Voice & Data   If you do not meet any of these conditions, continue with normal troubleshooting.
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