New Phone Tips

Overview

Time Estimate

At least a few hours.

You can choose to keep Looping on the old phone and swap later. Most vendors give you more than a week to turn in your old device for credit.

Phone Transition Overview - Detailed steps below

Don't start right before a meal:

• Choose a time when Loop is stable and won't need much attention

Keep your old phone (if you can, connected to WiFi) and use it for the Loop app:

• Make sure Apple Health from the old phone is uploading to the iCloud
• If you are using the old phone with your Loop app:
  • Keep the old phone connected to WiFi when convenient
    • The Loop app maintains a 7-day database on the phone and will upload when connected
  • You want the Apple Health records created by the Loop app on the old phone to transfer via the iCloud to the new phone

Two methods to transfer your phone information (plan for 1 hour, may be faster):

1. Do direct phone-to-phone transfer
   • You will not be able to use your old or new phone during the transfer
   • Both phones need to stay close to each other and on the same WiFi network
2. Use iCloud backup from old phone to transfer information to the new phone
   • You will not be able to use your new phone during the transfer

What happens after you transfer your phone information:

• Use your new phone for everything except the Loop app and your CGM app
• You can keep using your old phone to control your pump and read your CGM until you are ready to switch to the new phone
• The new phone has the Loop records up until the time the transfer started
  • If you change a pod on the old phone after the transfer
    • Plan to deactivate your pod on the old phone and pair the next pod on the new phone
  • If you change Dexcom on the old phone after the transfer
    • On the new phone, you will need to enter the new Transmitter number (G6) or wait for G7 to automatically connect
  • Glucose, Insulin and Carbohydrate records created on the old phone, after the transfer, will be transferred to the new phone via Apple Health - but this may be slow
• Plan to be Open Loop when you decide to start using the Loop app on the new phone - the Glucose, Insulin and Carbohydrate records found on the old phone that occurred after the transfer begins will not be included in the Loop records sent to the new phone

When ready to start using the new phone to control your app:

• First turn off Bluetooth on the old phone
• Review the IOB, COB and glucose trend on the old phone - that determines how long you need to run Open Loop on the new phone
• Then build Loop on the new phone
  • Browser Build: Open TestFlight and Install Loop
    • The TestFlight records were transferred to your new phone so no need to redeem a code
  • Mac Build: Plug the new phone into your computer
    • If you recently built to your old phone, you can use the same download - otherwise, you need to Download Loop
    • Your new phone will have the same name as your old phone - might want to change the display names so the two phones are different so you don't get confused in Xcode
    • You will have to trust your computer on your new phone (and watch)
    • You will need to register your new phone (you can do this with Xcode)
    • You may need to enable Developer Mode if it is not already on
    • If you have trouble building, you should try to reboot phone, watch, quit Xcode, restart computer, delete old provisioning profiles and then ask for help

Plan to stay in Open Loop until all Glucose, Insulin and Carbohydrate Apple Health records transfer:

• This can take hours
• Loop will pick up the missing records from Apple Health for insulin and glucose (but not carbohydrates)
  • If you upload to Nightscout or Tidepool, the carbohydrates entered with the old phone should be already uploaded so your record will be complete
• If you have small IOB and COB and glucose is flat, you can probably enable closed loop on the new phone without waiting for the missing records
• If there are carbs entered on old phone that are still active, plan on a longer time open loop when you transition to the new phone

Plan Ahead

• Choose when to change from old phone to new phone
  • Stable glucose
  • No meals planned
• Plan to use Open Loop after the transfer to allow recent Health records to transfer via iCloud

Steps Required

Changing phones means you have to rebuild the Loop app onto the new phone. When you transfer information from your old phone to your new one, all your Loop information is included and the Loop icon will appear, but the app will not open until you install Loop from either TestFlight or Mac with Xcode.

The records on the new phone are from the time you started the transfer from the old phone to the new phone. The more recent records are transferred via Apple Health. You may want to adjust carbs after the transfer because those are not read by the Loop app. But if you enter them again and you are uploading to Nightscout or Tidepool - they will show up twice. Best to have COB and IOB close to zero when you start using your new phone.

Some people don't have access to their old phone. There are instructions for handling that on this page. It makes the whole process more stressful, but remember, pods continue to deliver basal rate and Medtronic pumps can be controlled on the pump itself. Use your backup plan until you can get Loop running on a new phone.

Forced iOS Update

When you change phones, Apple will force you to the latest iOS version available for your new phone.

Prepare Before Upgrade

If you are using Dexcom, record the transmitter or sensor number in case it doesn't transfer

• G6: Record the Transmitter number (found in the G6 and the Loop app)
• G7: Record the 4-digit Sensor number (pairing code) found in the G7 app under Connections, Sensor

If you still have your old phone, you can prepare before switching to the new phone.

• Be sure to record your Loop Settings (screenshots work well)

If you don't have your old phone, hopefully you have an iCloud backup and can use that to transfer your information to your new phone.

Keep the Old Phone Until the Loop app is Working on the New One

Even if you plan to turn your old phone in for a rebate, you can ask to keep the old one for a week or two. Most vendors will agree to this.

Update your old phone to the latest iOS the hardware supports - this simplifies the automatic transfer process Apple provides to move all your data and apps from your old phone to your new phone.

New Phone Checklist for Build with Browser

• The Loop app will install from TestFlight onto the most recent iOS
• If a new version is available, we recommend updating and building to the latest, see Update with Browser

New Phone Checklist for Build with Mac

• Are your Mac and Xcode versions compatible with the latest iOS version?
• If not, you need to install the correct versions on your Mac
• If you cannot do that, you should consider Build with Browser

Different Developer ID

Different Developer ID

If you need to build the Loop app with a different developer ID on the new phone, the settings and pump information will not transfer.

• The new app that you build with the new Developer ID will open and you can Onboard
• The old app will still be on the phone: find it and delete it to avoid confusion

Procure a New Phone

1. Procure the new phone and keep the old one (if possible)
   • Use the Old Phone until it is convenient to switch to the new phone
2. Transfer your information to your new phone. Your options are:
   1. Use both devices with Quick Start to transfer from the old to the new phone
   2. Use an iCloud back-up for the transfer
   3. Let the new phone vendor help you

Use the Old Phone until Ready

If you cannot keep the old phone, or it is not available, then skip ahead to the Use the New Phone.

• You can use the old phone to Loop until you are ready to switch
• Use WiFi with the old phone and use your new phone as a cellular hot-spot as needed
• Keep the CGM on the old phone
  • If using Dexcom, use the Dexcom app on the old phone
  • If using Libre, the Libre CGM is connected to the old phone

Use the New Phone

Install the Loop App

It is easier if you transfer information from the old phone to the new phone before you install and open Loop on the new phone. If this is not possible, then you will do the normal Onboarding for a new Loop app.

1. When you transfer information from your old phone to your new phone, all the Loop settings files get copied to the new device including information about the pod
   • If the timing works, you can keep the pod when you switch to using the new phone for Loop after the information transfer and before changing pods with the old phone
   • If this is not possible, you will need to start a new pod with the new phone
   • Medtronic users will have all their information transferred but will only have one phone connected to the RileyLink
2. Install Loop on the new phone (all your settings should be there)
   • Install from TestFlight
     or
   • Build using Mac
3. As soon as you install the Loop app on the new phone, go ahead and disable Closed Loop.
   • Keep Closed Loop disabled until you complete the full transfer and checkout.

Install from TestFlight

• Open TestFlight app on new phone
• Install the app on your new phone from TestFlight
• If necessary, review TestFlight for a Child

Build using Mac

Preparatory steps:

• Your new phone will have the same name as your old phone - might want to change the display names so the two phones are different so you don't get confused in Xcode
• If the new phone does not have Developer Mode enabled, wait until you plug it in to try to configure it

When building:

• Open Xcode
  • Use the same build as you used for the old phone if you built recently
  • Otherwise, do a fresh download and let the BuildSelectScript open Xcode for you
• Plug in the new phone to the computer
• You will have to trust the computer on the new phone (and watch)
• There should be a modal pop-up in Xcode asking if you want to register the new phone
• You may need to enable Developer Mode if it is not already on
• Build the app on the new phone

If you have trouble finding the new phone in Xcode or trouble building, you should try to reboot phone, watch, quit Xcode, restart computer, delete old provisioning profiles and then ask for help

Prepare to Change Phone used for the Loop App

On old phone (if available):

1. Loop app, turn off the slider for the RileyLink if using Medtronic or Eros Pods
   • Do not delete the pump; if using pods, this cannot be reversed
2. Phone Settings, Bluetooth
   • Forget the connections to the CGM (Dexcom or Libre)
   • Do not forget anything that says TWI_BOARD or NXP_BLE(this is your DASH* pod)
3. Phone Settings, Bluetooth: Disable Bluetooth

Transfer Pump

Bluetooth must be off on the old phone.

• On the new phone, examine the pump status
  • If everything transfered, your new phone should be communicating with your pump
  • If using a RileyLink device and it doesn't show as connected, try a power cycle on the device
  • If you need to start a new pod, do it now
• If necessary, delete the pump type and add it back

Transfer CGM

It is now time to transfer the CGM to the new phone.

• Dexcom CGM
• Libre CGM

Dexcom CGM

The Dexcom app might have transferred successfully, but it’s not a bad idea to install that fresh from the App Store on the new phone. Doing so may be required.

• You need your Dexcom G6 Transmitter ID or G7 4-digit pairing code (Sensor number)
• On the new phone, in Loop, delete Dexcom as your CGM so you can pair the new phone to the Dexcom app

• On the new phone, open the Dexcom app and pair to the transmitter (G5, G6 or One) or enter the four-digit code for G7

  • You can keep using your current sensor session
  • You indicate you are starting a new sensor (it’s not really new)
    • G5, G6 or ONE, enter transmitter ID
      • If you enter no code, you will be warned that calibrations are required (don't worry)
      • When the app pairs with the tranmistter, it picks up the current session, and calibrations are not required
    • G7, enter 4-digit code if asked, otherwise just wait for it to connect
  • Within 5 to 10 minutes, Dexcom app should read the current session and keep going

• Wait for Dexcom to connect

• On new phone, add the CGM to Loop

Libre CGM

Placeholder for Libre CGM instructions. Suggested procedures from the community are encouraged.

• On the new phone, in Loop, delete Libre as your CGM
• On the new phone, in Loop, add Libre as your CGM
• Wait for Libre to connect

Check out the Transfer

1. Stay in Open Loop (closed loop disabled) until you complete the full transfer and checkout.

   Check Every Setting

   • Make sure all the basal, ISF, CR, Insulin Selection and ranges are correct
   • Check Dosing Strategy selection
   • Check permissions and notification settings
   • Check Focus mode settings - make sure Loop and CGM apps have permission for all Focus modes

2. Do a manual bolus of the smallest possible amount to make sure Loop and pump are working.

3. Monitor CGM values to ensure new readings are coming in.

4. Check Glucose, Insulin and Carbohydrate records

   Apple Health History

   Your Glucose, IOB and COB may not have correct history on your new phone.

   Loop  reads from Apple Health and will restore Glucose and Insulin records if health is stored on iCloud and synchronized between old and new phone - but this can take a long time to synchronize

   The Loop app does not read Carbohydrates from Apple Health, so stay Open Loop if you have high COB from an entry on the old phone

   Be prepared to spend 3 to 6 hours in Open Loop.

5. Once you are happy with the configuration of Loop on your new phone, your glucose is being read and your COB and IOB on the new phone is valid, then you can restore Closed Loop.

Old Phone

Once you are using Loop on your new phone, you can delete the pump from the old phone.

• On the old phone, in the Loop app:
  • Delete the pump
• If using DASH pods with direct Bluetooth connection to your phone
  • Go into the old phone Settings -> Bluetooth and turn it back on
  • Forget the pod; it will show up as TWI_BOARD or NXP_BLE

You can either keep the Old Phone as a backup, reset it and turn it in for credit or give it to some deserving individual.