Can’t send courses to 1030: not compatible?!?

I had this before. I don't remember for sure but I think the issue was that BT or BLE was not connected. The Edge makes two connections with the phone. It normally setup both during the paring process and you don't normally have to thing about it. If you look in your iPhone Bluetooth settings you should see both connections. For me one is called "Edge 1030" and the other "BT_Edge 1030". Hope this helps.

Another option I just thought about - could it be that you already reached the 100 courses limit of the Edge. You cannot load more that this. I don't quite recall what happen when you do, I think it just does not show the extra courses without an error message but this was a long time ago.

Any clues?

Same here, I have a case open with Garmin support but did not hear from them regarding a solution...

Same trouble here too, it had worked since December and suddenly stopped working with one of the latest updates (GC app or firmware...).
It's going to make me crazy, the only way I found is to start transfert from the website. It finally be transferred after some minutes if the 1030 is connected on a Wifi.

FYI I just called the Garmin support (France), the guy told me that it should be fixed with -one of- the next GC App updates ..

Note to developers : same situation with latest update (done this morning): GC version 4.18.1.35

Diagnostic logs:
DEVICE
REGISTERED
deviceId: Xxxxxxxx,
activeInd: 1,
displayName: Edge 1030,
versionString: (null),
segmentcapable: NO,
vivohubConfigurable: NO,
lastconnectedTimeStamp: 2019-05-10 05:51:33 +0000,
lastSoftwareUpdateCheckTimeStamp: 2019-05-10 05:51:36 +0000,
syncErrorOrNil: (null),
weatherSetting: YES,
weatherAlertsSetting: NO,
autoUploadSetting: YES,
liveTrackAutoStartSetting: NO,
hasBeenRegisteredWithGC: YES,
audioPromptsSettings.announceLapsEnabled: NO,
audioPromptsSettings.announceHeartRateEnabled: NO,
audioPromptsSettings.announcePaceSpeedEnabled: NO,
isPreferredActivityTracker: NO

PRODUCT DATA
floorsClimbedGoalSupport: NO
isBloodPressureMonitor: NO
primary: YES
isHandednessCapable: NO
productDisplayName: Edge 1030
bluetoothClassicDevice: YES
VideoPageURL: No Data
embeddedVideoURL: No Data
supportsCustomIntensityMinutes: NO
supportsSleep: NO
excludeCountries: No Data
isBestInClassCapable: NO
product SKU: No Data
applicationKey: edge1030
wifi: NO
minSoftwareVersion: 500
hasSecondaryUsers: NO
supportsWeatherDeviceSetting: YES
isThirdPartyDevice: NO
hasOpticalHeartRate: NO
intensityMinutesGoalSupport: NO
categories: (Course à p./cyclisme,)
includeCountries: No Data
supportsHeartRateZones: YES
moderateIntensityMinutesGoalSupport: NO
partNumber: 006-B2713-00
imageUrl: https://static.garmincdn.com/com.gar.../edge-1030.png
isPrimaryUser: NO
fullProductDisplayName: Edge 1030
wasp: NO
hybrid: NO
supportsCustomStrideLength: NO
productNumber: 2713
bluetoothLowEnergyDevice: YES
isPressToSyncDevice: NO

DEVICE ATTRIBUTES
["friendlyName": "Edge 1030", "downloadFileTypes": "", "configurationItems": "[0, 4, 5, 6, 10, 11, 16, 22, 23, 24, 25, 26, 27, 28, 32, 36, 37, 38, 39, 40, 50, 53, 56, 76]", "hasAnotherInterface": "true", "unitID": "XXXXXXXXX", "interfaceIdentifier": "6 bytes", "supportsGFDIMessage5050": "true", "productNumber": "2713", "maxPacketSize": "507", "productName": "Edge 1030", "bluetoothLowEnergyIdentifier": "C51FFE7D-9DBD-3C82-6639-ED67D14577D6", "softwareVersion": "730"]

I don't know what can to be fixed in the app. I can transfer courses from my Iphone with no problems. I know of others who also have no problem transferring courses. There must be something else going on with your phone and GCM.

I know but tried everything on my own before posting there... uninstalled/installed GC app, unpaired/paired again the 1030.
I facing the same trouble than the screenshot posted initially in this topic, and at this time no way to fix it, neither a begin of investigation.