Some of these messages come from the phone or laptop rather than from DiveLogic, so their wording varies; those are described by what they say rather than quoted.
Finding and connecting
| What you see | What it means | What to do |
|---|---|---|
No computers found. and Scan to discover nearby devices. |
Nothing in range. Shearwaters stay visible only briefly after you select Bluetooth on the wrist unit. | Enable Bluetooth on the computer, then Scan Again at once. If it is awake and still absent, check it is a Shearwater. |
Bluetooth sync needs the desktop or mobile app., or “Dive computers connect over Bluetooth from the desktop or mobile app. Once a dive syncs there, it appears here on every device you sign in to.” |
A browser cannot use Bluetooth. | Download from the desktop or mobile app. See Platforms. |
| The computer cannot be found | It is no longer visible. | Wake Bluetooth on the computer and retry. If the app has run a long time, close and reopen it. |
| Bluetooth is off or unavailable | Bluetooth is off, or the app lacks permission. | Enable Bluetooth, then check the app’s Bluetooth permission in system settings. On macOS and iPhone a declined prompt leaves scans silently empty ever after. |
During a transfer
| What you see | What it means | What to do |
|---|---|---|
| A message naming the dive list and a 40-second limit | The computer stopped responding, or distance or interference degraded the link. | Move the computer beside the phone or laptop, check nothing else is holding it, and reconnect. If it stops at the same numbered part every attempt, power-cycle the computer. |
| A message naming the dive and a 120-second limit | One recording did not finish in two minutes; long dives recorded frequently carry a great deal. | Bring the devices within a metre, stop other Bluetooth activity, and retry that dive. Others usually download normally. |
| The transfer stops and the computer has stopped sending | It slept or moved out of range; the app waits ten seconds, then gives up. | Wake it, select Reconnect, and start again. A part-downloaded dive is discarded. |
| The connection drops mid-transfer | The computer disconnected, or the phone or laptop tore the link down. | Reconnect and retry. If it recurs every attempt, check the battery: a Shearwater low on charge drops Bluetooth first. |
A message beginning send failed: |
The connection is present but not usable. | Disconnect, reconnect, and retry. |
Afterwards
| What you see | What it means | What to do |
|---|---|---|
| Disconnecting times out after five seconds | The computer had already gone. Dives already downloaded are safe. | Nothing; the next scan starts clean. |
No dives found (offline). |
The connection dropped and nothing from this computer is held locally. | Select Reconnect. Without (offline), the computer genuinely holds no dives. |
Dive log not downloaded. |
You opened a dive you never downloaded, with the computer not connected. | Connect the computer and open the dive again. |
This computer still holds 12 dives. Deleting it would delete them too. |
A refusal, not a failure: the computer has dives in your account. The count varies. | Delete dives & forget removes both permanently. To keep the dives, cancel. |
Keep the computer within a metre during a transfer, and make sure no other application is holding it: only one thing can talk to a Shearwater at a time. Shearwater’s own app is the usual culprit, so close it before you scan.