"Length of data to send exceeds MTU" message on nrfConnect

[yayembedded]

When I do a DFU on my device (nrf52832 with Zephyr) using nrfConnect, the update is successful, but I get a message in the log stating "Length of data to send exceeds MTU".

I tried Googling about this but found nothing.  Is this something I should be concerned about for production?

[Simonr]

Can you upload the log file so I can see what message the device is trying to send? That would help us get a better idea of what exactly is causing it.

Best regards,

Simon

[yayembedded]

Please see below. Thanks.

---------------------------------------------------------------------------------------------------------------------------------------------------------

File Name: app_update.bin
Size: Zero KB
Firmware Upgrade Started.
State changed from none to validate
Central Manager  ready
Connecting...
Peripheral connected
Discovering services...
Services discovered: 8D53DC1D-1DB7-4CD3-868B-8A527460AA84
Discovering characteristics...
Characteristics discovered: DA2E7828-FBCE-4E01-AE9E-261174997C48
Enabling notifications...
Notifications enabled
Device ready
State changed from validate to upload
Length of data to send exceeds MTU
Scanner Off.
State changed from upload to test
State changed from test to reset
Peripheral disconnected
[Callback] centralManager(central, didDisconnectPeripheral: peripheral, error: The connection has timed out unexpectedly.)
Disconnected.
State changed from reset to confirm
Connecting...
Peripheral connected
Discovering services...
Services discovered: 8D53DC1D-1DB7-4CD3-868B-8A527460AA84
Discovering characteristics...
Characteristics discovered: DA2E7828-FBCE-4E01-AE9E-261174997C48
Enabling notifications...
Notifications enabled
Device ready
State changed from confirm to success
Success!