nRF Connect for iOS crashes when advertising 5+ bytes of Manufacturer Data

[Taylor]

I've been using the nRF connect app to evaluate and test custom services that I'm building on the nRF52832 (Raytech module). Everything has been working great and the manufacturer data in the advertising worked just fine until we bumped the length up to 5 bytes (not including the manufacturer's ID which is currently 0xFFFF). 4 bytes of data works just fine but 5 bytes or more makes the nRF connect app crash while scanning for devices. The app doesn't crash if I stop my advertising and will crash the minute I start advertising again so I assume it has to be something about the advertising that is crashing the app. Light Blue and other bluetooth apps work just fine so I believe my settings in my nRF project are correct. I'm using nRF SDK v13.0.0 which SoftDevice 132 on the module.

[Nguyen Hoan Hoang]

I also find that iOS version of nRFConnect on iPhone crashes all the time. Not just on manufacturer data. It crashes when it starts scanning. It is very unstable especially when there are many different devices around. It works fine at the office where there are only about 3-4 devices. Crash all the time at home when more devices around. The nRFConnect on OSX seems to be more stable in the same environment.

[bjorn-spockeli]

Hi Taylor,

we're aware some issues with the nRF Connect for iOS (we get crash reports from the app) and we're working on making it more stable.

The specific issue you're describing has been reported before and it should be fixed in the new version 1.7.5. If this is the version you're using, then let me know.

Best regards

Bjørn

[Taylor]

I've re-downloaded the app and it seems to be working now on version 1.7.5. Thanks for the update! I much prefer nRF Connect since it shows the advertising data in the list of devices without having to establish a connection to the device.

[bjorn-spockeli]

Great! Happy to hear that the issue has been resolved. I would appreciate if you could mark the answer as correct/accepted by clicking the checkmark in grey circle.

[Taylor]

Was looking for a way to close the question, couldn't find it easily. Found it now though.