Old attribute table is not go away

[Stefan_B]

When testing different applications on an nRF52840 dongle I have the following problem:
The table of service and characteristics (1 service and 4 characteristics) of an earlier application is (partly) still available, although I have programmed a completely different example in the meantime.
I did not want to believe it at first. I deleted the BLE app (Lightblue) on my iPhone and installed another one. Again the old service with the old Characteristica appears (of course without function). But the service of the new example application (BLE-UART) doesn't work either (that worked before).
For development I used SES 4.22 with SDK 15.3. For programming I use nRF Connect Programmer (on Windows 7).
How can I delete the former attribute table?

[Vidar Berg]

The iPhone will cache the attribute table across connections to avoid having to repeat service discovery every time it connects. Try to toggle flight mode or reboot the phone. It's a trick to manually clear the cache and thus force a new service discovery on the next connection.

The Bluetooth core specification has a good summary of how to attribute caching works if you are interested in more details, see vol. 3, part g, section 2.5.2

[Stefan_B]

Thank you.

The flight mode helped once. The second time I had to restart the iPhone.

But at least now I know what it is.