Hello, When Apple officially released iOS16 to users in Sept and Oct this year, our custom device that uses a nRF52832 Nordic based BLE chip would no longer hold the connection for more that 90 seconds before disconnecting.
Through other forums and documentation, we realized that with iOS16, Apple changed their requested Connection Intervals and we had to modify them on our product to solve.
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[Previously Worked with iOS15 & below] Connection Interval for Product: Min 7.5ms - Max 15ms
- Does not work with iOS16.0
- Does work with iOS16.1 & iOS16.1.1
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[Had to Change for iOS16.0, 16.0.1, 16.0.2, 16.0.3] Connection Interval for Product: Min 15ms - Max 30ms
However, with the release of iOS16.1 in November, our original connection interval parameters work again. Does anyone know what Apple changed for iOS16.1 for the connection intervals? Why does iOS16.1 accept 7.5-15ms intervals when iOS16.0 doesn't? There are no changes to the connection interval requirements on the Apple Design Guidelines as of the last revision Oct26th,2022.
Would really appreciate if anyone can share more info on the BLE change logs for iOS16.1.
Thanks for the help!
