A ReSound rep suggested I follow an iOS 13 recipe for fixing ReSound BT connectivity issues. I haven’t gone more than a few days but so far the fix looks promising.
It’s basically what a lot of us have been doing to remedy MFi BT connectivity. Unpair the HA’s as MFi devices, reboot the iPhone, repair the aids as MFi devices, reinstall the app, etc. There can be various variations as to exactly how you configure the HA’s as MFi hearing devices, e.g., Chuck Kemp’s Oticon recipe: Oticon MORE firmware 1.4.0 - BT issues with iOS 16 - #407 by cvkemp. @cvkemp. I didn’t find this sort of routine very helpful with my ReSound Omnia complete disconnection problem either for iOS 16.3 or 16.4. Then I noticed a critical difference in the ReSound recipe vs. what I was doing. After the unpairing and before rebooting, ReSound instructs the user to first TURN OFF BT before rebooting, then turn it back on, obviously, after rebooting to repair the HA’s as MFi devices. And only then uninstall and reinstall the Smart 3D smartphone app after the reboot and the MFI devices repairing.
So, I’ve only gone about two days without an Omnia turning off its BT broadcasting. I have had a couple of “iPhone separation” incidents, but force-killing and relaunching the Smart 3D has re-established the 3D app BT connection. Just now, I had such an incident, and although the HA appeared disconnected in the 3D app, it was still broadcasting BT as judged by a BT scanner, and force-killing and relaunching the 3D app promptly restored BT connectivity to the app.
My ignorant theory as to why ReSound suggests turning off BT before rebooting is perhaps otherwise the existing BT stack is cached during a phone reboot whereas with BT off, it’s more of a clean boot and a fresh BT stack, which gives BT connectivity a fresh start. Perhaps someone like @ssa could comment on why ReSound recommends turning BT off before rebooting.
Another Internet article on fixing iPhone BT connectivity problems also recommends turning BT off, then rebooting. But the article claims BT should be turned off in Settings, Bluetooth. The claim is that using the Control Center toggle to uncheck BT being on doesn’t really completely turn BT off. So the toggle in Settings, Bluetooth is best
ReSound Series: App Tips and Tricks
iOS 13 Connectivity
If you updated your Apple® device to iOS 13, you may experience issues with connectivity to your
hearing aids. The best way to resolve this is to re-pair your hearing aids to your Apple device and
reinstall your ReSound app.
- On your device, tap Settings > Accessibility > Hearing Devices > Your name/model of
hearing aids > Forget this device. Confirm when prompted by tapping Forget again.
- Open your hearing aid battery doors. If you have rechargeable hearing aids, place them in
the charger.
- Turn Bluetooth off on your mobile device, by tapping Settings > Bluetooth and switch the*
green toggle to grey.
- Reboot your device by turning it off and on again.
- Once rebooted, turn Bluetooth back on by tapping Settings > Bluetooth and switch the grey
toggle back to green.
- Then, tap on Settings > Accessibility > Hearing Devices and then turn your hearing aids
back on by closing the battery doors or remove them from your hearing aid charger.
- Once your device has found your hearing aids, tap on your name/model of hearing aids.
When prompted, tap Accept to all pairing requests.
- Next, uninstall and reinstall your ReSound app on your phone.
a. Delete the app by touching and holding the app icon. Tap Rearrange apps.
b. Tap the ‘X’ next to your ReSound app and confirm you want to delete it.
c. Go to the app store and type ‘Smart 3D’ in the search field.
d. Tap Get and complete the download.
- Once reinstalled, open the app and begin the connection flow by tapping Get Started.
Source: Letter (webdamdb.com)