User level: Level 1 (4 points)After the latest iOS update, the message "Call and Siri Optimization in Progress" appeared on my iPhone 15 Plus. The percentage rose on the first day but has been stuck at 83% for three days. I restarted the phone, but nothing changed.
[Re-Titled by Moderator]
Original Title: Siri Optimization
Posted on Sep 18, 2026 1:12 PM
User level: Level 9 (74,110 points)Sep 18, 2026 1:15 PM in response to Hakanöge
Hi there
This indexing can take a really long time, try this
Plug It In: Connect your iPhone 15 Plus to a charger.
Connect to Wi-Fi: Ensure you have a stable Wi-Fi connection.
Leave It Idle: Lock the screen and leave the phone alone (ideally overnight) so the background engine can run without competing with apps you have open.
Free Up Storage: Check if your device storage is completely full. Offloading an unused large app can give the system breathing room to finish writing the database.
Originally posted at discussions.apple.com/thread/256360021