What does dialing *#21# do on iPhone? - Apple Community
Aug 17, 2020 · What does dialing *#21# do on iPhone? Hello apple community, reccently I stumbled upon a tiktok trend that is about this number. You write it as if you would call a new …
Calling *#21# - Apple Community
Jul 23, 2020 · This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers. Calling *#21# …
What is Someone titan *#21# and what does… - Apple Community
Mar 14, 2021 · Dialing ##21# cancels call forwarding on your device (or again, just turn it off in settings). What confused me was the what is “someone titan *#21#” as that made no sense to …
com.apple.buildinfo.preflight.error error… - Apple Community
Dec 8, 2023 · warrenfromcarlton north Author Level 1 26 points com.apple.buildinfo.preflight.error error 21
[SOLUTION] Failed to restore device in re… - Apple Community
Nov 22, 2024 · [SOLUTION] Failed to restore device in recovery mode, libusbrestore error:21 [com.apple.MobileDevice.MobileRestore – 0x15 (21)]
Transfering Data to a new phone takes a f… - Apple Community
Dec 25, 2024 · Restoring your iPhone from an iCloud backup: Time Required: The time it takes to restore your iPhone from an iCloud backup depends on several factors, including: Amount of …
Account Recovery thoroughly explained - Apple Community
Aug 15, 2025 · Account Recovery thoroughly explained 14 7215 Last modified Aug 15, 2025 1:21 PM
My iPhone 17 Pro Max order is still under… - Apple Community
Sep 20, 2025 · Hello all, is there anyway who bought the iPhone 17 Pro Max and the status still stuck in processing since September 12th? [Re-Titled by Moderator] Original Title: Iphone 17 …
DFU Revive and Restore Error - Apple Community
Aug 13, 2023 · Failed to restore device in recovery mode, libusbrestore error:21 [com.apple.MobileDevice.MobileRestore – 0x15 (21)] And Irav88's message helped me! I …
Setting interrogation failed on iPhone - Apple Community
Feb 8, 2022 · Setting interrogation failed voice call forwarding on all calls [Re-Titled by Moderator]