How do I fix black spots for data signal on my iPhone SE after update?

iPhones do not create black holes or dead zones for signals. Signal dead zones typically result from:

1. Tower Overlap & Handoffs – When multiple cell towers serve the same area, your phone may struggle to maintain a stable connection as it switches between them (called handoff issues).
2. Weak Cell Tower Signals – If you're on the edge of a tower's range, signal strength can drop.
3. Physical Obstructions – Buildings, mountains, tunnels, and even thick walls can block signals.
4. Network Congestion – Too many users connected to the same tower can weaken signal quality.

iPhones, like all smartphones, simply receive and process the signal available. They don’t actively cause black holes in reception. Additionally, there are no settings on an iPhone to "combat" these issues beyond standard troubleshooting like:

• Turning Airplane Mode on/off to force a reconnection.
• Manually selecting a network in Settings > Cellular > Network Selection.
• Use Wi-Fi Calling if the cellular signal is weak indoors.

If you’re experiencing signal drops, the issue is likely environmental or network-related rather than a problem with the iPhone itself.

In my opinion, this appears to be an aging product that is beginning to experience some issues. It is commendable that it has lasted this long, as in the EU, individuals typically retain their devices for a maximum of three years before upgrading. This is due to the perception that the SE series is not the most reliable. Therefore, I believe the current issues are more attributable to age than to software.