If your iPhone 16 Pro is unexpectedly switching between SIMs, it's likely due to a setting or configuration issue. You can resolve this by checking your Dual SIM settings, ensuring "Allow Cellular Data Switching" is turned off, and potentially updating your iOS.
Check Dual SIM Settings:
- Go to Settings > Cellular or Mobile Data.
- Tap on Cellular Data or Mobile Data.
- Ensure Allow Cellular Data Switching is turned OFF.
Change Cellular Data Line:
- If you want a specific SIM to be the default for data, go to Settings > Cellular or Mobile Data.
- Tap on the SIM card you want to use for cellular data.
- Set the desired SIM as the primary line for cellular data
Restart Your iPhone:
- A simple restart can sometimes resolve minor software glitches that might be causing this behavior.
