_best_ — Network Type 276 Unknown Or Unsupported

If using Qualcomm:

If the error appeared after a recent update, the new driver might be unstable.

Instead of translating this value into "4G" or "5G," the system sees the raw integer—276—and panics. It defaults to the error message "Unknown or Unsupported" because it literally does not have a definition for that specific code in its dictionary. network type 276 unknown or unsupported

This forces the modem to ignore the problematic frequency and stick to the stable 4G connection.

getprop gsm.version.ril-impl

If you are in an area with spotty 5G coverage, your phone might be trying to latch onto a 5G band that is misreporting its type, resulting in the 276 error.

Users on MVNOs (like Mint Mobile, Google Fi, or Boost) often see this when the "parent" network updates its towers but the MVNO hasn't pushed a corresponding "Carrier Settings" update to the device. How to Fix "Network Type 276 Unknown" If using Qualcomm: If the error appeared after

If an update is available, a pop-up should appear within 30 seconds. If not, ensure your System Updates are current. Step 3: Manually Adjust the APN If you suspect an APN issue:

Here is a deep dive into what this error means, why it happens, and how to resolve it. What is Network Type 276? This forces the modem to ignore the problematic

Carriers occasionally release small "Carrier Profile" updates. Go to .