Samsung Model U/U1 Check
This check gives you the Make, Model, and ModelInfo2 fields to determine if the phone was associated with a specific carrier or network after manufacturing.
“U” models are carrier-specific devices (Verizon, AT&T, T-Mobile, etc.). They often include carrier firmware, pre-installed apps, and may be subject to network or policy restrictions.
“U1” models are factory-unlocked devices sold directly by Samsung. They’re not tied to a specific carrier and typically offer broader network flexibility and fewer software customizations.
Why It Matters
This check helps determine if a phone’s model and firmware were altered post-manufacture. This is a critical insight for validating authenticity, detecting repackaged or reprogrammed units, and maintaining resale and warranty integrity.
When to Use
Whether you’re assessing risk or inventory, this check keeps your Samsung pipeline transparent and trustworthy.
Returned Data Fields & Examples
| Field | Example |
| Status | Finished |
| Input | 5733111111XXXX |
| IMEI | 5733111111XXXX |
| Make | Samsung |
| Model | Galaxy S22 |
| ModelInfo2 | SM-N975U1 |
| Serial | R465839XXXX |