The TAC (first 8 digits of the IMEI) determines the model. The updated database adds over 12,000 new TAC codes released between 2023 and 2025, including obscure OEMs like Nothing Phone (2) and Fairphone 5.
| Log Message Variant | Meaning |
|-----------------------------------|-------------------------------------------------------------------------|
| IMEI ProInfo Update failed | NVRAM write error (full partition, bad block, or checksum mismatch) |
| IMEI ProInfo Updated (invalid checksum) | Data was written but verification failed → will revert on reboot |
| IMEI ProInfo Updated (duplicate) | IMEI already exists in another device’s database (rare) |
It is crucial to note that while updating your own device's Proinfo to restore the original IMEI is legal in most jurisdictions, modifying an IMEI to change or hide the identity of a phone is a serious offense (often a felony) in the US, UK, EU, and India.
The recent updates to Proinfo security are specifically designed to make "cloning" or "repairing by changing identity" virtually impossible. imei proinfo updated
The log message “IMEI ProInfo Updated” is a low‑level system notification generated by the baseband processor or the Radio Interface Layer (RIL) within Android‑based devices (and some other embedded systems). It signals that the device’s persistent storage partition (e.g., NVRAM, EFS, or modem metadata) has successfully written a new or updated ProInfo record linked to the device’s IMEI (International Mobile Equipment Identity). This event is critical for network registration, device fingerprinting, and anti‑theft mechanisms.
Assume you have just received a used iPhone 14 Pro. Here is how to use IMEI ProInfo Updated:
Pro Tip: After checking the IMEI, ask the seller to power off and on the phone in front of you. Then re-check the IMEI. Some fraudulent sellers temporarily remove a blacklist using a hardware bypass box; rebooting resets this. The TAC (first 8 digits of the IMEI) determines the model
This message appears in:
Trigger events include:
How does it stack against other popular IMEI checkers? Pro Tip: After checking the IMEI, ask the
| Feature | IMEI ProInfo Updated | IMEI24 | SickW | CheckMEND | | :--- | :--- | :--- | :--- | :--- | | Price | Freemium (5 free daily) | Free (with ads) | Paid only | Paid only | | Apple iCloud Status | Yes (Advanced) | Limited | Yes | No | | Carrier Lock Details | Yes (Real-time) | Delayed 48hrs | Yes | Yes | | Samsung Knox Status | Yes | No | No | No | | eSIM Data | Yes | No | No | No | | Update Frequency | Real-time | Weekly | Daily | Monthly |
Verdict: For general use, free tools like IMEI24 work. But for professional accuracy and depth—especially concerning blacklist, carrier unlocks, and anti-theft locks—the IMEI ProInfo Updated version leads the market.
Pro Tip: After checking the IMEI, ask the seller to power off and on the phone in front of you. Then re-check the IMEI. Some fraudulent sellers temporarily remove a blacklist using a hardware bypass box; rebooting resets this.
This message appears in:
Trigger events include:
How does it stack against other popular IMEI checkers?
| Feature | IMEI ProInfo Updated | IMEI24 | SickW | CheckMEND | | :--- | :--- | :--- | :--- | :--- | | Price | Freemium (5 free daily) | Free (with ads) | Paid only | Paid only | | Apple iCloud Status | Yes (Advanced) | Limited | Yes | No | | Carrier Lock Details | Yes (Real-time) | Delayed 48hrs | Yes | Yes | | Samsung Knox Status | Yes | No | No | No | | eSIM Data | Yes | No | No | No | | Update Frequency | Real-time | Weekly | Daily | Monthly |
Verdict: For general use, free tools like IMEI24 work. But for professional accuracy and depth—especially concerning blacklist, carrier unlocks, and anti-theft locks—the IMEI ProInfo Updated version leads the market.