This information will help pinpoint whether you need a full QCN restoration or simple parameter writing. Share public link
Some security software may flag these tools as "Potentially Unwanted Programs" (PUPs). It is often necessary to temporarily disable your antivirus, but only if you trust the source.
: Can also write Bluetooth addresses, Wi-Fi MAC addresses, and Serial Numbers. Step-by-Step Usage Guide
In the UK, the and the Violent Crime Reduction Act 2006 make it an offense to change or interfere with an IMEI number. A person found guilty of this offense can face up to 5 years' imprisonment, an unlimited fine, or both. The same laws also make it an offense to simply possess or supply the "equipment required to reprogramme" an IMEI number.
You must acquire and unpack the official Qualcomm Driver package . The tool will completely fail to discover your phone if the computer cannot identify the Qualcomm HS-USB Diagnostics QDLoader interface. qualcomm-smartphone-write-imei-tool-v1.01.zip
Verify that the device is detected under the selection dropdown (it should read something like Qualcomm HS-USB Diagnostics 901D (COMxx) ).
| Prerequisite | Description & Action | | :--- | :--- | | | A computer running Windows 7, 8, 10, or 11. | | USB Cable | A high-quality, data-sync capable USB cable. | | Qualcomm Driver | The correct Qualcomm HS-USB drivers (e.g., QDLoader 9008 or Diagnostics) must be installed and manually configured on your PC. | | USB Debugging | Enable "Developer Options" and "USB Debugging" in the Android device's settings. | | Root Access | The Android device must be rooted . This tool modifies system-protected partitions, which requires root privileges to communicate with the modem. | | Unlocked Bootloader | Some devices require an unlocked bootloader to allow low-level write access to system partitions. | | ADB & SDK Tools | Download and install the Android SDK Platform Tools on your PC. These tools facilitate the command needed to switch the device into DIAG mode. |
: Typically, such tools are designed to be user-friendly. The tool might come with a simple interface that guides users through the process of writing or modifying the IMEI.
A progress bar appeared. It didn't move for ten seconds. Elias held his breath. If the tool crashed now, the partition would be corrupted forever. The internal "NVRAM"—the phone's deepest memory—was being rewritten. This information will help pinpoint whether you need
Locate the IMEI input fields in the tool (IMEI 1 and IMEI 2). Carefully type your device's original 15-digit IMEI number.
⚠️ Alterar o número IMEI original de um aparelho é ilegal em muitos países. Use esta ferramenta apenas para fins de reparo e restauração do número original do fabricante. Não nos responsabilizamos pelo uso indevido ou danos ao hardware.
The fundamental process for using this tool is outlined below, based on technical repair guides:
Comprehensive Guide to Qualcomm Smartphone Write IMEI Tool v1.01 : Can also write Bluetooth addresses, Wi-Fi MAC
: Resolve "Invalid IMEI" errors that prevent SIM cards from registering on a network.
: Some tools offer the ability to backup and restore the original IMEI, ensuring that users can revert changes if needed.
| Error Message | Likely Cause | Solution | |---------------|--------------|----------| | No DIAG port found | Drivers not installed or phone not in DIAG mode | Reinstall drivers, check USB cable, try different USB port | | IMEI length invalid | Less than 15 digits entered | Double-check IMEI; must be exactly 15 digits | | Write failed at 20% | NV item locked (security) | Try in EDL mode or use a patched version of the tool | | Phone not responding | Incompatible chipset | This tool works best on MSM8917, 8953, 8996, 8998; newer chips need v2.x tools | | Checksum mismatch | Corrupted baseband | Restore stock firmware via QFIL first |
Carefully type the original 15-digit IMEI number(s) found on the phone's original retail box or beneath the battery housing into the text fields. Double-check the numbers for typographical errors.