9. Four-player chess variants
Chess variants for four players. They play in two teams: Yellow and Red play against Green and Blue. The teammates support each other, and attack the other team together.
The game ends when someone gets checkmated. Then the checkmater team wins and the other team loses.
More detailed rules: Four-player chess. These variants differ only in the board and the movement of the pieces. The general rules are the same.
Under the Telecommunications Act, 2023, IMEI tampering is prohibited. Section 42(3)(c) explicitly makes it an offense, with penalties including imprisonment for up to three years, fines up to ₹50 lakh (approximately $60,000 USD), or both. These offenses are cognizable and non-bailable under Section 42(7). The Department of Telecommunications has also amended the Telecom Cyber Security Rules, 2025, to prevent assignment of duplicate IMEIs and to mandate checks against a centralized blacklist before reselling refurbished devices.
The modified QCN file is written back to the device over the Diagnostic COM port.
The (e.g., "IMEI 0", "Invalid IMEI", or "No Service"). If you have a backup of your original partition files.
Using these tools requires technical knowledge and a rooted device, or a device with diagnostic ports enabled. ⚠️ Prerequisite Check Essential for most direct-writing methods. qualcomm imei rebuilder tool
In the world of advanced smartphone repair and refurbishment, few tasks are as delicate or critical as repairing a Qualcomm device’s baseband configuration. When a device loses its ability to connect to a network—displaying "Unknown Baseband" or "NULL IMEI"—it is effectively a high-tech paperweight.
Disclaimer: This article is for educational purposes only. Modifying a device's IMEI is illegal in many jurisdictions, and improper use can permanently damage your phone. Proceed at your own risk.
Ultimate Guide to Qualcomm IMEI Rebuilder Tool: Repair & Restore IMEI Safely (2026) Under the Telecommunications Act, 2023, IMEI tampering is
For device owners, the message is clear: . Back up your QCN files early, avoid risky flashing operations, and seek professional help when problems arise.
The technician loads a healthy QCN file into the Qualcomm IMEI Rebuilder software. They enter the phone's original, legal 15-digit IMEI. The tool automatically converts this number into the required hex array format and injects it into the file structure. Step 4: Write and Reboot
The device displays no IMEI in the settings, resulting in "No Service." The Department of Telecommunications has also amended the
What or status do you see in your network settings? Do you have a backup of your original QCN or EFS partition?
The tool rebuilds the IMEI from your original box or sticker back into the correct NV items (usually NV item 550, 2754, etc.).
In many jurisdictions, changing or altering a device’s original IMEI number to disguise its identity or bypass a blacklist is highly illegal. In countries like the United States, the United Kingdom, India, and members of the European Union, altering an IMEI can result in severe fines or imprisonment.
The Qualcomm IMEI Rebuilder Tool refers to a category of third-party software utilities used to repair, write, or modify the International Mobile Equipment Identity (IMEI) number on smartphones powered by Qualcomm Snapdragon processors. This process relies on interacting with the device's Non-Volatile Random-Access Memory (NVRAM) or Qualcomm Product Support Tool (QPST) diagnostics mode.