Unlike many files on the internet that are locked behind premium walls or require a decryption password, the firmware file provided below is completely free, tested, and password-unlocked. Samsung Guru Music 2 (SM-B310E) Chipset: Spreadtrum (SPD) File Type: CM2 Backup / Bin File / PAC File Password: None (Completely Free) File Status: 100% Tested & Virus-Free Prerequisites Before Flashing

Flashing incorrect firmware can lead to a "White LCD" or "Dead" state. Always verify that the flash file matches your specific region and hardware version before proceeding.

Flashing wipes all user data. Backup contacts and messages if the device is partially accessible. Download Links (No Password)

The CM2SCR (Spreadtrum/SCxD) tool installed on your computer.

Ensure you have the latest version of the Infinity-Box CM2 SCR or SPD software installed on your PC.

Using the CM2 dongle allows for direct operations like sim unlocking and password removal. Firmware Format : Files for CM2 are typically in Password Removal

For mobile technicians, the Samsung B310E (Guru Music 2) remains a widely used device that occasionally requires software maintenance, such as flashing, to resolve issues like the "Phone Lock," "Hang on Logo," or "SIM Lock". A critical asset for this process is a reliable flash file (stock ROM) compatible with professional tools like the CM2 (Chinese Miracle 2)

Download and install the official Spreadtrum USB drivers corresponding to your Windows architecture (32-bit or 64-bit).

A working standard Micro-USB data cable and the Infinity-Box CM2 Dongle hardware interface connected to your PC.

: Ensure the battery is at least 50% charged. If the process stops, try a different version of the CM2 tool or another tested flash file.

To ensure you have the correct file, verify these details before flashing:

Once the flashing process is complete, a "Done" message will appear. Disclaimer

While holding the key, plug the micro-USB data cable from the computer into the phone.

The tool should detect the device and begin the process. Wait for a "PASS" or "Success" message before disconnecting. User Insights

The Samsung B310E is a classic feature phone powered by a Spreadtrum chipset, which is fundamentally different from the Android system found on modern smartphones. Consequently, you cannot reset it through a Google account or a standard settings menu.