Last Updated: October 2025
Model: Samsung GT-B310E (Guru Music 2)
File Version: CM2
If you own a Samsung B310E and it’s stuck on the logo, showing a “Insert SIM” error loop, or locked with a network/FRP (Factory Reset Protection) issue, you likely need a flash file (firmware) to revive it.
The most searched version is the CM2 build. Here’s everything you need to flash your Samsung B310E completely free and without a password.
Search YouTube for “Samsung B310E CM2 flash Odin” – Look for videos uploaded by “GSM ACHIEVE” or “Mobile Solutions” (no password required).
To ensure you have the correct file, verify these details before flashing:
| Specification | Details | | :--- | :--- | | Model | Samsung B310E (Guru Music 2) | | Version | CM2 (Latest Revision) | | Baseband | SC6531 (Spreadtrum) | | File Extension | .cm2 (Native format) | | File Size | 4.8 MB (exact) | | Password | Not required | | Boot Repair | Yes (Fixes dead boot) | | Language | Multi (English, Arabic, Hindi, etc.) |
If you're experiencing issues with your Samsung B310E, consider reaching out to Samsung's official support or a professional technician who can provide safe and effective assistance.
The Samsung SM-B310E Go to product viewer dialog for this item. (Guru Music 2) flash file for the Infinity-Box Chinese Miracle-2 (CM2) Go to product viewer dialog for this item.
dongle is a critical tool for technicians looking to resolve software-related issues without the hassle of password-protected archives. Using a "tested" and "password-free" version ensures a smooth workflow, especially when dealing with common problems like network loss, device hangs, or forgotten phone locks. Key Benefits of the CM2 Flash File
Versatile Repair Options: This specific flash file allows you to fix "Hang on Logo" issues, perform "Dead Repair" on unbootable units, and remove SIM or phone locks.
Safe Flashing: When using the tested firmware with a reliable tool like CM2 or the Research Download Tool, the risk of "dead" units is significantly reduced.
IMEI & Network Restoration: Some users experience "No Network" after a generic flash. Using the correct CM2-read file often prevents this, and the tool itself can be used to repair Null or Invalid IMEIs if they occur.
No Password Access: Obtaining a file without a password saves time and avoids the risk of downloading malicious "password extractors" from untrustworthy sites. Technical Specifications Model: Samsung Guru Music 2 (SM-B310E) Go to product viewer dialog for this item. CPU: Spreadtrum SPD6530 Connectivity: Dual SIM, GSM Flashing Tool: Infinity-Box CM2 (SPD module) Go to product viewer dialog for this item. or Research Download Tool Flashing Procedure Overview
Preparation: Download the tested flash file and ensure you have the Samsung USB Drivers or Spreadtrum Drivers installed on your PC.
Tool Setup: Open the CM2 SPD module. Select the appropriate CPU (SPD6530) and load the .pac or binary flash file.
Connection: Power off the phone. Hold the Center/OK button (Boot Key) and connect it to the PC via a micro-USB cable.
Execution: Click "Flash" or "Write" and wait for the process to complete (usually 4–5 minutes). The phone should automatically restart once finished.
Searching for a Samsung B310E flash file for CM2 that is free and requires no password is a common task for technicians looking to fix issues like hanging on the logo, dead recovery, or forgotten security locks. The Samsung Guru Music 2 (SM-B310E) uses the SPD6530A CPU, requiring specific firmware and tools for a successful repair. Download Links for Samsung B310E Flash File
You can find tested, password-free firmware at the following reputable sources:
Official Stock Firmware: Available at FirmwareXBD and OfficialROMs.
Tested CM2 Read File: Specifically for Infinity CM2 users, a 100% tested "Read File" can be found on FirmwareBD. samsung b310e flash file cm2 without password free
Latest PAC File: For direct flashing via FRP-Tool, which provides the official PAC format. How to Flash Samsung B310E Using Infinity CM2
Flashing with the Infinity-Box CM2 Dongle is one of the safest methods to restore your device. Follow these steps:
Preparation: Install the necessary SPD USB Drivers on your PC and extract the downloaded flash file. Open CM2 SPD: Launch the Infinity CM2 SPD module.
Select CPU: In the settings or platform tab, select SPD6530 (or the corresponding 6530A/L version).
Load File: Navigate to the "Flash" tab and load the Samsung B310E PAC or Bin file. Boot the Device: Power off the phone and remove the battery for 5 seconds. Reinsert the battery.
Hold the OK/Center button (Boot Key) and connect the phone to your PC via USB.
Start Process: Click "Write Flash" or "Start" in the CM2 software. The tool will recognize the device and begin the flashing process.
Completion: Once the tool shows "Success" or "Finished," disconnect the phone and power it on. Common Issues Fixed by Flashing
Hang on Logo: Fixes the device when it gets stuck at the "Samsung Music 2" screen.
Forgotten Password: Completely removes security codes and SIM locks without needing a password for the file itself.
Dead Recovery: Revives phones that won't turn on due to software corruption.
White Screen/Restarting: Resolves display bugs or constant reboot loops.
Pro Tip: If you just need to reset a security code without a full flash, you can use the Read Info or Reset Settings feature in CM2, which often reveals the existing code or clears it instantly.
To flash a Samsung B310E (Guru Music 2) using a CM2 (Infinity-Box) dongle, you typically need a compatible firmware file and the specific SPD (Spreadtrum) module. Core Flashing Requirements Flash Tool: Infinity-Box Chinese Miracle-2 (CM2) SPD Module. Flash File: Samsung B310E Stock ROM (often available in Spreadtrum (SPD) USB Drivers installed on your PC. Center (OK) button or sometimes the Volume buttons are used as boot keys when connecting the USB cable. Steps to Flash with CM2 Open CM2SPD Tool: Launch the CM2 SPD module on your computer. Select CPU/Platform: Choose the correct Spreadtrum platform (typically for this model). Load Flash File:
and select your B310E flash file (ensure it is the "no password" free version often found on community forums like Initiate Flashing: Write Flash Connect Device: Power off the phone. (Center/OK button) and connect the USB cable.
The tool should detect the phone and start the flashing process automatically. Completion: Wait for the "Flash Done" message before disconnecting. Alternative: Password Removal (Hard Reset)
The Samsung B310E (Guru Music 2) uses a Spreadtrum (SPD) chipset, specifically the SC6531. To flash this device using CM2 (Infinity Chinese Miracle-2), you need the correct firmware (Flash File) and specific drivers to ensure the tool communicates with the device's CPU. 1. Samsung B310E Flash File Overview
While CM2 can create its own backups (typically in .bin format), it can also write official firmware files.
File Format: Look for .pac (standard Spreadtrum format) or CM2-specific backups. Chipset: Spreadtrum SC6531.
Download Source: You can find free firmware downloads on community-driven sites like FirmwareFile or through guides provided by Tech Tamil vLog. Samsung B310E Flash File (CM2) – Free Download
No Password Requirement: Most links provided by reputable technicians on YouTube or specialized firmware forums are shared without password protection for community use. 2. Flashing Procedure using CM2
Preparation: Install the Spreadtrum (SPD) Drivers on your PC to ensure the COM port is detected. CM2 Module: Open the CM2SPD module.
Select CPU: In the "Settings" tab, select the SC6531 platform. Load File: For official firmware: Use the PAC file option.
For CM2 backups: Use the Read/Write tab and select the .bin or .sc file. Connection: Power off the phone. Remove and re-insert the battery. Hold the OK (Center) button as the Boot Key. Connect the USB cable.
Action: Click Write or Flash and wait for the "Passed" or "Done" message. 3. Troubleshooting & Alternatives
Hard Reset: If the phone is only locked and not "dead," you can try the reset code: *2767*3855# while the phone is powered on.
Free Flash Tools: If you do not have the CM2 dongle, you can use the Research Download Tool or Miracle Thunder.
SIM Lock: CM2 is specifically effective for removing SIM locks on this model via the "Sim Lock Remove" function in the tool.
Warning: 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.
To flash the Samsung B310E (Guru Music 2) using the CM2 (Infinity-Box Chinese Miracle-2)
dongle or similar tools, you generally need the original PAC firmware file and the appropriate SPD (Spreadtrum) drivers. 1. Preparation Requirements Before starting, ensure you have the following: Flash File: You need the official Samsung B310E PAC file
(Firmware). Ensure it is the "Original" or "Stock" version to avoid common errors like "Image size is over its partition". CM2 Dongle:
The CM2SPD module is used for this specific model, as the B310E runs on a Spreadtrum chipset. SPD Drivers:
Install the latest Spreadtrum USB drivers on your PC so the tool can recognize the device in Boot Mode. USB Cable: A standard Micro-USB data cable. 2. Flashing Procedure (CM2 Tool)
If you are specifically using the CM2 dongle to remove a password or fix a boot loop: Open CM2SPD: Launch the Infinity-Box CM2SPD software on your PC. Select Platform:
In the "Settings" tab, select the correct CPU platform (usually for the B310E). Load Flash File:
If you are doing a full flash, go to the "Flash" tab and load the PAC file you downloaded. Remove Password Only:
If your goal is only to remove a forgotten password without losing data, you can often use the "Read User Code" "Format FS" options in the "Service" tab. Connect Device:
Power off the phone and remove the battery for 5 seconds, then reinsert it. Center (OK) button
(the Boot Key for B310E) while connecting the USB cable to the PC. Official Sources : Always prefer official sources for
The tool should detect the "SPD VCOM" port and begin the flashing or unlocking process. 3. Alternative: Flashing Without a Box If you do not have the CM2 dongle, you can use the free Research Download Tool Upgrade Download Tool SPD Upgrade Tool
Load the PAC file into the tool, click "Start," and connect the phone while holding the Center button. 4. Quick Reset Code
If the phone is already on and you just need to factory reset it (wiping all data), you can use the master reset code: *2767*3855#
This will delete all user data and reset the phone to factory settings, effectively removing any user-set phone locks. Mobile Master
Always backup important data before flashing, as the process typically erases all internal storage. for the official B310E firmware or the SPD drivers Hard Reset SAMSUNG B310E Guru Music 2
To flash the Samsung SM-B310E Go to product viewer dialog for this item.
(Guru Music 2) using Infinity CM2 (SPD module), you need the official stock firmware in .pac or .bin format. Required Files
Flash File: You can download the tested, password-free firmware via this Samsung B310E Flash File link.
Drivers: Ensure you have the Spreadtrum (SPD) USB Drivers installed. Tool: Use the Infinity-Box CM2SPD module. Flashing Steps via CM2
Open CM2SPD: Launch the Infinity-Box CM2 Spreadtrum module on your PC.
Select CPU: In the "Settings" tab, select the correct CPU/Platform for (typically or Go to product viewer dialog for this item. depending on your specific board version). Load Firmware: Go to the Flash tab.
Click on Select File and navigate to your downloaded firmware (select the .pac or .bin file). Initiate Flash: Click the Write Flash button. Connect Device: Power off the phone completely. Hold the Center (OK) button as the boot key. Connect the phone to your PC via a USB cable.
Complete Process: The tool will detect the device and start writing the firmware. Wait for the "Done" message before disconnecting. Alternative: Hard Reset Code
If you are flashing only to remove a phone lock, you can try this master reset code first: *2767*3855#. Note: This will erase all user data.
Click Start.
Wait 3–5 minutes. ODIN will show PASS! in green. Your phone will reboot automatically.
Right-click the downloaded .rar file and select “Extract Here” (no password needed).
| Error Message | Solution | |---------------|----------| | “Fail!” or “Complete(Write) operation failed” | USB cable is bad – try another. Also, run Odin as Admin and restart PC. | | “No response from device” | Reinstall Samsung USB Driver. Try a different USB port (USB 2.0 preferred). | | Phone stuck in Download Mode after flash | Remove battery for 30 seconds, reinsert, then hold Power + Volume Down for 10 seconds. | | Odin detects but flash freezes at setup connection | Disable antivirus temporarily. Close Samsung Kies/Smart Switch. | | After flash, password is still there | You loaded wrong CSC or didn’t check “Auto Reboot”. Reflash with the CSC file (not HOME_CSC). |
Most free file hosting websites (Mediafire, 4shared, etc.) offer B310E files with a catch:
Our file is different. We provide the raw .cm2 file directly. No extraction password. No survey. No payment.