EmToken 2.0 and Factory Binary Approval — Complete Guide

Published 2026-06-17T15:47:57.000000Z.

What Is EmToken 2.0?

EmToken (also called eToken 2.0) is a one-time digital authorization key that allows Samsung service tools to flash factory binary (combination) firmware onto KG-locked or MDM-protected devices. Without an eToken, modern Samsung devices running recent bootloader revisions will reject combination firmware with the error: "Please get approval to use the factory binary."

Each eToken is tied to a single Device Unique Identifier (DID) and can only be used once. After flashing, the token is consumed and cannot be reused — so it is critical to complete the entire flash sequence successfully on the first attempt.

⚠️ One DID, One Use
Each eToken is permanently tied to a single device DID. If the flash fails, you need a new token. Always double-check your DID before submitting your order.

When Do You Need an EmToken?

• Samsung KG-locked devices that refuse standard combination firmware
• Devices stuck in MDM (Mobile Device Management) lock from enterprise enrollment
• Knox Guard activation preventing ADB access or normal firmware flashing
• CPID IMEI repair workflows that require factory binary boot
• Demo Unit (LDU) conversion to retail firmware on newer security patches

How EmToken 2.0 Works — Step by Step

1. Identify Your Device DID — Connect the device in EDL or Download Mode and use your flashing tool (Hydra, Chimera, Octoplus, UnlockTool) to read the DID. The DID is unique to each device and cannot be changed.
2. Purchase an eToken — Order an EmToken 2.0 from our server services catalog. Select the eToken service matching your device model and CPU type (Qualcomm or Exynos).
3. Submit Order with DID — When placing your order, enter the exact DID in the required field. Any typo will result in an invalid token that cannot be refunded.
4. Receive the Token — Once the service completes, you will receive the eToken key through your order dashboard. Copy it exactly — tokens are case-sensitive alphanumeric strings.
5. Flash in Your Tool — In your flashing software, navigate to the eToken/Factory Binary section, paste the token, and proceed to flash the combination firmware.
6. Complete the CPID or Unlock Process — After successfully booting into factory binary mode, you can proceed with CPID IMEI repair, KG lock removal, or demo unit conversion.

💡 Pro Tip
Before purchasing an eToken, verify your combination firmware binary version matches your device's current bootloader revision. Using an older binary will be rejected even with a valid token.

Common Mistakes to Avoid

• Wrong DID — Always double-check the DID before submitting. Read it twice from the tool.
• Wrong CPU Type — Qualcomm (QCOM) and Exynos tokens are different. Match your device chipset.
• Disconnecting During Flash — A failed flash still consumes the token. Ensure stable USB connection and full battery.
• Using Old Combination Files — Make sure your combination firmware binary version matches your device's current bootloader revision.
• Token Already Used — eTokens are single-use only. If a previous technician already consumed one for the same DID, a new token is required.

Supported Samsung Models

EmToken 2.0 supports most Samsung Galaxy devices from the S8 series onwards, including:

• Galaxy S8, S9, S10, S20, S21, S22, S23, S24 series
• Galaxy Note 8, Note 9, Note 10, Note 20 series
• Galaxy A series (A10–A73, A04–A55)
• Galaxy M series, F series, and XCover models
• Galaxy Tab S and Tab A series tablets

If you are unsure about compatibility, check the individual eToken service listing or contact our support team with your device model number.

🔑 Browse eToken Services 📖 Read eToken CPID Guide

Get Your EmToken 2.0

Browse our server services to find the correct eToken for your device. We offer fast delivery — most tokens are generated within minutes of order submission. For CPID repair workflows, see our Samsung eToken for CPID guide.

Browse Server Services → Need Help? Contact Support →

❓ Frequently Asked Questions

Q: What is the difference between EmToken 1.0 and EmToken 2.0?

EmToken 2.0 is the current generation required for Samsung devices with bootloader revisions from 2022 onward. EmToken 1.0 only works on older devices (2018–2021). Always check your device's binary version to determine which token you need.

Q: Can I reuse an eToken on the same device?

No. Each eToken is single-use and permanently consumed after one successful or failed flash attempt. If a flash fails, you must purchase a new token. This is why it is critical to ensure a stable USB connection and correct binary version before starting.

Q: How long does it take to receive an eToken after ordering?

Most eToken orders are completed within 2–10 minutes. The token appears in your order dashboard as soon as the supplier server generates and delivers it. Server service orders process 24/7.

Q: What happens if I submit the wrong DID?

Tokens are generated for the exact DID you submit. If you provide an incorrect DID, the generated token will be useless and cannot be refunded. Always double-check the DID by reading it twice from your flashing tool before submitting your order.

Q: Do I need an eToken for Exynos Samsung devices?

Yes, but you must purchase an Exynos-specific eToken. Qualcomm (Snapdragon) and Exynos tokens are different. Make sure you select the correct CPU type when ordering from our server services catalog.