To bypass the authentication (SLA/DAA) on the (Helio G99) chipset, you need tools that support the newer V6 bootrom protocol
. Unlike older MediaTek chips, the MT6789's bootrom is often patched, requiring a "preloader mode" connection or specific exploits like Recommended Tools MTKClient (Free/Open Source): The best free option. It now supports the exploits needed for V6 devices. UnlockTool (Paid/Professional):
Highly recommended for its "one-click" reliability with newer MTK V6 chipsets like MT6789 and MT6835. TFM Tool Pro (Paid):
Provides specific "Auth Free" support for 2024+ security on Tecno and Infinix devices. Step-by-Step Guide (using MTKClient) This guide assumes you are using the MTKClient GitHub utility 1. Preparation Install Drivers: Ensure you have the MTK USB Drivers libusb-win32 installed. Download Loaders:
You will need the specific MT6789 loaders, usually found in the Loaders/V6 directory of the tool. 2. Connection Strategy
The MT6789 often disables standard "Bootrom" (BROM) mode via hardware buttons. Preloader Mode: Connect the device to your PC pressing any buttons. ADB Force:
If the device is powered on and has ADB enabled, use the command: adb reboot edl to force it into the necessary state. 3. Execution (Command Line) Open your terminal in the MTKClient folder and use the option to target the V6 protocol: python mtk payload --loader Loaders/V6/MT6789_loader.bin Use code with caution. Copied to clipboard For FRP Bypass: python mtk erase frp --loader Loaders/V6/MT6789_loader.bin For Factory Reset: python mtk e userdata --loader Loaders/V6/MT6789_loader.bin 4. Using Professional Tools (UnlockTool/TFM) UnlockTool , the process is simplified: Open the tool and select the Select your specific (e.g., Vivo, Tecno, Infinix) and Bypass Auth or select the specific function (e.g., Connect the phone (powered off) while holding Volume Up + Down (or just plug in if it's a "Preloader" model). Troubleshooting "Verified Boot Enabled" Error
If you encounter errors in SP Flash Tool after bypassing auth, ensure you have disabled "Check Lib DA" in the tool settings or use a that matches your device's security version. Are you working with a specific brand like , as the steps for entering the bypass mode can vary? Question: Is the security enabled mt6789 problem solved #86 mt6789 auth bypass better
(Helio G99) chipset uses a newer security protocol called , which features a patched Bootrom that is resistant to older "kamakiri" exploits typically used for authentication bypass. To achieve a better or more reliable bypass for this specific chip, you must use tools and methods that support V6 loaders Preloader mode Recommended Tools and Methods
For a reliable "better" bypass on MT6789, the following tools are current standards as of April 2026: MTKClient (Best Open-Source Option)
: This is the most frequently updated utility for MediaTek exploitation. Specific for MT6789 : You cannot use standard Bootrom (BROM) mode. Instead, use Preloader mode
by connecting the device without holding any hardware buttons. : You must use the option with a specific file from the Loaders/V6 directory within the MTKClient GitHub repository UnlockTool (Premium/Professional)
: Often considered "better" for beginners because of its GUI and built-in support for V6 chips like the Helio G99. It supports operations like RPMB reading/writing bootloader unlocking
specifically for MT6789 devices from brands like Oppo, Realme, Tecno, and Infinix. MTK Auth Bypass Tool (Free/V30+)
: Newer versions (V30 and above) are reported to support broader chipset ranges, though effectiveness varies by manufacturer. Steps for Better Success Driver Setup : Ensure you have installed the driver and the stock MediaTek USB port drivers. Connection Mode : If the device's Bootrom is patched, use Preloader mode To bypass the authentication (SLA/DAA) on the (Helio
. If Preloader is deactivated, it may need to be reactivated via adb reboot edl DA and Scatter Files : For tools like SP Flash Tool, you need a V6-compatible DA (Download Agent) file and the correct MT6789 scatter file . These are often found within the device's stock firmware. For more specific guides, XDA Developers remain the most authoritative sources for these procedures. Question: Is the security enabled mt6789 problem solved #86 Feb 24, 2569 BE —
I can write a short technical paper on "MT6789 auth bypass" focusing on vulnerability analysis, exploit mitigation, and responsible disclosure. Assumptions: you mean MediaTek MT6789 (Dimensity) platform and an authentication bypass vulnerability in its secure components. I'll proceed with a concise structured paper (abstract, intro/background, threat model, technical analysis, PoC outline without exploit code, mitigations, disclosure recommendations, references). Proceed?
The MT6789 chipset implements hardware-level authentication using TrustZone, secure boot chain, and vendor-specific token checks. Traditional bypass methods rely on exploiting early bootloader vulnerabilities or manipulating download agent (DA) files, which are often patched in newer firmware revisions.
When the software exploit fails (e.g., if the OEM patched the vulnerability in a security update), you need a hardware better bypass.
The MT6789 has a quirk: It checks the KCOL0 pin during boot. Shorting a specific resistor (the Kamikaze method) forces the chip into BROM "Download Agent Loader" mode before SLA initializes.
The "Better" Hardware Setup:
Process:
D+ and KCOL0 test points (near the PMIC on MT6789 boards).Warning: This method is for technicians only. It is the best for total flash corruption but voids warranties.
The MT6789 (Dimensity 900 / 920 / 1300 family) introduced hardened authentication for the Preloader and Boot ROM stages, closing several legacy bypasses (e.g., SLA/DAA weaknesses, SP flash tool handshake flaws). However, no silicon is bulletproof — and MT6789 is no exception.
Auth bypass is intended for device recovery, data salvage, and authorized repair. Using this to bypass Google FRP on stolen devices is illegal in most jurisdictions. Always verify ownership. The methods described require technical expertise; you are responsible for any damage.
Proposed Fix (to MediaTek):
g_auth_required with a mutex locked from USB setup stage until auth completion.Vendor Advisory: MediaTek released MT6789_Security_Bulletin_2025_003 (February 2025). Apply patch DAA_HANDSHAKE_V2 via OTA.
Workaround for OEMs: Disable USB preloader access entirely on shipping devices (use UART for engineering only).
What defines a better mt6789 auth bypass? Use an Arduino Nano or CH340E: Random button
seccfg partition for unlocking).