The MT6789 (also known as the Helio G99) is MediaTek's mainstream mobile processor powering dozens of popular mid-range Android smartphones. Manufactured on TSMC's 6nm process, this octa-core chipset integrates two ARM Cortex-A76 performance cores clocked at 2.2GHz and six Cortex-A55 efficiency cores at 2.0GHz, paired with an ARM Mali-G57 MC2 GPU. Originally announced in May 2022, it quickly became a staple in budget-friendly yet capable devices from brands like Xiaomi (Redmi Pad, Poco C65), Realme (Realme 10 4G), and Tecno (Tecno Spark 20 Pro, Infinix Note 40 Pro).
Bypassing Factory Reset Protection (FRP) or screen locks.
ALPS09474894.
The MT6789 auth bypass is a technique that leverages a vulnerability in the preloader or bootrom phase of the chipset. By exploiting this, a script can disable the authentication check ( Protection Disabled ), allowing the user to bypass the requirement for a vendor login. Unbricking: Flashing stock firmware to recover dead phones. Rooting: Installing custom ROMs or modified boot images. FRP Removal: Bypassing Factory Reset Protection. IMEI Repair: Restoring NVRAM or fixing IMEI issues. 2. Tools Used for MT6789 Bypass (2026 Update) mt6789 auth bypass
Follow these steps carefully to trigger the BootROM state and apply the bypass. Step 1: Prepare the Software
If a bad flash or interrupted update cuts off the Preloader, BROM mode paired with an auth bypass is the only way to rewrite the system partitions.
In the world of Android customization and repair, MediaTek (MTK) chipsets are renowned for their performance-to-cost ratio, powering a vast number of mid-range smartphones. However, starting around 2020-2021, MediaTek introduced a security mechanism called , which required a vendor-specific login to flash firmware, limiting unauthorized flashing, unbricking, or rooting. The MT6789 (also known as the Helio G99)
| CVE | Description | Severity | |-----|-------------|----------| | CVE-2026-20447 | Out-of-bounds read in geniezone leading to privilege escalation | Medium (6.7) | | CVE-2026-20435 | Preloader information disclosure of device identifiers | Medium (4.6) | | CVE-2025-20749 | Charger out-of-bounds write leading to privilege escalation | Medium | | CVE-2025-20784 | Use of uninitialized variable in display causing disruption | Low | | CVE-2025-20771 | Improper input validation in display | Low |
The preloader component manages early hardware initialization and download mode entry. The CVE-2025-20730 vulnerability identified in the preloader stems from an insecure default value, allowing a local application to execute arbitrary code.
MediaTek chipsets power billions of mobile devices worldwide. While their affordability democratizes technology, their security architecture frequently faces scrutiny from security researchers and developers alike. Among these chipsets, the MT6789—commercially known as the MediaTek Helio G99—is a highly popular SoC found in numerous mid-range smartphones. Bypassing Factory Reset Protection (FRP) or screen locks
Question: Is the security enabled mt6789 problem solved #86 - GitHub
This analysis reflects information available through May 2026. Security researchers should consult MediaTek's product security portal for the most current bulletin information.