Brom Disabled By Efuse 0x146 ~upd~ Jun 2026

| Manufacturer | Model(s) | Chipset | |---|---|---| | Vivo | Y15S V2120, V2139, Y21A, Y21, V2111 | MediaTek MT6765 | | Samsung | S134DL (likely Galaxy A03s) | MediaTek Helio | | Samsung | A037M | MediaTek Helio | | BLU | Studio Mini 2023 | MediaTek MT6761 (Helio A22) | | Motorola | Edge 60 Fusion | MediaTek MT6878 | | Redmi/Poco | A3, C61 | MediaTek | | TCL | T433D, 40 XL T608M | MediaTek |

⚠️ Warning: This is an advanced technique. Only perform this if you have micro-soldering experience or take it to a professional technician. 3. Authorized Brand Accounts

Note: Options below depend heavily on the SoC vendor, device design, and whether you have authorized access. brom disabled by efuse 0x146

Confirm via vendor flashing tool behavior

However, depending on your goal, there are alternative methods to service or unbrick the device. Solution 1: Use Preloader Mode (Crash Method) | Manufacturer | Model(s) | Chipset | |---|---|---|

The error message brom disabled by efuse 0x146 is not a random glitch but a deliberate, silicon-enforced lockdown. Understanding this eFuse’s role helps hardware security engineers, forensic analysts, and repair technicians differentiate between recoverable boot failures and permanent SoC bricking. As eFuse usage grows in IoT and mobile devices, similar “BROM disable” patterns will appear with different addresses (e.g., 0x200, 0x302). Documentation of these values is essential for open-source repair and security research.

Use fine-tipped tweezers or a jumper wire to . While holding the short, plug in the USB cable. Authorized Brand Accounts Note: Options below depend heavily

Practical step: In SP Flash Tool, go to Options > Authentication File and load the corresponding auth_sv5.auth file before connecting the device.

Older versions of SP Flash Tool (before v5.20) do not understand the new eFuse handshake protocol. Additionally, a standard DA file (e.g., MTK_AllInOne_DA.bin ) will trigger this error because it lacks the cryptographic signature required by the blown eFuse.