The eFuse 0x146 is typically blown under these scenarios:
Tools like MTK Client (Python tool by bkerler) and UnlockTool have developed methods to bypass this authentication using a brom payload that ignores the eFuse check. brom disabled by efuse 0x146 best
: This is a hexadecimal value. In this context, it likely refers to a specific efuse address or value that controls the BROM. The eFuse 0x146 is typically blown under these
If you are using SP Flash Tool and see this error, go to and make sure the "Connection Type" is set to UART or USB (depending on your cable), and try unchecking the "Auto Detect" feature to manually select the Preloader port once the device is connected. If you are using SP Flash Tool and
Select your model, click "Disable Auth" or "BROM," and follow the prompt to hold Volume Up + Volume Down while plugging in. 3. Use the "Preloader" Port Instead
The eFuse 0x146 is typically blown under these scenarios:
Tools like MTK Client (Python tool by bkerler) and UnlockTool have developed methods to bypass this authentication using a brom payload that ignores the eFuse check.
: This is a hexadecimal value. In this context, it likely refers to a specific efuse address or value that controls the BROM.
If you are using SP Flash Tool and see this error, go to and make sure the "Connection Type" is set to UART or USB (depending on your cable), and try unchecking the "Auto Detect" feature to manually select the Preloader port once the device is connected.
Select your model, click "Disable Auth" or "BROM," and follow the prompt to hold Volume Up + Volume Down while plugging in. 3. Use the "Preloader" Port Instead