Instead of holding buttons to trigger BROM, you simply plug the phone in while it is powered off.
Use a tool like MTK Auth Bypass Tool (by MCT) or LibUSB . These tools "exploit" the stack to disable the security check momentarily, allowing SP Flash Tool to communicate with the device. 3. Update Your DA (Download Agent) File
Some scripts claim to force BROM via software on 0x146 devices. Use these with caution, as they can lead to a hard brick if the preloader is corrupted.
The is a hardware-level security lock. The best and most reliable solution is almost always the Test Point method . It physically overrides the security check, giving you full access to the chip for flashing, unlocking, or repair.