![]() Because of this practice, firmware flashing via download mode can only be performed by a signed “Download Agent” program that has been authorized by the corresponding OEM, essentially meaning that you can’t flash or unbrick your own smartphone unless you have permission from the device maker to do so. Since the low-level download mode effectively has full control over the device’s storage, many OEMs including Xiaomi and Realme have started obfuscating the flashing process. ![]() A MediaTek-made proprietary program called “SP Flash Tool” can utilize this interface to force flash the system software on a device. ![]() It is strictly intended for OEM servicing and can be used to unbrick a device, just like Qualcomm’s Emergency Download Mode (EDL). ![]() Devices with MediaTek chipsets have a BROM (boot read-only memory), which typically loads the preloader executable and subsequently boots the Android system, but also houses an alternative boot mode known as Download mode. ![]()
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