Connect to PC and monitor Device Manager (Windows) or lsusb (Linux). You will see no VID/PID change when pressing Vol+/Vol- and inserting the cable. The chipset does not even enumerate as MediaTek USB Port (VID 0x0E8D).
A: No. You need a PC to re-flash or a JTAG box for hardware repair. oppo f11 dead after flash
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If Method 1 fails, the preloader is completely dead. You must force the eMMC into download mode. Connect to PC and monitor Device Manager (Windows)
Before we dive into the solutions, it's essential to understand the common causes of this issue: oppo f11 dead after flash