Oppo 3001 A.K.A Mirror 3 is powered by qualcomm Snapdragon SoC MSM8936. New Snapdragon device support new protocol "firehose" while older device can only handling sahara protocol.
Most qualcomm devices doesn't need spesific boot configuration. With the help of firehose protocol, a task like replacing eMMC is easy. We dont have to use "dump" from another phone. Task can be done just using official firmware packages and UFI Android ToolBox.
Oppo Mirror 3 is one of the rare device that cannot debrick using common methode. When using blank emmc, and flashing, device will stuck in "Fastboot Mode".
Normally we was using full dump the emmc for easy revive the phone.
But, in UFI Software version 18.104.22.1689 have special feature to solve this issue, Let's check it out :
Step1. Put blank eMMC in board.
Step2.Device now in qualcomm emergency mode 9008 mode, flash with factory firmware in the list
make sure you select firmware correctly
Step3. Now device will vibrate, and stuck in "Fastboot Mode", put device back to emergency mode (9008) by pressing vol up button, and connect Usb Data Cable
Step4. Once device is in emergency mode, select firmware according your previous flashing, go to "Special Task" and click "[Oppo] exit fastboot mode"
Step5. Done, your device working fine now