[toasteruser12]

I just got an OPPO Joy R1001 from a friend of mine. The phone doesn't turn on at all but PC does detect the phone so I tried to flash it. It disconnected while flashing at about 40% and now I can't flash it anymore because of DRAM failed to enable. I've tried to lot of firmware but none seems to work. The phone gets detected as MTK USB Port. 
If you have any clue whats going on please tell me, I'd appreciate it.

[Abdulakeem14]

I just got an OPPO Joy R1001 from a friend of mine. The phone doesn't turn on at all but PC does detect the phone so I tried to flash it. It disconnected while flashing at about 40% and now I can't flash it anymore because of DRAM failed to enable. I've tried to lot of firmware but none seems to work. The phone gets detected as MTK USB Port. 
If you have any clue whats going on please tell me, I'd appreciate it.

refer to https://www.hovatek.com/forum/thread-439.html

[hovatek]

I just got an OPPO Joy R1001 from a friend of mine. The phone doesn't turn on at all but PC does detect the phone so I tried to flash it. It disconnected while flashing at about 40% and now I can't flash it anymore because of DRAM failed to enable. I've tried to lot of firmware but none seems to work. The phone gets detected as MTK USB Port. 
If you have any clue whats going on please tell me, I'd appreciate it.

Take out and reinsert the battery and don't hold any button when connecting to PC for flashing
Flash only preloader first. Once that flashes, you can try other files

[toasteruser12]

I just got an OPPO Joy R1001 from a friend of mine. The phone doesn't turn on at all but PC does detect the phone so I tried to flash it. It disconnected while flashing at about 40% and now I can't flash it anymore because of DRAM failed to enable. I've tried to lot of firmware but none seems to work. The phone gets detected as MTK USB Port. 
If you have any clue whats going on please tell me, I'd appreciate it.

Take out and reinsert the battery and don't hold any button when connecting to PC for flashing
Flash only preloader first. Once that flashes, you can try other files

The PC doesn't detect the phone if I take the battery out. Is it bricked forever?

[toasteruser12]

I just got an OPPO Joy R1001 from a friend of mine. The phone doesn't turn on at all but PC does detect the phone so I tried to flash it. It disconnected while flashing at about 40% and now I can't flash it anymore because of DRAM failed to enable. I've tried to lot of firmware but none seems to work. The phone gets detected as MTK USB Port. 
If you have any clue whats going on please tell me, I'd appreciate it.

Take out and reinsert the battery and don't hold any button when connecting to PC for flashing
Flash only preloader first. Once that flashes, you can try other files

I also tried reinserting the battery but it also doesn't make any difference.

[Abdulakeem14]

I just got an OPPO Joy R1001 from a friend of mine. The phone doesn't turn on at all but PC does detect the phone so I tried to flash it. It disconnected while flashing at about 40% and now I can't flash it anymore because of DRAM failed to enable. I've tried to lot of firmware but none seems to work. The phone gets detected as MTK USB Port. 
If you have any clue whats going on please tell me, I'd appreciate it.

Take out and reinsert the battery and don't hold any button when connecting to PC for flashing
Flash only preloader first. Once that flashes, you can try other files

I also tried reinserting the battery but it also doesn't make any difference.

Uninstall and reinstall vcom drivers,
Try using another cable or PC

[hovatek]

I also tried reinserting the battery but it also doesn't make any difference.

Try format all except bootloader then flash only preloader