Dumping Games
If you need further help, ask on the official Cemu Discord Server for assistance.
In this section, we look at how to "dump" (copy) your games, updates, DLC and saves from your Wii U system over to your PC.
To do this, we are going to run a dumping application through the Wii U browser to transfer your games to a USB storage device or SD card.
For digital games, it is easier to simply dump the account data from your Wii U, then use that to download the games from the eShop directly to your computer. If you have a weaker internet connection, you can also dump digital games directly from the console using the dumping app.
Requirements
- A FAT32 formatted USB storage device or SD card
TIP
All storage devices must be formatted to FAT32 with a 32KB (32768) allocation. For storage devices larger than 32GB, use guiformatopen in new window to format it correctly.
Ensuring your password is saved
- Turn on your Wii U console
- If prompted, do not format any USB devices through the Wii U
- Load up the account you are going to use online
- To switch accounts, open the top-left avatar
- After you are on the correct account, open the top-left avatar once again
- Scroll down and turn on the "Save password?" feature
Launching Dumpling
- Return to the Wii U Home Menu
- Ensure that the title you want to dump has the latest update and any relevant DLC installed
- Some games, such as Breath of the Wild, require an update to perform correctly in Cemu
- If using a disk, ensure it is inserted before launching Dumpling
- Insert your USB storage device or SD card
- Launch the internet browser and open
https://dumplingapp.com/
- Tap
Launch Dumpling
- If your console freezes for more than 10 seconds, hold down the Power button for 4 seconds and reboot
- Once rebooted, reset the browser's save dataopen in new window and try again
Using the Dumpling app
- Select
Dump files to use Cemu online
- Verify that the dump's destination is correct (SD or USB)
- Ensure your desired Wii U Account is set
- Select
Start
to begin dumping - When finished, go back to the Dumpling main menu
- Exit the Dumpling app
Copying the Online Files to Cemu
- Take your USB storage device or SD card out of your Wii U and put it in your PC
- Copy
otp.bin
andseeprom.bin
from the/dumpling/Online Files
folder to your Cemu directory- This is where
Cemu.exe
is located
- This is where
- Copy the
sys
andusr
folders from/dumpling/Online Files/mlc01
on your SD/USB device to themlc01
folder- By default, the
mlc01
folder is located in the Cemu folder - If you are unsure where it is, check in
Options
->General settings
under "MLC Path" - Overwrite any files if prompted
- By default, the
WARNING
Ensure you have enough storage space for your dump. The largest Wii U game is 17GB, however the majority of games will not need that much.
Launching Dumpling
- Turn on your Wii U console
- If prompted, do not format any USB devices through the Wii U
- Ensure that the title you want to dump has the latest update and any relevant DLC installed
- Some games, such as Breath of the Wild, require an update to perform correctly in Cemu
- If using a disk, ensure it is inserted before launching Dumpling
- Insert your USB storage device or SD card
- Launch the internet browser and open
https://dumplingapp.com/
- Tap
Launch Dumpling
- If your console freezes for more than 10 seconds, hold down the Power button for 4 seconds and reboot
- Once rebooted, reset the browser's save dataopen in new window and try again
Using the Dumpling app
- Select
Dump a game disc
- Verify that the dump's destination is correct (SD or USB)
- Ensure your desired Wii U Account is set
- Select
Start
to begin dumping- This can take a very long time, we encourage you to dump one game at first
- Once finished, repeat Step 1 to dump your next game or turn off your Wii U and connect your SD card or USB storage device to your computer
Now that you have got your dumps, you can proceed to the next step which takes you through how to install your games in Cemu.