hola,
en el primer link pone esto:
Remove CDFS partition from a USB thumb drive
Some USB sticks comes with a read-only partition called CDFS. Remove it can give more usable disk space.
1. You need to check the chip model of your USB stick using this tool: ChipGenius
a. Download ChipGenius
b. Connect you USB stick
c. Run ChipGenius and check the information
d. take down the information of your dirve, for example, the chip model of my usb drive is MTX6208.
2. Then you will then need to find the partition tool for you chip model.
a. You can find and download the tool from this web site:
www.51stor.net Note: make sure the tool you download matches your chip model.
b. Run the tool. You should be able to remove the CDFS partition (by re-initializing the disk).
Note: all the existing data will be lost, so remember backup the data before do this.
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