These are the standard bootloaders. Extract them to the system folder of your player.

Here is the H10 5GB UMS bootloader: h10boot_5gb_ums.zip

Here is the H10 5GB MTP bootloader: h10boot_5gb_mtp.zip

Here is the H10 20GB bootloader: h10boot_20gb.zip

These are reversed bootloaders. They load OF.mi4 by default and load H10.mi4 by holding select. If this does not make sense to you... DON'T USE IT!

Here is the H10 5GB UMS bootloader: h10boot_5gb_ums_reverseboot.zip

Here is the H10 5GB MTP bootloader: h10boot_5gb_mtp_reverseboot.zip

Here is the H10 20GB bootloader: h10boot_20gb_reverseboot.zip

Thanks to Jonno12345 for these files!