the presence or absence of the modchip has no effect on the #003 error. the error is echoed from the NAND flash of Wii due to an official 4.2u/4.3u update to a Korean-region-changed console.. once cIOS70/cIOS80 be installed, the error will be fixed and ur bricked Wii be alive, again.
how can i know which wii dvd-drive can function in this case?
-- either one of the "old" DMS~D2E versions dvd-rom with dual ICs on the electronic board is definitely capable to read dvd-r. plz check the picture below; for ref.
bcoz i have 4-5 friends they have wii, i can borrow their wii, and assemble their dvd-driver to repair my one.
-- Wii's dated 2008~2009 are most likely equipped with DMS~D2E dvd-roms. Borrow them. Using a Wasabi-DX modchip with one of these dvd-roms, i can tell 99.9% chance to fix ur #003 4.2u/4.3u !
Put the cloned dvd in their wii and see if it can play the game or?
--rip a game from ur original Wii disc and burn the ISO with ImgBurn at 2x speed. Test it, then. Normally, u'll see the game picture at the Disc Channel "as soon as the disc is loaded successfully" ; no matter the ISO is playable or not.