R4i Gold Team(R4ids.cn) released special patch for "Loading" stuck R4i Gold 3DS cards.
Please follow the step-by-step update guide to fix your “loading” stuck R4i Gold 3DS card.
2. Download the latest WOOD R4 firmware here.
3. Unzip the patch and copy "Patch_R4iGold3DS_xmas_NDSL.nds" onto the root of your memory card.
4. Power your NDSL on and boot up Patch_R4iGold3DS_xmas_NDSL.nds with "A" card.
5. Take "A" card out of the NDSL.
6. Re-insert your broken R4i Gold 3DS card into the NDSL.
7. Press KEY_A and the updating process will begin.
8. You should keep your NDSL powered on during the updating process(Do not turn it off).
9. If shows SUCCESS, it means you have updated your R4i Gold 3DS successfully and this card can work on DSi V1.4.3 and 3DS V2.2.0-4 and V3.0.0-5. Please refer for the step-by-step setup guide for your R4i Gold 3DS