R4I-B9S， has flashed ntrboothax, can not play ds games

Now VISA card is not available temporarily, but Master card is available.

Here is our Amazon store link: https://www.amazon.com/shops/nds-card

Here is our aliexpress store link:  https://www.aliexpress.com/store/1102831260

1. R4i-B9S card

2. micro sd card reader

3. A magnet

B9S has pre-flashed ntrboot, it can not play DS games.

• Work on new 3DS, Old 3DS, New 2DS, and old 2DS in all regions.
• Support popular Luma3DS Custom firmware.
• Support SD card up to 128GB.

What can I do with Custom Firmware?
• Play all game cards and eShop games, regardless of region
• Customize your HOME Menu with user-created themes,badges,and splash screens
• Use "ROM hacks" for games that you own
• Take game-play and application screenshots
• Backup,edit,and restore saves for many games
• Play games for older systems with various emulators, using RetroArch or other standalone emulators. (Works best with a New Nintendo 3DS)
• Install homebrew titles to your system, and have them appear on your HOMEMenu
• Dump your game cards to a format you can install, and play them without needing the card
• New 3DS or New 2DS only: stream live gameplay to your PC wirelessly with NTR CFW
• Run many old Nintendo DS flash cars that were blocked long ago or never worked on Nintendo 3DS
• Safely update to the latest system version without fear of losing access to homebrew