I'm searching for backup eShop content under version 4.x. And I found this in tutorial section:How to Dump and Backup eShop Games and DLC Luckily I found this post is extremely useful and now I have successfully finished the process of download->decrypt->make.3ds/.cia of those free 3ds games that provided by Nintendo 3DS Ambassadors(JPN) plan as gifts, including 3Dクラシックス エキサイトバイク(3D Classics Excite Bike,CTR-N-SAEJ) which installs and works flawlessly on my other 3ds systems now. But seems that the makerom process cannot deal with the GBA Virtual Console content properly.In the .cia and .3ds packing process,it report the error message "[CIA ERROR] Save data size must be aligned to 64K." in making of .cia and "[CCI ERROR] Save data size must be aligned to 64K." in making of .3ds. The .3ds file and .cia file generated successfully,though.In Gateway3DS select menu the icon is shown normally and these game can be selected into the slot.And the 3D Virtual Console GBA Banner of the specific game thus shows on upper screen w/o problem.But trying to launch it will cause a black screen halt(Home button won't bring it back to dash screen),even the 3ds sonar logo won't show before launching these .3ds. Any one know how to pack the GBA VC properly?I think these Ambassadors plan content is the only way for us to access official GBA emulator.A proper way to make it into working .3ds/.cia would be appreciated. Thank you very much.