(so in essence its kinda still is an issue for non Emunand users only on Crash/power loss) on exiting AGB_FIRM to 3DS Mode, it Does this(this is why pressing Home-Exit Works w/o fail, but Not when powers lost by Battery fail (no power) Fail to wake up (not an issue for users for the obvious reasons) Crash (Game Compatibility or Issue w/ Romhack) the conditions that GBA VC Save is lost shouldn't Occur *Normally* (if your using Emunand you should boot to Sysnand on exit rather than going right back to Emunand. if powers lost/Crash/Lockup before it Flushes Save to NAND, PFFT.
primarily because on Firm Exit AGB_FIRM (which is GBA Mode) Writes active save memory to NAND. Click to was heavily prevlent before Luma 7, before Firm Reboot s were really handled much better, and a Major issue (and i belive it may *Still be* for Emunand users.