UPDATE: I just used an SD card from my Nintendo Wii system and everything works as expected. Probably there was a problem with my card reader. Thanks TurdPooCharger for help.
Sorry, none of this helped. My 3ds keeps flashing with LED light. SD card test showed that everything is ok, and I did everything according to your instruction
I also have a blue GATEWAY card, maybe it could help me to unblock my console somehow
There was a freeze while running write operation by h2testw and right now my sd card is really broken...not sure whether it was broken from the begginning.. I'll try to recover my 3ds tomorrow with another sd card. Not sure if I want to run h2testw again...
yup, I've already used Disk Utility to reformat my card, but also encountered an issue with f3x - the utility is not starting at all on latest MacOS Mojave. Since I didn't find any other versions of this tool, I'm testing right now my card with h2testw running through wine (windows emulator)
looks like f3x is not working on macOS Mojave, I'm afraid I'll have to bootcamp my MacBook in order to check my sd card with h2testw. I'll try it tomorrow
UPDATE: Seems like h2testw works fine from wine on macOS. Testing my card right now
I've been using my old 3ds with a9lh for a long, long time(started with migrating from gateway to aureinand). I do not even remember whether I updated to luma3ds or not(assuming that yes). What I know for sure is that I didn't update it to boot9strap. So, here is a problem: Recently I've lost my...