Stay with me! It’s a long post, but as I’m not sure what could have caused my problem, I’m trying to list everything in detail. I have already downgraded successfully an N3DS XL one month ago from 9.6.0-24U following Plailect’s guide. And now I encounter some problems downgrading an O3DS from firmware 10.3.0-6U (it was 9.x, but was updated with the Monster Hunter Generation cartridge). I’m following the new guide from Plailect: 1. Bought a OOT3D and used my N3DS to install the haxxed savegame (tried getting it to work for at least 4 hours with the sploit installer/manual injection and files for version 10.3.0-6U, which didn’t work at all. Tried the installer one more time with 10.4.0-6U, and from now on I’m able to boot into HBL. (that’s the first thing I don’t understand …) 2. Installed menuhax with success. 3. Started preparing for downgrading to 9.2 a. Formatted the O3DS system b. Changed the SD card to an EVO Plus Advanced Performance 32 GB Formatted it with diskpart as MBRc. Copied all files over and booted back in HBL4. Checked files with SafeSysUpdater 5. Started with sysDowngrader but always stuck on: “Checking for am:u… Did not get am:u handle! Attempting svchax… Initted svchax… Initted services… Checking for am:u… Did not get amu: handle, please reboot” I tried this for AT LEAST 100 times, even changed the sysDowngrader.3dsx into boot.3dsx to start quicker into sysDowngrader. (Did some research and found people complaining about 5-30 attempts ... Can it really take 100+ tries?) 6. Tried PlaiSysUpdater v05 and v04, both stuck on boot at the yellow screen. (I did read this open issue https://github.com/Plailect/PlaiSysUpdater/issues/10) Also starting apps from the ‘starter kit’ results in a yellow screen (I read somewhere starting apps, could help clearing up the cache (?). d. mgba = yellow screen e. eshop = yellow screen f. prboom = yellow screen Installed ftbrony which works, but still same issues with PlaiSysUpdater and SysDowngrader. 7. SafeSysUpdater stucks on Hax init … (tried it maybe 10 times) Things I also already tried: - Using the standard O3DS SD card formatted as FAT32 cluster size 32K = same issue as descripted above - Installed menuhax couple of times = same issue as descripted above My thoughts: 8. Is there a way to upgrade to 10.4? With this I could get rid of the dummy browser. Would it be easier to downgrade from that version? 9. Should I just keep trying with sysDowngrader or SafeSysUpdater? So here I’m hoping of some input, maybe I really overlooked something trivial. ANY help is appreciated.