i want unistall arm9loader on a 2DS 11.0 but i have to downgrade to 9.2.... can i do it without dsi game only using Plaisisupdater? i try but i only see hax init and i tried about 50 times in 2 days...
I want do it bc i want return the 2DS where i bought it bc i only bought it for downgrade another 3DS on 11.0 with it.
If you are using A9LH and luma you should be able to downgrade 11.0 without any additional exloits. Simply install PlaiSysUpdater as a CIA to the home menu, place the 9.2 system update files into a folder called "updates" on the root of your SD, and then run plaisysupdater and choose the 9.2 downgrade option. As long as you are running CFW 11.0 is perfectly able to downgrade without using the DSiWare or hardmod.
Once you downgrade to 9.2, you can run safeA9LHinstaller as a arm9 payload (the .bin that boots before the home menu) and then use the uninstall option. safeA9LHinstaller can uninstall A9LH, but it will lock this option unless you are on an exploitable firmware (meaning you can't use it to uninstall unless you downgrade).
So in simple steps:
1. install PlaiSysUpdater.cia to your sysNAND using FBI
2. Download and place 9.2.0 update files to your SD, should be in /updates on the SD root, which in turn should contain a bunch of CIA files
3. Run Decrypt9/Hourglass9 and make a backup of your sysNAND
4. Boot to sysNAND, open PlaiSysUpdater, which is now installed to the home menu, and select the option to downgrade to 9.2
5. Allow process to finish, and for 3ds to reboot.
6. If any errors occur during downgrade, restore sysNAND backup and try again.
7. Once you successfully downgrade, open safeA9LHinstaller as an arm9loaderhax payload
8. Select the uninstall option
9. Profit?
10. Once this finishes (should be really quick) you will no longer have A9LH and will be on 9.2 firmware.
Edit:
You should only get HAX INIT issues if you are trying to launch from homebrew launcher.