So as you all may know a new arm9 exploit came out that you could use to downgrade to 2.1 and install a9lh.Sadly Quite a few people have been doing some stuff on 2.1 which would brick them and then creating a post witch has been leading too multiple posts on gbatemp of the same issues so I decided to make a post on what to NOT do and how to fix it if you did it
1)Don't follow a video guide or written guide witch isn't 3ds.guide not following 3ds guide could lead to bricks just look at that one video guide witch had a otp in it that bricked many 3ds's.If you did follow that one guide with the otp you could do a hardmod to unbrick.
2)Deleting your nand backup or not doing a nand backup. This is how most people or bricking by then doing the next thing I will mention. This could easily be fixed by doing a nand backup before 2.1 ctrnand transfer and if you already started the ctrnand transfer or did the ctrnand transfer then just continue 3ds.guide intill you get to section IV of installing a9lh and do this ctrnand transfer https://3ds.guide/9.2.0-ctrtransfer and then start backup from section V of installing a9lh of 3ds.guide and finish the guide and then you should make a nand backup using hourglass incase something bad happens in the future.
3)Updating while on 2.1 . So people have been updating through a cart or system settings because either because they no longer want a9lh or no longer have a nand backup. If you no longer have a nand backup and haven't updated from 2.1 follow my instructions above and if you want to uninstall a9lh then rerun safe a9lh installer through a payload or replacing your luma's arm9loaderhax.bin and press the uninstall button. If you already did this and don't brick try acesing decrypt 9 and do a nand restore and if you dont have a nand backup do this but accessing the applications through homebrew https://3ds.guide/9.2.0-ctrtransfer and if you bricked and have a nand backup then you can do a hardmod.
4)Closing a new3dsxl lid on putting it on sleep mode. Not many people have been doing this but still worth mentioning. This is why you should proceed without taking brakes. Their is no way to fix this!!!
5)Formating a 2ds. Barley anybody has done this but still worth mentioning. The only way to fix this is a hardmod witch requires a nand backup.
With these warnings and fixes in mind enjoy installing a9lh
1)Don't follow a video guide or written guide witch isn't 3ds.guide not following 3ds guide could lead to bricks just look at that one video guide witch had a otp in it that bricked many 3ds's.If you did follow that one guide with the otp you could do a hardmod to unbrick.
2)Deleting your nand backup or not doing a nand backup. This is how most people or bricking by then doing the next thing I will mention. This could easily be fixed by doing a nand backup before 2.1 ctrnand transfer and if you already started the ctrnand transfer or did the ctrnand transfer then just continue 3ds.guide intill you get to section IV of installing a9lh and do this ctrnand transfer https://3ds.guide/9.2.0-ctrtransfer and then start backup from section V of installing a9lh of 3ds.guide and finish the guide and then you should make a nand backup using hourglass incase something bad happens in the future.
3)Updating while on 2.1 . So people have been updating through a cart or system settings because either because they no longer want a9lh or no longer have a nand backup. If you no longer have a nand backup and haven't updated from 2.1 follow my instructions above and if you want to uninstall a9lh then rerun safe a9lh installer through a payload or replacing your luma's arm9loaderhax.bin and press the uninstall button. If you already did this and don't brick try acesing decrypt 9 and do a nand restore and if you dont have a nand backup do this but accessing the applications through homebrew https://3ds.guide/9.2.0-ctrtransfer and if you bricked and have a nand backup then you can do a hardmod.
4)Closing a new3dsxl lid on putting it on sleep mode. Not many people have been doing this but still worth mentioning. This is why you should proceed without taking brakes. Their is no way to fix this!!!
5)Formating a 2ds. Barley anybody has done this but still worth mentioning. The only way to fix this is a hardmod witch requires a nand backup.
With these warnings and fixes in mind enjoy installing a9lh
Last edited by gamemasteru03,