Hardware unninstalled luma 3ds now 2ds screen still streched and it still thinks its a 3ds.

[diablereine]

also i dont have a nand backup from when it was normal. yes im this stupid, sorry guys
also i previously bricked it with the stuck at 3d slider check cause i was stupid enough to format the system
i really just have no idea of what im doing thats why ive messed up so bad, i thought i was following the tutorials correctly but.. guess not
so i just unninstalled everything cause i want to start from scratch because i really dont know at what part of the installation i was and didnt know what to do to follow up so i just went straight ahead and unninstalled everything. but, as i said, my 2ds's screen is still streched and it still thinks its a 3ds
sorry for being this messed up but can anyone help me? also sorry for my communication skills

 

[Quantumcat]

What firmware are you on? From the sounds of it, probably 2.1. Visit https://3ds.guide/get-started and choose a method (probably 2xrsa). Once you have CFW back again, use https://3ds.guide/9.2.0-ctrtransfer to get back to a firmware that will display properly.