FW:21.1.0
The games have never worked, even those downloaded from the Nintendo store and installed in the internal memory give me an error. I don't know if they worked before because I bought the Switch used a week ago XD
But you can run the exploit through TegraRCM? Since you're new to this I don't know what you know or don't know so I have to make sure 1. you actually have a softmoddedable switch 2. you've done everything right like added atmosphere folder etc....
You didn't say any of this before and I know you're new at this it's not really you're fault but when someone needs help we assume they're not totally new and have a basic understanding of what they're doing. Right now you probably have none. Your situation is probably different than the ops most of us that post here have had hackable switchs for a long time. You should have at least said you just got the Switch but that's alright.
Did the seller tell you your switch was moddable and did your seller tell you there were pirated games on there? You do know if you have a modded switch you cant just add legit games there is a way to have a dual system one side for legit games to go online on the store the other side for pirated games, but they can't be launched at the same time.
This is more complicated now than it was before because you may not even know what you're doing and again it's not your fault but you have to do everything correctly for it to work and you have to have a moddeable switch in the first place which you may not.
You may even be assuming all switchs can be easily hacked, that is not the case at all. What were you told or did you just buy a switch and trying to play pirated games? It simply doesn't work that way.
Just from reading what you've posted you have to have a softmoddable switch or modchipped one. I would recommend following this guide
https://switch.hacks.guide/
But if you want any more help on gbatemp you have to tell us exactly what you have done yourself with the switch since you've gotten it. Have you setup TegraRCM and ran the exploit or did you just turn it on? Unless you have a modchip it won't just boot and be able to play pirated games you have to softmod it every time you boot it. There's so much info that we need from you that we don't have right now.
This is not a simple situation it's more complicated when a seller sells someone a hackable switch that doesn't know what they're doing. I don't know how much the seller tried to explain to you, if anything at all but there's a lot that goes into this that you're going to have to learn it's far from impossible but there's a learning process to hack your switch (unless it came with a modchip? See I have no idea what hack you have) and be able to add games is not straight forward and if you want legit games you have to have an emunand and a sysnand dual boot switch but your Switch is probably banned already I'm guessing and then you won't be able to buy games or play online you can only play pirated games.
Just reply with as much information as you can. You said you've applied the patches but have you booted into atmosphere at all? You have to use atmosphere to play pirated games period. But if you have an actual modchip installed into it then you don't have to run any exploit it's just able to be hacked from the moment you boot it, no modchip then it requires exploit every time you boot.