I'm hoping some kind soul can help me with a time sensitive issue here.
I hacked a Switch for a non-tech-savvy mate a year ago. He lives in a different country but visits about once a year. He mentioned his Switch was not turning on, essentially dead, so I told him to bring it with him on his next trip, which is now. Met up with him last night and sure enough, the device doesn't seem to turn on, and doesn't respond to dongle and jig either, so I brought it home with me last night. Plugged it into my PC this morning and my PC recognised that a device was connected by USB, so I fired up TegraRCMGUI, injected the payload, and was able to get the Switch to boot.
I wanted to get his Switch as up to date as possible, so I launched All In One updater, which I don't think I've used before, but put on there so that in theory he could update things himself. I wasn't sure what order to do things in, so I pulled up a video, unfortunately I wasn't paying as much attention as I should have, and I think I may have hit the wrong prompt at least once. I realise I should have used a guide rather than a video, but didn't realise that the guide supported AIO Updater. Anyhow, there's a good chance that I answered Yes to all of the below questions:
I was able to successfully (in theory) update Atmosphere, and then went to update the firmware. I believe that downloaded successfully, launched daybreak and I answered that I wanted to preserve settings, and install exfat and fat32 drivers, and when I hit reboot, that's where the problems began.
I received the message that many people have had, "A fatal error occurred when running fusee. Unable to identify Package", googled it and found myself on page 1828 of this thread, but am still lost. I can still launch Hekate via PC, and can access the USB Tools to add/remove stuff to the microSD, but I can not get the Switch to successfully boot to either Atmosphere or OFW. Atmosphere gives me the error message at the start of this paragraph. Booting to stock gives the error "no mandatory secmon or warmboot provided, failed to launch HOS, press any key...". This is likely a result of me trying a few different things to fix the issue such as installing Atmosphere manually via USB, updating hekate etc. Really trying to avoid starting over as there are a few games and a shop on the SD card that I'd prefer not to have to redownload. And it's time sensitive as my friend leaves tomorrow evening so I have less than 24 hours to try and solve the problem.
I am more than grateful for any assistance.