Hello everyone. I am looking for advice on how to unbrick my Switch after updating the stock firmware.
My Switch is unpatched and I can enter RCM using a jig. I was on firmware 10.1.0 before the update. I followed the NH Switch Guide on a previously unhacked Switch, including dumping my keys and creating backups. However, once I tried to launch Atmosphere, I'd only get thrown back into RCM.
My thought process at the time was that my firmware needed to be newer to match up with the latest Atmosphere. So I booted back into the stock firmware and updated. The dialog said it was successful and that the Switch would reboot, but it did not turn back on. So somehow, my Switch got bricked doing the official update. I tried the standard things such as holding the power button for 15sec (and in combination with the volume buttons), but no luck. In case it is somehow relevant, I should mention that my Switch does not have a working game card reader.
Getting back into Hekate, I tried the three launch options (Atmosphere emuNAND, Atmosphere sysNAND, and stock), but all blackscreened. Inside Hekate, I saw that the burnt fuse count had increased from 13 to 18 (firmware 16.0.0+), meaning that the update had been applied to a point.
Next I tried a guide entitled "Rectify Boot Errors" by Switchway to try to restore the system, but this did not work. I next tried to restore my backup (from before the update), but the Switch still does not boot. I stopped at this point as it was clear that I am out of my depth and might cause even further damage, which why I am turning to you folks.
I'd like to get back to a point where I can boot the stock firmware. Any help would be appreciated!