Hacking Please help - Switch will not boot up after installing Atmosphere

[kantaroo]

Hi, I decided that today was the day that I was going to hack into my Switch. But I'm already falling over before getting very far!
My Switch was purchased in September 2017, and is running system version 2.2.0. It's been sitting under my bed for 2 years and had never been even connected to the internet.
I was following this guide:
https://switch.homebrew.guide/index

checked RCM and it was all working fine. I decided to use fusee-gelee as an exploit. I was able to get into RCM no problem a few times, and I backed up my NAND and BIS keys as recommended in Setp 1 here:
https://switch.homebrew.guide/hacking/fuseegelee/safetyprecautions

I also blocked my updates and telemetry with 90DNS. Then I launched Atmosphere
https://switch.homebrew.guide/hacking/fuseegelee/aftersetup

At this point things started to look a bit odd. The menu I got when I did this was very different from the original Hekate that I had used to back up my NAND and BIS keys:

1. Enter RCM on your Switch
2. Push the Hekate payload to your Switch

The previous menu looked like a slick interface, whereas the new menu looked like a command line sort of prompt, which asked me how I wanted to boot my custom firmware. I chose emuMMC I think. But then it seemed to launch into Atmosphere, and I checked that in the system version that it was running (AMS x.x.x). I also checked that I could into the Homebrew menu via the album. It all seemed fine. So I pressed the Home button on the right controller, and powered down the console.

Now I cannot power it back up at all. I tried to go into RCM again, and nothing happened. I tried to turn it on by pressing the power button, and again it seems dead.

Is there anything else anyone can think of to try to at least get the Switch to turn on?

 

[kantaroo]

OK please ignore this thread. It turns out that it needed a harder reboot - holding down the power button for about 10 seconds. Now it is booting up again and I can get into RCM.

 

[kantaroo]

One last thing - I just wanted to give a big thanks to the community here as I have learnt a huge amount by reading the many useful threads and helpful guides that you have all written.
I have now achieved all my current objectives, up to and including adding .NSP files with goldleaf. Thank you again and I hope I won't have to ask too many other noob questions!