Update finalizing settup page (and add troubleshooting section) to avoid unnecessary CTR transfers on section II (#1850)

* Update finalizing-setup.txt

* Update finalizing-setup.txt

* Update finalizing-setup.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update finalizing-setup.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update finalizing-setup.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Create troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

Work in progress save

* Update finalizing-setup.txt

* Update finalizing-setup.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

* Update troubleshooting.txt

change how the buttons are said to open safe mode to more match the rest of the guide 

and reword the phrasing of "and following the prompts" to -----> "and following the on screen prompts". some people might get caught up on that so i changed it to be more clear

* Update troubleshooting.txt

* Update troubleshooting.txt

_pages/en_US/finalizing-setup.txt

@@ -67,7 +67,7 @@ If, before following this guide, you already had an EmuNAND setup and would like
   + Updates while using B9S + Luma (what you have) are safe
   + The updater may display a message saying "Your system is up to date" instead of updating. This is normal if you are already up to date; continue with the next section
   + If this gives you an error, set your DNS settings to "auto"
-  + If this still gives you an error, [follow CTRTransfer](ctrtransfer), then try updating again
+  + If this still gives you an error, [follow this troubleshooting guide](troubleshooting#system-update-error-after-installing-cfw)
 
 #### Section III - Homebrew Launcher
 

_pages/en_US/troubleshooting.txt

@@ -156,3 +156,17 @@ Browser based exploits (such as browserhax or 2xrsa) are often unstable and cras
 1. Your device is bricked
 1. You will need to get an ntrboot-comptible flashcart (one of the ones on [this list](ntrboot) or a [hardmod](https://gbatemp.net/threads/414498/), or repair / replace your device
 1. For support (in English), join [Nintendo Homebrew on Discord](https://discord.gg/MWxPgEp)
+
+## System update error after installing CFW
+
+ Occasionally, updates may fail to install after installing CFW. To fix this, reboot your device after each step of this section, then try updating again.
+
+1. Set your DNS settings to "Auto"
+1. Move closer to your WiFi router
+1. Update from Safe Mode by turning off the console, holding (Left Shoulder) + (Right Shoulder) + (D-Pad Up) + (A) on boot, and following the on-screen prompts
+1. Delete your WiFi connection, then reconnect to your WiFi again
+1. Reboot your WiFi router
+1. Connect to a different WiFi connection, like a mobile hotspot
+1. Nintendo servers may be down; Try again later
+1. If you still get an error, [follow CTRTransfer](ctrtransfer), then try again
+1. For support (in English), join [Nintendo Homebrew on Discord](https://discord.gg/MWxPgEp)