@ -520,10 +520,20 @@ You can also start a new Torrent-Download and replace the old blockchain with a
You can backup your channel and wallet data, make a complete fresh RaspiBlitz and after that one is setup you replace the LND data with your old one. Also make sure to check again on your power supply - it needs to deliver equal or more then 3A and should deliver a stable current. If you think your HDD or SD card is degrading - maybe this is a good time to replace. See for details the FAQ question: [How can I recover my coins from a failing RaspiBlitz?](FAQ.md#how-can-i-recover-my-coins-from-a-failing-raspiblitz)*
## Can I run the RaspiBlitz without a display/LCD?
The display is one of the nice features of the RaspiBlitz but the raspberry can un without it. Maybe not all add-on feature could be used to the full extend, but you can get started without the LCD and even plug it on later.
Normally with the LCD its easy to see your local IP changes and you can get started quickly. Without it needs a bit more digging thru your network - you can find a good tutorial on that on the RaspiBolt tutorial (origin of RaspiBlitz):
*Please Note: Without a LCD-Hat you cannot simply use the HDMI as alternative, because screen signal is routed to the GPIO pins. On how to switch that back manually - see [waveshare documentation](https://www.waveshare.com/wiki/3.5inch_RPi_LCD_(A)).*
## I have two RaspiBlitz in my network - can they both be public?
Yes but you need to change at least on one RaspiBlitz the port number (for example to 9736) on one of your RaspiBlitzes - see how to change a port below. Then you can forward both ports from your home internet router to the matching RaspiBlitzes.
## How to change the public port LND/Lightning node is running on?
There is a experimental script you can call from the terminal that will make all changes for you ... see details here: https://github.com/rootzoll/raspiblitz/issues/100#issuecomment-466722712
There is a experimental script you can call from the terminal that will make all changes for you ... see details here: https://github.com/rootzoll/raspiblitz/issues/100#issuecomment-466722712