# Node-red ui load fails on raspberry pi 1
**URL:** https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915
**Category:** General
**Created:** [19 June 2018 09:47 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915 "2018-06-19T09:47:35Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@ThanosMel](https://discourse.nodered.org/u/ThanosMel)
#### Post date: [19 June 2018 09:47 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/1 "2018-06-19T09:47:35Z")
Hello, i have some flows written on windows 10 machine and i want to run those flows on my raspberry pi 1 model b+. Before i run those flows on the rp1 i have to make some changes(e.g change the path in file node). When i try to open node-red ui on the raspberry with firefox (as suggested) i am getting vendor.js not responding or busy error. Sometimes i skip the error and its working but still rp1 is extremely slow and firefox crashes. Can i use an rp3 to make the changes then swap the sd card to rp1 ? (Note: the final flows will run on the rp1)
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [19 June 2018 10:02 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/2 "2018-06-19T10:02:05Z")
Have you updated node-red on the pi using the technique in
[https://nodered.org/docs/hardware/raspberrypi](https://nodered.org/docs/hardware/raspberrypi)
If yes then post the output from `node-red-log` when you restart node red.
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### Author:  [@ukmoose](https://discourse.nodered.org/u/ukmoose)
#### Post date: [19 June 2018 10:05 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/3 "2018-06-19T10:05:02Z")
To answer the supplemental question no you can’t swap a sd card between Pi3 & a Pi1 as they use different processors.
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### Author:  [@ThanosMel](https://discourse.nodered.org/u/ThanosMel)
#### Post date: [19 June 2018 10:10 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/4 "2018-06-19T10:10:41Z")
Then how am i supposed to change the things i want from the super slow rp1 😕 . The only solution that i see is changing stuff directly from the flows.json file that i have my flows.
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### Author:  [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [19 June 2018 10:13 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/5 "2018-06-19T10:13:34Z")
Open `http://:1880/` in the web browser on your Windows 10 machine - avoid running a web browser on a Pi 1 otherwise you’ll be there all day.
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### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [19 June 2018 10:16 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/6 "2018-06-19T10:16:26Z")
You can export/import your flows…a bit of a pain but export all your flows on pi1, import them to the pi3 - make change - export from pi3 -\> import on the pi1
or how about ssh’ing from the pi3 to the pi1 - copy the flows.json (using scp) edit and put it back.
or enjoy a nice cup of coffee/tea/beer while waiting for the pi1 to respond 😁
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [19 June 2018 10:23 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/7 "2018-06-19T10:23:22Z")
> [@ThanosMel](#):
>
> Then how am i supposed to change the things i want from the super slow rp1 😕 . The only solution that i see is changing stuff directly from the flows.json file that i have my flows.
The reason it is super slow and crashing may be due to the fact you have not updated node-red to the latest as I suggested. Though certainly don't try and run the browser on pi, run that on another machine as Nick suggested.
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### Author:  [@ThanosMel](https://discourse.nodered.org/u/ThanosMel)
#### Post date: [19 June 2018 10:33 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/8 "2018-06-19T10:33:27Z")
i have updated nodered of course via the update-nodejs-and-nodered command. I ll try @knolleary solution and i ll get back to you if i have problems.
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### Author:  [@ThanosMel](https://discourse.nodered.org/u/ThanosMel)
#### Post date: [19 June 2018 10:55 UTC](https://discourse.nodered.org/t/node-red-ui-load-fails-on-raspberry-pi-1/915/9 "2018-06-19T10:55:00Z")
@knolleary solutions works. I start thinking that i am dumb for not thinking that.