Raspberry pi 3 rainbow screen

[hypergaming]

Hi everyone,

I recently installed an image file in a new Raspberry pi 3, with a bunch of emulators including MAME, when I turn it on, I get a rainbow screen and Emulation station never starts.

I know is not the pi because I tried another SD card, and it loads Emulation Station. I want to use my original SD card because is where I have all my games and artwork I set up originally. here is an image attach of what I see on my screen.

is there any way I can fix this rainbow screen issue and load Emulation station as before?

Thank you 

[hypergaming]

Anyone??

[yotsuya]

You literally waited four minutes to post your followup??

Just set up a new card and move the files over.

[hypergaming]

from 1:18pm to 1:53pm is not 4 minutes, is way more   but I totally understand is not a long time, I was just frustrated trying to get this thing done.

I did try burning the image on a new SD card, same image, but I et the same issue. I think it has to do with the version of Retropie, not sure.

thanks again

[ed12]

well it is not really getting to "boot", so yes look at the rev of the build

ed

[elvis]

Either

1) The image you've used is bad
2) The way you imaged the card was wrong (incomplete?)
3) The SD card itself is bad

Work you way through the troubleshooting of each.  (Retry writing the image, make sure it completes full and all writing has stopped before you remove the card, and failing that try a new card).

[nexusmtz]

I thought the rainbow could be a power problem. Does the image overclock the cpu, and have you tried a different supply?

You said you tried another sd card, but it's not clear if that was the exact same image.

[Slippyblade]

A quick Google says your power supply is probably not putting out enough juice.  Try a better supply and cord.

[hypergaming]

Thanks everyone,

It seemed it was an old version of retropie that wasn't compatible with rpi 3, I used retropie 3.8 and it worked.

   thanks again.

[nitrogen_widget]

Thanks everyone,

It seemed it was an old version of retropie that wasn't compatible with rpi 3, I used retropie 3.8 and it worked.

   thanks again.

sudo apt-get update
sudo apt-get upgrade

while the card is in your old RPI will make the install on the SD card work on the RPI3

[General_Faliure]

the rainbow screen is usually because of the power supply being not strong enough.
For a pi 3 you need a good power supply of at least 2 Amp, preferably 2.5.

[mahuti]

I've also had lockup issues (probably due to power supply issues) when adding artwork overlay files. Weird. Similar to the problem you mention.

[nitrogen_widget]

also may need to do:
sudo apt-get dist-upgrade while in rpi2 to get the card to run in rpi3.

[Blanka]

Just disable it. It has nothing to do with power issues, it is just a boot logo. You can at the same time disable smooth OpenGL scaling. If you want blocky pixels, it will interfere. If you disable smooth scaling, you will see the rainbow image is just 4 pixels, like the Windows Logo in 4 colours.

Code: [Select]

sudo nano /boot/config.txt

comment:
# dtparam=audio=on

add:

disable_splash=1
disable_audio_dither=1
scaling_kernel=8

sudo nano /boot/cmdline.txt
dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty3 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet loglevel=3 consoleblank=0 vt.global_cursor_default=0 logo.nologo

sudo nano /etc/modules

comment out both snd-bcm2835 to #snd-bcm2835

sudo nano /lib/modprobe.d/aliases.conf

comment out to prevent conflict getting sound device index number
# options snd-usb-audio index=-2
The other stuff deals with the USB audio interface (you will need that too, see other topic!)