7" LCD No display

I have 2 mini2440 boards, a 3.5" lcd and a 7" lcd. The 3.5" lcd works on
both boards, and the 7" innolux lcd displays a noisy white screen on both
boards. What do I do to get the 7" lcd working?

Thanks!

Hi,

I'm new to this, but it sounds like you have the 3.5" images in flash on
both boards. You will have to flash the 7" image into NAND before the lcd
will work.

For WinCE it is called something like NK_A70

Thanks,
Errol

You need to change the image in both linux or WindowsCE cases.

I'm running Linux with Qtopia. So which image for that? 

And where do I find the best instructions to load new image? 

As you can tell, I'm very new at this...

you need to change the kernel images , try the zImage_A70 one.

> And where do I find the best instructions to load new image? 

Download instructions for DNW:
http://www.friendlyarm.net/dl.php?file=download.pdf

Check jumper J2 on mini2440 board. It must by in 5V position for A70 LCD.
Regards!

Thank you all. I will give this a try.

I have almost the same problem with 7 inch LCD. I followed this tutorial to
include build a zImage.

http://members.cox.net/ebrombaugh1/embedded/mini2440/index.html

I've used the config_mini2440_a70 config file, enabled the gpio and spi's.
Then in boot menu, i downloaded the new kernel file, zImage. After when i
boot from NAND, there are only yellow, red, green lines on LCD. What can i
do? 

J2 jumper is on right place, because it was working before.

Thanks