# Flashing custom image to new WP7607-1 Modules don't work

**URL:** https://forum.legato.io/t/flashing-custom-image-to-new-wp7607-1-modules-dont-work/6086
**Category:** Legato Linux distribution (Yocto project)
**Created:** [February 4, 2022, 2:58pm UTC](https://forum.legato.io/t/flashing-custom-image-to-new-wp7607-1-modules-dont-work/6086 "2022-02-04T14:58:38Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)
#### Post date: [February 4, 2022, 5:00pm UTC](https://forum.legato.io/t/flashing-custom-image-to-new-wp7607-1-modules-dont-work/6086/4 "2022-02-04T17:00:22Z")

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Where did you download the yocto source?  
Is it in here?

[https://source.sierrawireless.com/resources/airprime/software/wp76xx/wp76xx-firmware-release-16,-d-,0,-d-,1-components/#sthash.KFGymtuk.Ubj4CQ5W.dpbs](https://source.sierrawireless.com/resources/airprime/software/wp76xx/wp76xx-firmware-release-16,-d-,0,-d-,1-components/#sthash.KFGymtuk.Ubj4CQ5W.dpbs)

the ABPL is in appsboot\_wp76xx.cwe.  
Here says you can combine it by yourself:

> [@WP76xx R8 Yocto linux does not build correctly](https://forum.legato.io/t/wp76xx-r8-yocto-linux-does-not-build-correctly/3156/10):
>
> Right. That is what I saw. It would give an error the first time, then if you did ‘make image’ a second time without doing anything else, it would complete. However, it is not the same size as the image downloaded from Sierra’s Source. It is missing the boot image, but the total size of the other images aren’t the same. about 4K less, which is disturbing. Can you verify the images you got, and why isn’t the bootloader in there?

BTW, what is the uart output for this one?

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Now fetch the source from 16.0.1, unpack, cd, call ‘make’  
(Without any changes)

We get a new custom Yocto image 16.0.1.

This is woking on old WP-Modules… but not on the new one.

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