# Raspberry Pi CM3+ Error message
**URL:** https://hub.mender.io/t/raspberry-pi-cm3-error-message/749
**Category:** General Discussions
**Created:** [June 25, 2019, 7:20am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749 "2019-06-25T07:20:45Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@PFGO](https://hub.mender.io/u/PFGO)
#### Post date: [June 25, 2019, 7:20am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/1 "2019-06-25T07:20:45Z")
Hi Community,
I use the cm3+ modul i get following error:
DRAM: 948 MiB
RPI: Board rev 0x10 outside known range
RPI Unknown model (0xa02100)
MMC: mmc@7e202000: 0, sdhci@7e300000: 1
Loading Environment from FAT… WARNING at drivers/mmc/bcm2835\_sdhost.c:408/bcm2835\_send\_command()!
WARNING at drivers/mmc/bcm2835\_sdhost.c:408/bcm2835\_send\_command()!
\*\*\* Warning - bad CRC, using default environment
Is the CM3+ Modul already supported?
---
### Author:  [@mirzak](https://hub.mender.io/u/mirzak)
#### Post date: [June 25, 2019, 7:22am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/2 "2019-06-25T07:22:02Z")
How did you build this image?
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### Author:  [@PFGO](https://hub.mender.io/u/PFGO)
#### Post date: [June 25, 2019, 7:23am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/3 "2019-06-25T07:23:37Z")
This way:
```auto
DEVICE_TYPE="raspberrypi3"
ARTIFACT_NAME="t-image-mender2.0-1.0"
MENDER_DISK_IMAGE="T-plc-md2.0-1.0.sdimg"
RAW_DISK_IMAGE="input/t-plc-golden-md2.0-1.0.img"
DEMO_HOST_IP="192.168.50.117"
./docker-mender-convert from-raw-disk-image --raw-disk-image $RAW_DISK_IMAGE --mender-disk-image $MENDER_DISK_IMAGE --device-type $DEVICE_TYPE --artifact-name $ARTIFACT_NAME --bootloader-toolchain arm-buildroot-linux-gnueabihf --storage-total-size-mb 7448 --demo-host-ip $DEMO_HOST_IP
```
Edit: @mirzak: apply syntax highlighting
---
### Author:  [@mirzak](https://hub.mender.io/u/mirzak)
#### Post date: [June 25, 2019, 7:28am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/4 "2019-06-25T07:28:14Z")
It seems that CM3+ is not supported in the U-boot version we are currently using in mender-convert, which is 2018.07.
It is lacking this commit,
> **[rpi: add Compute Module 3+ (7e2ae620) · Commits · U-Boot / U-Boot](https://gitlab.denx.de/u-boot/u-boot/commit/7e2ae620e15ef578b8f2812ec21ec07fae6c1e2f)**
>
> Add Raspberry Pi Compute Module 3+ to list of models, the revision code is 0x10 according to the list on raspberrypi.org. v2: Use the same dtb name as CM3 as...
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### Author:  [@PFGO](https://hub.mender.io/u/PFGO)
#### Post date: [June 25, 2019, 7:31am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/5 "2019-06-25T07:31:09Z")
Hi mirzak,
thank you for the answer - so there is currently no fast way to get this solved?
Is it possible to fix this with commercial support?
Thanks
---
### Author:  [@mirzak](https://hub.mender.io/u/mirzak)
#### Post date: [June 25, 2019, 7:34am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/6 "2019-06-25T07:34:09Z")
> thank you for the answer - so there is currently no fast way to get this solved?
One either has to update U-boot or backport the necessary patches.
> Is it possible to fix this with commercial support?
This is definitely a possibility.
---
### Author:  [@PFGO](https://hub.mender.io/u/PFGO)
#### Post date: [June 25, 2019, 7:46am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/7 "2019-06-25T07:46:11Z")
Ok, I sent you a mail.
---
### Author:  [@blackdevice](https://hub.mender.io/u/blackdevice)
#### Post date: [October 16, 2019, 7:53am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/8 "2019-10-16T07:53:14Z")
Hello, I would like to use cm3 + to use mender-convert in a buster image, has this topic of this thread been corrected, or is it still necessary to modify it on the board?
---
### Author:  [@mirzak](https://hub.mender.io/u/mirzak)
#### Post date: [October 16, 2019, 9:03am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/9 "2019-10-16T09:03:49Z")
`mender-convert` is still using U-Boot 2018.07 which does not contain the necessary parts for CM3+ support.
So the comments still stand.
---
### Author:  [@blackdevice](https://hub.mender.io/u/blackdevice)
#### Post date: [October 16, 2019, 9:06am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/10 "2019-10-16T09:06:46Z")
if img is generated from yocto could it work? if the meta of mender is included?
we have mender-server 2.1 hosted locally.
What branch do you recommend for cm3 + to create yocto recipe?
Thank you very much for your help, and congratulations for the project.
---
### Author:  [@mirzak](https://hub.mender.io/u/mirzak)
#### Post date: [October 16, 2019, 9:10am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/11 "2019-10-16T09:10:36Z")
I think you would need to use the `warrior` branch to support CM3+.
Try the steps described here [Raspberry Pi Compute Module 3](https://hub.mender.io/t/raspberry-pi-compute-module-3/110), but set `BRANCH="warrior"` instead of `sumo` which is currently described in the post.
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### Author:  [@blackdevice](https://hub.mender.io/u/blackdevice)
#### Post date: [October 16, 2019, 9:58am UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/12 "2019-10-16T09:58:42Z")
Ok!, thanks for your help mirzak 🙂
I try it.
---
### Author:  [@mirzak](https://hub.mender.io/u/mirzak)
#### Post date: [January 29, 2020, 6:22pm UTC](https://hub.mender.io/t/raspberry-pi-cm3-error-message/749/13 "2020-01-29T18:22:16Z")
The upcoming release of mender-convert is using U-Boot version 2019.01 and this should have been resolved,
Instructions should be identical as [Raspberry Pi 3 Model B/B+ Raspbian](https://hub.mender.io/t/raspberry-pi-3-model-b-b-raspbian/140)