Continuous flashing red

Hi @mippen,

If you replaced the flash module, follow the steps in this post, but skip the st-link / bootloader / patch programmer stuff, just do the keys / factory reset:

Thanks,
David

The keys should be fine as the core connects to the cloud?
I replaced the firmware on both locations but it is something fishy going on.
It works fine as long as I do not download an app.

One thing I do not understand,
when doing:
write it to your OTA region and backup regions:

write it to your OTA region and backup regions:
dfu-util -d 1d50:607f -a 1 -s 0x00040000 -v -D core-firmware.bin
dfu-util -d 1d50:607f -a 1 -s 0x00060000 -v -D core-firmware.bin

read it back to disk:
dfu-util -d 1d50:607f -a 1 -s 0x00040000:68216 -v -U firmware_backup.bin
dfu-util -d 1d50:607f -a 1 -s 0x00060000:68216 -v -U firmware_ota.bin

The read files is almost blank.
Isn't these files on both MCU and Memory?

Hi @mippen,

If you’re not able to read back from these regions, it might indicate a problem with how the flash module you replaced is connected to your core. What module did you replace it with?

Using SST25VF040B-80-4I-S2AE
Placed according to silkscreen on PCB