Powering Wisblock from battery wont boot

Hi all, we had this problem with the very first bootloader version, but since April this year it is fixed with a new bootloader.

Can you check what bootloader version is on your RAK4631 modules. It should be March 31st 2021. If it is older you need to update the bootloader.

Instructions how to check the bootloader version and how to update the bootloader can be found here: Updated bootloader for RAK4631