mergehex command not found

[ps_anu]

Hi, 

i am trying to do buttonless dfu . I want to merge all hex files into one as per the document .when i enter the mergehex , i am getting mergehex command not found why ? please guide me 

i am using nRF52840 and 16 sdk

[Einar Thorsrud]

Depending on the installation it may have been added to the path automatically, but you may need to reboot or at least restart your cmd shell. If not you either call mergehex with the full path as suggested by Turbo J, or you add it to the path so that you can call mergehex.exe.