I've tried to resolve this issue by Googling, but so far no solutions therefore here I am

I am trying to write the DietPi_OdroidC1-ARMv7-Stretch image to a Micro-SD card to use on my Odroid C1+ but I cannot.
I have tried both Etcher as well as Win32DiskImager (under Windows 10). They seem to write the image but Odroid does not boot with it. I've tried 2 different Samsung SD cards as well as a Kingston.
However, when I write the DietPi_OdroidC1-ARMv7-Jessie image it does run on my Odroid.
Please can anyone confirm that the DietPi_OdroidC1-ARMv7-Stretch image does work on their Odroid C1+
Also I noticed that DietPi_OdroidC1-ARMv7-Stretch is only 71MB compressed but DietPi_OdroidC1-ARMv7-Jessie is 137MB.
Please advise. Thank you.