1. Odroid-C2 Rev 0.2 20160226
2. I will not do that. I only had such a Error with a corrupt download or a broken micro sd card reader or sd card. My test sd card have 32Gb and emmc 64GB.
You can try Coreelec CoreELEC - Legacy Builds 9.2.7 (Stable) selekt device... and for the libwidevine.so fix update with [ARM] Add suport for libwidevine.so >= 4.10.2252.0 by Portisch · Pull Request #287 · CoreELEC/CoreELEC · GitHub