Unbricking without opening

Generally the methods for unbicking a Gen 1 (v4.x firmware) single bay My Cloud are different than the methods used for the Gen 2 (2.x firmware) single bay My Cloud units.

Alright. Could you then maybe suggest what I have to do instead?
Thx in advance!

Use the forum search feature to see if anyone has successfully used a USB drive to boot a Gen 1 single bay My Cloud.

User Fox_exe apparently has several possible ways to unbrick a Gen 1 single bay My Cloud:

https://drive.google.com/drive/folders/0B_6OlQ_H0PxVZTBtM3EyRVhDVms

Or just do what many others with Gen 1 devices have done. Remove the hard drive from the enclosure and follow one of the various unbricking procedures for the Gen 1 single bay My Cloud units.