Search the subforum (magnifying glass icon upper right) for “unbrick” plenty of discussions on how to unbrick a first gen or second gen single bay My Cloud, the process is different for each version.
Example of past recent discussions: https://community.wd.com/search?q=unbrick%20category%3A105%20order%3Alatest
How I replace the HDD of mycloud gen2
First gen single bay My Cloud - P/N: WDBCTLxxxxxxx- 00 , FW 04.xx.xx
Second gen single bay My Cloud - P/N: WDBCTLxxxxxxx- 10 , FW 02.xx.xx
User Fox_exe has some directions for each version that some have used to successfully install a new hard drive to a single bay My Cloud.
User Fox_exe repositories:
Main Repository: https://fox-exe.ru/WDMyCloud/
First Gen: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/
Second Gen: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen2/
First gen directions:
English: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/Replace%20HDD%20-%20English.txt
Russian: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/Replace%20HDD.txt
File(s) used in first gen:
original_v03.04.01-230.tar.gz: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/Backups/original_v03.04.01-230.tar.gz
original_v04.01.02-417.tar.gz: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen1/Backups/original_v04.01.02-417.tar.gz
Latest first gen firmware: http://support.wdc.com/downloads.aspx?g=904
Second gen directions:
English: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen2/_Unbricking_en.txt
Russian: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen2/_Unbricking_ru.txt
usbrecovery.tar.gz: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen2/usbrecovery.tar.gz
Alternate method files:
uImage-wdrecovery: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen2/Developing/uImage-wdrecovery
uRamdisk-wdrecovery: https://fox-exe.ru/WDMyCloud/WDMyCloud-Gen2/Developing/uRamdisk-wdrecovery
Latest second gen firmware: http://support.wdc.com/downloads.aspx?g=904
Note: Because the uRamdisk-wdrecovery and uImage-wdrecovery do not have file extentions they may not download correctly. One may have to copy the URL links and paste them into a web browser to have the two files download properly.
