MyCloud 2TB - stuck at white LED after botched package installation - need inputs

Hi qaqarox, welcome to the Community. This type of modifications are not supported, but maybe some of the other users can share some advice. You can also check the following links:

http://community.wd.com/t5/WD-My-Cloud/Guide-to-direct-backup-unbrick-disassemble-process-video-like/td-p/628611

http://community.wd.com/t5/WD-My-Cloud/How-to-unbrick-a-totally-dead-WD-My-Cloud/m-p/632129#M2347

If you are unable to recover your files you can contact any of the data recovery partners on the WD support page. 

http://support.wdc.com/recovery/index.asp?wdc_lang=en