I'm posting this mainly as an FYI though if there is an answer at your end that would be great. Because version 1.4 does not required developer mode to be enabled, I used the recovery process as outlined on the reMarkable support page to basically reset to factory settings. Since then, I have not been able to sync anything. I get a "failed to upload root schema" error message. reMarkable support has said this was caused by third party software and they cannot do anything to fix it.