GoKawiilI found my old reMarkable 2 paper tablet, bought in 2021, it had sat unused for ~4 years or so. The device was in a sorry state:
Cloud sync failing. The only thing showing was a cryptic error 0 .
. Software update didn’t work.
This post details how you might be able to bring your tablet back to working order if you find yourself in a similar situation.
The clock
Googling the error I found a forum post with what its author called “the fast solution”, SSH in, set the clock:
ssh [email protected] # USB. over wifi: the tablet's LAN IP # password: on the tablet, Settings → Help → Copyrights and licenses → General info # (username root, password, IPs all listed there) timedatectl # confirm how far off it is timedatectl set-ntp 0 # disable auto time first, or set-time errors out timedatectl set-time '2026-07-15' timedatectl set-ntp 1
After setting the time, I was able to download a software update.
Update: This failure mode is also documented in an official support article: an out-of-sync device clock can prevent software updates.
After the first software update, cloud sync now gave me a different error: HTTP 400. I found the actual error message in the journal: “Unable to sync. Please update this application to continue using the reMarkable cloud.”
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