The update process is handled by the game engine. I'm pretty sure resuming an update is not possible.
I'll take a look to check if I can tweak the engine.
Here's what you can try.
In your browser, login to the EU portal with your itchio credentials.
If you're not able to login, then there's an issue on our side
Then launch the downloader and go through the authentication process,
as you're already logged in it should be quite fast.
You might need to retry authentication in the downloader once or twice as wrong/outdated data are stored in your device and on our servers.
What's the extension of the downloaded file? Does it ends with `.rpa` or with `.zip`?
If it ends with `.rpa` you just need to copy the file into the correct folder (check https://wiki.andrealphusgames.com/wiki/How_to_add_DLC#Android for the correct folder)
Then it's probably because you've downloaded the rpa file.
You just need to put the file in the right place (https://wiki.andrealphusgames.com/wiki/How_to_add_DLC )
Did you check the related wiki page https://wiki.andrealphusgames.com/wiki/How_to_add_DLC
What's the issue? Any error showing?
Can you try to log in with your itchio account directly on the portal (https://portal.andrealphusgames.com/ ) and check the authorization summary?
Reduce the GP points (https://wiki.andrealphusgames.com/wiki/Wiki_Resources#Romance ), interact with the NPC at least once a week.
We will, at some point move to another server provider to speed up downloads.
It won't fix every latency as some are directly related to android system and renpy engine but it'll help.
We just don't have the human resources right now.
Regarding your issue, you managed to download the file `6b65bc...` but for some reason it's not on your phone storage.
Do you have enough free space (~3G between temporary files and unpacked new files)?