By default, the Dropbox app stops auto-uploading when your battery is low to save battery life.You have to unlink dropbox, relink it, synch nothing, then synch individual folders one at a time. Int he past month on 6 different macs at work, Dropbox keeps getting stuck uploading files. My phone is connected via Wi-Fi and low power mode is deactivated I have to keep my display on all the time to prevent the upload from stopping. When I for example upload something on dropbox or whatsapp (or any other app) and lock my phone, the upload stops/fails. I've got a problem with my iPhone 6s Plus.Smartphone made good-as-new and with warranties It is set to use wifi, not mobile data, but that is no different. Every so often, I upload them from my phone camera by opening the app, touching the photo icon and the uploads begin. I have been using Dropbox to store photos from my iPhone for years.
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