A Quick Checklist Before You Send a Large File

Large transfers are exactly where small oversights turn into a wasted twenty minutes. A sixty-second check beforehand avoids most of it.

1. Confirm it's actually the file you mean to send

Obvious, but the single most common real mistake. A quick check of the filename — and a preview, if it's a document or image — is worth it, especially for anything with version numbers or similarly-named files nearby.

2. Check both devices' power and screen settings

A transfer that outlives your laptop's sleep timer or your phone's screen lock is asking for a stall. For a genuinely large file, turning off sleep and screen-lock on both ends for the duration is worth the extra step.

3. Pick a stable network over a fast-looking one

A strong Wi-Fi signal indicator isn't the same thing as a stable connection. Given a choice between flaky public Wi-Fi and a slower but steady mobile connection, steady wins for a large, uninterrupted transfer.

4. Decide files vs. one archive upfront

Sending a folder as individual files, rather than zipping it into one archive first, means a hiccup only costs you that one file's retry — not the whole batch starting over from zero.

5. Know roughly how big 'large' is for your connection

There's no universal size limit on a direct transfer, but the honest expectation-setter is your own upload and download speed — a file that feels instant on office fiber can be a real wait on mobile data, and that's normal, not a sign something's wrong.

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