When sending images, documents, or archives in SanTiao, the file, device storage, network, and intended recipient all matter. Check before sending, watch the transfer, and verify the download afterward to reduce duplicate sends, data exposure, and unsafe openings.
1. Confirm the recipient, content, and file type
Check that the conversation is the intended contact or group, then preview the file. Similar names, older versions, and duplicate images are easy to select by mistake. For work material, confirm that the recipient is authorized. Never send passwords, verification codes, identity documents, or internal material to an unconfirmed conversation.
2. Follow size and format warnings
If SanTiao says that a file is too large or unsupported, follow the current prompt. Resize images only while keeping them readable. Documents can be organized and compressed, but an archive is not encryption. Do not change an extension just to bypass a limit.
3. Check storage and network before transfer
The sending device must read the original file and the receiving device needs enough space to save or cache it. Nearly full storage can cause interrupted uploads, failed downloads, or preview errors. Use a stable connection, keep the app in the foreground, and watch progress. If progress pauses briefly, wait instead of clicking repeatedly.
4. Avoid duplicate copies after a failure
Read the failure message and confirm that the original still opens locally. Test the conversation with a small file containing no private material. Before retrying, check for an existing successful record so the recipient does not receive several identical copies.
5. Confirm the save location and real file type
Look in the SanTiao conversation, the system download folder, or recent items in the file manager. Before opening a download, check its name, extension, source, and time. An icon does not prove safety. If the name has multiple extensions, unusual symbols, or conflicts with the sender's description, verify it independently first.
6. Verify unfamiliar files before handling them
Even a familiar avatar may represent an impersonated account or an accidental send. Confirm the sender and purpose through a known channel. Do not open files that ask you to enable macros, disable security software, install an unknown program, or enter a password. Keep any device risk warning and stop instead of bypassing protection.
7. Keep a traceable record for important files
Use a clear filename with a version or date, but do not expose identity or phone numbers. If problems continue, record the device, operating system and SanTiao version, file type and size, network, failure time, and exact message. Redact file contents and contact details before contacting support.
Safe SanTiao transfer is four steps: confirm the recipient, follow the actual size and format prompt, watch the network and progress, and verify the source, type, and save location after downloading.