退货证据支持
支持 iOS 17 或更高版本的 iPhone。开始录像前建议至少保留 250MB 可用空间。
案件记录保存在哪里？
案件和原始媒体保存在这台 iPhone 的 App 私有容器中。ReturnGuard 不运营云端媒体库；如果已开启 iPhone 备份，Apple 可能把 App 容器纳入加密的 iCloud 或电脑备份，开发者无法访问或代你恢复。删除 App 或更换设备前，请先导出重要案件材料。
为什么同时有原片和水印副本？
锁定原片始终保持不变。分享副本会永久显示订单标识、录制阶段、时间和短文件指纹，让接收者更容易理解材料背景。
App 能判断买家是否欺诈吗？
不能。本 App 只整理用户记录的事实和文件完整性信息，平台与相关机构会自行作出判断。
服务器签名时间凭证会上传录像吗？
不会。该功能默认关闭；你主动开启或手动申请后，只发送文件指纹、媒体类型和拍摄时间。服务器签名后立即丢弃请求字段，不接收照片、视频、订单号或买家资料。
必须注册账户吗？
不需要。不登录也能拍摄、保存、查看、对比和导出。需要店铺档案备份时，可在全球使用邮箱验证码注册；中国大陆短信能力可用时也可使用 +86 手机号。验证后可重新获取验证码登录，或使用已验证联系方式加密码登录。账户不备份订单、买家资料、商品模板、商品库、照片或视频。
如何修改或忘记密码？
登录后打开“设置 → 我的账户 → 修改密码”。忘记密码时，切换到验证码登录，重新验证已注册邮箱或手机号后设置新密码。
怎样删除账户？
打开“设置 → 我的账户 → 删除账户”。服务器会删除已验证邮箱或手机号、密码摘要和已备份店铺资料，本机证据仍保留。仅卸载 App 不会删除可选服务器账户。
如何恢复终身解锁？
使用当初购买的 Apple ID，在 App 设置中选择“恢复购买”。
删除案件或卸载 App 会怎样？
本地记录会被删除。由于开发者没有案件或媒体的服务器副本，因此无法恢复。
联系支持
请发送邮件至 support@xunfangbbs.com，并注明 App 版本、iPhone 型号、iOS 版本和问题描述。除非确有必要且已获授权，请勿发送客户地址或案件媒体。
ReturnGuard Support
ReturnGuard supports iPhone with iOS 17 or later. Keep at least 250 MB free before recording.
Where are my records?
Cases and original media are stored in ReturnGuard’s private app container on this iPhone. ReturnGuard does not operate a cloud media library. If iPhone backup is enabled, Apple may include the app container in your encrypted iCloud or computer backup; the developer cannot access or restore it. Export important files before deleting the app or changing devices.
Why are there an original and a watermarked copy?
The locked original remains unchanged. The sharing copy displays the order reference, phase, time, and a shortened file fingerprint.
Can ReturnGuard decide whether a buyer committed fraud?
No. ReturnGuard organizes user-recorded facts and file integrity information. Platforms and authorities make their own decisions.
Do server-signed time receipts upload my recordings?
No. The option is off by default. Only a file fingerprint, media type, and capture time are sent after you opt in or manually request a receipt; the server discards those fields after signing.
Do I need an account?
No. Recording, saving, viewing, comparison, and export work without signing in. For optional store-profile backup, register worldwide by email verification or, when China mainland SMS is available, with a +86 mobile number. Then sign in with a new code or verified contact plus password. Account backup never includes orders, buyer details, product templates, the Product Library, photos, or videos.
How do I change or reset my password?
After signing in, open Settings → My Account → Change Password. If you forgot it, switch to Verification Code, verify the registered email address or phone number again, then create a new password.
How do I delete my account?
Open Settings → My Account → Delete Account. The server removes the verified email address or phone number, password hash, and backed-up store metadata while local evidence remains on the iPhone. Uninstalling the app alone does not delete an optional server account.
How do I restore Lifetime Unlock?
Choose Restore Purchase in ReturnGuard Settings while signed in to the Apple ID that made the purchase.
Contact
Email support@xunfangbbs.com with the app version, iPhone model, iOS version, and issue description. Do not send sensitive case content unless necessary and authorized.