See Your Pet When Your Phone Lights Up: A Free Image-to-Video Lock Screen Guide
Your pet's familiar face is already a good reason to pick up your phone. A tiny ear movement could make that picture feel a little more lively without turning the Lock screen into a busy scene.
This guide is for Samsung Galaxy owners whose device and software support video Lock screen wallpaper. Check that option before preparing a clip; it is not a promise that every phone can use one.
Check the wallpaper option first
On your Galaxy, look for the video option in its Lock screen wallpaper workflow. Use the official instructions for your model if the menus differ. If the option is absent, keep a still pet wallpaper rather than assuming this guide enables a missing feature.
The goal here is the Lock screen, not a promise about the Home screen, a cover display, or every other wallpaper mode. The final device preview will decide whether the actual file and framing work.
Choose a picture that leaves the face visible
Use a photo you took or otherwise have permission to use. Choose one pet, a clear face, and a simple background. Avoid a picture where the important ear is already cut off.
Think about the clock before enlarging the face. Leave some quiet space around the head and near the top, then check the eventual crop on the phone. A clock style or notification layout can occupy different parts of the screen.
A fictional AI puppy illustration for this guide, not an owner's pet photo or a generated video. The portrait leaves room above the head; actual clock placement and cropping must be checked on the phone.
Our example is prepared as a 900×1600 portrait, matching the generator's 9:16 choice. That is a working composition, not a universal Galaxy screen resolution. Your phone may crop the video differently.
Prepare both complete input images
HeyDream's current image workflow asks for a start and an end image. For this small ear-and-return attempt, the same complete portrait supplies both roles.
Export your chosen portrait once, then copy the clean file for the return target. Do not use a face crop for one input and a whole-pet picture for the other. Keep their dimensions and framing identical.
The example's two PNGs have identical bytes. They set the starting and returning pose; they do not draw the middle movement or prove that a generated clip will preserve the pet perfectly.
The complete 900×1600 start and return-target PNGs have identical bytes. The prompt requests a tiny ear movement between them; the pictures do not show a successful animation or guarantee a seamless return.
Keep comparison labels, clock guides and the independent cover out of the inputs. If you choose a different pet or action, adapt the description to features actually visible in your source.
Ask for one small movement
The HeyDream free image-to-video tool is one option for trying the motion. Add the clean portrait to Start Frame and the matching return target to End Frame, choose 9:16, and adapt this prompt:
Keep a fixed view of this tan-and-cream puppy. Let only the loose tip of the ear on the viewer's right lift very slightly once, then relax back to its original resting position. Preserve the puppy's eyes, nose, muzzle, fur markings, head position, body and background. Keep the same framing and lighting. No walking, barking, mouth movement, extra ears, camera movement, new objects or lettering.
For your own photo, replace the puppy description with your actual pet's visible features. Do not request an ear movement if that ear cannot be seen.
Submit the request and follow the interface's actual status messages. The vendor describes previewing and downloading completed results; no successful clip is shown here. Image preparation and phone wallpaper settings are separate from generation.
Inspect the real download and save it to the phone
If a candidate completes, watch it before using it. Compare the eyes, nose, muzzle and markings with the original. Check for an extra ear, a changing collar, a distorted mouth or a camera move that pushes the face toward an edge.
Keep the still photo if the pet stops looking recognisable. A gentle prompt does not guarantee identity preservation.
Download the actual video file. If you worked on a computer, transfer that file to your phone using your usual method. Make sure it appears in Gallery and plays there; a browser preview link is not the same as a locally saved video.
Use the phone's actual feedback about unsupported files or trimming. Do not assume one fixed duration or file-size allowance applies to every Galaxy.
Preview and apply it on a supported Galaxy
Samsung's Lock screen guide describes this route for devices offering the feature:
- Touch and hold the Lock screen, then authenticate on the device when prompted.
- Tap Wallpapers → Gallery and select the saved video.
- Tap Done to reach the wallpaper preview.
- If needed, tap Trim, adjust the length with the slider, and use Play to inspect the selection.
- Tap Done at the bottom after trimming.
- When satisfied with the preview, tap Done at the top right to apply the video.
Your Lock screen needs to be set up already. Follow the current device interface if labels or available controls differ.
A generic composition guide made from the same portrait. The dashed area is not a Samsung control, reserved safe zone, or real Lock screen preview. Check your own device's clock, notifications and crop before applying the actual video.
Before the final confirmation, look at the actual clock and notification area. Are both eyes visible? Does the ear remain inside the crop throughout the movement? Is the face still clear when the video reaches its end?
The guide image above only illustrates leaving space. It is not a Samsung screenshot or a reliable map of where your clock will sit.
After applying the wallpaper yourself, wake the screen and check the result in normal use. If the crop hides an important feature or the motion feels distracting, choose a calmer candidate or return to the original still. The best fit is the one that keeps the familiar face visible.
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