Record Computer BIOS Screen Using Phone Complete Guide for Clear Readable Video
The BIOS screen appears before Windows loads, so no screen recorder inside the PC can capture it. A phone camera pointed at the monitor can — but only if you set it up like a camera, not like a quick snapshot. This complete guide covers the whole filming method, step by step.
By Technical AnshuBIOS / UEFI9 minute read
Watch the full video — recording the BIOS screen with a phone, shown live from setup to finished clip
Every BIOS tutorial starts with the same problem. You restart the PC, the BIOS screen flashes past, and it is gone before Windows — and with it every screen recorder — has even started. The simple answer is the phone in your pocket: film the monitor. The catch is that a careless phone recording is shaky, washed out and unreadable. This guide is the careful version: how to frame the shot, lock the phone camera settings, control the light and record a full BIOS session that viewers can actually read. Nothing here needs buying — just a phone, something to hold it steady, and ten minutes of setup.
What a well filmed BIOS screen looks like on the phone
+--------------------------------------------------+
| Aptio Setup Utility - BIOS Version 2.21 |
| |
| Main Advanced Boot Security Save+Exit |
| |
| BIOS Information |
| BIOS Version .......... 2.21.1271 |
| Build Date ........... 04/12/2026 |
| Processor Type ........ Intel Core i5 |
| System Memory ......... 16384 MB |
| |
| Every line sharp, frame full, no glare |
+--------------------------------------------------+
A recreated BIOS screen as it should look in your recording — the menu fills the frame and every value is readable. Example values shown.
1
Why the Phone Camera Is the Simple Answer
Screen recording software runs inside Windows. The BIOS runs before Windows. When the BIOS menu is on screen, there is no operating system, no driver and no recorder alive on the PC — so nothing on the PC can save that picture. A camera is outside the PC, so it does not care which stage the PC is in. It films the POST screen, the BIOS menu, a boot failure message, anything the monitor shows. That independence is exactly what makes phone filming the right first tool for one-off BIOS recordings, support videos and quick documentation.
2
What You Need Before You Start
Your phone with enough free storage — a 10 minute 1080p clip can take roughly 1 to 2 GB
A tripod, phone stand or a stable stack of books to hold the phone — hand holding for a full BIOS session always drifts
The camera app already on your phone; a manual camera app helps if it offers focus and exposure lock
A room where you can dim or switch off the main light
Your BIOS key noted down — commonly Del or F2, shown on the first boot screen
Charge the phone or plug it in. A phone that dies mid-recording or drops a low battery popup over the frame ruins the take.
3
Set the Phone Up Like a Camera, Not a Snapshot
Switch the camera to video mode and choose 1080p at 30 fps — BIOS text is static, so a higher frame rate buys nothing and costs light
Turn off any beauty filter, HDR video or AI enhancement — these smear small text while the menu moves
Tap the BIOS text on the phone screen to focus on it, then lock focus and exposure (long press on most phones) so the camera stops hunting every time the screen changes
Lower the exposure slightly if the white BIOS background blooms — a small step darker keeps the text edges crisp
Switch on Do Not Disturb and lock the screen rotation to landscape
4
Frame the Screen and Fix the Phone Position
Place the phone straight in front of the monitor, lens at the same height as the centre of the screen
Move the phone closer or farther until the monitor edges just fill the phone frame — do not pinch zoom, digital zoom softens text
Check all four corners: the frame lines should be parallel to the monitor edges, not tilted
Record a 10 second test, zoom into the playback and read the smallest text — if you cannot read it on the phone, viewers cannot read it either
If the monitor is small or the text stays tiny, move closer and accept a tighter crop of the screen. A readable crop beats a full frame nobody can read.
5
Control Light, Glare and Flicker
Switch off or dim the room light that sits behind you — it reflects straight off the screen into the lens
Close curtains if daylight hits the monitor
Set the monitor brightness to a comfortable middle level; a screen at full brightness often blooms on camera
If you see dark bands rolling through the picture, change the camera shutter setting or frame rate once and retest — bands come from the camera and the display refreshing at different rhythms
6
Record the BIOS Session
Start the phone recording before you restart the PC
Restart and press the BIOS key as the first screen appears
Move through the menus slowly — pause two or three seconds on every screen you want viewers to read
Keep your hands off the desk and the phone; even small vibrations show up as shake
When you finish, stop the recording before touching the phone mount
Work in sections if the menu is long. It is far easier to re-shoot one section than one perfect 10 minute take.
7
Review Before You Call It Done
Play the clip back on the phone at full screen and check three things: the smallest text is readable, the brightness does not pump up and down, and no reflection crosses the screen. Then watch the first 10 seconds again — that is the part viewers judge. If a section fails, re-shoot only that section while your setup is still in place. Honest limit: filmed footage never matches a direct digital capture for pixel sharpness. For a support clip, a class, a forum post or a YouTube tutorial it is normally more than enough — and it costs nothing.
Planning many BIOS videos? Hardware capture records the video signal itself instead of filming the screen. The channel has a separate capture card video for that upgrade — filming first, hardware when the volume justifies it.
Watch the Complete Video
The complete phone recording method, shown live on a real PC — framing, settings and the finished BIOS footage.
Can I record the BIOS with OBS or the Xbox Game Bar?
No. Those tools are programs inside Windows, and the BIOS screen exists before Windows starts. While the BIOS menu is showing, no recorder is running on the PC, so the capture has to come from outside the PC — a camera or capture hardware.
Which phone camera settings work best for a BIOS screen?
Use 1080p at 30 fps, turn off beauty filters and HDR video, tap the text to focus, then lock focus and exposure so the camera does not hunt when menus change. Slightly reducing exposure keeps white BIOS backgrounds from blooming.
Why does my recorded BIOS video look blurry even in 1080p?
Usually one of three causes: digital zoom instead of moving the phone closer, autofocus refocusing mid-recording, or the monitor not filling the phone frame. Fill the frame by distance, lock the focus, and test with a 10 second clip before the real take.
This guide is based on the Technical Anshu video linked above. If a screen on your PC looks different, ask in the video comments and you will get help there.