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Why Does My Huawei or Honor Phone Stop the Camera App With the Screen Off? App Launch, Protected Apps and PowerGenie

Why Does My Huawei or Honor Phone Stop the Camera App With the Screen Off? App Launch, Protected Apps and PowerGenie

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9 min read

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Python's zipfile Dated Every Extracted Camera Clip as Just Now, and unzip Brought Them Back Five Hours Late

Python's zipfile Dated Every Extracted Camera Clip as Just Now, and unzip Brought Them Back Five Hours Late

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9 min read
date -d "-1 month" Named the Current Month on Seven Days of 2026: Picking Last Month's Camera Clip Folder in Bash

date -d "-1 month" Named the Current Month on Seven Days of 2026: Picking Last Month's Camera Clip Folder in Bash

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7 min read
Why Does My OPPO, realme or vivo Phone Stop the Camera App With the Screen Off? Auto-launch, Background Power and Recents Lock

Why Does My OPPO, realme or vivo Phone Stop the Camera App With the Screen Off? Auto-launch, Background Power and Recents Lock

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9 min read
An EU Rule Puts a Minimum Charger Wattage on New Phone Boxes. For a Phone Camera on Permanent Power, It Is the Number to Check

An EU Rule Puts a Minimum Charger Wattage on New Phone Boxes. For a Phone Camera on Permanent Power, It Is the Number to Check

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9 min read
timeout Returned 124 After the Job Had Finished Its Work: Testing GNU timeout on a Nightly Clip Script

timeout Returned 124 After the Job Had Finished Its Work: Testing GNU timeout on a Nightly Clip Script

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8 min read
Start the Stream Before Midnight: A 40-Line Python Planner That Gets 12.6 Hours From a 1.5 GB/Day Plan

Start the Stream Before Midnight: A 40-Line Python Planner That Gets 12.6 Hours From a 1.5 GB/Day Plan

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7 min read
Roku Is Leaving Smart Home Hardware — A Calm Checklist for Anyone Whose Camera Depends on a Company

Roku Is Leaving Smart Home Hardware — A Calm Checklist for Anyone Whose Camera Depends on a Company

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5 min read
Why Does My Redmi, POCO or Xiaomi Phone Stop the Camera App With the Screen Off? Autostart, Battery Saver, Recents Lock

Why Does My Redmi, POCO or Xiaomi Phone Stop the Camera App With the Screen Off? Autostart, Battery Saver, Recents Lock

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8 min read
Matter 1.5 Gave Home Cameras a Standard. Its Announcement Lists Features Without Saying Which a Certified Camera Must Have

Matter 1.5 Gave Home Cameras a Standard. Its Announcement Lists Features Without Saying Which a Certified Camera Must Have

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7 min read
Why Does My Tecno, Infinix or itel Phone Stop the Camera App With the Screen Off? Phone Master, Auto-start and Sleep Mode

Why Does My Tecno, Infinix or itel Phone Stop the Camera App With the Screen Off? Phone Master, Auto-start and Sleep Mode

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8 min read
Is My Cheap 128 GB SD Card Fake? How to Test a Memory Card Before It Goes in an Offline Phone Security Camera

Is My Cheap 128 GB SD Card Fake? How to Test a Memory Card Before It Goes in an Offline Phone Security Camera

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8 min read
WHERE seconds > 60 Returned a 9-Second Clip and Skipped a 120-Second One: SQLite's .import Made the Column TEXT

WHERE seconds > 60 Returned a 9-Second Clip and Skipped a 120-Second One: SQLite's .import Made the Column TEXT

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9 min read
Why Does My Phone Security Camera's Battery Drop Even Though It Is Plugged In? Weak Chargers, Thin Cables, and What 'Charging Slowly' Really Measures

Why Does My Phone Security Camera's Battery Drop Even Though It Is Plugged In? Weak Chargers, Thin Cables, and What 'Charging Slowly' Really Measures

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9 min read
total - used Said Start, free Said Refuse: The Root Reserve Inside shutil.disk_usage and a Clip Writer's Free-Space Check

total - used Said Start, free Said Refuse: The Root Reserve Inside shutil.disk_usage and a Clip Writer's Free-Space Check

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8 min read
((count++)) Stopped My Clip Counter Under set -e Before It Printed a Line: Bash Arithmetic Returns 1 on Zero

((count++)) Stopped My Clip Counter Under set -e Before It Printed a Line: Bash Arithmetic Returns 1 on Zero

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7 min read
Six Camera Clips, Three in the Archive, Every mv Exited 0: Testing Same-Name Moves From Two Folders

Six Camera Clips, Three in the Archive, Every mv Exited 0: Testing Same-Name Moves From Two Folders

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8 min read
Why Does My Phone Camera's Live Stream Stop After a Few Hours on Mobile Data? The 1.5 GB/Day Limit and the 64 Kbps Speed After It

Why Does My Phone Camera's Live Stream Stop After a Few Hours on Mobile Data? The 1.5 GB/Day Limit and the 64 Kbps Speed After It

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9 min read
An Empty Folder Made My Upload Loop Report One Clip: What Bash Does With a Glob That Matches Nothing

An Empty Folder Made My Upload Loop Report One Clip: What Bash Does With a Glob That Matches Nothing

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9 min read
Does VOICE_RECOGNITION Make Breaking Glass Sound Duller? What a 4 kHz Ceiling Costs a Phone Camera's Sound Detection

Does VOICE_RECOGNITION Make Breaking Glass Sound Duller? What a 4 kHz Ceiling Costs a Phone Camera's Sound Detection

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8 min read
Why Does My Samsung Phone Camera Stop Recording at Night? Auto Restart, the 30% Battery Rule, and What to Turn Off

Why Does My Samsung Phone Camera Stop Recording at Night? Auto Restart, the 30% Battery Rule, and What to Turn Off

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8 min read
UK Law Makes Phone Makers Publish When Security Updates End. One Statement I Read Ran Out in February 2025

UK Law Makes Phone Makers Publish When Security Updates End. One Statement I Read Ran Out in February 2025

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7 min read
Going Home for Diwali? How to Leave an Old Phone Watching a Locked House for a Week: Power, Storage, and an Offline Security Camera Without Internet

Going Home for Diwali? How to Leave an Old Phone Watching a Locked House for a Week: Power, Storage, and an Offline Security Camera Without Internet

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8 min read
tar czf on a Folder of Camera Clips Saved 1.3%, and 96% of That Was One CSV Log

tar czf on a Folder of Camera Clips Saved 1.3%, and 96% of That Was One CSV Log

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8 min read
find -size -1M Matched Only the Empty File: Size Units in a Camera Clip Cleanup Script

find -size -1M Matched Only the Empty File: Size Units in a Camera Clip Cleanup Script

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7 min read
comm -23 Said Nine Camera Clips Were Missing From the Backup. Two Were.

comm -23 Said Nine Camera Clips Were Missing From the Backup. Two Were.

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8 min read
Why Is My AlfredCamera Camera Disabled? The 2026 Two-Camera Free Limit, Legacy Pricing, and an Offline Option for Camera #3

Why Is My AlfredCamera Camera Disabled? The 2026 Two-Camera Free Limit, Legacy Pricing, and an Offline Option for Camera #3

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8 min read
wc -l Says 2, grep Says 3: A Missing Final Newline Drops the Last Clip From a while read Loop

wc -l Says 2, grep Says 3: A Missing Final Newline Drops the Last Clip From a while read Loop

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7 min read
Why Does My Phone Security Camera Only Show a Reflection at Night? Recording Through a Window, Double Glazing and Mosquito Mesh

Why Does My Phone Security Camera Only Show a Reflection at Night? Recording Through a Window, Double Glazing and Mosquito Mesh

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9 min read
clip_08.mp4 Stopped My Bash Loop and the Script Still Exited 0: A Leading Zero Means Octal in Bash Arithmetic

clip_08.mp4 Stopped My Bash Loop and the Script Still Exited 0: A Leading Zero Means Octal in Bash Arithmetic

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9 min read
Why Do Faces Come Out Black on My Phone Security Camera? Backlight, Auto-Exposure, and Where to Point the Phone

Why Do Faces Come Out Black on My Phone Security Camera? Backlight, Auto-Exposure, and Where to Point the Phone

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8 min read
Python's round() and JavaScript's Math.round() Disagree on Half the Days in a Footage Summary

Python's round() and JavaScript's Math.round() Disagree on Half the Days in a Footage Summary

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9 min read
A Crontab Line That Works in Your Terminal Fails Under cron: What % Means in a Crontab

A Crontab Line That Works in Your Terminal Fails Under cron: What % Means in a Crontab

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9 min read
Sending Phone Security Camera Footage on WhatsApp: Why the Clip Looks Blurry, the 100 MB / 720p Limit, and When to Send It as a Document

Sending Phone Security Camera Footage on WhatsApp: Why the Clip Looks Blurry, the 100 MB / 720p Limit, and When to Send It as a Document

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8 min read
Is Camera 1 Still Recording? A 15-Minute Check That Doesn't Lie When the Clip Folder Is Full

Is Camera 1 Still Recording? A 15-Minute Check That Doesn't Lie When the Clip Folder Is Full

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8 min read
Why Does My Phone Security Camera's Audio Hiss in a Quiet Room? Android Audio Sources, Automatic Gain Control, and an Offline Test

Why Does My Phone Security Camera's Audio Hiss in a Quiet Room? Android Audio Sources, Automatic Gain Control, and an Offline Test

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9 min read
Python Wrote NaN Into My JSON and Only Python Could Read It Back

Python Wrote NaN Into My JSON and Only Python Could Read It Back

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7 min read
One Apostrophe Stopped xargs Halfway Through a Checksum Manifest: Testing find | xargs Against Odd Filenames

One Apostrophe Stopped xargs Halfway Through a Checksum Manifest: Testing find | xargs Against Odd Filenames

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9 min read
new Date('2026-10-25') Shows October 24 West of Greenwich, and a Day Filter Built on It Is Off Everywhere but UTC

new Date('2026-10-25') Shows October 24 West of Greenwich, and a Day Filter Built on It Is Off Everywhere but UTC

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9 min read
Rainy Season and a Phone Security Camera: Why It Says 'Moisture Detected' and Stops Charging, Why the Lens Fogs, and How to Keep It Recording Offline

Rainy Season and a Phone Security Camera: Why It Says 'Moisture Detected' and Stops Charging, Why the Lens Fogs, and How to Keep It Recording Offline

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9 min read
H.264 or H.265 for an Offline Phone Security Camera? Half the Storage, or Footage You Can Actually Play

H.264 or H.265 for an Offline Phone Security Camera? Half the Storage, or Footage You Can Actually Play

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8 min read
set -o pipefail Failed My Clip Script on Some Nights and Not Others: Exit Status 141, head and grep -q

set -o pipefail Failed My Clip Script on Some Nights and Not Others: Exit Status 141, head and grep -q

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9 min read
Why Does a Phone Security Camera Recording Stop at Almost 4 GB? The FAT32 SD Card Limit, exFAT, and How to Record All Night Offline

Why Does a Phone Security Camera Recording Stop at Almost 4 GB? The FAT32 SD Card Limit, exFAT, and How to Record All Night Offline

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9 min read
GNU tar Exit Status 1 on a Folder That Is Still Being Written: Zero-Padded Clips, set -e, and || true

GNU tar Exit Status 1 on a Folder That Is Still Being Written: Zero-Padded Clips, set -e, and || true

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9 min read
I Copied a Live SQLite Database and the Copy Had No Tables: WAL Mode Keeps Commits in a Second File

I Copied a Live SQLite Database and the Copy Had No Tables: WAL Mode Keeps Commits in a Second File

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10 min read
Why Does My Phone Security Camera Video Look Smeary at Night? Noise Reduction, Edge Sharpening, and What Actually Helps

Why Does My Phone Security Camera Video Look Smeary at Night? Noise Reduction, Edge Sharpening, and What Actually Helps

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8 min read
#!/usr/bin/env python3 -u Worked Under python3 and Failed as ./prune.py: What Linux Does With a Shebang Line

#!/usr/bin/env python3 -u Worked Under python3 and Failed as ./prune.py: What Linux Does With a Shebang Line

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8 min read
rm *.mp4 Said Argument list too long and Deleted Nothing: What execve Counts That the Shell Does Not

rm *.mp4 Said Argument list too long and Deleted Nothing: What execve Counts That the Shell Does Not

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8 min read
Why Does My Phone Security Camera Show Less of the Room? Video Stabilization Crops the Edges, and a Fixed Camera Doesn't Need It

Why Does My Phone Security Camera Show Less of the Room? Video Stabilization Crops the Edges, and a Fixed Camera Doesn't Need It

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8 min read
Rewriting a JSON File in Place Let My Reader See It Half-Written: Temp File, fsync, os.replace and Three Traps

Rewriting a JSON File in Place Let My Reader See It Half-Written: Temp File, fsync, os.replace and Three Traps

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9 min read
Two Files Named café.mp4 in One Folder: How Unicode Normalization Defeats a Copy Script's Skip Check

Two Files Named café.mp4 in One Folder: How Unicode Normalization Defeats a Copy Script's Skip Check

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9 min read
How to Check an Old Phone's Battery Before Using It as a Security Camera: Your Backup in a Power Cut, No App to Buy

How to Check an Old Phone's Battery Before Using It as a Security Camera: Your Backup in a Power Cut, No App to Buy

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8 min read
SQLite Ignored My ON DELETE CASCADE: Foreign Keys Are Off Until Each Connection Turns Them On

SQLite Ignored My ON DELETE CASCADE: Foreign Keys Are Off Until Each Connection Turns Them On

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8 min read
Why Does an ffmpeg Contact Sheet Skip the Person in a Camera Clip? What thumbnail and fps Each Pick

Why Does an ffmpeg Contact Sheet Skip the Person in a Camera Clip? What thumbnail and fps Each Pick

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10 min read
Your Camera Phone Gets No Annual Notice of Change: A Once-a-Year Review for a Phone Nobody Opens

Your Camera Phone Gets No Annual Notice of Change: A Once-a-Year Review for a Phone Nobody Opens

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4 min read
Should You Turn On Developer Options to Keep an Old Phone Security Camera Recording With the Screen Off? Six Settings Checked Against Android's Docs

Should You Turn On Developer Options to Keep an Old Phone Security Camera Recording With the Screen Off? Six Settings Checked Against Android's Docs

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9 min read
rm Freed Nothing and df Stayed Full: Finding the Process Still Holding a Deleted Camera Clip

rm Freed Nothing and df Stayed Full: Finding the Process Still Holding a Deleted Camera Clip

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9 min read
Two Files 100 Nanoseconds Apart Got the Same Timestamp in the Browser: JSON.parse and Integers Past MAX_SAFE_INTEGER

Two Files 100 Nanoseconds Apart Got the Same Timestamp in the Browser: JSON.parse and Integers Past MAX_SAFE_INTEGER

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8 min read
Will an Old 3G Phone Work as a Security Camera on Mobile Data? What the E, H and 4G Icons Mean for Offline and Low-Data Setups

Will an Old 3G Phone Work as a Security Camera on Mobile Data? What the E, H and 4G Icons Mean for Offline and Low-Data Setups

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8 min read
flock on a Cron Copy Job: A Background Helper Kept the Lock After the Script Exited

flock on a Cron Copy Job: A Background Helper Kept the Lock After the Script Exited

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9 min read
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