System Tips

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8 System Title
Keywords		 Keyboard Steps Posted Date
Android Dangerous Settings
ads spy secret

May Require "Developer options" to be installed

SETTINGS -> Developer options {bottom} -> System Tracing -> Trace Debugable Applications {Turn off}
scroll to "Per-CPU buffer size" {CHECK 8192 KB}
Clear saved traces

Secret Wi-Fi menu
Developer options -> Wi-Fi non-persistent MAC->ON

Getting rid of ads
Settings-> Connections –> More connection settings -> private DNS -> private DNS provider {check} ->
type in "dns.adguard.com" -> save

parasitic setting
Settings app -> digital wellbeing & parental controls -> 3 dots {top right} -> Settings -> usage data access -> Settings -> allow permissions -> OFF

Spying on your phone
Check tracking
Settings app -> search for (spy glass) -> type; tracker-> unknown tracker alerts -> allow alerts -> manual scan -> view report

Next

Settings app -> Security & privacy -> permission used 24 hr -> press three dots {top right} –> Show system apps -> permissions tab -> physical activity -> customization service -> See all custom {link}

some apps may require permissions to work. so be careful.

Phone codes
Secret codes – *#62# forwarded calls
Secret codes – – ##21# call forwarding unconditionally erasure
Secret codes – – *#06# phone info		 01/03/2026
Android Pdf Cache Problem
cache
To clear the PDF cache in Google Chrome on Android, you need to delete your general cached images and files or use device storage settings to wipe Chrome's app cache. [1, 2, 3]

Method 1: Delete Cached Files via Chrome Settings
  1. Open the Chrome app on your Android device.
  2. Tap the three-dot menu in the top right corner.
  3. Select History Clear browsing data.
  4. Set the Time range to All time (or the period when you viewed the PDF).
  5. Check the box for Cached images and files. (Make sure to uncheck other options like browsing history or passwords if you want to keep them.)
  6. Tap Clear data. [1]


Method 2: Force Clear Chrome App Cache

If the PDF is still stubbornly displaying an old version, wipe the app data directly from your device settings. 2]
  1. Go to your Android Settings.
  2. Tap Apps See all apps (or Manage Apps).
  3. Find and tap Chrome.
  4. Select Storage & Cache.
  5. Tap Clear cache
 06/13/2026
Android Turn On Developer Options
developer option		 00:00:00 Dangerous setting to turn off on Android phone
Settings -> about phone -> Software Information ->
Build Number (click 7 times rapidly) Developer Mode will be activated
{phone will notify you when it has the menu created}

This has done be done once to be permanent

 01/03/2026
Android Gallery Labs Hidden Tool List
gallery labs hidden tool		 Install Gallery Labs Menu if you have not already

Open gallery app -> 3bar menu {lower right corner} ->
Gallery labs -> Samsungs hidden tool list ->		 01/03/2026
Android Install Gallery Labs Menu
gallery labs install		 Open gallery app -> 3bar menu {lower right corner} ->
Settings -> About Gallery -> Tap on version# 5times fast

This only has to be done once

 01/03/2026
Android Change Hidden Settings In Gallary App
gallery performance

Step 1

SETTINGS
search for "gallery" then ->
Gallery App info -> Mobile data -> Turn off Allow background data usage

Step 2

Go back one step <- Battery -> Restricted

Step 3

Go back one step <- Appear on top or draw over other apps -> turn "Allow permission" – off		 01/03/2026
Android Google Reporting Shutdown
google tracker		 Google reporting

Settings app->Usage & diagnostics (turn off)->

next

Settings app -> digital wellbeing & parental controls -> press 3 dots {top left} -> Settings -> usage data access -> settings -> turn off access

next

Settings app -> digital wellbeing -> customization services -> switch off		 01/03/2026
Android Google Services Trackers
google trackers

Enabled trackers to turn off


SETTINGS -> Google Services -> All Services ->
01:58:09 personalize using shared data -> turn all 3 or 4 apps listed off

Apps

SETTINGS -> Apps -> 3dots {upper right} ->
Special Access -> usage data access -> Google -> Disable all 3 Google entities

02:30:07 3 setting to always turn off ->
02:43:20 SETTINGS -> privacy & security -> more privacy settings ->
— Personal data intelegence -> Turn off
03:18:08 <- usage & diagnostics -> turn off
03:35:03 END		 01/03/2026