Tools & commands
Terminal, ADB and PowerShell commands, calculators and pro tips.
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How to Check If a Phone Has an Original Screen and Parts
Check if a used iPhone or Samsung has an original screen, battery and camera: Parts and Service History, Genuine Part messages, display tests and repair records.
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ADB Commands to Check an Android Phone Before Buying (2026 Guide)
Useful ADB commands to check a used Android phone before buying: model, Android version, serial number, battery health,…
Windows Commands to Find Your Serial Number and Device Info (2026)
Find your PC’s serial number with Windows commands — wmic, PowerShell Get-CimInstance, Get-ComputerInfo, systeminfo — a…
Mac Terminal Commands to Check Serial Number, Model and MDM Status
Mac Terminal commands to check the serial number, model, macOS version, MDM enrollment, FileVault and Activation Lock b…
iPhone Battery Health & Parts History: What to Check Before Buying
How to read iPhone Battery Health, cycle count and Parts and Service History before buying a used iPhone — what each me…
Fastboot Commands Explained: getvar, oem device-info and More
Fastboot commands explained: fastboot devices, getvar all, getvar unlocked, oem device-info and flashing get_unlock_abi…
iPhone Hidden Codes & Field Test Mode Explained (2026 Guide)
iPhone hidden codes explained: *#06#, Field Test Mode *3001#12345#*, call forwarding *#21#, call waiting *#43# and call…