Why? Because the data is stored in a secure partition (SLC – Secondary Level Cache or the secure eMMC area) that autoloaders typically do not overwrite.
By flashing a , the mandatory anti-theft login is bypassed because that specific version does not check the "Protect" flag in the same way modern versions do. System Requirements : blackberry q5 anti theft removal firmware
BlackBerry 10.3.3.3216 Autoloader (for Screen Reader method). System Requirements : BlackBerry 10
Since BlackBerry shut down many of their legacy servers and infrastructure, the landscape has changed. Some users have reported success using a specific method if they cannot downgrade the OS: Attempting to bypass anti-theft protection on a device
This article is for educational purposes. Attempting to bypass anti-theft protection on a device you do not own may violate laws in your jurisdiction. Always verify ownership before proceeding.
The anti-theft feature, also known as BlackBerry Protect, was designed to deter theft by allowing users to remotely lock or wipe their device in case of loss or theft. Activation of this feature requires a BlackBerry ID, and if enabled, a device can be rendered unusable even if the SIM card is changed or the device is wiped.