On some models, disconnecting during FRP removal in Test Mode corrupts the userdata partition. The phone may bootloop indefinitely.
: Always use a data-transfer capable cable; "charge-only" cables will not trigger the ADB prompt. Samsung Frp Tool Test Mode Menu
Before delving into the technicalities of the "Test Mode Menu," it is essential to understand the mechanism we are trying to bypass. On some models, disconnecting during FRP removal in
Unlike the standard Android interface, the Test Mode Menu has elevated system privileges. In older Samsung models (pre-Android 8.0), this menu could be accessed easily using a secret dialer code: *#0*# . This code would instantly launch a menu filled with buttons for testing sensors, cameras, speakers, and, crucially, system settings that bypass the standard security handshakes. On some models