Samsung FRP: how to remove the Google account after a reset
Samsung is the brand workshops see most often with an FRP (Factory Reset Protection) lock. After a reset without signing out of the Google account, the phone asks for the previous owner's details. If you are the lawful owner and the password is lost, a technician can remove FRP with a service tool. Success depends on three things: the exact model code, the bootloader revision (BIT) and the Knox Guard state.
A two‑minute check before you pay
- Model code — SM‑A155F, SM‑A546E and so on (label, SIM tray, box).
- Download Mode — power off, hold both volume keys and connect the cable (how to enter differs per tool).
- BIT — the digit in the version string; the method depends on it.
- KG State — if it is Locked, that is Knox Guard, and FRP tools will not help.
Which tools fit Samsung
| Tool | Strength on Samsung |
|---|---|
| UnlockTool | FRP, firmware, wide Galaxy list |
| TSM Tool Pro | FRP, KG/MDM per description, MTK/Exynos/Qualcomm |
| Android Multi Tool | FRP, short rentals |
For a model‑by‑model pick, read the comparison: which FRP bypass tool to rent and Samsung FRP — which tool. Then grab the matching account: UnlockTool or TSM Tool Pro.
Removing FRP usually involves a reset, so warn the owner about data loss. Knox Guard is a separate lock only the creditor can lift.
FAQ
Will data be erased?
Usually yes — FRP removal involves a reset, so warn the owner.
Is Knox Guard removed together with FRP?
No. Knox Guard is lifted only by the creditor.
Which tool should I choose?
Check the model in the UnlockTool and TSM lists; if both support it, pick the one whose method for your BIT is marked as working.
What if it didn't work?
Message the technician on Telegram with a log and we'll suggest the next step.