Documentation

FRPB Documentation Hub

Everything needed to run FRPB safely: desktop app installation and USB driver setup, Android bootloader unlock safety and backup precautions, FRP bypass and flashing workflows, and the troubleshooting steps technicians ask about most.

Applies to FRPB Desktop v2.0.0 · Updated

1. Desktop app installation & driver setup

Requirements

  • Windows 11, 10, 8 or 7 (64-bit)
  • A data-capable USB cable (not charge-only)
  • An authorised Android device, charged above 50%
  • An FRPB licence for paid operations
  1. 1

    Download the official FRPB-Recovery-V2-Setup-2.0.0.exe installer (v2.0.0) from the FRPB download page or the GitHub v2.0.0 release asset.

  2. 2

    Verify the downloaded file name and size match the published release before running it, so a mirror copy can be ruled out.

  3. 3

    Run the installer on a Windows 10 or Windows 11 64-bit PC and complete the setup wizard.

  4. 4

    Open FRPB and let the one-click driver installer detect and install the correct Samsung, Google, MediaTek or Qualcomm USB driver.

  5. 5

    Enable Developer Options and USB debugging on the Android device, then approve the RSA fingerprint prompt when it appears.

  6. 6

    Connect the device with a data-capable USB cable — not a charge-only cable — and confirm FRPB lists the device and its detected mode.

USB driver setup

FRPB ships a one-click OEM driver installer. When a device is not detected, open the driver panel inside FRPB and let it install the matching driver for the brand you are servicing — Samsung, Google Pixel, OnePlus, Xiaomi, MediaTek or Qualcomm. If Windows still binds a generic driver, open Device Manager, uninstall the device entry (including the driver software), reconnect the phone and re-run the FRPB driver installer.

Keep the phone on a rear-panel USB port of a desktop PC where possible. Front-panel ports, unpowered hubs and USB-C docks are the most common cause of a device dropping out mid-operation.

2. Bootloader unlock safety & backup precautions

Unlocking the bootloader wipes all userdata. It also destroys the storage encryption keys and voids most manufacturer warranties. There is no undo — back up first.

A bootloader unlock removes the verified-boot restriction that stops unsigned code from starting. That is what makes custom recovery, root and ROM flashing possible — and it is also why every serious vendor requires an explicit OEM unlocking opt-in followed by a full data wipe.

Pre-unlock checklist

Confirm ownership and authorisation

Only unlock devices you own or are authorised to service. A locked, carrier-locked or policy-locked unit will be refused by the bootloader itself.

Take a full backup first

Copy photos, chats, call logs and any app data to a PC or cloud account. Unlocking wipes userdata and destroys the storage encryption keys — a partial backup is not recoverable afterwards.

Record the device state

Note the model number, build number, Android version and the current OEM unlocking toggle state before you start, so a failed unlock can be diagnosed against a known baseline.

Charge the battery and stabilise the cable

Use a charged battery (above 50%) and a short, data-capable cable in a rear-panel USB port. Interrupted fastboot sessions are the leading cause of self-inflicted soft bricks.

Remove screen locks and accounts you control

Disable the PIN/pattern and remove the Google account you can still access before unlocking. This avoids an FRP re-lock on the first boot after the wipe.

Accept the warranty and integrity trade-offs

Unlocking voids most manufacturer warranties and typically trips Play Integrity / SafetyNet, which can break banking, streaming and some games on that device.

Backup precautions

  • Copy photos, video, documents and downloads to a PC folder you can verify — do not rely on a single cloud sync completing.
  • Export WhatsApp / Telegram chats and media from inside the app before the wipe, not after.
  • Note the Google account on the device. If it cannot be removed before the unlock, Factory Reset Protection will re-lock the phone on first boot.
  • Record any app-specific two-factor authenticators, since re-enrolling after a wipe needs recovery codes you must already hold.
  • Keep the stock firmware package for the exact model and build number ready, so a failed unlock can be restored rather than left in fastboot.

For the full command reference and brand-specific behaviour, read the Android bootloader unlock 2026 guide and the fastboot unlocking guide.

3. FRP bypass & flashing usage guides

FRP bypass workflow

Factory Reset Protection is the Google account lock Android applies after a factory reset. FRPB removes it only for an authorised owner, over a verified USB session.

  1. 1

    Register or sign in to your FRPB licence in the desktop app so the operation is logged to your account.

  2. 2

    Connect the device and let FRPB auto-detect the chipset and the available mode — Download, Recovery, EDL/BROM or fastboot.

  3. 3

    Select the FRP bypass operation and follow the on-screen step for the detected chipset and Android version.

  4. 4

    Keep the cable connected until FRPB reports completion, then reboot the device and verify the setup wizard completes without an account prompt.

Flashing & flash reset

Flashing restores known-good firmware. FRPB matches the firmware package to the exact model and build before writing, and verifies the partition images first, so a mismatched package is rejected instead of half-flashed.

  • Confirm the model number, region code and build number match the firmware package exactly.
  • Charge the battery above 50% and never disconnect mid-write — a partial flash is how devices become soft bricks.
  • Use the flash reset option when the device cannot boot but the bootloader is still reachable; use EDL/BROM recovery only when no normal mode is available.
  • Keep the generated log — it contains the exact sequence needed to diagnose any failure.

4. Troubleshooting steps

Device not detected

Swap to a data-capable cable and a rear USB port, re-run the FRPB driver installer, enable USB debugging and accept the RSA prompt. Uninstall any generic composite driver Windows bound automatically, then reconnect.

OEM unlocking toggle is greyed out

The unit is carrier-locked or policy-locked, or the device has not been connected to the internet since the last reset. FRPB refuses to continue in this state — it is a bootloader restriction, not a tool error.

Operation fails at 30–60%

Almost always a cable, hub or power problem. Use a short known-good cable on a rear port, charge the phone above 50%, close other USB-consuming tools and retry the identical operation.

Fastboot shows no devices

The phone is in the wrong mode or the fastboot driver is not bound. Re-enter the bootloader, reinstall the driver, and confirm with a fastboot devices scan before starting the unlock.

Device boots to a bootloop after flashing

Boot into recovery, wipe cache, and if the loop persists re-flash the stock package for the exact model and build. Never re-lock the bootloader while the firmware is mismatched.

Licence not recognised

Sign in again in the desktop app and confirm the licence is bound to this machine. If the key still fails, contact support at support@frpb.in with your order ID — never share the key publicly.

Disclaimer: FRPB is a device recovery utility intended strictly for authorized device owners and certified repair technicians. Users must own or have legal authorization for the devices they service. Use of FRPB to bypass security protections on unauthorized devices is strictly prohibited.

Documentation FAQ

Installation, driver, bootloader unlock, flashing and licence questions answered for FRPB Desktop.

Where do I download the official FRPB installer?

Always use the download button on frpb.in or the official GitHub release asset (FRPB-Recovery-V2-Setup-2.0.0.exe, v2.0.0). FRPB is never distributed through third-party mirror sites, ad-wrapped download portals or WhatsApp file transfers.

FRPB does not detect my phone — what should I check first?

Confirm you are using a data-capable USB cable and a rear-panel USB port rather than a hub. Then re-run the one-click driver installer inside FRPB, enable USB debugging, and accept the RSA fingerprint prompt on the device. If the phone still does not appear, switch the device into Download, Recovery or fastboot mode and let FRPB re-scan.

Do I need ADB, Odin or a separate fastboot tool installed?

No. FRPB bundles its own ADB/fastboot binaries and a one-click OEM driver installer, so nothing else needs to be installed or added to your PATH. Installing third-party Odin or platform-tools builds alongside FRPB is a common cause of driver conflicts.

Will unlocking the bootloader erase my data?

Yes. Every vendor-sanctioned bootloader unlock performs a mandatory userdata wipe, which also removes the encryption keys protecting internal storage. Back up everything you need before starting — the wipe is not reversible.

Can I relock the bootloader after unlocking it?

Yes on most devices, using the matching relock verb (for example fastboot oem lock or fastboot flashing lock). Relocking wipes userdata again and is refused if the installed firmware or custom recovery is not signed by the vendor, so restore stock firmware first.

Is FRPB legal to use?

FRPB is intended strictly for authorised device owners and certified repair technicians. You must own the device or hold explicit written permission from its owner before running any unlock, bypass or flash operation.

What should I do if a flash or unlock operation fails midway?

Do not unplug the device. Leave it connected, keep FRPB open and re-run the same operation — most mid-flash failures recover on a clean retry with a stable cable and a charged battery. If the phone is stuck in a bootloop or EDL/BROM mode, follow the bootloop recovery workflow and only then contact support with the operation log.

Where do I get help if the documentation does not cover my case?

Support runs through the official Telegram channel and support@frpb.in. Include the device model, Android version, the exact FRPB operation you ran and the log excerpt. We never ask for your Google account password or your FRPB licence key.

Support