You cannot. The official version was never released as "19.1" without a dongle. The cracked 19.1 is distributed only through pirate channels.
One of the most common issues after a factory reset is being locked out by Google’s FRP. Version 19.1 includes multiple methods to bypass FRP on Android 6.0 to Android 10 devices. It uses test points, UART connections, or MTP-based exploits.
Samsung Tool PRO v19.1 is a capable legacy tool for technicians working with older Samsung hardware. While it provides essential services like unlocking and FRP bypass for Galaxy devices from the 2015-2017 era, it is obsolete for modern repairs.
Recommendation: Technicians should upgrade to the latest version of Z3X Samsung Tool PRO (or the new "Samsung Tool PRO 2") to support newer devices running Android 8.0 and above. Use of v19.1 should be restricted strictly to legacy hardware repair to avoid compatibility errors and security vulnerabilities.
Samsung Tool 19.1 is a legacy update for the Z3X Samsung Tool, a specialized software suite used by technicians for servicing, flashing, and repairing Samsung mobile devices. Released on March 20, 2015, version 19.1 focused on expanding support for mid-range Galaxy A-series and T-series tablets. Overview of Capabilities The tool is primarily designed for the samsung tool 19.1
hardware interface, allowing users to perform deep-level system modifications that standard consumer software cannot access. Key functions provided in this version include: Firmware Flashing : Installing or re-installing official Samsung firmware. Direct Unlocking : Removing network carrier restrictions. IMEI and Network Repair : Fixing corrupted device identity data or signal issues. EFS/QNC Management
: Reading, writing, and wiping critical system partitions (EFS/QNC) to restore cellular connectivity. New Device Support in Version 19.1
This specific update added support for several then-current models, enabling technical procedures like "READ/WRITE cert" and "auto backup to tar" for the following: Supported Models Primary Features Added Flashing, QNC Read/Write, Wipe EFS, Write CERT Galaxy Core Flashing, Unlock, IMEI/Network repair Flashing, Unlock, IMEI/Network repair Galaxy Tab S Flashing, EFS/CERT Read/Write, Direct Unlock Galaxy S3 Neo Flashing, QNC Read/Write, Wipe EFS Technical Considerations Hardware Requirement : The software requires an activated Z3X Smart Card or Box to function. Data Risks
: Operations like wiping EFS or repairing IMEI can lead to permanent data loss or "bricking" if not performed by a trained professional. Legacy Status You cannot
: As of 2026, version 19.1 is considered highly outdated. Modern Samsung devices (e.g., S24 series) require much newer versions of the Z3X Samsung Tool PRO
to handle updated security protocols like Knox and newer Android versions. Samsung Tool 19.1 Released. Small update ... - Facebook 20 Mar 2015 —
Samsung Tool 19.1 Released. Small update released Added: - support GT-I9060M (flashing, Unlock, Imei repair, Network repair, READ/ AMEEN G.S.M update to the latest version of the Samsung Tool or do you need help with a specific device repair Samsung Tool 19.1 Released. Small update ... - Facebook 20 Mar 2015 —
Samsung Tool 19.1 Released. Small update released Added: - support GT-I9060M (flashing, Unlock, Imei repair, Network repair, READ/ AMEEN G.S.M One of the most common issues after a
Because 19.1 is an older release, it does not support Samsung phones launched after 2021 (e.g., Galaxy S21, S22, S23, A52, A53, Z Fold 3/4). However, coverage for legacy devices is excellent.
Full support list (partial):
Note: Unlocking and FRP bypass for Android 11/12/13 devices requires newer versions (v25+).
Run SamsungTool.exe as Administrator. The interface will show “Samsung Tool PRO v19.1” at the top. The connected phone’s model and COM port should appear.
Solution: Reinstall Samsung USB drivers. Use a different USB port (USB 2.0 preferred). Disable “USB Selective Suspend” in Windows Power Options.
Downloading cracked Samsung Tool 19.1 is one of the riskiest things you can do for three reasons: