If you are looking for an all-in-one Android repair tool for free, then, Mysterious-Dev Tool V1.0.9 is built to help technicians fix common Android OS problems quickly. The tool supports Qualcomm, MediaTek (MTK), Unisoc SPD, Huawei Kirin, Samsung Exynos, & Google Tensor to make it useful for daily repair work.
In this post, we’ll explain what Mysterious-Dev Tool V1.0.9 is, main features, and why you should try it.
More: EFT Pro Dongle Latest Setup
What is Mysterious-Dev Tool V1.0.9?
Mysterious-Dev Tool V1.0.9 is a free mobile repair software for Windows that allows users to remove screen lock, bypass FRP (Factory Reset Protection), flash firmware, repair IMEI, and fix OS-related issues easily.

Whether you are working on a locked Samsung phone or a bricked other Android device, the Mysterious-Dev Tool allows you to fix forgotten passwords, erase Google account lock (FRP), Flash stock firmware, remove KG lock, enable ADB, Auth Bypass, and Reset Mi Cloud, etc.
Why to use:
- Supports multiple chipsets (Qualcomm, MTK, Unisoc)
- Completely free, no activation or license required
- Easy-to-use interface, suitable for beginners
- Saves time during daily repair work
Read: MDM Fix Tool
Key Features:
Samsung Functions
- One-click FRP removal via Test Mode or MTP
- Knox Guard bypass on supported models
- Factory reset directly from the tool
MediaTek (MTK) Features
- FRP unlock using Brom Mode
- Auth bypass for firmware flashing
- Safe backup and restore of IMEI (NVRAM/NVDATA)

Qualcomm (EDL) Support
- Flash firmware in EDL mode
- FRP removal using correct loaders
- EFS reset to fix network issues
Xiaomi & Huawei Tools
- Mi Account removal on supported MIUI versions
- Huawei ID removal on older Kirin devices
- Fastboot flashing support
Read: Download Z3X Pandora PRO Tool
Supported Brands
The tool supports many popular brands, including:
- Samsung
- Xiaomi, Redmi, POCO
- OPPO, Vivo, Realme
- Motorola
- Huawei, Honor
- Infinix, Tecno, Itel
…and many more MTK and Qualcomm-based devices.
Mysterious-Dev Tool V1.0.9 Changelog
🛠️ General Fixes:
- ✅ FIXED: Direct Unlock SIM operations failure.
- ✅ FIXED: The “Konx is Not Support” error bug.
- ✅ FIXED: Samsung Read Cert & Write Cert operations.
📲 Full List of Restored & Fixed Models:
1️⃣ Google Pixel (Direct Unlock):
- Support All Android Versions & Latest Security Patches.
- Auto Disable OTA included.
- Supported Models:
- Pixel 3, 3 XL, 3a, 3a XL🔹 Pixel 4, 4 XL, 4a, 4a XL🔹 Pixel 5, 5a🔹 Pixel 6, 6 Pro, 6a🔹 Pixel 7, 7a, 7 Pro🔹
- Pixel 8, 8 Pro🔹 Pixel 9, 9a, 9 Pro, 9 Pro XL, 9 Pro Fold🔹 Pixel Fold, Pixel Tablet
2️⃣ Samsung JDM (Unlock SIM):
- Fixed Models:🔹
- DL Series:
- SM-S215DL, SM-S134DL, SM-S124DL, SM-S115DL, SM-S111DL🔹
- M Series:
- SM-M115F, SM-M115M, SM-M025F, SM-M022F/M/G, SM-M017F, SM-M015F/G, SM-M013F
- A Series:
- SM-A226B/BR, SM-A215U/U1, SM-A207F/M🔹 SM-A115A/AZ/F/M/U/U1, SM-A107F/M🔹 SM-A047F/M, SM-A045F/M🔹 SM-A037F/M/U/U1, SM-A035F/G/M, SM-A032F/G/M🔹 SM-A025A/F/G/M/U/U1/V🔹 SM-A015F/G/M/U/U1, SM-A013F/G/M
3️⃣ Samsung Cert Method (Unlock):
- Fixed Models:
- S7 / S7 Edge: SM-G935T1/R4/R6/P/T/A/V/W/W8/U,
- SM-G930V/P/U/A/AZ/T/T1/R6/R4/VL
- J Series:
- SM-J727P/V/VPP, SM-J250F/G/M/Y/N
- SM-J510F/FN/GN/FQ, SM-J500F/FN/G/H/M
- SM-J410F/FN/G, SM-J415F/FN/G/GN
- SM-J610F/FN/G/GN, SM-J810F/FN/G/GN
- SM-J327V/VPP, SM-J320V/VPP
- S Active: SM-G891A/V/U, SM-G892A/V/U
- A Series (Old):
- SM-A605F/FD/FN/G/GN, SM-A606Y🔹
- Note 7/FE: SM-N930A/T/P/V/R4/R6/W8/T1
- S8 / Note 8: SM-G950W/D/U/U1, SM-G955U/U1/W, SM-N950U/U1/W
- S5 Series:
- SM-G900T/T1/T3/A/AZ/F/FD/FQ/I/K/L/M/V/W8/6V/6W/8V/8W
- Japan/Other Models:
- SCV33, SCV34, SCV35, SCV36, SCV37, SCV38, SCV39, SC-01K, SC-02K, SC-03K, SC-03J, SC-02H, SC-02J, SC-02G, SC-04F, SCL23
- TracFone:
- SM-S120VL, SM-S320VL
4️⃣ LG Unlock Services:
- Fixed Models:
- K Series:
- LM-K420YM/YMW/BMW, LM-K500QM/QM5/QM6/MM/TM/QN🔹 LM-K300QM/QM5/QM6/CMR/MM/AM🔹 LM-K400AM/AKR, LM-K510BMW/ZMW/EMW/HM/HMW🔹 LM-K520BMW/EMW/HMW, LM-K525BMW, LM-K410HM/EMW/BZMW/FMW🔹
- Q Series:
- LM-Q730MM/TM/QM/QM5/QM6/AM/AM4/QN/HA/BAW🔹 LM-Q630UM/BAW/EA/EAW/H/N/HA🔹 LM-Q710FA/HS/YBW/YMW/ZA/ZM/RA/FM/GX/HSW/NAW/YAW/EM🔹 LM-Q310N, LM-Q510N, LM-Q520N🔹
- X Series:
- LM-X420HM/AS/AS8/EM/EMW🔹 LM-X525EAW/HA, LM-X520EMW/HM/ZMW🔹 LM-X510EW, LM-X540BMW/EMW/HM/ZMW🔹 LM-X410FC/FO/EO/EOW/FCW/BTW/BCW, LM-X430ZMW/EMW/HM🔹 LG-X420AS8/AS, LM-X120HN🔹
- Misc: EC211002, EC211001, EA211002, EA211001, EC1002
Do read: Z3x SamsTool Online
Mysterious-Dev Tool V1.0.9 Download Link:
Tool Name: Mysterious_Dev_Unlock.zip
Tool Size: 200MB
Developer:
Compatibility: Windows
Type: zip
Type: Free
How to use Mysterious-Dev Tool
Here, we provide step-by-step instructions to install the Tool on your Windows PC. Before that, download the latest version setup from above.
Do check: B-GSM MTK Tool
System Requirements
- OS: Windows 7 / 8 / 10 / 11 (32-bit or 64-bit)
- Internet: Required for downloading files or checking updates
- Drivers: USB drivers for MTK, Qualcomm, or Spreadtrum chipsets.
Read: Borneo Knox Erase Tool
Step 1: Extract the Setup
- First, download Mysterious-Dev v1.0.9.
- Extract the setup using WinRAR or 7-Zip.
- Open the extracted folder.
- Disable the Antivirus/Defender Temporarily.
Step 2: Install the Setup

- Run the setyp as Administrator.
- The installation wizard will open.
- Install the setup by clicking Next >

- Click Agree > Install > Finish.

Read: Zenon Unlock Tool
Step 3: Launch the Tool

- Run the tool from the Desktop shortcut.
- The login window will be opened.
- The login credentials are already filled in the tool.

- Click Login.
- In case, the credentials are not shown, then use the above login credentials.
Read: Nut Utility Tool & Keygen
Step 4: Start Flashing or Unlocking

- Now the tool will open.
- Connect your phone via USB (powered off if required)
- Choose the chipset tab: MTK / Qualcomm / SPD
- Select the operation: Flash, FRP Reset, IMEI Repair, etc.
- Follow on-screen instructions.
Also read: MRS Tool BY GSM FOYEZ
Frequently Asked Questions
Yes, currently the tool is completely free.
Yes, Its supports on Windows 8, Windows 10 and 11.
Yes, an active internet connection is needed.
Final Thoughts
The Mysterious-Dev Tool is currently a free yet efficient utility for unlocking and repairing Android smartphones. It has a wide range of features, frequent updates, and support for numerous brands.
[*] Backup Data: It is highly recommended to take a backup of your phone before using the SamPro Tool. Flash or Unlock will erase all the user data and reset the device to the factory default.
[*] Alternatives: Here are a few alternatives you can also use to fix any Android phones, i.e., UnlockTool, B-GSM MTK Tool, UMT Pro UltimateMTK for flashing stock firmware, and eliminate Factory Reset & unlock FRP.
Thanks for visiting us. Comment below if you face any problems regarding this, and we will solve your problem ASAP.
