Mysterious-Dev Tool V1.0.3 Free SIM Unlock, Flash Firmware, Partition Manager, Flashing & Repair IMEI & MEID Supports Samsung, Xiaomi, Huawei, & Motorola Works With Qualcomm, MediaTek, & Unisoc Phones

Mysterious-Dev Tool, is a very small and easy tool for mobile phone repair in software wise. It supports phones like Samsung, Xiaomi, Huawei, and Motorola. With this tool, you can remove SIM lock, remove Google lock (FRP), and install new software on the phone. It also helps when the phone is not connecting to the computer or when IMEI has a problem. The tool works with Qualcomm, MediaTek, and Unisoc phones. This is a complete free program come with a prelogin only need to click on login button and enjoy this tool.

Features Mysterious-Dev Tool:

General & Drivers:

Driver Monitoring System:

• Auto Check & Repair All Drivers (One-Click)
• Manual Check for Unisoc, Android, QCOM/MTK, ADB/Fastboot, HTC, and Huawei Drivers

Account Information:

• Server Connection Status
• Account Expiration & Credit Balance Display

ADB & Application Manager:

ADB Services:

• Check Connected Device
• Execute Custom ADB Shell Commands
• Wireless ADB Support

Application Manager:

• List All, Disabled, System, 3rd Party, and Installed Apps
• Backup APK
• Clear App Data
• Uninstall, Disable, or Enable Apps

Unlock & SIM Services:

SIM Unlock:

• Universal Unlock SIM
• Unlock SIM Google Pixel [New]

Samsung Services:

• Write & Read Certificate
• Change Serial Number [BETA]
• Change CSC Code (Change Carrier)

Qualcomm (EDL, Diag, Flash):

Flash Firmware:

• Supports XML, Patch, and MultiRaw Files
• Single & Multi Firmware Flashing

Partition Manager:

• Read, Write, Erase, and Restore Backup Partitions

EDL Services:

• Read Device Info & XML Firmware
• FRP & Factory Reset Services
• Accounts Protection & Security Data Services

Diag Services:

• Xiaomi Network Repair (e.g., Redmi K60)
• QCN Backup & Restore
• IMEI & MEID Repair

MediaTek Services:

Configuration:

• Custom Preloader & DA Agent File Support
• Exploit Authorization (BROM/Preloader)

Operations:

• Read Info, Remove FRP, Unlock/Relock Bootloader
• Factory Reset (Safe, UserData, EXT, Reset Settings)
• Read/Write/Erase NVDATA
• Remove Mi Account [Xiaomi] & Disable Update
• Remove MDM & KNOX (Infinix/Tecno/Itel)

Flashing & Repair:

• Scatter Firmware Flashing
• IMEI Repair (Flash Mode & Meta Mode)
• Patch Cert & Enable Meta Repair

Unisoc Services:

Operations:

• Brand/Model Selection by CPU
• Custom Loader Support (FDL1, FDL2, PAC)
• Factory Reset, Remove FRP (Generic & Samsung)
• Unlock/Lock Bootloader
• Read/Write/Erase RPMB
• Realme Unlock Network (BETA) & Remove MDM (BETA)

Flash & Diag:

• PAC Firmware Flashing with Repartition/Full Erase options
• Diag Mode IMEI Repair & Switch Diag

Huawei Services:

Operations:

• Kirin Chip or Model Detection
• Unlock Bootloader [Temporary]
• Remove FRP, Remove Demo, Remove Huawei ID (Direct/2nd Method)
• Repair, Backup, Write, & Erase Oeminfo

Flashing:

• Update.app/Firmware Flashing

Motorola Services:

Flashing:

• Firmware Flashing with options to Disable AVB & Ignore MD5

Mysterious-Dev Tool v1.0.3 – Changelog & Features:

General & SIM Services:

Unlock SIM Services:

• Unlock SIM Google Pixel (Supports all Android versions & latest security patches).
• Auto Disable OTA to prevent relocking.
• Universal SIM Unlock

Samsung Certificate Services:

• Read & Write Certificate (Broad model support including S7 Edge, S8, Note 8, J-Series, etc.).

Unit Services:

• Samsung Change Serial Number [BETA].
• Samsung Change CSC Code (Carrier Change).

Supported Model Lists:

📱 Google Pixel:

📱 Samsung JDM:

📱 LG:

ADB & Application Manager:

Application Manager:

• List all device apps.
• Backup APK, Clear App Data.
• Uninstall, Disable, and Enable Apps.

ADB Services:

• Comprehensive ADB command support.

Qualcomm Services:

Flash & Partition:

• Flash Firmware.
• Partition Manager: Read, Erase, Write, and Restore Backup (GPT).

EDL Services:

• General: Read Device Information.
• FRP: Remove FRP (General & Samsung).
• Factory Reset: Safe Mode, EXT4, and Screen Lock Removal (Vivo, Oppo, Realme, Samsung).
• Account Protection: Remove Mi Account (Methods 1 & 2), Remove Huawei ID.
• Samsung Specific: Remove Lost Mode, Reset/Change KG Status (Broken/Error).
• Security Data: Manage EFS and Oeminfo data.

Diag Services:

• QCN: Backup and Restore.
• IMEI Repair: Write/Repair IMEI 1 & 2, MEID, and RSA Protected IMEI.
• Xiaomi Network Repair: Extensive support for Redmi K-series (K60, K50, K40), POCO (F5, F4, X3), and Mi Series (13 Ultra, 12T, 11).

MediaTek (MTK) Services:

Authorization:

• Exploit Authorization for BROM and Preloader.

Service Operations:

• Read Info, Remove FRP, Unlock/Relock Bootloader.
• Factory Reset: Safe, UserData, EXT, and Reset Settings.
• Security: Read/Write/Erase NVDATA.
• Special: Disable Update (Xiaomi), Remove Mi Account, Remove MDM & KNOX (Infinix/Tecno/Itel).

IMEI & Flashing:

• Firmware Flasher.
• Repair IMEI: Flash Mode & Meta Mode (Auto switch), Patch Cert (New & Standard), Enable Meta Repair (Xiaomi).

Unisoc / Spreadtrum Services:

Flash Firmware:

• Write .PAC files, Restore Zip, Partition Manager.

Operations:

• Read Info, Remove FRP (Generic & Samsung), Factory Reset.
• Unlock/Lock Bootloader.
• Security: Read/Write/Erase RPMB, Remove MDM.
• Network: Realme Unlock Network.

Diag Mode:

• Switch Diag, Read Info, Factory Reset, Repair IMEI, Reboot Recovery.

Huawei Services:

Flasher:

• Huawei Protocol Support.

Operations:

• Read Device Info, Unlock Bootloader (Temp).
• Remove FRP, Remove Demo.
• Huawei ID: Remove ID (Direct & 2nd Method).
• Oeminfo: Repair, Write, Erase, Backup.

Samsung Main Services:

ADB / MTP Mode:

• Reboot to Download/Recovery.
• Factory Reset, Remove FRP (ADB), Restore IMEI (Reset EFS).
• Change CSC (Carrier).

Download Mode (ODIN Mode):

• Read PIT, Read Info, Exit Download Mode.
• Direct Functions: MTK FRP (Sec 0/1), Force Erase (Factory Reset), Remove Lost Mode Lock.

Translation & Localization:

Arabic Language Enabler:

• Adds Arabic language support to Android versions 5 (Lollipop) through 16.

HOW TO USE ?

• First, you need to download the zip file from the below link.
• Next, you can unzip all files at c: drive (important).
• Ensure you have disabled the antivirus before running the installation.
• Next, open the folder and install the setup file with some basic instruction.
• Run the shortcut from the desktop “SetupMysteriousDev.exe”.
• A login window will pop up.
• No manual login details are required — credentials are pre‑added.
• Simply click the Login button and wait for the tool to open.
• Next, you can install all drivers (included in the tool only need to one-click) if you already installed skip this step.
• Connect the phone and try to do any function.
• Enjoy !!!

Take a Backup: If you are willing to try the above tool, then please take a backup of your personal data from your Android Smartphone or Tablet. As flashing any Firmware or recovery may brick the device.

Credits: The Tool is created and distributed by the developer. So, full credits go to the developer for sharing the tool for free.