Extra-Tools SPD Diag Tool v1.0 Free Download Latest Version

Extra-Tools SPD Diag Tool v1.0 Free Download Latest Version

Extra-Tools SPD Diag Tool v1.0 is a small and very useful free tool for Spreadtrum and some MediaTek Android phones. This tool helps users and mobile technicians do important tasks like factory reset, reboot, power off, backlight on, send AT commands, and read IMEI information. Best part it's fully offline work no need internet for use this tool.

I personally tested this tool in my mobile shop on different SPD phones. Sometimes customers come with dead display light issues, boot problems, or VoLTE disabled after flashing. This tool helped me quickly fix many small problems without using heavy software. It opens fast, connects easily, and does basic repair work smoothly.

The latest version also supports sending custom AT commands for IMS and VoLTE configuration. This is very useful when VoLTE calling is missing after software flashing or FRP work. The tool is lightweight and portable, so there is no need for installation.

Features of Extra-Tools SPD Diag Tool v1.0

• Free offline tool for SPD devices
• Simple and clean interface
• Turn ON device backlight option
• Factory reset supported
• Power OFF phone directly
• Reboot device with one click
• Read IMEI information
• Send custom AT commands
• Useful for VoLTE and IMS fixing
• Portable tool, no installation needed
• Fast device connection support
• Charging battery support option
• Small file size and smooth working

What’s New in Version 1.0

• First public release of Extra-Tools SPD Diag Tool
• Added IMEI read function
• Added AT command sending support
• Added reboot and power off options
• Improved SPD Diag port connection
• Better compatibility with Android devices

Real Shop Experience and Tested Result

One customer came to my shop with an SPD phone where the display light was not working properly after flashing firmware. The phone was turning ON, but the screen light stayed black. I used the “Turn On Backlight” option from this tool, and the issue was fixed in seconds.

Another customer had VoLTE missing after software flashing. Normal calls were working, but Jio VoLTE icon was not showing. I connected the phone in Diag mode and used the AT commands inside this tool. After rebooting the device, IMS registration started and VoLTE worked again.

For simple repair work and testing, this tool is very useful because it saves time and works without internet connection.

Supported Functions

Turn On Backlight: Fix display light issue quickly

Factory Reset: Remove user data and reset phone

Power Off: Shutdown device directly

Reboot: Restart phone safely

Read IMEI: Check device IMEI information

AT Commands: Send custom network and IMS commands

VoLTE and IMS AT Commands

Below are some tested AT commands used for enabling VoLTE and IMS related functions on supported MTK devices. These commands may help after flashing firmware or network repair work.

AT+EPCT=0,0
AT+ECFGGET="sdm_profile_prefer_sms_over_sgs_to_ims"
AT+ESBP=7,"SBP_MP_LTE_DOWNLINK_LAA_r13"
AT+EIWLCFGSET="wans_op_id","16386"
AT+ECFGSET="operator_code","16386"
AT+ECFGSET="voice_support","1"
AT+ECFGSET="video_over_ps_support","1"
AT+ECFGSET="sms_support","1"
AT+ECFGSET="ims_signaling_qci","5"
AT+ECFGSET="UA_call_precondition","0"
AT+ECFGSET="mtk_ct_volte_support","1"
AT+ERAT=6
AT+PSBEARER=1
AT+ESSP=1
AT+CGDCONT=1,"IP","ims"
AT+ESIMS=1
AT+EIMSPDN="onoff",1
AT+EIMSESS=1
AT+EIAREG=1
AT+CIREG=2
AT+EVOCD=1
AT+ESSP=1

How to Use Extra-Tools SPD Diag Tool

1. Download the tool from the download section below.
2. Extract the ZIP file using WinRAR or 7-Zip.
3. Open the extracted folder.
4. Run Extra-Tools SPD Diag Tool v1.0.exe as Administrator.
5. Turn OFF the phone and connect it using USB cable.
6. Wait until SPD Diag Port is detected.
7. Now select the function you want to use.
8. For example:
   • Click Factory Reset to wipe data.
   • Click Read to check IMEI.
   • Click Reboot to restart phone.
   • Paste AT commands and press Send.
9. After work is complete, disconnect the phone safely.

File Information

Tool Name: Extra-Tools SPD Diag Tool

Version: v1.0

File Type: Portable Tool

Compatibility: Windows 7, 8, 10, 11

Supported Devices: SPD and Some MTK Phones

License: Free

Password: no password

Download Extra-Tools SPD Diag Tool v1.0

Advantages of This Tool

• Very small and lightweight software
• No activation needed
• Easy for beginners
• Offline working support
• Fast execution of commands
• Useful for mobile repair shops
• Simple interface without confusion

FAQs

1. Is Extra-Tools SPD Diag Tool free?

Yes, this tool is completely free to use and works offline.

2. Can I use this tool for VoLTE fixing?

Yes, you can send AT commands for IMS and VoLTE related settings on supported devices.

3. Does this tool need installation?

No, it is a portable tool. Just extract and run the EXE file.

4. Which phones are supported?

Mainly Spreadtrum devices are supported, but some MTK functions also work.

5. Is this tool safe for normal users?

Yes, but always use carefully. Wrong commands can create network or software problems.