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

SPD Extra-Tools Diag Tool v1.0 Free Download Latest VersionItel, Infinix, Tecno, Lava,Micromax FRP Bypass 100%Tested

 Last week I got a tecno spark 8c. The customer forgot the FRP lock. I thought I would easily unlock it. But after connecting the phone to the PC, the driver doesn't show. After trying for 30 minutes: SPD Extra-Tools Diag v1.0 this worked.

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.

That’s where the Extra-Tools SPD Diag Tool v1.0 comes in. This isn’t some bloated, complicated software that takes hours to learn. It is a lightweight, "straight-to-the-point" utility designed specifically for technicians who need to work with SPD devices in Diagnostic (Diag) Mode.

Whether you need to repair an IMEI, wipe factory data, or simply read device info without the hassle of expensive dongles, this tool is a lifesaver. Let’s dive into what makes this v1.0 release a must-have in your digital toolbox.

What is Extra-Tools SPD Diag Tool?

In simple terms, this tool forces Spreadtrum-based smartphones into a communication state called Diag Mode. Once the phone is in this mode, the software can talk directly to the phone's internal processor to perform deep-level repairs. It supports a wide range of budget-friendly brands like Itel, Infinix, Tecno, Lava, and Micromax that run on Unisoc/SPD chips.

Key Features of v1.0

The beauty of this tool is its simplicity. Here are the 6 standout features:

• One-Click Diag Mode: Quickly switch your device from a powered-off state or Normal mode into Diag Mode.
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• IMEI Repair: Fix "Invalid IMEI" or "Null" issues after a bad flash (make sure to follow your local laws regarding IMEI repair!).
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• Factory Reset (Wipe): Remove screen locks, patterns, and PINs by wiping the userdata partition in seconds.
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• Read Info: Instantly get the hardware version, software version, and CPU details.
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• No Dongle Required: This is a free-to-use tool. You don't need a physical box or a monthly subscription to get it running.
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• Wide Chipset Support: Compatible with older SC6531 chips all the way up to the newer Unisoc Tiger series.

Supported Functions

Beyond the basics, the Extra-Tools SPD Diag Tool handles several advanced tasks that usually require paid tools:

1. NV RAM Read/Write: Back up your network data before flashing so you don't lose signal.
2. FRP Bypass: While primarily a Diag tool, it helps in clearing the Factory Reset Lock on many SPD models.
3. Port Detection: Automatically scans and finds the correct SPRD U2S Diag port so you don't have to guess in Device Manager.
4. Format FS: A deeper level of formatting for those stubborn "Phone Encrypted" or "Storage Full" errors.

Common Errors & Easy Fixes

Even the best tools can act up sometimes. Here are three common issues I’ve run into and how I fixed them:

1. Error: "Waiting for Device" (Permanent)

• The Cause: Usually a bad cable or a missing driver.
• The Fix: Check your Device Manager. If you see "Unknown Device" with a yellow triangle, right-click it and manually update the driver to the Spreadtrum COM port. Also, try a different USB port on your PC (the ones on the back of a desktop are more stable).

2. Error: "Failed to Open Port"

• The Cause: Another software (like Miracle Box or Z3X) is using the COM port.
• The Fix: Close all other GSM tools and restart the Extra-Tools app. Sometimes a quick PC reboot is the only way to "release" the port.

3. Error: "Diag Mode Failed"

• The Cause: The phone's bootloader might be locked too tight, or you're using the wrong boot key.
• The Fix: Try holding both Volume Up and Down while connecting. If that fails, the device might need to be "Booted" via a specific .pac file in a flash tool first.

How to Use: A Step-by-Step Guide

Don't worry, the process is pretty straightforward. Just follow these steps:

Step 1: Install Drivers

Before opening the tool, make sure you have the Latest SPD/Unisoc USB Drivers installed on your Windows PC. Without these, the tool won't "see" your phone.

Step 2: Launch the Tool

Download and extract the Extra-Tools SPD Diag Tool v1.0. Right-click the .exe file and select Run as Administrator.

[ SPD Extra-Tools Diag Tool v1.0]

Step 3: Connect the Phone

Power off the phone completely. Hold the Volume Down or Volume Up button (boot keys vary by model) and plug in the USB cable.

Step 4: Enter Diag Mode

Click the "Enter Diag" button in the tool. If your drivers are correct, you will see a new "SPRD U2S Diag" port appear in the dropdown menu.

Step 5: Perform Task

Select your desired function (like "Read Info" or "Wipe Data") and hit Start. Wait for the "Success" or "Done" message before unplugging.

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

FAQ:  👇

Q1: Does this tool work on the latest Android 13 or 14 devices?

It works on many, but not all. If the security patch is very recent (2025/2026), you might need a specialized loader file. However, for 90% of the budget SPD phones in the shop, it works perfectly.

Q2: Is it safe to use?

Yes, it's a clean utility. However, always disable your Antivirus temporarily, as many GSM tools are flagged as "False Positives" because they interact with USB ports at a low level.

Q3: Will this delete my photos and contacts?

If you use the Wipe Data or Factory Reset function, YES. Everything will be erased. Always warn the customer first!

Q4: Do I need internet to use this?

Nope! This tool works completely offline, which is great for shops with spotty Wi-Fi.

Supported Functions

• Turn On Backlight: Fix display light issue quickly
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• Factory Reset: Remove user data and reset phone
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• Power Off: Shutdown device directly
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• Reboot: Restart phone safely
• Read IMEI: Check device IMEI information
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• AT Commands: Send custom network and IMS commands

File Information

Tool Name:    SPD Extra-Diag Tools 

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

Final Thoughts

The Extra-Tools SPD Diag Tool v1.0 is a solid, "no-frills" addition to any technician's collection. It’s small, fast, and does exactly what it says on the tin. If you're tired of fighting with Unisoc phones, give this one a download.

Download Link:-👇

👉Download👈Happy repairing!

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