Cheetah Tool

Cheetah Tool — Fast & Reliable Phone Engineering Tool

4 min read

What is Cheetah Tool?

Cheetah Tool is a multi-brand phone engineering tool designed for fast unlock, FRP bypass, IMEI repair, and firmware flash operations. The tool emphasizes speed — hence the "Cheetah" name — with optimized processing for common operations across MediaTek, Qualcomm, and UniSoc/Spreadtrum chipsets.

Core Functions

Function	Technical Detail
Network Unlock	Direct carrier lock removal via USB — patches NV data (Qualcomm) or NVRAM (MTK) to remove network lock. Also supports server-based code reading for Samsung, Huawei, LG
FRP Bypass	Google FRP removal through chipset-specific methods: MTK BROM frp partition erase, QC EDL frp erase, ADB exploit, MTP method
IMEI Repair	IMEI restoration: NVRAM edit (MTK), NV item 550/551 (QC Diag), EFS (Samsung). Fixes "Invalid IMEI" and network registration failures
Flash	Firmware flash: scatter file (MTK), firehose (QC EDL), SPD Research Download, Fastboot
Screen Lock Remove	PIN/pattern/password removal without data loss on supported models
Read Info	Device details: chipset, model, IMEI, firmware, security patch, FRP status

Supported Brands

Samsung — Galaxy S/A/M series (Exynos + Snapdragon)
Xiaomi/Redmi/POCO — FRP, Mi Account, IMEI, flash
Huawei/Honor — unlock, FRP, flash
Oppo/Realme/OnePlus — FRP, IMEI, flash
Vivo, Tecno/Infinix/ITEL, Nokia, Motorola, LG, ZTE

Cheetah Tool uses a credit-based or subscription model depending on the service.

How to Use Cheetah Tool: Step-by-Step

Purchase Cheetah Tool credits from Code-GSM
Download and install the software from the official site
Log in with your account
Select chipset/brand from the interface tabs
Connect phone via USB in the required mode (BROM, EDL, Download, or Fastboot)
Click Detect/Read Info to identify the device
Select operation (Unlock, FRP, IMEI, Flash) and execute

Tips

Cheetah Tool is designed for speed — operations are optimized for fast completion
Install USB drivers for all chipset platforms before first use
Use a short, quality USB data cable for reliable connections

Browse Cheetah Tool at Code-GSM

Device Connection Modes — How to Enter Them

Most phone servicing tools require the phone to be in a specific low-level mode before connecting. Here is how to enter each mode:

Mode	Chipset	How to Enter	Windows Device Manager shows
BROM / PreLoader	MediaTek (MTK)	Power OFF phone → press and hold Vol+ OR Vol- (varies by model) → plug in USB cable. Alternatively use test point to short BROM pads	"MediaTek PreLoader USB VCOM" or "MT65xx" or "MediaTek USB Port"
EDL (Emergency Download)	Qualcomm (QC)	Use ADB: `adb reboot edl` OR short the EDL test point on the PCB while plugging USB. Some devices: hold Vol Up + Vol Down while connecting USB	"Qualcomm HS-USB QDLoader 9008" or "QHSUSB__BULK"
Download Mode	Samsung	Power OFF → hold Vol Down → connect USB cable (newer Samsung). Older models: hold Vol Down + Home + Power simultaneously	COM port appears in Odin (yellow box)
SPD Download	Unisoc/Spreadtrum	Power OFF → hold Vol Down → connect USB cable	"SPD Interface" or "SPRD U2S Diag" in Device Manager
Fastboot Mode	All brands	Power OFF → hold Vol Down while connecting USB OR via ADB: `adb reboot bootloader`	"Android Bootloader Interface" or "Android" in Fastboot
ADB Mode	All brands	Enable USB Debugging in Developer Options (Settings → About → tap Build Number 7× → Developer Options → USB Debugging). Connect USB → authorize PC on phone	"ADB Interface" or device listed under Android devices

Troubleshooting Cheetah Tool

Problem	Solution
Device not detected in BROM mode (MTK)	Install "MediaTek USB VCOM" driver. Use Vol+ or Vol- to enter BROM depending on your MTK model. Try without battery if possible for some MTK devices
Phone not detected in EDL (QC)	Install Qualcomm 9008 driver. Some devices need testpoint short to enter EDL — check XDA or GSMForum for your model's EDL method
FRP bypass wrote successfully but FRP remains	Restart phone and perform factory reset from Settings. FRP data may need clearing at OS level after partition erase
IMEI shows "null" or "invalid" after repair	Verify the correct IMEI was programmed. MTK: check NVRAM MP0B_001 was written correctly. QC: verify NV item 550/551. Reread IMEI to confirm
Software won't launch	Run as Administrator. Disable antivirus — some AV software flags GSM tools as false positives. Install Microsoft Visual C++ Redistributable if prompted

Frequently Asked Questions

Q: What makes Cheetah Tool "fast" compared to other tools?
A: Cheetah Tool uses optimized BROM/EDL initialization sequences and pre-loaded DA (Download Agent) files to minimize device handshake time. Common operations like FRP erase and IMEI write are streamlined to minimize steps.

Q: Does Cheetah Tool support Chinese brand phones (Transsion)?
A: Yes — Tecno, Infinix, and ITEL (all Transsion brands) are well supported across both MTK and SPD chipsets.

Q: Is an internet connection required?
A: Some operations (server-based unlock code calculation) require internet. Local operations (BROM-based FRP erase, local flash) can work offline after initial software authentication.

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