Itel W4001
Itel W4001 is a Itel firmware file listed under Itel, distributed as Itel_W4001_V009_211221_SPD.zip with a download size of 852 MB. It is built for Unisoc (Spreadtrum)-based devices. It is flashed with SPD ResearchDownload (or UpgradeDownload). It was published on June 16, 2026. This page has been viewed 9 times. It is available to download free of charge. Before flashing, verify the file matches your exact device model and back up your data.
About Itel W4001
If your Itel W4001 has been giving you trouble, reinstalling the stock firmware is often the cleanest fix. Here you'll find the full Itel flash package along with the details to check before you begin. Whether an update corrupted the system or a root attempt went wrong, the factory ROM puts the Itel W4001 back to square one. File Name: Itel_W4001_V009_211221_SPD.zip File Size: 852 MB Back up your files, charge the Itel W4001 past 50 percent, install the matching drivers, and only then begin. When it finishes, the Itel W4001 restarts with clean factory software. Match the firmware to your variant and follow each step in order.
File Details
| File name | Itel W4001 |
|---|---|
| Package | Itel_W4001_V009_211221_SPD.zip |
| Brand / Platform | Itel |
| Category | Itel |
| Platform | Unisoc (Spreadtrum) |
| Flash tool | SPD ResearchDownload (or UpgradeDownload) |
| Package format | ZIP archive |
| File size | 852 MB |
| Date added | June 16, 2026 |
| Price | Free |
How to flash Itel W4001 with SPD ResearchDownload
- Confirm Itel W4001 matches your exact device model and that it is intended for Itel hardware.
- Back up your personal data, as flashing firmware can erase the device. Charge the battery above 50%.
- Download the file (852 MB) using the button above and extract it on a Windows PC.
- Install the SPD / Unisoc USB drivers, then open SPD ResearchDownload (or UpgradeDownload).
- In the tool, load the .pac firmware file from the extracted folder.
- Start the flash, then press Start in the tool, then connect the powered-off phone while holding Volume Down (boot key).
- Wait for the success message before disconnecting. Leave "Erase NV" unticked unless you intend to wipe IMEI and calibration data.
Guides for this firmware
- Connecting Unisoc Phones to SPD ResearchDownloadSPD ResearchDownload (also known as UpgradeDownload) is a specialized flashing tool used to install stock firmware on devices powered by Unisoc (Spreadtrum) chipsets. To connect a phone to this tool…
- Flashing .pac Files with SPD ResearchDownload GuideSPD ResearchDownload (also known as UpgradeDownload) is a specialized flashing tool used to install stock firmware on devices powered by Unisoc (Spreadtrum) chipsets. It is primarily used to unbrick…
- How to Use SPD ResearchDownload: Firmware Flashing GuideSPD ResearchDownload (also known as UpgradeDownload) is a specialized flashing tool used to install stock firmware on devices powered by Unisoc (Spreadtrum) chipsets. It allows technicians and users…
Frequently asked questions
Is Itel W4001 free to download?
Yes, Itel W4001 can be downloaded free of charge from this page.
How large is the download?
The Itel W4001 package is 852 MB.
Which tool do I need to flash Itel W4001?
Itel W4001 is Unisoc (Spreadtrum) firmware, so it is flashed with SPD ResearchDownload (or UpgradeDownload) using the .pac firmware file.
Which devices is this firmware for?
This file is intended for Itel devices. Always confirm it matches your specific model before flashing.