Q1. Why can't I use the normal SP Flash Tool for this tablet?

Even though this is a MediaTek device, the manufacturer (Advan) has provided the official firmware in a compressed .cpb format. This format is not compatible with SP Flash Tool and requires the specific factory software it was designed for, which is the QGDP tool.

Q2. Will this update my tablet to Android 9 (Pie)?

No. This is the official Android 8.0 Oreo firmware for the Advan G-Tab 8001. No official updates to newer Android versions were released for this model.

Q3. My tablet won't detect my SIM card after flashing. What should I do?

This can happen if the tablet's NVRAM partition, which stores the IMEI number, gets corrupted. First, check your IMEI by dialing *#06# - if it shows "Invalid," the data is lost. This is a complex issue to fix and requires separate tools like Maui META to rewrite your original IMEI number.

Advan G-Tab 8001 Stock Firmware (.cpb for QGDP)

The Advan G-Tab 8001 is an 8-inch budget tablet from the Indonesian manufacturer Advan, featuring 4G LTE connectivity and running Android 8.0 Oreo. It’s designed for users needing a larger screen for media and browsing on the go. If your tablet is bricked, stuck on the Advan logo, or experiencing persistent software glitches, a full firmware flash is the most effective solution to restore it to its original, stable condition.

Important Note: This stock firmware is packaged in the `.cpb` format and must be installed using the QGDP Assembly Tool. This process is different from the more common SP Flash Tool and will completely erase all data on your device.

⚠️ Prerequisites: Before You Begin

Click Here for the Essential Pre-Flashing Checklist

Backup Your Data: Ensure any important files, photos, and contacts are backed up, as this procedure will wipe the tablet’s internal storage.
Charge Your Tablet: The battery should be charged to at least 50% to prevent it from shutting down during the flashing process.
Windows PC & USB Cable: You will need a Windows computer and the tablet’s micro USB data cable.

📱 Quick Device Specifications

Device: Advan G-Tab 8001
Release Year: ~2019
Chipset: MediaTek MT8735B
Display: 8.0″ HD IPS LCD (1280×800)
Battery: 4300 mAh
OS: Android 8.0 Oreo
RAM/Storage: 2GB / 16GB

🛠 Required Tools & Downloads

File / Tool	Download Link
QGDP Assembly Tool	Download Tool
MediaTek USB VCOM Drivers	Download Drivers

⬇️ Advan G-Tab 8001 Stock ROM / Firmware

Model	Android	Chipset	Type	Download	Size
G-Tab 8001	8.0 Oreo	MT8735B	QGDP (.cpb File)	Google Drive	1.3 GB

⚡ Quick Flashing Guide

Download and install the MediaTek VCOM drivers. Extract the firmware (Advan_G-Tab_8001...QGDP.zip) to get the .cpb file, and extract the QGDP Tool.
Launch the QGDP Assembly Tool. If prompted for a password, enter 369 or 123456.
Click “Config” in the top left, then “Select CPB File,” and browse to the .cpb firmware file. Click “Apply.”
Click the large “Start” button to put the tool into flashing mode.
Power off your tablet completely. Press and hold the Volume Down button, then connect the tablet to your PC with the USB cable.
The tool will detect the device and start flashing. Once the progress bar is at 100% (green), the process is finished. Disconnect and reboot the tablet.

For a more detailed, step-by-step walkthrough of this process, please refer to our full guide:
👉 Full Tutorial: How to Flash .cpb Firmware with YGDP/QGDP Tool

❓ Frequently Asked Questions (FAQs)

Q1. Why can’t I use the normal SP Flash Tool for this tablet?: Even though this is a MediaTek device, the manufacturer (Advan) has provided the official firmware in a compressed .cpb format. This format is not compatible with SP Flash Tool and requires the specific factory software it was designed for, which is the QGDP tool.
Q2. Will this update my tablet to Android 9 (Pie)?: No. This is the official Android 8.0 Oreo firmware for the Advan G-Tab 8001. No official updates to newer Android versions were released for this model.
Q3. My tablet won’t detect my SIM card after flashing. What should I do?: This can happen if the tablet’s NVRAM partition, which stores the IMEI number, gets corrupted. First, check your IMEI by dialing *#06# – if it shows “Invalid,” the data is lost. This is a complex issue to fix and requires separate tools like Maui META to rewrite your original IMEI number.

🔧 Device-Specific Troubleshooting

QGDP Tool Fails to Detect the Tablet: This is the most common issue and is almost always driver-related. First, reinstall the MediaTek VCOM drivers. Second, follow the connection sequence precisely: power off the tablet, click “Start” in the tool, press and hold Volume Down, and only then connect the USB cable.
“Invalid CPB File” Error in QGDP: This error means the firmware file is either corrupted or not compatible with your version of the QGDP tool. Try to download the firmware file again. If it still fails, you may need a different version of the QGDP tool.
Flashing Fails Before Reaching 100%: A flash that stops midway can be caused by a faulty USB port or cable. Always use a high-quality cable and a reliable USB port (preferably a USB 2.0 port). If it consistently fails at the same percentage, it could indicate a failing eMMC (storage) chip on the tablet, which is a hardware issue.
Stuck on Advan Logo After a Successful Flash: If the tool shows 100% but the device won’t boot, a factory reset is necessary. Boot into recovery mode (usually by holding Power + Volume Up), and in the menu, select “wipe data/factory reset.” This will clear old data conflicts and allow the new system to boot.