Crucial Warning: Ensure MediaTek USB VCOM Preloader drivers are installed prior to connecting the device. Always select "Download Only" when loading the scatter file in SP Flash Tool. Never select "Format All + Download", because formatting the physical eMMC storage wipes the protected NVRAM partition blocks, resulting in permanent loss of factory baseband calibration and invalid dual IMEI addresses.
Download Firmware for Lenovo A6800
A6800_USR_S26269_1509011254_Beta2_CMCC_CN.rar
Official factory service stock ROM for the Lenovo A6800 China Mobile variant. Features MediaTek MT6732 scatter file, preloader, boot, recovery, system, and cache images on Android 4.4.4 KitKat.
MD5: c27e3b530667081b4020bc8352d7c59b
Flashing Overview for Lenovo A6800
- Download and extract the official Lenovo A6800 RAR firmware package to your Windows computer.
- Install MediaTek USB VCOM Preloader drivers to ensure proper hardware communication.
- Launch SP Flash Tool as administrator, click Scatter-loading, and choose MT6732_Android_scatter.txt.
- Confirm the operation mode is set to "Download Only" and click the green Download button.
- Power off the phone, remove and reseat the BL242 battery, hold Volume Down, and connect the microUSB cable.
Expand preparation checklist for Lenovo A6800
- Verify your device model is Lenovo A6800 by checking the regulatory sticker under the removable 2150 mAh battery (model BL242).
- Install official 64-bit MediaTek USB VCOM drivers on a Windows PC (disable Driver Signature Enforcement on Windows 10/11 if needed).
- Extract the RAR firmware package using WinRAR or 7-Zip to a root directory without spaces or symbols (such as C:Lenovo_A6800).
- Confirm that MT6732_Android_scatter.txt and matching raw partition images are present in the extracted folder.
- Verify the removable 2150 mAh battery holds at least 40% charge before starting the flashing process.
- Connect a reliable microUSB 2.0 cable directly to a rear motherboard USB port to maintain stable handshake voltage.
Compatibility & Bootloader Notes
Flashing stock firmware via SP Flash Tool writes partition blocks directly over the MediaTek MT6732 Boot ROM (BROM) / Preloader protocol and does not require an unlocked bootloader.
Ready to Flash This Firmware?
Full step-by-step instructions for Lenovo A6800, including prerequisites, error fixes, and screenshots, are on FlashGuideHub's SP Flash Tool guide.
Frequently Asked Questions
The MT6732 transitioned Lenovo's budget lineup from legacy 32-bit ARMv7 Cortex-A7 cores (found on MT6582 chips like the Lenovo A680) to modern 64-bit ARMv8 Cortex-A53 cores clocked at 1.5 GHz. It also upgraded graphics to the ARM Mali-T760 MP2 GPU and integrated a native 4G LTE Cat.4 modem, providing significantly higher memory throughput and processing efficiency.
The Lenovo A6800 uses an eMMC 4.5 flash memory architecture mapped by Master Boot Record (MBR) and Extended Boot Record (EBR) partition tables. The partition boundaries defined in MT6732_Android_scatter.txt allocate dedicated blocks for the preloader, boot image, recovery, system, cache, userdata, and the hardware NVRAM calibration sectors.
The CMCC_CN tag indicates that the firmware was customized for China Mobile. The baseband modem configuration is tuned specifically for China Mobile's TD-LTE frequencies (Bands 38, 39, 40, and 41) as well as proprietary TD-SCDMA 3G standards (Bands 34 and 39). It does not include European FDD-LTE Band 20 or WCDMA 2100 MHz configurations.
The Lenovo A6800 utilizes a removable 2150 mAh Lithium-Ion battery carrying model number BL242. Flashing requires a standard microUSB 2.0 cable connected to the phone's bottom port. Because the battery is user-removable, technicians can perform clean hardware resets by pulling the pack for 10 seconds to fully reset the MT6732 power management integrated circuit (PMIC).