Lenovo A850
Release Date 2013, August. Released 2013, August
OS N/A
Processor Mediatek MT6582M (28 nm)
Battery Li-Po 2250 mAh, removable
⚠️ Important Notice

Flashing firmware can be risky. Follow instructions carefully and backup your data before proceeding. We are not responsible for any damage to your device.

Available Firmware Files

File Name Size Download
Lenovo_A850_B140_MT6582_20140829.zip
1 GB
Lenovo_A850_S127_MT6582_20140303.zip
884 MB
Lenovo_A850_S128_MT6582_20140627.zip
884 MB
Lenovo_A850_MT6582_S121_281113.zip
496 MB
How to Flash Stock ROM
  1. Download the correct ROM file for your device
  2. Install the required flash tool
  3. Enable USB debugging on your device
  4. Boot your device into download mode
  5. Connect your device to computer via USB
  6. Load the ROM file in the flash tool and start flashing
  7. Wait for the process to complete
  8. Reboot your device
Precautions
  • Backup all important data before flashing
  • Ensure battery is at least 50% charged
  • Use original USB cable for stable connection
  • Don't disconnect during flashing process
  • Download ROM only for your specific model
  • Follow manufacturer's instructions carefully