Release Date
2015
OS
Android 5.0 (Lollipop), upgradable to 6.0 (Marshmallow)
Processor
Intel Atom Z3580 (4 GB RAM model)Intel Atom Z3560 (2 GB RAM model)
Battery
3000 mAh
⚠️ 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 |
|---|---|---|
|
Asus_ZenFone_2_ZE551ML_5.0_OTA.zip
|
1 GB | |
|
Asus_Zenfone_2_ZE551ML_CSC_ZE551ML_2.2.30.1_160819_5.0_QFIL.zip
|
852 MB |
How to Flash Stock ROM
- Download the correct ROM file for your device
- Install the required flash tool
- Enable USB debugging on your device
- Boot your device into download mode
- Connect your device to computer via USB
- Load the ROM file in the flash tool and start flashing
- Wait for the process to complete
- 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