New update for the Asus Zenfone 2 Laser fixes volume related bug

A new update is now rolling out to the Asus Zenfone 2 Laser smartphones. The new update is now globally available and you can download it on your phones. The update is available only for the Asus Zenfone 2 Laser (ZE601KL) model. However, this is a patch update, so it doesn’t contain any new features.

The latest software build is V21.40.1220.2153 and you can download it now from the update section. This update brings a major fix for a bug related to the volume control. Some of the Zenfone 2 Laser devices were experiencing an issue which restricts from adjusting volume levels when the user is in handsfree mode.

However, it contains some other improvements as well. Check the changelog here:

1. Security patch update.
2. Fix LINE APP volume could not be changed at Handsfree mode.

3. Improve Bluetooth performance.
4. Fix when playing music volume burst issue.
5. Update GMS APK.

Specifications of Zenfone 2 Laser: 
  • Platform
    Android™ 5.0
  • Color
    Black/Ceramic White/Silver/Purple/Aqua Blue/Sheer Gold/Glamour Red
  • Dimensions
    143.7 x 71.5 x 3.5 ~ 10.5 mm (LxWxH)
  • Weight
    140 g (with battery)
  • CPU
    Qualcomm MSM8916 QuadCore 1.2GHz
    Qualcomm MSM8916 QuadCore 1.0GHz
  • Memory
  • Storage
    8GB/16GB/32GB eMCP Flash
    5GB free lifetime ASUS WebStorage
  • Memory Slot
    MicroSD card (up to 128 GB)
  • Connectivity Technology
    WLAN 802.11 b/g/n
    USB 2.0
    Bluetooth V4.0+EDR +A2DP
    Dual Micro SIM card
    SIM1 Support2G/3G/4G
    SIM2 Support2G/3G/4G
    Dual SIM Dual Stand By
  • Network Standard
    Data Rate: 
    DC-HSPA+: UL 5.76 / DL 42 Mbps
    LTE Cat4:UL 50 / DL 150 Mbps
    2G :
    GSM :
    3G :
    WCDMA :(WW version)
    850MHz(5)/900MHz(8)/1900MHz(2) /2100MHz(1)
    WCDMA :(TW/JP version)
    800MHz/850MHz(5)/850MHz(6)/900MHz(8)/1900MHz(2) /2100MHz(1)
    4G :
    FDD-LTE: (WW version)
    FDD-LTE: (TW/JP version)
    FDD-LTE: (IN version only)
    TDD-LTE: (IN version only)
    ASUS phone 4G/LTE band compatibility varies by region. Please check compatibility with local carriers If intending to use your ASUS phone outside the original purchase region.
  • Navigation
  • Display
    5inches, HD 1280×720,IPS
    Corning® Gorilla® Glass 4
  • Battery
    2070 / 2400 mAh Equipped with removable lithium battery
  • Camera
    Front 5 Mega-Pixel
    Rear 8 Mega-Pixel
    0.03 second laser auto-focus
    Wide View
    LED Flash
    Rear 13 Mega-Pixel
    0.03 second laser auto-focus
    Wide View
    LED Flash

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