My Asus Zenfone 3 max mobile signal disappeared after updating to Android Oreo, please help....

ibrahimfarismibrahimfarism Level 1
edited September 2020 in ZenFone Max Series

Please tell us some basic information before asking for help:

  1. Model Name: Asus Zenfone 3 Max ZC520TL
  2. Firmware Version: 15.11.1810.14
  3. Rooted or not: Not
  4. Frequency of Occurrence: it"s been around one week
  5. APP Name & APP Version (If your issue relates to the app): There is no

In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.



  • Hi ibrahimfarism,

    Sincerely apologize for any inconvenience caused.

    1. Please try resetting your network settings: (Settings > System > Advanced > Reset options > Reset Wi-Fi, mobile & Bluetooth)

    2. Please try with SIM cards by different carrier and check if the problem remains./Please try putting your SIM card into different phones and check if it can work normally.

    3. Please tell us your preferred network settings. (ex: 2G/3G/4G or 4G only)

    4. Please tell us your carrier name, whether VOLTE is enabled.

    5. Please try in safe mode:

    Thank you.

  • Asus 3 max zc553kl has same problem how can I fix it??? After updated to Oreo it doesn't work on LTE mode/4g only

  • Kapan update pie

  • ZenFone laser 3 have no signal indore/room while same in other phone showing network ,have any software /technical update plz suggest

  • Hi kcrkindia

    Thank you for your asking. Kindly try some stay-at-home troubleshooting tips below:

    1. Please try reset Network: Settings>System>Reset options>Reset Wi-Fi, mobile & Bluetooth

    2. Please try to enter "Safe Mode". If the function works well in Safe Mode yet the issue remains out of Safe Mode, please check on any disturbance from the installed 3rd party apps.

    # How to enter and exit "Safe Mode"

    3. Also, please try "the Factory Reset" 

    Settings>System>Reset options>Erase all data(factory reset)

    Please note that once the Factory Reset is completed, all data, apps, settings and personal information will be deleted.

    4. If the issue persists after the Factory Reset, please try SMMI test 

    Calculator> type ".12345+=">SMMI TEST>Single Test>SIMCard Test/SIM Signal Test/Wi-Fi Test

    If any of the SMMI tests fails, kindly bring your device to the nearest ASUS repair center for device checking:

    If it is impossible to access the service center during Covid-19 period, please try Call us:

This discussion has been closed.