1. MohammadAli MohammadZadeh's Avatar
    I updated my phone to android 10. I have EMERGENCY CALLS ONLY bug and I need to go in Maintenance Boot Mode screen but when I press and hold the Power + Volume Down buttons, it won't to Maintenance Boot mode. It just turns on and off and again and again...
    The Maintenance Boot Mode screen doesn't appear.

    What am I not doing?
    My boot loader is crashed?
    What should I do?
    07-09-2020 03:04 AM
  2. Galactic Zoo's Avatar
    To boot the Galaxy S9 into recovery, start by powering down the device. Once it's turned off, press and hold the Bixby and volume up buttons, then press and hold the power button. Release the power button once the phone turns on (while still holding onto both the Bixby and volume up buttons). Let go of the the remaining buttons once you see the blue screen with the Android logo.
    07-09-2020 03:50 AM
  3. MohammadAli MohammadZadeh's Avatar
    To boot the Galaxy S9 into recovery, start by powering down the device. Once it's turned off, press and hold the Bixby and volume up buttons, then press and hold the power button. Release the power button once the phone turns on (while still holding onto both the Bixby and volume up buttons). Let go of the the remaining buttons once you see the blue screen with the Android logo.
    thanks for your help. your suggestion is for recovery mode. I need to go to the Maintenance Boot mode.

    like this
    The problem in maintenance Boot mode since update. Help!-http___tapatalk.imageshack.com_v2_14_11_30_f78050bc1e27850266f730357c8ca1ad.jpg
    07-09-2020 06:13 AM
  4. Galactic Zoo's Avatar
    Apologies! Try Press and hold the Power+Volume down buttons until the device powers off (approx. 10 seconds).
    The Maintenance Boot Mode screen will appear after a little while
    07-09-2020 06:32 AM
  5. MohammadAli MohammadZadeh's Avatar
    Apologies! Try Press and hold the Power+Volume down buttons until the device powers off (approx. 10 seconds).
    The Maintenance Boot Mode screen will appear after a little while
    That's exactly my problem. The screen doesn't appear! the phone just shows me the logo of galaxy s9 and after that turns on and off, and repeat this circle.
    07-09-2020 08:02 AM
  6. Galactic Zoo's Avatar
    Hmmm. Can you try this to see if it cures the emergency call issue:-
    Go to the Home Screen of the device
    Extend the notification bar from the top by swiping down from it
    There should be a quick shortcut there for the Aircraft Mode, look for it and then tap it to activate the mode
    Bear in mind that this will shut your phone off from all networks including Mobile Data and Wi-Fi. Make sure you are not doing any downloads while doing this
    Wait for about 5 seconds with your phone in Aircraft mode
    After waiting, tap on the Aircraft mode once again to disable it and return your phone to normal
    Wait for your phone to finish connecting to its mobile network
    Test to see if you can now make regular phone calls
    07-09-2020 09:33 AM
  7. mustang7757's Avatar
    I updated my phone to android 10. I have EMERGENCY CALLS ONLY bug and I need to go in Maintenance Boot Mode screen but when I press and hold the Power + Volume Down buttons, it won't to Maintenance Boot mode. It just turns on and off and again and again...
    The Maintenance Boot Mode screen doesn't appear.

    What am I not doing?
    My boot loader is crashed?
    What should I do?
    Hi welcome!

    How did you update to andriod 10 , through odin?
    07-09-2020 09:45 AM
  8. MohammadAli MohammadZadeh's Avatar
    Hi welcome!

    How did you update to andriod 10 , through odin?
    Hi
    yes.
    07-09-2020 10:09 AM
  9. MohammadAli MohammadZadeh's Avatar
    Hmmm. Can you try this to see if it cures the emergency call issue:-
    Go to the Home Screen of the device
    Extend the notification bar from the top by swiping down from it
    There should be a quick shortcut there for the Aircraft Mode, look for it and then tap it to activate the mode
    Bear in mind that this will shut your phone off from all networks including Mobile Data and Wi-Fi. Make sure you are not doing any downloads while doing this
    Wait for about 5 seconds with your phone in Aircraft mode
    After waiting, tap on the Aircraft mode once again to disable it and return your phone to normal
    Wait for your phone to finish connecting to its mobile network
    Test to see if you can now make regular phone calls
    I've done all this before, but it doesn't work...
    07-09-2020 10:19 AM
  10. Galactic Zoo's Avatar
    OK. What is the exact model and what firmware did you flash?
    07-09-2020 10:28 AM
  11. mustang7757's Avatar
    Hi
    yes.
    Did you load each firmware file in their slots in odin?
    07-09-2020 10:48 AM

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