How To Guide Updating the firmware (If it does not appear in the settings)

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Adaoh

Senior Member
Jun 13, 2021
133
61
ASUS ZenFone 8

Updating from an update file​

I have been seeing a lot of posts about people not receiving the OTA on their phone, and got tired of linking my instructions, so I decided to make a separate post

  1. Download the version that you need from the Asus Zenfone 8 Support page (Note that if you are not on the latest Android 11 firmware (30.12.112.72), you will not be able to Android 12. So you need to do these steps with the latest Android 11, and then re-do them for the Android 12 firmware)
  2. Plug in your phone to your computer, make sure the computer is trusted and that you can transfer files from the PC to the phone.
  3. Move the zip file of the update in the base directory of the phone (The same directory as Alarms, Downloads, etc).
  4. Wait for the transfer to finish, then you can unplug your phone if you want.
  5. Reboot the phone
  6. After the reboot, the phone will take a few seconds/minutes and will notify you that an update file was found, select the option to update the phone
  7. It will then extract the update and install it all by itself, the normal update procedure starts from there

 
Last edited:

eVen123

Member
Jul 31, 2018
25
7
I've spent a couple of hours yesterday to get this thing working. Basically, the Android 12 update will only update from specific image. I will try to describe the whole process below.

You have to do this process to upgrade all the way up to 30.12.112.7. If you have anything else, it won't work.

First, I've reverted back to stock, using
WW-ZS590KS-31.0803.0403.54-user_20210831-release.zip
... which contains the full flash scripts.

In my case, I had to do these delta upgrades manually (so copying the zip to root of sdcard memory).
  1. UL-I006D-ASUS-30.12.112.56-1.1.31-user.zip
  2. UL-I006D-ASUS-30.12.112.62-1.1.31-user.zip
  3. UL-I006D-ASUS-30.12.112.72-1.1.31-user.zip
  4. UL-I006D-ASUS-31.1004.0404.81-1.1.25-2111-user.zip
Number 4 is actual android 12 update. Hope this helps anyone.
 

Adaoh

Senior Member
Jun 13, 2021
133
61
ASUS ZenFone 8
I've spent a couple of hours yesterday to get this thing working. Basically, the Android 12 update will only update from specific image. I will try to describe the whole process below.

You have to do this process to upgrade all the way up to 30.12.112.7. If you have anything else, it won't work.

First, I've reverted back to stock, using
WW-ZS590KS-31.0803.0403.54-user_20210831-release.zip
... which contains the full flash scripts.

In my case, I had to do these delta upgrades manually (so copying the zip to root of sdcard memory).
  1. UL-I006D-ASUS-30.12.112.56-1.1.31-user.zip
  2. UL-I006D-ASUS-30.12.112.62-1.1.31-user.zip
  3. UL-I006D-ASUS-30.12.112.72-1.1.31-user.zip
  4. UL-I006D-ASUS-31.1004.0404.81-1.1.25-2111-user.zip
Number 4 is actual android 12 update. Hope this helps anyone.
I think that what is needed is to update to the latest firmware, then Android 12. So if you are already on Android 11, but not latest firmware, install it with the instructions, then do the same to update to Android 12's latest version.

What part does not work? Please be more specific and also, you should re-read the steps more carefully, in case you missed something
 

drum94

Member
Jan 9, 2022
18
0
The android version I currently have is 30.12.112.72
I downloaded version 31.1004.0404.81 from the asus site to have android 12 on my zenfone 8.

I copied the folder without extracting it and put it in my phone's internal storage next to the other folders.

Once the copy was finished I restarted my phone so that it offered me the update but it did not offer it to me.

I do not understand why .
 

eVen123

Member
Jul 31, 2018
25
7
The android version I currently have is 30.12.112.72
I downloaded version 31.1004.0404.81 from the asus site to have android 12 on my zenfone 8.

I copied the folder without extracting it and put it in my phone's internal storage next to the other folders.

Once the copy was finished I restarted my phone so that it offered me the update but it did not offer it to me.

I do not understand why .
It also depends what prefix your installation has. See the first letters
UL-...

If you are from some other region, it could be that UL- is not a fitting upgrade option for you. As far as I can tell, it's not possible to tell which of the versions you have.
 
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drum94

Member
Jan 9, 2022
18
0
I give you the build number which is marked in the software information:
RKQ1.2021022.002.30.12.112.72

I have the right version or not suddenly?
 

Mecallie

Senior Member
Sep 16, 2011
149
36
Thank you for the quick tutorial. I was doing this via fastboot till now.

However: I upgraded to the latest firmware BEFORE Android 12. No issues.

Then I upgraded to the Android 12 firmware: stuck. Gave me some kind of ram dump, reboot returned me to the same error: bootloop. I was able to reboot and get to the bootloader. After selecting "recovery" it actually booted Android. And now for the weird part: it looks like I have a mix of Android 11 and Android 12 now! The phone is all but unusable for how slow it is. But the main UI looks like Android 11 still, but things like the reboot screen now look like Android 12. Bizarre...

I was at least able to enable ADB debug again, so I think I will be able to recover the phone. Still a weird issue though. Don't know if flashing with fastboot would have prevented it...
 

amenthes

Member
Jun 23, 2013
7
7
OnePlus 3
ASUS ZenFone 8
Going from WW-30.12.112.82 to WW-31.1004.0404.107 worked flawlessly, i did not lose settings or data on that upgrade (but I want to stress that a good backup is STILL a very good thing to have!) It then started downloading the 31.1010.0410.43 upgrade on its own. (shown in the ui as SKQ1.210821.001.31.1010.0410.43)

Why didn't I upgrade to the latest one myself? Simple: I goofed up and downloaded the older one.
 
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    Updating from an update file​

    I have been seeing a lot of posts about people not receiving the OTA on their phone, and got tired of linking my instructions, so I decided to make a separate post

    1. Download the version that you need from the Asus Zenfone 8 Support page (Note that if you are not on the latest Android 11 firmware (30.12.112.72), you will not be able to Android 12. So you need to do these steps with the latest Android 11, and then re-do them for the Android 12 firmware)
    2. Plug in your phone to your computer, make sure the computer is trusted and that you can transfer files from the PC to the phone.
    3. Move the zip file of the update in the base directory of the phone (The same directory as Alarms, Downloads, etc).
    4. Wait for the transfer to finish, then you can unplug your phone if you want.
    5. Reboot the phone
    6. After the reboot, the phone will take a few seconds/minutes and will notify you that an update file was found, select the option to update the phone
    7. It will then extract the update and install it all by itself, the normal update procedure starts from there

    1
    The android version I currently have is 30.12.112.72
    I downloaded version 31.1004.0404.81 from the asus site to have android 12 on my zenfone 8.

    I copied the folder without extracting it and put it in my phone's internal storage next to the other folders.

    Once the copy was finished I restarted my phone so that it offered me the update but it did not offer it to me.

    I do not understand why .
    It also depends what prefix your installation has. See the first letters
    UL-...

    If you are from some other region, it could be that UL- is not a fitting upgrade option for you. As far as I can tell, it's not possible to tell which of the versions you have.