Messed up and my phone now cannot boot!

[abubin]

I tried to remove root.

First, I used supersu and used the full unroot setting. However, after rebooting back to android, it is still showing root.

Therefore, I used magisk uninstall. After that my phone is in boot loop with dm-verity error.

Tried to go into TWRP (still works) to install no-verity 6.0 zip but it says boot cannot be found.

So, I am now trying to install recovery.img and boot.img. However, I am unable to find recovery file for WW_15.0410.1807.75 (Android O).

Can anyone help shed some light? How can I restore back the phone without losing data?

If all else fail, what are my last resort to get the phone back to working?

Appreciate any input. Thanks!

 

[abubin]

Ok, I tried a few things and all failed. Now the phone keep looping into fastboot when I plug in the usb.

I would like to just flash to latest firmware will do. Data recovery is secondary now.

I tried AFT 1.0.0.45 but it only allow zip files. I cannot select the raw file. I tried renaming the raw to zip but it still refuse to flash. I get error saying unable to unzip. However, before that I can see the app is trying to connect to somewhere for verification. I think something about FRP. Don't know what is that.

Appreciate any input on this. Thanks.

 

[alecxs]

So, I am now trying to install recovery.img and boot.img. However, I am unable to find recovery file for WW_15.0410.1807.75 (Android O).

if you flash stock ROM, recovery is restored automatically.


https://dlcdnets.asus.com/pub/ASUS/ZenFone/ZE552KL/UL-ASUS_Z012D-WW-15.0410.1807.75-user.zip


https://dlcdnets.asus.com/pub/ASUS/ZenFone/ZE520KL/UL-ASUS_Z017D_1-WW-15.0410.1807.75-user.zip

 

[abubin]

if you flash stock ROM, recovery is restored automatically.

View attachment 5825195
https://dlcdnets.asus.com/pub/ASUS/ZenFone/ZE552KL/UL-ASUS_Z012D-WW-15.0410.1807.75-user.zip

View attachment 5825209
https://dlcdnets.asus.com/pub/ASUS/ZenFone/ZE520KL/UL-ASUS_Z017D_1-WW-15.0410.1807.75-user.zip

Thanks! I manage to flash the stock ROM and it is able to boot into the OS again.

However, I am still seeing this "DM-verity in EID" screen whenever I boot up. Is this okay? Cause I remember this screen wasn't shown previously. It supposed to show a screen saying bootloader is unlocked and some security thing. Now it's showing this EID screen. Anyway to fix it?

 

[alecxs]

if there is something like vbmeta partition, flash vbmeta.img otherwise I don't know. the screen ask for locking bootloader, but I do not recommend this. usually locking bootloader only works if every partition is stock, I doubt the locking process will fix anything.