Is there anyone who has original Verizon firmware?
Damn, Unfortunately, camera stopped working.
Its a hard brick so no fastboot or recovery or anything. Need to figure out how to flash qualcomm to get it working i think.
Anyways, here is the firmware:
Okay, Here are the steps. Before anything else though, I should warn you that I have not been able to get safetynet to pass. So if you have apps that require safetynet to pass, this may not be the way to go.
First you will need the ENG firmware:
Also Asus Flash tools v 126.96.36.199:
I am assuming you know adb and such. If not, search the forums and get the adb tools.
Using adb, Reboot to bootloader. ( adb reboot bootloader )
Load the .raw file in the asus flash tool, select v520KL and flash.
Once flash is done, unlock bootloader by going into bootloader (adb reboot bootloader) then type (fastboot oem unlock.)
Here is the patched_boot.img I used if you want to just try to flash that and see if it will work. This is for the eng firmware.
Go into bootloader and flash. (fastboot flash boot patched_boot.img)
Install magisk manager and test it out.
If you wish to patch the img yourself, the steps are below (still working on it):
So now we have the phone unlocked, and the software is very basic. We also need the boot.img file to patch since we do not have TWRP. Since I couldn't get it from the raw file (the extracted file is invalid with a size of 0 bytes) I decided to extract it from the phone. But to extract from the phone we need root. So for this next step, temporary root will have to do.
You can get temp root by using KingoRoot. Use the PC version and you will get root. This is just so we can extract the files from the phone itself.
I need to find the steps for the next steps again, but the basics is, extract boot.img from the phone. Patch it using magisk manager and then flash the patched_boot.img in bootloader mode. I had google play working(chinese version) but once i removed kingoroot it kept crashing. I currently have magisk and it gives me the root permissions but safetynet fails. I will retry this tomorrow and see if I can fix the safetynet issue and update this post with the steps.
Also I seem to have borken recovery mode on my phone. That may be because I tried flashing bunch of other stuff before I managed to root it so I do not know if it will be the same situation to you or not. I believe after I flashed ENG firmware, i had access to recovery mode at one point, but I may have just messed it up. Either way, Expect updates in the near future.