EZ Root : old exploit still in part working

[Rex Africanus]

Hey guys and gals, I got a old rockchip tablet locked in kiosk mode. The adb is limited, the hardware buttons don't respond to boot recovery, and it seems almost impossible to find the stock rom for the device. However, I used an old rooting exploit I found on this site to get me into the stock recovery. I believe if it had been written for this device it would have rooted the device since the stock recovery allowed it pass the verification. I tweaked it myself to give it the correct address but my version needs signing. This is why I'm here. I need someone to sign my version so I can see if this tablet will finally be rooted.
The original:https://mega.nz/file/pYVljYLD#uptBl5...DCl-AFor5E6dDk

My tweaked version: https://mega.nz/file/EZMBWSYK#IRrQDL...46VRHFin7uIOEY

[Rex Africanus]

I have been searching how an update.zip made by Finless was created with absolutely no success. However, I did find an Android app that may help some of you using a custom recovery who would like to edit Roms, OTA and update.zips without needing to resign the file. The app is called Zarchiver Pro. I searched high and low to find an app that would make this task easy on Android. Zarchiver Pro gets the job done. ( I do not work for the developer).

Now that that's said, anyone know how Finless signed or have the same release keys of his "Root rk3128" ez_ root update.zip found here: https://forum.freaktab.com/forum/tv-...72-root-rk3128

Your help would be greatly appreciated. Thank you.