Nope, it won't help. If you are planning to do it using TWRP, You need a zip with edited update-binary, and have to flash decrypt.zip otherwise you would lose all the data of Internal Memory.
And if you choose to do it using Stock Recovery you are bound to lose your data of internal memory, because the zip would encrypt your system partition in the end and then, data of your internal memory would become useless for you. If you choose to do it using stock recovery, don't use the zip, I have posed in step number 1, it might not work on stock recovery. That zip is only for TWRP.
The correct procedure is:
1. Flash
this zip using TWRP.
4. Then flash
decrypt.zip of pie.
(Use this zip if your system partition is decrypted, otherwise don't use it.)
5. And then reboot.
WARNING: flashing decrypt.zip is causing wifi problem for some users. Do it at your own risk. Some users reported that decrypt.zip is erasing MAC ID of wifi adapter. So I am not responsible for any such thing. I am warning you well in advance.