Steps :-

1. Enter DFU Mode with Checkra1n Patch

2. Open iRamdisk Expert Tool

3. Cick IPWNDFU Button

4. Click Bootdevice Button

5. Click Check Boot Access

6. if backup saved already you will see Activate button, if backup not saved you will see Activation Backup Button and click

Features :-

CALL / SMS WORKS ✅

UNTETHETED ✅

NO AVOID TO RE-LOCK ✅

NO JB REQUIERED ✅

BANK APPS NOT DETECTING JB ✅

NO BATTERY DRAIN ✅

NO NEED INSTALL DEPENDECIES ✅

https://mega.nz/folder/GT4hXJTK#Te1EyOd9gmJqCXfe–L4Zw
Iramdisk expert All versions, and some vedeo tutorial download link here above.

For version 4.0.5 link here.
https://mega.nz/file/3bwVTTiK#1QORyHgh4aC4IHAAgwRxDr2owWwxAKGxZm6ZbJpHUio