Bios Mods -The Best BIOS Update and Modification Source

Can someone please unlock and modify dell bios latest 1.7.0, i recently updated memory from stock hynix 1600mhz 8gb ram to hyperx 16gb 2133 but in cpuz it still reads only 1600mhz, and also to increase dvmt preallocated memory to 512mb so intel hd520 graphics works well in my hackintosh, i am entirely new to this and if someone can point me on how to flash the unlocked bios if my laptop allows it, thank you, link below for the rom.
https://www.dropbox.com/s/kmz4y4xp5d4v6k...0.rom?dl=0

Hello,
Can anyone give me the unlocked bios for overclocking on my dell inspiron 5559
My specs are as follows,

OS Name    Microsoft Windows 10 Pro
Version    10.0.19041 Build 19041
OS Manufacturer    Microsoft Corporation
System Manufacturer    Dell Inc.
System Model    Inspiron 5559
System Type    x64-based PC
System SKU    06B2
Processor    Intel® Core™ i3-6100U CPU @ 2.30GHz, 2304 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date    Dell Inc. 1.7.0, 5/10/2019
SMBIOS Version    2.8
Embedded Controller Version    255.255
BIOS Mode    Legacy
BaseBoard Manufacturer    Dell Inc.
BaseBoard Product    07JM0H
BaseBoard Version    A00
Platform Role    Mobile
Secure Boot State    Unsupported
PCR7 Configuration    Binding Not Possible
Hardware Abstraction Layer    Version = "10.0.19041.1"
Installed Physical Memory (RAM)    4.00 GB
Total Physical Memory    3.71 GB
Kernel DMA Protection    Off
Virtualization-based security    Not enabled
Hyper-V - VM Monitor Mode Extensions    Yes
Hyper-V - Second Level Address Translation Extensions    Yes
Hyper-V - Virtualization Enabled in Firmware    Yes
Hyper-V - Data Execution Protection    Yes
GPU Intel HD Graphics 520

My current BIOS file has attached.
Here is the link also. https://www.dell.com/support/home/en-us/...559-laptop

Thank you for your support.