Manually Windows Phone Font Change

 

Edit: For the complete change have to edit 5 fonts one by one, Regular, Bold, Light, Semibold and Semilight.

It works with Windows Phone 8.1 and Windows 10 Mobile

READ CAREFULLY:
DO NOT USE OTHER FONTS WITHOUT BEING EDITED, CAN BE YOUR APPLIANCE OCCUR IN LOOPING INFINITE AND YOU BE BOUND TO A RECOVERY

Obs.¹ have done Interop/Unlok

Obs.² Enable Full FS Access

Obs.³ Having a registry editor ( vcREG )




NEW METHOD

1- With the Full FS Access mode connect the device to the PC and navigate to the C: \ This PC \ Windows Phone \ Phone \ Windows \ Fonts and paste the fonts source (attached at the end of post)

2- Edit the following records (note the value before editing so you can return if you do not like)

HKEY_LOCAL_MACHINE - STRING

PATH = SOFTWARE\Microsoft\Windows NT\CurrentVersion\Fonts

KEY = Segoe UI (TrueType)
VALUE = segoeui_fontname.ttf

KEY = Segoe UI Bold (TrueType)
VALUE = segoeuib_fontname.ttf

KEY = Segoe UI Light (TrueType)
VALUE = segoeuil_fontname.ttf
  
KEY = Segoe UI Semibold (TrueType)
VALUE = seguisb_fontname.ttf

KEY = Segoe UI Semilight (TrueType)
VALUE = segoeuisl_fontname.ttf


3- Restart your machine and see the result.

 Default values of the keys,

KEY = Segoe UI (TrueType) = segoeui.ttf
KEY = Segoe UI Black (TrueType) = seguibl.ttf
KEY = Segoe UI Bold (TrueType) = segoeuib.ttf
KEY = Segoe UI Bold Italic (TrueType) = segoeuiz.ttf
KEY = Segoe UI Emoji (TrueType) = seguiemj.ttf
KEY = Segoe UI Historic (TrueType) = seguihis.ttf
KEY = Segoe UI Italic (TrueType) = segoeuii.ttf
KEY = Segoe UI Light (TrueType) = segoeuil.ttf
KEY = Segoe UI Semibold (TrueType) = seguisb.ttf
KEY = Segoe UI Semilight (TrueType) = segoeuisl.ttf
KEY = Segoe UI Symbol (TrueType) = seguisym.ttf 

Download vcREG.xap
Download WPV-XAP-Deployer 2.0
Download WP8.1 SDK Tools Lite Setup Av1.00.zip 
Download BuxtonSketch.zip language pack 


You Tube Video Tutorial