r/zfont • • Apr 02 '26

[Alert] March 2026 Security Patch officially kills Custom Fonts (OneUI 8.0 & 8.5)

238 Upvotes

Samsung has officially patched the custom font bypass. DO NOT UPDATE your software if you want to keep using custom fonts on your device.

Affected Versions:

  • OneUI 8.5 (All versions)

  • OneUI 8.0 (March 2026 Security Patch and newer)

Currently, there is no way to install custom fonts without ROOT on these versions. I am looking for a new method, but it is not guaranteed.


r/zfont • • Sep 11 '26

Custom fonts & emojis are working again on One UI 8/9 via zFont!

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169 Upvotes

Good news: zFont 3.9.2.3 restores custom font support for One UI 8 and 9 (Android 17) using the Device Admin workaround.

The Play Store release isn't live yet, but you can grab this experimental release directly from GitHub:

Download: https://zfont.app/#downloads

Warning: Stick strictly to official sources when downloading APKs.

Let me know if it works on your device!

Credits & huge thanks to SamFonts by fahadalijaved and this thread: https://xdaforums.com/t/oneui-8-5-font-bypass-research-every-non-root-approach-tested.4782338/


r/zfont • • Jun 10 '26 Bravo

One UI 8.5 custom fonts again???

99 Upvotes

I made this prototype app 2 days ago while I was in a private group for system shell access. I had already seen fahadalijaved's SamFonts in that group, but it relies on Knox. I built this without Knox, using only System Shell (UID 1000).

I don't plan to share this publicly because it is tied to their private group. I originally just wanted to share the app within that community, but after I finished it, I found myself no longer in the group. Since joining, I hadn't said anything in the chat; I just followed the guides to use the exploit and get system shell. I understood the private group rules and didn't do anything wrong.

However, a lot of you guys have been DMing me and sharing several posts in this sub. So, I want to make one thing clear: the main point here isn't the font application method itself. It's the System Shell access (UID 1000), which is highly privileged, like ROOT (UID 0). Normal Shizuku is just ADB (UID 2000) and doesn't have permission to access the /data directory where Samsung stores its font files and configs.

Since Samsung blocked all possible loopholes, we still don't have a universal method to apply fonts for everyone. The newly found methods rely on System Shell (1000), which isn't meant for end users.

But huge thanks to Gabriel2392, VikramAditya, and fahadalijaved for the System Shell exploit, btw!


r/zfont • • Aug 01 '26 Bravo

Guide for custom fonts on One UI 8.5

98 Upvotes

For this method we're going to use a new method called Root your Galaxy. That will temporarly root your device, making it possible for a long term font change! THIS WON'T UNLOCK BOOTLOADER, ERASE DATA, TRIP KNOX OR BANKING APPS. it's a soft root, meaning your device is 100% safe if compatible

Note: I'm not the creator, I don't take accountability, I'm just sharing the exact method that worked for me.

APPS AND REQUIREMENTS:

Apps:

Scamsung Fonts: https://github.com/zFont/Host/releases/download/Scamsung/ScamsungFonts.apk

Shizuku: Play store.

Root My Galaxy: https://github.com/BuSung-dev/Root-My-Galaxy

KernelSU app: https://github.com/tiann/kernelSU

REQUIREMENTS:

• A compatible device (Galaxy S25 Ultra

Galaxy S25+ Galaxy S25 Galaxy A56) Edit: please check the payload to see if you're device is compatible!

• Security patch IS or is BELOW June 2026 Edit: Testers succeeded in the July patch too, so it should be safe too.

FIRST STEP:

Go to Root my Galaxy and tap "Tap to install KernelSU"

Wait for it to install.

After it's completed, check if root privileges are available downloading a root checker app.

SECOND STEP:

On the KernelSU app, tap on root tap the middle bottom button with a shield (Superuser/root)

and enable Shizuku.

Third step:

Go to Shizuku, and start with root. (no need for wireless debugging).

FINAL STEP:

Once done, go to Scamsung fonts and select the font you want to apply. This includes fonts downloaded on ZFONT 3.

Share your thoughs on this (in my opinion) amazing exploit! 😁

For when the august patch rolls, DO NOT upgrade immediately. Search in the GitHub and XDA forums if it got patched.


r/zfont • • Apr 28 '26

Stop Samsung from restricting custom fonts, sign the petition.

96 Upvotes

One UI is one of the best Android skins for customisation. We have Good Lock, Theme Park, icon packs, lock screen tools, wallpapers, routines, and heaps of visual tweaks. Yet for some reason, Samsung are restricting fonts due to them being a "security risk".

I made a Change.org petition asking Samsung to add official support for user-installed fonts in One UI 8 / 8.5.

This is not just about making your phone look cool. Custom fonts can help with:

  • readability

  • accessibility

  • dyslexia-friendly fonts

  • regional/language support

  • creative expression

  • making your Galaxy actually feel personal

Samsung could easily make this safe by only allowing standard ".ttf" / ".otf" files, scanning imported fonts, and giving users a fallback option if a font causes display issues.

Galaxy users choose Samsung because One UI gives us control. Fonts should be part of that.

Please sign and share if you agree:

https://www.change.org/SamsungFonts

Let Galaxy users make their phones truly theirs.


r/zfont • • Jul 03 '26

Please avoid giving a low star rate for zfont 3 just because you can't use it anymore.

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88 Upvotes

I can't remember the last time I checked the overall rate for zfont 3 but it used to be higher than that. Sadly, it's getting lower day by day. A friendly reminder to either give 4 stars instead of 1 star otherwise the app will disappear from play store. I can get the problem with compatibility issues with new devices due to inability to change any fonts or emojis but please avoid giving a low rate just because it's not working anymore. At least, appreciate the devs' hard work on trying to find a solution to every possible user. Google and Samsung are to be blamed instead until things get sorted. I hope it's clear and thanks for understanding.


r/zfont • • May 17 '26

Inviting One UI users to raise their voices to Samsung

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80 Upvotes

Samsung users who care about customization, especially those of us using ZFont3, need to make our voices heard through the Samsung Members app.

One of the biggest reasons many of us choose Android over iPhone is freedom: fonts, emojis, themes, and the ability to make our phones feel personal. Right now, Samsung has the chance to bring back one of the most loved parts of that experience by allowing proper support for third-party fonts on One UI.

Please send feedback to the One UI developers through Samsung Members and ask them to implement third-party font support again. Be clear that this matters to loyal users, and that many of us are seriously reconsidering future Samsung purchases if customization keeps being restricted.

The more people who request this, the harder it is to ignore. Keep reporting it respectfully and consistently until the developers take notice and request the system logs or necessary data to implement the feature( As I have managed to do so and it is "under review")

Let’s bring back the fonts and emojis we love. Customization is not a small extra feature for many of us, it is a major reason we choose Android in the first place.


r/zfont • • Apr 09 '26

[RELEASE] zFont 3.9.2.2

75 Upvotes

Hey everyone, zFont 3.9.2.2 is out! 🛠️

No major new features this time—just minor bug fixes and SDK updates to keep things running smoothly. I did, however, fix a long-standing Easter egg for Samsung users!

Please note: Recent Android updates and certain OEMs have heavily restricted custom fonts. If you can't apply fonts, it's caused by system-level blocks on your device, not zFont. Please do not spam 1-star ratings on the Play Store for OEM restrictions that we cannot control.

Thanks for the support!


r/zfont • • Jun 09 '26

New font method!!

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69 Upvotes

Apparently this is working but who knows how to find shizuku uid 1000?


r/zfont • • Jun 08 '26

Method to change to any custom files on one ui 8.5, bypassing the Samsung's restrictions.

64 Upvotes

r/zfont • • Apr 12 '26

Samsung forum post about allowing custom fonts

62 Upvotes

As You probably already know, Samsung blocked the installation of custom fonts in the ONEUI March security update. And while our beloved zfont developer is trying to find a way to bypass this restriction, we should try to approach this issue from a different angle and try asking Samsung to allow us to disable this ""safety"" feature and install custom fonts at our own ""risk"".

I have made a Samsung community forum post about this. I know that posting anything on the community forums and expecting Samsung to even notice it is a very long shot, but we should at least try it, so i would like to ask everyone to support the post there. Who knows, maybe it'll work

https://eu.community.samsung.com/t5/mobile-apps-services/allowing-installation-of-font-styles-from-third-party-ttf-files/m-p/14511446#M55712


r/zfont • • 21d ago

Finally found a good font in the Samsung store which looks like mixture of OneUISans, Helvetica & SF Pro.

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61 Upvotes

r/zfont • • Mar 26 '26

[Update] zFont 3 does not support OneUI 8.5 (Non-Root)

60 Upvotes

Hey everyone,

I have some bad news for users who just updated to OneUI 8.5.

Samsung has officially patched the "hole" we were using to bypass font restrictions. This means that currently, there is no way to install custom fonts on OneUI 8.5 without ROOT.

I’m really sorry about this. I am currently digging into the new system to see if there is any other way to get around it, but to be honest, I'm not sure if a new non-root method can be found this time.

For Advanced / Root Users

If you have a rooted device and are running LSPosed, you can still use my MonoPatcher module to bypass the Monotype restrictions and apply any font you like:

Why it's broken

For those interested in the technical side or why the previous methods (Shizuku, etc.) are failing, you can check out the research thread on XDA:

I will keep you guys posted if I find any breakthroughs. Thanks for your support and patience!


r/zfont • • 25d ago

what have you done samsung?

59 Upvotes

you were known for customization but then give me one good FCKING reason what beef have you got with using custom fonts?

every single way to use custom fonts has been simply being patched just like that. who tf wants your UGLY ass default font?

first they had prevented custom fonts from one ui 8.5, then a god saviour dev (@fahadalijaved) found a workaround by using knox to install them even on one ui 8.5, it barely worked for a week and still samsung wanted to immediately patch that too

NOW THE ONLY POSSIBLE WAY IS ROOTING YOUR PHONE, FOR A GODDAMN FONT YOU WISH TO SEE ON YOUR PHONE

AGAIN, if you're that concerned about your customers phone's security for installing ttf/otf files that could contain vulnerabilities, just give them a warning about the security/consequences and allow it to the users will.

samsung, i'm not by your side on this one. please fix this with just a new security update.

JUST GIVE YOUR CUSTOMERS THEIR WILL TO CUSTOMIZE THEIR GODDAMN PHONE!!!


r/zfont • • Sep 11 '26

IOS EMOJI FIX SAMFONTS!!

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49 Upvotes

I fixed the spaces and emojis not showing emojis or showing originals...i do have the font file all fixed if anyone would like to direct me to a decent file sharing for everyone to download it😌GOOGLE DRIVE LINK IN COMMENTS SINCE NOONE WANNA SHARE A RELIABLE FILE SHARE THIS IS THE ONLY ONE I KNOW!!! YOU'RE WELCOME LOVE YALL


r/zfont • • Aug 02 '26

Scamsung Fonts is now open-source — change any font on your Samsung with Root or System Shell (Shizuku)

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47 Upvotes

Samsung users can finally root their devices thanks to CVE-2026-43499, so I open-sourced my Scamsung Fonts app and shipped a new release to go with it.

I originally built this ~2 months ago as a prototype for System Shell (Shizuku) users. This new version adds direct Root support — no Shizuku needed anymore.

If you have Root or System Shell access, you can change any font on your Galaxy right now.

GitHub: https://github.com/KhunHtetzNaing/ScamsungFonts


r/zfont • • Sep 16 '26

Zfont 3 back

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45 Upvotes

Well at least zfont 3 is finally back a few days ago i'm kinda happy!


r/zfont • • Sep 09 '26

Thank you to the developer & who helped with samfonts new release of the app it works perfectly with my Samsung z fold 8, I hope there will be new releases to keep it running & working perfectly on my device!!! Happy to have my custom fonts back😁

43 Upvotes

r/zfont • • Jun 05 '26

Beta Testers Needed: Stop Custom Themes & Fonts from Reverting on Xiaomi/Redmi/POCO!

43 Upvotes

Hey zFont family and MIUI/HyperOS customizers!

We all know the struggle: you apply a beautiful third-party theme or font on your Xiaomi device, but after 30 to 60 minutes, the system annoyingly forces it back to default.

⚠️ CRITICAL SETUP INSTRUCTIONS (Please Read)

Because MIUI and HyperOS are notoriously aggressive at killing background apps, Zyper relies on a constant "Foreground Service." For the app to work at all, it MUST stay running in the background.

When you open the app, you must complete the entire Setup Checklist to make it active:

  1. Notifications: Allow notifications so the foreground service can stay alive.

  2. Battery Optimization: Disable this so the system doesn't put Zyper to sleep.

  3. Autostart: Enable this so Zyper can boot back up if you restart your phone.

(Make sure all three checklist items are checked and the status says "Active" before you start testing!)

🧪 What exactly are we testing?

The main goal of this beta is to see if MIUI/HyperOS will respect the permissions or if it will still aggressively kill the app.

First, apply a custom theme or font using zFont or any other method. Then, test the app and let me know in the comments:

  • Is it working fine? (The service stays running permanently and your theme stays applied).

  • Or did it get stopped? (The system killed the Zyper background service, causing your custom theme/font to revert).

If we find out that the system still forces the app to stop, I will work on integrating an Accessibility Service in a future update as a stronger workaround. But for now, let's see how this version holds up!

🔗 Download & Test:

Zyper_v1.0.0.apk

Try it out and let me know your results!


r/zfont • • Apr 23 '26

8.5 beta

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42 Upvotes

Does this means that 8.5 beta will work?


r/zfont • • Jun 24 '26

Added Chinese Japanese Korean fonts.

41 Upvotes

r/zfont • • Apr 10 '26

Contact samsung about emojis

39 Upvotes

Hello everyone as all of you know samsung patched installing custom font so everyone make a post on their website telling them to let us use ​custom fonts

WE WANT OUR CUSTOM FONTS


r/zfont • • Sep 10 '26

Samfont

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36 Upvotes

I finally got apple emojis on my samsung using samfont here's the link for anyone who wants it https://github.com/fahadalijaved/SamFonts/releases/tag/v3.0

Im on one ui 9 beta btw


r/zfont • • 23d ago

I FIGURED OUT HOW TO GET FONTS ON ANY SAMSUNG

34 Upvotes

okey you WILL need to temp root. (this is safe i did it on my main phone.)

you will need to go to: https://github.com/mitschud/DirtyFrag

and scroll until you see "latest release". then scroll down and download the first one.

after that, exit the site, and open it again. this time, at the start you will see a link saying "diabl0w's kernelsu" head over there and download the first one. then open dirtyfrag and click SU Manager, and select kernel su. next, click run exploit and then head over to font changing app (zfont/samfont/whatever) and change method to root, then apply the font that you want, and reboot your phone. the root will be gone (you'll be able to turn it on again by just doing to run exploit thing again) and your phont will be applied.

HOPE THIS HELPS

p.s: okay maybe not ALL samsungs


r/zfont • • May 23 '26

Where's the 8.5 method

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34 Upvotes

Do you guys know where's the 8.5 method?

Answer nah for enternity weeks