2026 compatibility note: Android 17 reached its stable release on June 16, 2026. Availability on OnePlus 15 depends on the exact model number, region, manufacturer update policy, and staged rollout. Do not assume that a device is eligible just because another phone in the same series receives the update. For custom ROMs, use Android 17 only when a maintainer has published a build specifically for the exact device codename and variant. Verify the build date, changelog, required firmware, recovery method, and known issues before downloading or flashing. If no verified build exists, state that clearly rather than presenting an unofficial or untested file as available.
Do you want to install any Custom ROM on your OnePlus 15? then we will guide you to install ROM listed below. You must be aware that you are using an Android device. Well, the biggest advantage of using an Android device is that you can customize and develop your ROM.
What is Stock ROM?
Whenever you purchase a new Android device it comes with a pre-installed ROM or stock firmware. The ROM has limited functionalities which are defined by the manufacturer and it defers according to the manufacturer. So it is the official ROM that is designed particularly for that specific device. These operating systems generally offer some standard customizations and some other device-specific support.
What is Custom ROM?
Custom ROM is an unofficial version of the OS .Android is an open-source platform that can be used by any developer to customize to build their own operating system for Android OnePlus 15s and tablets. The final customized operating system or Home built application is known as Custom ROM. Android comes with a kernel that makes it a fully standalone OS. Some developers in the Android community are customizing the Android OS by removing all unnecessary garbage apps and creating a pure Android experience for users.
This Custom ROM is updated regularly by the community and developers. Also, they fix all the bugs related to the operating system. So the Custom ROM is a gateway to experience the latest Android even if it is not supported on your device. We have listed some advantages and disadvantages of using a Custom ROM on your OnePlus 15 device, so please read them carefully before performing any actions on your OnePlus 15, and make sure to take a complete backup of your device.
Advantages of using a Custom ROM
- The major advantage of using or installing any Custom ROM is that you can upgrade your OnePlus 15 to the latest version of Android.
- You get a clean experience of pure Android without any extra customizations
- It can enhance the security, reliability, and user interface of the device.
- You’ll get Administrate Root access by default
- A Custom ROM can help you to get some advanced features and functions on your OnePlus 15.
- Afterall the smartOnePlus 15 is more about software and less of hardware
Disadvantages of using a Custom ROM
- The warranty of your OnePlus 15 will be void
- An unstable version of Custom ROM can brick your device so make sure that you are using an Authorised or genuine guide.
- After migrating to the Custom OS you will not be able to get OTA updates.
- Absence of Google Apps, Although, you can install GApps manually
Best Custom ROM for OnePlus 15
Here are the best custom ROMs available for your OnePlus 15. Once TWRP recovery is installed on your computer you can start installing any Custom ROM on your device from the list down below.
1. Android 13
Android 13 is similar to Android 12 with the latest technology and many features. This is a more polished version that supports features such as Chat bubbles, Notification history, Conversation notifications, screen recorder, new media controls, smart device controls, one-time permission, improved dark theme with the scheduling system, app suggestions, wireless android auto
2. Lineage OS
LineageOS was born after the death of CyanogenMod due to conflicts within the company. The new fork of CyanogenMod is now called LineageOS (A similar Open-source operating system for Android users). It will be the continuation of the project and will provide updates and more features continuously in the future.
Lineage OS is an open-source Android operating system. It is a popular OS that is the successor of CyanogenMod, one of the most popular custom ROM for Android. After the shut down of the CyanogenMod project, LineageOS was launched for its fans. The main advantage of using LineageOS is that it can be used without installing any Google apps with some standard customizations included.
It is the best Custom ROM available for Android devices. Lineage OS 19 ROM for the OnePlus 15 comes with a lot of features such as Customizable Status bar, Nav Bar color, Resizing Navbar, and customization, Quick Toggle feature, and other features Based on both Android 11 and Android 12
3. AOSPExtended ROM
AOSP Extended is an AOSP based ROM that provides stock UI/UX experience with useful customizations on any Android device. AOSP ROM-based device provides a very smooth experience. The source code of AOSPExtended ROM provides various cherry-picked commits from multiple other projects. They have promised to bring new features and updates every year to make it a very successful custom OS for your OnePlus 10 Initially Based on Android 12. AOSPExtended ROM provides other features for the Status bar, Notification panel, QS Tiles, navigation bar, lock screen, and system options.
More features are listed on their blog.
4. CrDroid ROM
CrDroid OS is a new custom ROM based on AOSP/ Lineage OS built from scratch by adding customization options from AOSPA, Lineage, SlimROM. It offers a great simple, customizable, and secure experience to its users. CrDroid OS and many other great ROMs are out there. The ROM brings a lot of customization options along with a Pure Android Experience.
5. Resurrection Remix
Resurrection Remix ROM is a full-featured, reliable ROM that incorporates the greatest aspects of open source ROMs, and is a perfect fit for your OnePlus 15. In addition, the builds include a slew of excellent original Resurrection Remix ROM add-ons. offers the greatest performance, customization, power, and the most up-to-date features for your smartOnePlus 15!
6. MIUI 13:
MIUI 13 is the customized version of Android developed by XIAOMI, a Chinese smartOnePlus 15 manufacturer. The OS is open-source and can be modified easily with tons of customization options. The MIUI 13 supports features such as Dual Apps, Scrolling screenshot, second space, new gallery features, quick ball, calculator, Caller id, messaging features, and much more. This OS can be a perfect Custom OS for your OnePlus 15 Based on Android 12.
7. Mokee OS
The Android Open Source Project provides the foundation for MoKee (AOSP). It includes extra localized and customized features while keeping to Material Design principles to keep the stock Android appearance.
Unlike OEMs, who release updates slowly and seldom, MoKee OS closely follows Google to deliver the most recent upgrades to our consumers, even extending support to devices that OEMs have declared outdated.
The source code for the ROMs is open source, secure, reliable, and excellent. It gives a wonderful experience by being buttery smooth and convenient.
8. XOSP OS
XOSP is an after-market firmware for a variety of Android OnePlus 15s based on CodeAuroraSources (CAF). The Xperia Open Source Project was started by @nilac for the Galaxy S+ (his old smartOnePlus 15) years ago when the ROM was called S+ Reborn. The goal of XOSP OS was to develop a bloat-free ROM with Sony Xperia-specific applications and the usual modifications that customers expect from a custom ROM. S+ Reborn was a hit, and it was ultimately transferred to a variety of devices, thus it was renamed XOSP.
9. Havoc OS:
Havoc OS is a new Custom ROM based on Lineage OS that adds a slew of new features that aren’t seen in other Custom ROMs. The ROM has a System-wide Rounded UI, Spectrum compatibility, Battery Teak features, Status bar changes, OmniSwitch and Slim recent options for fast multitasking, and many more features.
10. Pixel Experience OS
The Pixel Experience OS includes all of the functions and programs that come standard with the Google Pixel smartOnePlus 15. With this Custom ROM, you can now enjoy the true Pixel SmartOnePlus 15.
I hope this guide has helped you to install a new Custom ROM on your OnePlus 15. If you have any queries, feel free to comment down below.
11. Liquid Remix OS
It’s an Android 11 ROM with a plethora of manual UI modification possibilities. It also has Face and Fingerprint unlocking capabilities. It comes with camera2 API and Google camera app activated by default, both of which are not operating properly in Stock Rom. Another benefit of this ROM is that it allows OTA updates. There are several gestures to pick from, including the AOSP gesture, the Carbon gesture, and the stock gesture. You can easily install this custom ROM on your OnePlus 15.
12. Evolution X Custom ROM
Evolution X is a flashable Custom ROM to bring a true Pixel experience to your Android Device, with many additional configurations at your disposal. The platform provides many security patches and updates regularly. Although The ROM is based on Android 11 you must try Lineage OS first.
Important Compatibility and Safety Notes
Before downloading or installing anything, identify the exact model number and regional variant of your OnePlus 15. A phone sold under the same marketing name can use different hardware, modem bands, partitions, or firmware in different regions. Never flash a package just because its name looks similar. Match the model code, region, chipset, Android base, and build instructions exactly.
- Use the manufacturer’s official support page or a trusted project page to verify the file and its checksum where provided.
- Back up personal data and confirm that the battery is sufficiently charged before an update, reset, root, or ROM installation.
- Custom ROM installation may require an unlockable bootloader, enabled OEM unlocking, USB debugging, platform-tools, and a device-specific recovery or flashing procedure. Unlocking can erase data and may affect warranty, security features, banking apps, or DRM.
- Do not assume that Android 17, a particular ROM, recovery, kernel, or GCam port is available for every OnePlus 15. Availability must be confirmed for the exact model and variant.
Check LineageOS and Custom ROM Availability
LineageOS and other community ROMs are not universal packages. A project release number does not mean that a build exists for every phone. Search the project’s official device list and open the exact device page before downloading. If OnePlus 15 or its exact model code is not listed, do not install a build intended for a different device.
LineageOS 24 is associated with Android 17, but support must still be checked per device. Older LineageOS branches based on Android 11, 12, 13, 14, 15, or 16 may remain relevant for devices whose maintainers provide those builds. Do not describe an older branch as the newest version for a phone unless the official device page confirms it.
Read the device-specific installation guide from start to finish. Check bootloader unlock requirements, firmware prerequisites, recovery version, partition layout, required wipe steps, encryption notes, and any vendor-specific instructions. Use only the exact build and recovery intended for the device variant.
Version note: Android 11, Android 12, and Android 13 are older Android releases. Their presence in this guide is historical or relevant to a specific device/build; it does not indicate that OnePlus 15 currently runs, qualifies for, or should be downgraded to that version. Check the exact model’s official software history before following version-specific steps.
