Play Integrity Fork

PIF forked to be more futureproof and develop more methodically

A Zygisk module which fixes "MEETS_DEVICE_INTEGRITY" for the Android <13 "deviceRecognitionVerdict" of the Play Integrity API. On Android 13+ ROMs this still helps to pass checks in Google Wallet and Google Messages RCS support.

To use this module you must have one of the following (latest versions):

• Magisk with Zygisk enabled (and Enforce DenyList enabled if NOT also using Shamiko or Zygisk Assistant or NoHello, for best results)
• KernelSU with Zygisk Next or ReZygisk or NeoZygisk module installed
• KernelSU Next with Zygisk Next or ReZygisk or NeoZygisk module installed
• APatch with Zygisk Next or ReZygisk or NeoZygisk module installed

About module

It injects a classes.dex file to modify fields in the android.os.Build class. Also, it creates a hook in the native code to modify system properties. These are spoofed only to Google Play Services' DroidGuard (Play Integrity) service.

Note: Unless otherwise stated, verdicts here are all referring to the Android <13 Play Integrity "deviceRecognitionVerdict" (or "<A13 PI") which was formerly SafetyNet "ctsProfileMatch", not the Android 13+ Play Integrity "deviceRecognitionVerdict" (or "A13+ PI") which relies on locked bootloader checks to pass even DEVICE integrity.

Configuration

The module is configured by editing json/list (text) files in the module directory (/data/adb/modules/playintegrityfix), by running one of the included scripts there, or by creating a file there to enable some advanced features. These are most easily done using the root file explorer app of your choice, as all should include a file editor and support script execution. The scripts also support command line arguments, which may be added when run from a root file explorer app, or when run in a root (su) shell from adb or a terminal emulator app. Unless otherwise stated, configuration changes will take effect after running the killpi.sh script to restart the Play Integrity (PI) processes, or you may also reboot.

About 'custom.pif.json' file

You can fill out the included template example.pif.json then rename it to custom.pif.json to spoof your own custom values. It will be used instead of any included pif.json (none included currently).

Note this is just a template with the current suggested default entries, but with this fork you can include as few or as many android.os.Build class fields and Android system properties as needed to pass DEVICE integrity now and in the future if the checks enforced by Play Integrity change.

As a general rule you can't use values from recent devices due to them only being allowed with full hardware backed attestation, but sets of these values can still be found which pass DEVICE integrity, and still others can also pass STRONG integrity when setup correctly. These are known as "private fingerprints" since widely publicly shared ones will get banned by Google. A script to extract a random latest Pixel Beta fingerprint is included with the module; see the autopif2 section below for usage and caveats, and expand the Resources below for information and scripts to help find a working private fingerprint.

Older formatted custom.pif.json files from cross-forks and previous releases will be automatically migrated to the latest format. Simply ensure the filename is custom.pif.json and place it in the module directory before upgrading.

A migration may also be performed manually in the module directory with a custom.pif.json present by running migrate.sh with the -a or --advanced argument (to add Advanced Settings) in a file explorer app or with sh migrate.sh --advanced in a root shell, and -f or --force if desired.

Resources

• FAQ:

  • PIF FAQ - Frequently Asked Questions (READ FIRST!)

• Guides:

  • How-To Guide - Info to help find build.prop files, then manually create and use a custom.pif.json
  • Complete Noobs' Guide - A more in-depth basic explainer of the How-To Guide above
  • UI Workflow Guide - Build/find, edit, and test custom.pif.json using PixelFlasher on PC
  • Tasker PIF Testing Helper - Test custom.pif.json using Tasker on device

• Scripts:

  • gen_pif_custom.sh - Script to generate a custom.pif.json from device dump build.prop files
  • autopif.sh - Script to extract the latest working Xiaomi.eu public fingerprint (though frequently banned and may be banned for RCS use while otherwise passing) to test an initial setup
  • pif-test-json-file.sh - Script to automate generating and testing json files to attempt to find working fingerprints
  • install-random-fp.sh - Script to randomly switch between multiple working fingerprints found by the user

• Apps:

  • FP BETA Checker - Tasker App to check the estimated expiry of the Pixel Beta fingerprint and trigger autopif2.sh to update
  • FP XEU Checker - Tasker App to check for a new Xiaomi.eu public fingerprint and trigger autopif.sh to update

About 'custom.app_replace.list' file

You can customize the included default example.app_replace.list then rename it to custom.app_replace.list to systemlessly replace any additional conflicting custom ROM spoof injection app paths to disable them. Changes take effect after a reboot.

About 'autopif2.sh' and 'killpi.sh' script files

There's intentionally no pif.json in the module because the goal remains to be futureproof, and including something that may be banned/expired within days of release would be contrary to that goal. If you don't care to have your own private fingerprint to use or don't have time to look for one currently (since very few remain) then simply run the generation script from a root manager app that supports the module Action button, or by running autopif.sh from a file explorer app or with sh autopif2.sh --strong --preview in a root shell. For arm/x86 devices wget2 is required but may be installed via addon module.

The autopif2 script generates a random device fingerprint from the latest Pixel Beta, ideally only to test an initial setup, since they expire roughly every 6 weeks from the Pixel Beta release date (dates included in the generated fingerprint), and the public mass-used ones from other modules or custom ROMs may also get banned, or may be banned for RCS use while otherwise passing Play Integrity in that time. In addition, unfortunately Pixel Beta fingerprints have changed and no longer pass DEVICE integrity, so can now only be used for STRONG integrity setups. Notable advanced command line arguments are: -m or --match matches the Pixel Beta fingerprint to the device when run on a current Pixel device; -p or --preview forces not to ignore Android Platform Preview builds (Developer Previews and Betas); and -d # or --depth # chooses the depth to crawl down the QPR Betas list when there are multiple active Betas, e.g. when QPR2 is concurrent with QPR1 the default value of 1 would get the first listed (QPR2) and -d 2 would force it to get the second listed (QPR1).

The killpi script forces the Google Play Services DroidGuard (com.google.android.gms.unstable) and Play Store (com.android.vending) processes to end, making them restart with the next attestation attempt; useful for testing out different fingerprints without requiring a reboot in between.

Troubleshooting

Make sure Google Play Services (com.google.android.gms) is NOT on the Magisk DenyList if Enforce DenyList is enabled since this interferes with the module; the module does prevent this using scripts but it only happens once during each reboot.

Note: To test <A13 PI verdicts on an A13+ ROM the spoofVendingSdk option in the custom.pif.json Advanced Settings must be temporarily enabled. See the spoofing Advanced Settings section below.

Failing BASIC integrity

If you are failing MEETS_BASIC_INTEGRITY something is wrong in your setup. Recommended steps in order to find the problem:

• Disable all modules except this one
• Try a different (ideally known working) custom.pif.json

Note: Some modules which modify system (e.g. Xposed) can trigger DroidGuard detections, as can any which hook Google Play Services (GMS) processes (e.g. custom fonts).

Failing DEVICE integrity (on KernelSU/KernelSU Next/APatch)

• Disable Zygisk Next
• Reboot
• Enable Zygisk Next
• Reboot again

Failing DEVICE integrity (on custom kernel/ROM)

• Check the kernel release string with command adb shell uname -r or uname -r
• If it's on the Known Banned Kernel List then inform your kernel developer/ROM maintainer to remove their branding for their next build
• You may also try a different custom kernel, or go back to the default kernel for your ROM, if available/possible

Failing DEVICE integrity (on custom ROM)

• Check the ROM signing keys with command adb shell unzip -l /system/etc/security/otacerts.zip or unzip -l /system/etc/security/otacerts.zip
• If the output shows the ROM is signed with the AOSP testkey then inform your ROM maintainer to start signing their builds with a private key for their next build and ideally also provide a ROM signature migration build to allow users to update to it without requiring a data wipe
• Pixel Beta fingerprints and some private fingerprints appear to be exempt from this testkey ROM ban
• There is an experimental advanced feature to attempt to work around this by spoofing the ROM signature in Package Manager, see the spoofing Advanced Settings section below
• You may also try a different custom ROM, or go back to the stock ROM for your device, if available/possible

Failing Play Protect/Store Certification

• Reflash the module in your root manager app
• Clear Google Play Store (com.android.vending) and, if present, Google Play Protect Service (com.google.android.odad) cache and data
• Reboot

Failing Google Messages RCS setup or failing to send messages

• Reflash the module in your root manager app
• Try a different (ideally known working) custom.pif.json
• Clear Google Messages (com.google.android.apps.messaging) cache and data
• Reboot

Note: RCS is most easily checked using Gemini in Messages and usually clearing Messages app data is not required.

Failing Google Wallet Tap To Pay Setup Security Requirements

• Reflash the module in your root manager app
• Ensure you are passing <A13 PI DEVICE or higher integrity
• Clear Google Wallet (com.google.android.apps.walletnfcrel) and/or Google Pay (com.google.android.apps.nbu.paisa.user) cache, if you have them installed
• Clear Google Play Services (com.google.android.gms) cache and data, or, optionally skip clearing data and wait some time (24-72h) for it to resolve on its own
• Reboot

Note: Clearing Google Play Services app data will then require you to reset any WearOS devices paired to your device.

Read module logs

You can read module logs using one of these commands directly after boot:

adb shell "logcat | grep 'PIF/'" or su -c "logcat | grep 'PIF/'"

Adjust the Advanced Settings "verboseLogs" entry to a value of "0", "1", "2", "3" or "100" in your custom.pif.json to enable higher logging levels; "100" will dump all Build fields and all system properties that DroidGuard is checking.

Can this module pass MEETS_STRONG_INTEGRITY?

No...

About spoofing Advanced Settings

The advanced spoofing options add granular control over what exactly gets spoofed to Play Integrity (PI), allowing one to disable the parts that may conflict with other kinds of spoofing modules, and provides options to force a device to use <A13 PI verdicts or work around the testkey ROM ban for those needing those features. See more in the Details area below.

Details

• The Advanced Settings entries are present by default from autopif2 or migrate (during installation), but may be added to any fingerprint by running migrate.sh with the -f -a or --force --advanced arguments in a file explorer app or with sh migrate.sh --force --advanced in a root shell. They may also be configured directly for Tricky Store to achieve <A13 PI STRONG or A13+ PI DEVICE/STRONG integrity (see below) by running autopif2.sh with the -s -p or --strong --preview arguments in a file explorer app or with sh autopif2.sh --strong --preview in a root shell. Other than for the "verboseLogs" entry (see above), they are all 0 (disabled) or 1 (enabled).

• The "spoofBuild" entry (default 1) controls spoofing the Build Fields from the fingerprint; the "spoofProps" entry (default 1) controls spoofing the System Properties from the fingerprint; the "spoofProvider" entry (default 1) controls spoofing the Keystore Provider; the "spoofSignature" entry (default 0) controls spoofing the ROM Signature, and the "spoofVendingSdk" entry (default 0) controls spoofing ROM SDK_INT/sdkVersion 32 to the Play Store (com.android.vending) to force Play Integrity to use the <A13 PI verdicts.

• Leaving spoofVendingSdk enabled is NOT recommended, it will break the behavior of the Play Store to some extent (back gesture/navbar button for all, account sign-in and downloads for higher original ROM SDK_INT) and could have other unintended effects like incorrect app variants being served, crashes, etc. Play Store must be fully set up before (and data not cleared during) enabling spoofVendingSdk or it and PI checks will only crash/hang. One possible use case is with the spoofVendingSdk QSTile Tasker App to quickly toggle it on only as needed, then toggle it off again afterward.

• For spoofing locked bootloader and attempting to pass <A13 PI STRONG integrity, or A13+ PI DEVICE or STRONG integrity I only recommend using the latest official Tricky Store build.

• Note: Using Tricky Store to achieve <A13 PI STRONG integrtiy, or A13+ PI DEVICE or STRONG integrity (with an unrevoked hardware keybox.xml) requires the Advanced Settings "spoofProvider" disabled and the "*.security_patch" entry commented out (unless spoofing a matching OS Patch Level with system= or all= in Tricky Store's security_patch.txt; autopif2 will do this automatically if security_patch.txt exists in the Tricky Store directory), but to achieve <A13 PI DEVICE integrity (with Tricky Store default AOSP software keybox.xml) requires at least "spoofProps" enabled, and some fingerprints may also require "spoofProvider" enabled, "*.security_patch" entry uncommented and/or "*api_level" entry set >25 (usually 26-32). More known working private fingerprints can achieve <A13 PI DEVICE/STRONG integrity on more devices using these Advanced Settings in conjunction with Tricky Store than was possible with Tricky Store alone since they require fingerprint props spoofing.

About Scripts-only mode

An advanced feature intended for older Android <10 ROMs, mostly stock ROMs or those with stock-like values, (and some other rare special cases), since they generally only need a few prop changes to pass <A13 PI DEVICE integrity. Due to this the majority of the previous information does not apply to or contradicts that of Scripts-only mode, so to avoid confusion it's contained in the Details area below.

Details

• Manually opt-in by creating a file named scripts-only-mode in the module directory, either from a root prompt with mkdir -p /data/adb/modules/playintegrityfix; touch /data/adb/modules/playintegrityfix/scripts-only-mode or from a file explorer app, and then re/flashing the module. Scripts-only mode will remain enabled until this file is removed and the module is reflashed again.

• During install all unused default mode files (including custom.pif.json) are removed from the module directory, effectively disabling the Zygisk components of PIF: attestation fallback and device spoofing. You'll see "Scripts-only mode" indicated in the module description in your root manager app.

• For best results, you should still most likely enable Magisk's Enforce DenyList option if NOT also using Shamiko or Zygisk Assistant or NoHello. The module will automatically add the Google Play Services DroidGuard process (com.google.android.gms.unstable) to the Magisk DenyList, if missing, since for Scripts-only mode it's necessary on some configurations (generally Android 9).

About skipping property deletion

An advanced feature (unrelated to Play Integrity) intended for those who also need to use apps which detect prop tampering. To avoid triggering these detections by skipping any resetprop --delete commands in the module scripts, manually opt-in by creating a file named skipdelprop in the module directory after installation, either from a root prompt with touch /data/adb/modules/playintegrityfix/skipdelprop or from a file explorer app, then reboot.

About Play Integrity (SafetyNet has been shut down)

Play Integrity API - FAQ/information about PI (Play Integrity) replacing SN (SafetyNet)

Play Integrity Improved Verdicts - Information about the more secure verdicts for Android 13+ ROMs (also see the spoofing Advanced Settings section above)

Credits

Forked from chiteroman's Play Integrity Fix (PIF) (no longer online).

Original concept and general mechanism of PIF from kdrag0n's ProtonAOSP and Universal SafetyNet Fix (USNF) projects.

Module boot scripts adapted from those of Displax's forked Universal SafetyNet Fix (USNF MOD); please see the module files commit history for proper attribution.