How to Protect Your BYD or Denza ADB Access — BYD ADB Rescue Guide

So you've enabled ADB on your BYD or Denza — congrats. You can now install third-party apps like DiPlus, Electro, and OverDrive. But there's one problem: ADB access can disappear.

An OTA software update, or even a random system glitch, can disable ADB without warning. When that happens, you'd normally need to go through the entire enablement process again — finding a technician, generating a new QR code, waiting for authentication.

Unless you have BYD ADB Rescue installed.

What is BYD ADB Rescue?

BYD ADB Rescue is a free, open-source Android app that checks and attempts to restore ADB settings after every infotainment restart. It was created by DottoreTozzi on GitHub and is completely free to use.

Here's how it works:

• Install the app while ADB is still active
• Grant the required permissions
• Open the app once and press one button
• That's it — the app runs in the background and checks ADB status after every reboot

If ADB settings get changed after a restart, the app attempts to restore them. It cannot guarantee recovery in every firmware or OTA situation, but it significantly reduces the chance of losing access.

What Does It Actually Protect?

BYD infotainment systems use two separate ADB modes:

1. Standard Android ADB — controlled by Settings.Global.adb_enabled=1
2. BYD Wireless ADB — controlled by persist.sys.adb.wiress.enable=true and sys.connect.adb.wiress=1 (the misspelling "wiress" is BYD's own — not a typo)

BYD ADB Rescue monitors and restores both modes. It reads back every value and reports the real result instead of assuming success.

How to Install It

Requirements:

• ADB must already be enabled on your vehicle
• A computer with ADB installed (Windows, Mac, or Linux)
• A WiFi ADB connection to the infotainment

Step 1: Check your ADB connection

Connect to your infotainment via WiFi, then run:

adb devices

You should see your device listed followed by device. If the list is blank or says unauthorized, stop and fix your ADB connection first before continuing.

✅ You should see your device listed

Step 2: Check your Android version

adb shell getprop ro.build.version.release

This tells you which APK to download:

• Android 10 → download the Android 10 APK
• Android 14 → download the Android 14 APK

Step 3: Download the correct APK

Download from GitHub Releases. Choose the APK that matches your Android version from Step 2.

Step 4: Install the APK

adb install BYD-ADB-Rescue-v1.4-android14.apk

Replace the filename with the actual APK you downloaded. You should see Success when installation completes.

✅ Installation should say Success

Step 5: Find your active Android user

adb shell am get-current-user

This returns a number — usually 0 or 10. Note this number down — you'll need it in the next step.

✅ Note your active Android user number

Step 6: Grant the required permission

Grant WRITE_SECURE_SETTINGS to user 0 (the base user):

adb shell pm grant --user 0 de.tozzi.bydadbkeeperdiag android.permission.WRITE_SECURE_SETTINGS

Then grant it to your active user (replace 10 with the number from Step 5):

adb shell pm grant --user 10 de.tozzi.bydadbkeeperdiag android.permission.WRITE_SECURE_SETTINGS

Step 7: Open ADB Rescue and enable

Open the app on the infotainment screen. Press the big button: "Enable both ADB modes".

Step 8: Verify it's working

Run these commands to check:

adb shell settings get global adb_enabled
adb shell getprop persist.sys.adb.wiress.enable
adb shell getprop sys.connect.adb.wiress

Expected values:

1
true
1

✅ Final result should show 1 / true / 1

Done — the app will now check and attempt to restore ADB settings after every reboot.

What Happens After a Factory Reset?

A factory reset will wipe the app and disable ADB — so you'll need to contact us for re-enablement. But for OTA updates and system glitches, ADB Rescue has you covered.

That's where we come in. If you're a BAOLAB customer with our 6-month re-activation guarantee, we'll re-enable ADB for you for free — and walk you through reinstalling ADB Rescue so it doesn't happen again.

Why You Should Install This Right Now

If you've already enabled ADB on your BYD or Denza, install ADB Rescue today. It takes 2 minutes and could save you hours of hassle later.

Think of it like insurance — you hope you'll never need it, but you'll be glad it's there when you do.

Download

BYD ADB Rescue is free and open-source. Download it from GitHub:

github.com/DottoreTozzi/BYD-ADB-Unlock

BYD ADB Rescue is developed by DottoreTozzi and is not affiliated with BAOLAB, BYD, or Denza. Use at your own discretion.