# Unable to install custom app, Herelink read-only **URL:** \ **Category:** HereLink\ **Created:** [12 May 2022 15:05 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890 "2022-05-12T15:05:09Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [12 May 2022 15:05 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/1 "2022-05-12T15:05:09Z")
I am trying to install a custom version of QGC. When I try to install using "adb install \ it fails. And the Herelink goes offline. I also tried "adb push \ \ and it fails saying the device is read-only. ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [12 May 2022 23:23 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/2 "2022-05-12T23:23:19Z")
use adb install, not push ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [13 May 2022 03:04 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/3 "2022-05-13T03:04:18Z")
I have tried “adb install \”, many times. Also tried “adb install --no-streaming \” and that also did not work. I only tried push to see if I could get the apk file to the device. And that is when it gave me the read only error. ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [13 May 2022 17:24 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/4 "2022-05-13T17:24:27Z")
Just another data point. I was able to successfully install the same apk onto an old Samsung Galaxy 6 device. This was done using the same command that does not work with my Herelink: adb install \ ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [14 May 2022 10:28 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/5 "2022-05-14T10:28:48Z")
you need to at least provide the exact error you are getting. ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [14 May 2022 15:35 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/6 "2022-05-14T15:35:16Z")
Below is captures from attempting the install with streaming and no streaming. And log captures afterwards. Note the exceptions in each case. I have more complete logs but this site will not let me upload them. Device SW Version: LATEST: BRU01211104 C:\apk\>adb devices List of devices attached d7934778 device C:\apk\>adb install android-build-release-signed.apk Performing Streamed Install adb: failed to install android-build-release-signed.apk: C:\apk\>adb devices List of devices attached d7934778 offline \*\* Unplugged USB cable and plugged back in C:\apk\>adb devices List of devices attached d7934778 device C:\apk\>adb logcat 05-14 08:09:27.423 262 262 I usbethx : POWER\_SUPPLY\_CURRENT\_MAX=500 05-14 08:09:27.423 262 262 I usbethx : POWER\_SUPPLY\_TYPE=USB 05-14 08:09:27.423 262 262 I usbethx : POWER\_SUPPLY\_CHARGE\_TYPE=N/A 05-14 08:09:27.423 262 262 I usbethx : SEQNUM=2215 05-14 08:09:27.431 746 825 V UsbDeviceManager: USB UEVENT: {USB\_STATE=DISCONNECTED, SUBSYSTEM=android\_usb, SEQNUM=2216, ACTION=change, DEVPATH=/devices/virtual/android\_usb/android0} 05-14 08:09:27.432 1 1 I init : type=1400 audit(0.0:334): avc: denied { write } for name=“0.modem” dev=“sysfs” ino=6182 scontext=u:r:init:s0 tcontext=u:object\_r:sysfs:s0 tclass=dir permissive=1 05-14 08:09:27.432 1 1 I init : type=1400 audit(0.0:335): avc: denied { add\_name } for name=“charger\_status” scontext=u:r:init:s0 tcontext=u:object\_r:sysfs:s0 tclass=dir permissive=1 05-14 08:09:27.432 1 1 I init : type=1400 audit(0.0:336): avc: denied { create } for name=“charger\_status” scontext=u:r:init:s0 tcontext=u:object\_r:sysfs:s0 tclass=file permissive=1 05-14 08:09:27.438 746 1978 W FastPrintWriter: Write failure 05-14 08:09:27.438 746 1978 W FastPrintWriter: java.io.IOException: write failed: EIO (I/O error) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.IoBridge.write(IoBridge.java:501) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at java.io.FileOutputStream.write(FileOutputStream.java:316) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.internal.util.FastPrintWriter.flushBytesLocked(FastPrintWriter.java:336) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.internal.util.FastPrintWriter.flushLocked(FastPrintWriter.java:359) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.internal.util.FastPrintWriter.flush(FastPrintWriter.java:394) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.ShellCommand.exec(ShellCommand.java:113) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.server.pm.PackageManagerService.onShellCommand(PackageManagerService.java:18409) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.Binder.shellCommand(Binder.java:468) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.Binder.onTransact(Binder.java:367) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:2387) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.server.pm.PackageManagerService.onTransact(PackageManagerService.java:3056) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.Binder.execTransact(Binder.java:565) 05-14 08:09:27.438 746 1978 W FastPrintWriter: Caused by: android.system.ErrnoException: write failed: EIO (I/O error) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.Posix.writeBytes(Native Method) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.Posix.write(Posix.java:273) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.BlockGuardOs.write(BlockGuardOs.java:319) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.IoBridge.write(IoBridge.java:496) 05-14 08:09:27.438 746 1978 W FastPrintWriter: … 11 more 05-14 08:09:27.439 262 262 I usbethx : change@/devices/virtual/android\_usb/android0 05-14 08:09:27.439 262 262 I usbethx : ACTION=change 05-14 08:09:27.439 262 262 I usbethx : DEVPATH=/devices/virtual/android\_usb/android0 05-14 08:09:27.439 262 262 I usbethx : SUBSYSTEM=android\_usb 05-14 08:09:27.439 262 262 I usbethx : USB\_STATE=DISCONNECTED 05-14 08:09:27.440 262 262 I usbethx : SEQNUM=2216 05-14 08:09:27.440 262 262 I usbethx : change@/devices/platform/soc/fa300000.usb/udc/fa300000.usb 05-14 08:09:27.440 262 262 I usbethx : ACTION=change 05-14 08:09:27.442 262 262 I usbethx : DEVPATH=/devices/platform/soc/fa300000.usb/udc/fa300000.usb 05-14 08:09:27.442 262 262 I usbethx : SUBSYSTEM=udc C:\apk\>adb devices List of devices attached d7934778 device C:\apk\>adb install --no-streaming android-build-release-signed.apk Performing Push Install adb: error: failed to read copy responseease-signed.apk android-build-release-signed.apk: 1 file pushed, 0 skipped. 4.9 MB/s (26079780 bytes in 5.108s) adb: error: failed to read copy response C:\apk\>adb devices List of devices attached d7934778 offline \*\* Unplugged USB cable and plugged back in C:\apk\>adb devices List of devices attached d7934778 device C:\apk\>adb logcat 05-14 08:09:27.423 262 262 I usbethx : SEQNUM=2215 05-14 08:09:27.431 746 825 V UsbDeviceManager: USB UEVENT: {USB\_STATE=DISCONNECTED, SUBSYSTEM=android\_usb, SEQNUM=2216, ACTION=change, DEVPATH=/devices/virtual/android\_usb/android0} 05-14 08:09:27.432 1 1 I init : type=1400 audit(0.0:334): avc: denied { write } for name=“0.modem” dev=“sysfs” ino=6182 scontext=u:r:init:s0 tcontext=u:object\_r:sysfs:s0 tclass=dir permissive=1 05-14 08:09:27.432 1 1 I init : type=1400 audit(0.0:335): avc: denied { add\_name } for name=“charger\_status” scontext=u:r:init:s0 tcontext=u:object\_r:sysfs:s0 tclass=dir permissive=1 05-14 08:09:27.432 1 1 I init : type=1400 audit(0.0:336): avc: denied { create } for name=“charger\_status” scontext=u:r:init:s0 tcontext=u:object\_r:sysfs:s0 tclass=file permissive=1 05-14 08:09:27.438 746 1978 W FastPrintWriter: Write failure 05-14 08:09:27.438 746 1978 W FastPrintWriter: java.io.IOException: write failed: EIO (I/O error) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.IoBridge.write(IoBridge.java:501) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at java.io.FileOutputStream.write(FileOutputStream.java:316) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.internal.util.FastPrintWriter.flushBytesLocked(FastPrintWriter.java:336) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.internal.util.FastPrintWriter.flushLocked(FastPrintWriter.java:359) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.internal.util.FastPrintWriter.flush(FastPrintWriter.java:394) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.ShellCommand.exec(ShellCommand.java:113) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.server.pm.PackageManagerService.onShellCommand(PackageManagerService.java:18409) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.Binder.shellCommand(Binder.java:468) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.Binder.onTransact(Binder.java:367) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:2387) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at com.android.server.pm.PackageManagerService.onTransact(PackageManagerService.java:3056) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at android.os.Binder.execTransact(Binder.java:565) 05-14 08:09:27.438 746 1978 W FastPrintWriter: Caused by: android.system.ErrnoException: write failed: EIO (I/O error) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.Posix.writeBytes(Native Method) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.Posix.write(Posix.java:273) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.BlockGuardOs.write(BlockGuardOs.java:319) 05-14 08:09:27.438 746 1978 W FastPrintWriter: at libcore.io.IoBridge.write(IoBridge.java:496) 05-14 08:09:27.438 746 1978 W FastPrintWriter: … 11 more 05-14 08:09:27.439 262 262 I usbethx : change@/devices/virtual/android\_usb/android0 05-14 08:09:27.439 262 262 I usbethx : ACTION=change 05-14 08:09:27.439 262 262 I usbethx : DEVPATH=/devices/virtual/android\_usb/android0 05-14 08:09:27.439 262 262 I usbethx : SUBSYSTEM=android\_usb 05-14 08:09:27.439 262 262 I usbethx : USB\_STATE=DISCONNECTED 05-14 08:09:27.440 262 262 I usbethx : SEQNUM=2216 05-14 08:09:27.440 262 262 I usbethx : change@/devices/platform/soc/fa300000.usb/udc/fa300000.usb ---
**Author:** ![Jesus](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/j/ac91a4/32.png) [@Jesus](https://discuss.cubepilot.org/u/Jesus)\ **Post date:** [15 May 2022 07:24 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/7 "2022-05-15T07:24:56Z")
Android versions may not match so you can try to update different versions or here link? ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [16 May 2022 03:55 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/8 "2022-05-16T03:55:40Z")
as @Jesus has mentioned, what android version are you targeting? needs to be 7.1 or bellow. you can use a newer sdk, just need to target the lower value ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [16 May 2022 16:38 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/9 "2022-05-16T16:38:36Z")
Thanks for the suggestions. But that does not seem to be the issue. I am setting the Target to be “API 25: Android 7.1”. The Herelink device Android version is 7.1.2. Here is some info from the apk file. Android manifest: N: android=http://schemas.android.com/apk/res/android E: manifest (line=2) A: android:versionCode(0x0101021b)=(type 0x10)0x494d3 A: android:versionName(0x0101021c)=“3.0.0-243-gd759437” (Raw: “3.0.0-243-gd759437”) A: android:installLocation(0x010102b7)=(type 0x10)0x0 A: package=“gov.nasa.arc.aol.qgroundcontrol” (Raw: “gov.nasa.arc.aol.qgroundcontrol”) A: platformBuildVersionCode=(type 0x10)0x19 (Raw: “25”) A: platformBuildVersionName=“7.1.1” (Raw: “7.1.1”) E: uses-sdk (line=8) A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10 A: android:targetSdkVersion(0x01010270)=(type 0x10)0x19 ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [16 May 2022 23:58 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/10 "2022-05-16T23:58:30Z")
ok, so i dont see anything that should be blocking it initialy. we dont stop you installing custom apps at all, so there must be something else going on here. can you reboot the unit do a “adb install android-build-release-signed.apk” then after it fails “adb bugreport” and upload the file it generates ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [17 May 2022 00:06 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/11 "2022-05-17T00:06:22Z")
[bugreport-N2G47J-2022-05-16-17-02-56.zip](https://discuss.cubepilot.org/uploads/short-url/kKunV2onBQfOJ7WSFeWhwo9yeuD.zip) (823.5 KB) I have followed the steps you provided and uploaded the file. To note is that once the install fails the device appears to go offline. So I had to unplug the device from USB and then plug back in to generated the bugreport. ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [17 May 2022 10:12 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/12 "2022-05-17T10:12:05Z")
ok so couple of questions do you have a microsd card intalled? and is there enough free space on both the internal storage? apk size \* 2 and how big is the apk? ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [17 May 2022 10:44 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/13 "2022-05-17T10:44:51Z")
does that mean it rebooted? or just usb stopped responding? i can see the install attempt Session 1815042004: userId=0 installerPackageName=null installerUid=2000 createdMillis=1652745733621 stageDir=/data/app/vmdl1815042004.tmp stageCid=null mode=1 installFlags=0x70 installLocation=1 sizeBytes=26079780 appPackageName=null appIcon=false appLabel=null originatingUri=null originatingUid=-1 referrerUri=null abiOverride=null volumeUuid=null grantedRuntimePermissions=null mClientProgress=0.0 mProgress=0.0 mSealed=true mPermissionsAccepted=true mRelinquished=false mDestroyed=true mBridges=1 mFinalStatus=-115 mFinalMessage=Session was abandoned also have you tried installing any other apk? just want to narrow down if its something to do with the system as a whole, or just this one apk in question. ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [18 May 2022 15:41 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/14 "2022-05-18T15:41:28Z")
To answer your questions: - No microsd card installed - I believe there is enough space. From device Settings, Storage shows 876 MB of 4.85 GB used. - My APK that I am trying to install is 25 MB. - Following the install attempt ADB shows the device as “offline”. I am not rebooting the device. Simply unplug/plug the USB cable. - I tried another APK for one of the Android Sample apps. And it fails the same way. Its size is 75 KB. ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [18 May 2022 16:45 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/15 "2022-05-18T16:45:36Z")
[app-release-unsigned.zip](https://discuss.cubepilot.org/uploads/short-url/p8SO20JylJwbJPJZtdtcV2zDurc.zip) (69.0 KB) This is the sample app that also fails to install. ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [24 May 2022 19:32 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/16 "2022-05-24T19:32:00Z")
> [@Bill\_McCarty](#): > > This is the sample app that also fails to install. This is the same sample app that also fails to install. But this one is signed. [app-release.zip](https://discuss.cubepilot.org/uploads/short-url/9ZvXnr9TcXcbMav4DeTZC3o5Ao4.zip) (70.2 KB) ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [25 May 2022 01:43 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/17 "2022-05-25T01:43:18Z")
my attempt at your app C:\Users\mich1\Downloads\>adb install app-release.apk - daemon not running; starting now at tcp:5037 - daemon started successfully Performing Streamed Install Success and i see and can launch app shortcut example ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [25 May 2022 01:45 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/18 "2022-05-25T01:45:04Z")
an unsigned app i think will always fail eg C:\Users\mich1\Downloads\>adb install app-release-unsigned.apk Performing Streamed Install adb: failed to install app-release-unsigned.apk: Failure [INSTALL\_PARSE\_FAILED\_NO\_CERTIFICATES: Failed to collect certificates from /data/app/vmdl1698006144.tmp/base.apk: Attempt to get length of null array] ---
**Author:** ![Michael\_Oborne](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/michael_oborne/32/13_2.png) [@Michael\_Oborne](https://discuss.cubepilot.org/u/Michael_Oborne)\ **Post date:** [25 May 2022 01:49 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/19 "2022-05-25T01:49:46Z")
so it looks like its a system wide state. so my next questions are is a new and valid windows adb driver installed? is the version of adb you using up to date? whats is the oem build number of the herelink fw you are on? (settings \> about phone) for me ![image](https://discuss.cubepilot.org/uploads/default/original/2X/f/fceaad0f56146ec804bb351388ed4af255aee7a5.png) adb version Android Debug Bridge version 1.0.41 Version 31.0.3-7562133 Installed as C:\Program Files (x86)\Android\android-sdk\platform-tools\adb.exe ---
**Author:** ![Bill\_McCarty](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/bill_mccarty/32/5469_2.png) [@Bill\_McCarty](https://discuss.cubepilot.org/u/Bill_McCarty)\ **Post date:** [25 May 2022 16:47 UTC](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890/20 "2022-05-25T16:47:34Z")
is a new and valid windows adb driver installed? **Yes** , the driver was installed using the SDK Manager. It currently shows the status is “installed” and the version is “13”. See screenshot. ![sdk-tools](https://discuss.cubepilot.org/uploads/default/original/2X/f/f60adada8fbcf1595195c8ea034d0b4ecc8d50ab.jpeg) I also tried updating following the steps at [https://www.drivereasy.com/knowledge/install-the-adb-driver-on-your-windows-pc-easily/#d](https://www.drivereasy.com/knowledge/install-the-adb-driver-on-your-windows-pc-easily/#d) and it said the best driver was already installed. is the version of adb you using up to date? **Yes** , > adb version > Android Debug Bridge version 1.0.41 > Version 33.0.1-8253317 > Installed as C:\Users\wmmccart\AppData\Local\Android\Sdk\platform-tools\adb.exe whats is the oem build number of the herelink fw you are on? (settings \> about phone) **OEM Build Number: BRU01211104** [Next page](https://discuss.cubepilot.org/t/unable-to-install-custom-app-herelink-read-only/8890.md?page=2)