I ACCIDENTALLY SET WRONG PERMISSIONS FOR /system/app/ directory and now I get ERRORS

Basically, I was installing an app as a system app with ADB. When I suddenly accidentally.
DID: adb shell chmod 644 /system/app/
And now I get the error: Unfortunately the process Com.Android.Phone has stopped.
And it says no SIM CARD! I broke the permissions and I wanna fix this.
The Message pops up every second!

What are the original permissions for /system/app/ so I can set it back and be relieved!?

I cant install any app into system/app

hi,
I cant install any app into system/app.
After a reboot it will be deleted...
why it does not work , what should I do

HTC One M8 - Android Revolution HD 53.1

Bricked Note5. In TWRP Recovery 3.0. Need to delete folder in /system/app. Error:1

[SOLVED] - Apparently, I lost the ability to *read* also. When I went into TWRP, I must have clicked the "keep the system read-only" button. That would prevent me from deleting files/folders. I hereby select one card from the Smacktard pile.


Evening all,

Sprint Note 5, Rooted.

Tried to manually make an application a "System App". This is what happens when you give a monkey the *tools* but not the *brains*:confused:. I'm plenty technical, but I've not done this before.

I installed an app, then went into the data\apps directory and copied the entire application's folder into \system\app.
When I rebooted, the phone gets stuck on the Sprint LTE screen.
When I boot into TWRP, and into Advanced / File Manager, then go into the offending directory, I get the following:

File Operation Complete
Failed
rm -rf "/system/app/com.incorporateapps.fakegps.fre-1" processes ended with ERROR: 1

I get similar messages when I chmod, delete, move, or rename.

Any assistance you could provide would be MUCH appreciated. I'm bricked and cannot work until I get my phone back.

Thanks!
Pete