Cannot remount system as rw - Android General

I have a Sony Xperia M2 D2303 mobile and I have just rooted using kingroot. I have checked that device is rooted using root checker. My problem is that I cannot remount system folder as rw.
so I cannot copy any file to /system folder. When I try to install an application as a system app to /system folder it fails. I have tried ES file explorer to set write permission to system folder but without success.
What can I do?

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I get the message that super user access has been granted
I have root explorer and can set toggle R/W button
I can copy files to the flash or usb flash
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Problem solved. Got a different version of root explorer.

[Q] Unable to mount System File

Unable to mount system files from RO to RW in Root explorer Somebody help me i have rooted my device. Super user granted permission to ROOT EXPLORER
siddhu0302 said:
Unable to mount system files from RO to RW in Root explorer Somebody help me i have rooted my device. Super user granted permission to ROOT EXPLORER
Click to expand...
Click to collapse
- Close the app
- Go to Task Manager
- Exit All Apps and click on clear memory
Now try Mounting R/W

[Q] Mount /system folder r/w

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/system remounting as RO after explicit RW mount

I have used the adb shell to mount my system partition as RW (mount -o remount,rw /system) but it appears to revert to RO. I can't tell exactly why.
I wish to move app updates to /system.
I have used CF Auto Root to root the device.
I installed Titanium Backup Pro.
I have set the app mode to AUTO/indirect as recommended for Samsung devices.
I select Integrate updates to system ROM (or similar, I don't have the screen in front of me). As soon as I do this, the /system partition is remounted as read only (cat /proc/mounts | grep system)
TB just seems to hang. The Gmail base.apk has been copied to /system/apps and the com.google.android.gm-1 folder has been removed from /data/app.
If I don't mount /system as RW the same thing happens.
If I manually copy the app data from /data/app to /system/app and set the permissions the app still fails to function.
Does anyone have any ideas why this is happening?
EDIT:
I cannot load apks via adb - I am told I have a RO file system, even though I can clearly see the /system partition is mounted.

ES File Explorer mount rw not possible for /system

Hello
I rooted my device and try to copy folders to /system. I use ES File Explorer. But when I click on Root-Explorer and mount rw, then there is nothing i can click on, no directory i can chose RO or RW for.
Does anyone know why i cant set RW for /system?
My device is rooted with magisk. and it says i have superuser-Permissions for the app
ChrisK2 said:
Hello
I rooted my device and try to copy folders to /system. I use ES File Explorer. But when I click on Root-Explorer and mount rw, then there is nothing i can click on, no directory i can chose RO or RW for.
Does anyone know why i cant set RW for /system?
My device is rooted with magisk. and it says i have superuser-Permissions for the app
Click to expand...
Click to collapse
Here is what i mean, thee should be zthe option to make /system RW

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