[Solved] Lenovo tab 4 (tb-8504x) mount /system as rw = not responding device - Thinkpad Tablet General

I have a problem with rooted tab4 tablet.
When i remount /system to rw, device hangs/freezes (stop responding).
Tested with magisk and SuperSU.
Android 7.1.1
EDIT:
I figured out.
It's necessary to flash through TWRP, a magisk module from dywersant's post.
When module is enabled, it's possible to mount /system as rw, but device will not pass SafetyNet test.
When module is disabled, /system is mounted as ro, any change on this partition will freeze device, but it will pass SafetyNet test.
I use this module only when I Have to.

tgm28 said:
I have a problem with rooted tab4 tablet.
When i remount /system to rw, device hangs/freezes (stop responding).
Tested with magisk and SuperSU.
Android 7.1.1
Click to expand...
Click to collapse
How have got it rooted?

Uqbar said:
How have got it rooted?
Click to expand...
Click to collapse
Just follow instructions in this thread TWRP and ROOT for Tab 4 8/10 (Plus)
Flash magisk, flash magisk module named magisk-remount (from HERE ) - this module is for /system remount (when it is enabled Magisk do not pass SafetyNet test; when disabled it pass)
Probably that's all

tgm28 said:
Just follow instructions in this thread TWRP and ROOT for Tab 4 8/10 (Plus)
Flash magisk, flash magisk module named magisk-remount (from HERE ) - this module is for /system remount (when it is enabled Magisk do not pass SafetyNet test; when disabled it pass)
Probably that's all
Click to expand...
Click to collapse
Thanks. I haven't found any custom ROM (I am looking for a debloated one). Have you?

Uqbar said:
Thanks. I haven't found any custom ROM (I am looking for a debloated one). Have you?
Click to expand...
Click to collapse
No. I use Stock rom with magisk and Twrp.

How bloated is it?

Uqbar said:
How bloated is it?
Click to expand...
Click to collapse
Not heavily like samsung's devices. It's almost clean.

Did you ever find any other ways other than magisk to mount /system as rw without a system freeze?

Does not work.
This method doesn't work, the system is freeze anyway.

arminass said:
This method doesn't work, the system is freeze anyway.
Click to expand...
Click to collapse
What's news? Is there any other way?
I use Magisk 20.3 or 20.4 on my two tablets.
One tablet is under stock Android 8.1.0
and another is under LineAgeOS16 - Android 9 Pie.
Both, give su for applications and ADB, but don't have system root for system folder.

@krchat - did you try installing the zip in this post to see if you could write /system?

drizzle123 said:
@krchat - did you try installing the zip in this post to see if you could write /system?
Click to expand...
Click to collapse
yes, no luck.

krchat said:
yes, no luck.
Click to expand...
Click to collapse
It's a complete pain. I heard its problems with Magisk? Anyhow I installed magisk 19.3 - booted then installed the remount zip, rebooted again - checked the system was RW, then installed magisk 20.4. All seems well for me

arminass said:
Does not work.
This method doesn't work, the system is freeze anyway.
Click to expand...
Click to collapse
Hello, have you found a way to write to the system partition? My los17.1 write system partition will freeze. I'm going crazy!

asphalt73 said:
Hello, have you found a way to write to the system partition? My los17.1 write system partition will freeze. I'm going crazy!
Click to expand...
Click to collapse
Nope.

Related

[FIX] [ZIP] Fix unmountable System!!

FIX UNMOUNTABLE SYSTEM AFTER ROOTING
Let's keep this short and simple.
This allows you to mount system even if you root.
Flash this and thank me. :\
Jokes aside. Just hit the download button.
Technical details:
This disables RIC service and the script is by NUT. RIC prevents R/W when system is booted.
Thx for your work!
lee480 said:
FIX UNMOUNTABLE SYSTEM AFTER ROOTING
Let's keep this short and simple.
This allows you to mount system even if you root.
Flash this and thank me. :\
Jokes aside. Just hit the download button.
Technical details:
This disables RIC service and the script is by NUT. RIC prevents R/W when system is booted.
Click to expand...
Click to collapse
Sorry but when do you flash this?
Yapperzitata said:
Sorry but when do you flash this?
Click to expand...
Click to collapse
Sent from my D6503 using XDA Free mobile app
If your ROM cannot mount system.
lee480 said:
Sent from my D6503 using XDA Free mobile app
If your ROM cannot mount system.
Click to expand...
Click to collapse
Still can't mount... no errors during flashing
Yapperzitata said:
Still can't mount... no errors during flashing
Click to expand...
Click to collapse
Try this:
Flash this:
http://nut.xperia-files.com/files/remountrebootfix.zip
After flash my file.
EDIT:
I found the issue, and zip file didn't set the correct permissions for the script. I'll fix it asap.
If you want it now, go to recovery and press 'fix permissions '.
Sent from my D6503 using XDA Free mobile app
Thanks a lot. After 2 days searching i found this. Works like a charm:highfive:
Had an issue with /system, and this has fixed it. NC works, I can still use Xposed, AdBlock, and change my DPI. THANK YOU!
Don't suppose there's any way to fix this without a custom recovery is there?
I've rooted but can't mount/write to my System folder after doing a 4.4.4 OTA update, but I don't have a custom recovery installed. I just rooted using the toolkit and left it at that.
Doesn't work
Lost root completely after flashing the zip files
sjamajee said:
Doesn't work
Lost root completely after flashing the zip files
Click to expand...
Click to collapse
For me it didn't fix the system mounting issues (won't mount R/W in either Root Explorer or Xposed) but I still have root.
Fred
ffarber said:
For me it didn't fix the system mounting issues (won't mount R/W in either Root Explorer or Xposed) but I still have root.
Fred
Click to expand...
Click to collapse
Same as that. had to go back to Doom's CWM Stock Kernal to get system RW
defsix said:
Same as that. had to go back to Doom's CWM Stock Kernal to get system RW
Click to expand...
Click to collapse
Will that kernel work with the stock 4.4.4 software?
Fred
All of you who found that this ain't working, it is because you need to have correct busybox installed. After you have that it works as mentioned.
kulvertti said:
All of you who found that this ain't working, it is because you need to have correct busybox installed. After you have that it works as mentioned.
Click to expand...
Click to collapse
I have 1.20.2 version of Busybox installed. Which version are you suggesting?
defsix said:
I have 1.20.2 version of Busybox installed. Which version are you suggesting?
Click to expand...
Click to collapse
This is part of @Nutˋs XZDualrecovery and designed to work with busybox that is installed with that. With other busybox it may work or may not.
--

Magiks on Moto Z play

I managed to have magisk and magiskhide working sucessfully, with some manual tricks and workarounds
There is a bug in f2fs that prevents /data/magisk.img to me mounted writable, so the tweek is just moving that file to the /cache partition, which is ext4 and creating a symlink to the original file.
So the steps for a working magisk is.
- Unlock your bootloader
- Install Twrp
- Flash magisk without mounting data partition and boot once.
- Reboot to recovery and open terminal (advanced)
- move magisk.img to /cache partition, changing name ( example: mv /data/magisk.img /cache/magisk_2.img)
- Create a symlink between_files ( ln -s /cache/magisk_2.img /data/magisk.img)
Would be nice if anybody can try to reproduce.
Ah, so there is a way after all. I gather it works normally afterwards, with phh superuser, xposed and everything? I'm willing to try and reproduce your steps if so, maybe tweak the installer script so it does this automagically as well.
lpchaim said:
Ah, so there is a way after all. I gather it works normally afterwards, with phh superuser, xposed and everything? I'm willing to try and reproduce your steps if so, maybe tweak the installer script so it does this automagically as well.
Click to expand...
Click to collapse
I did not installed Xposed because I wanted to pass SafetyNet, but I cannot think a reason why it shouldn't work.
jblancoperez said:
I did not installed Xposed because I wanted to pass SafetyNet, but I cannot think a reason why it shouldn't work.
Click to expand...
Click to collapse
Right. I think I'll try this out today and see how things turn out. As for SafetyNet, I though the unlocked bootloader alone was enough reason for it not to work, is this only for some models?
Update: So, @jblancoperez, I've reproduced your steps and Magisk Manager tells me it's installed but root isn't activated and it doesn't let me do anything else as a result.
Things to have a look,
Please confirm in the terminal if /magisk is mounted.
Go back to TWRP terminal and also confirm if the symlink is OK.
Nice to get the output from /cache/magisk.log
It took me a while to have everything right, doing it on TWRP is not the easiest places to move things around.
So, an update. Your method just wouldn't work for me at all, no matter how many times I tried. What worked was following the first part only, as in unmounting data and then flashing Magisk afterwards. I've tried Xposed and Viper4Android; they worked, but both did have to be flashed through twrp as opposed to Magisk Manager, which would throw an error. Not sure if that's on them or on this particular method. I should mention though that SafetyNet wouldn't pass even before xposed and with the hiding settings, not sure why.
You may want to try the kernel where the f2fs bug is fixed, which may be the cause when Magisk hide is not working which would cause Safetynet to fail.
Is there anyone wanting to test brand new Magisk 11.0 if it runs fine on Moto Z Play? With and/or without that f2fs fix?
tag68 said:
Is there anyone wanting to test brand new Magisk 11.0 if it runs fine on Moto Z Play? With and/or without that f2fs fix?
Click to expand...
Click to collapse
I got bootloop when I install magiks 11.0.
Do you have a logfile of that action in /cache or /cache/recovery which we could show in the Magisk thread?
I was able to upgrade the 10.2 installation.
Will try a new clean installation on the weekend with the f2fs fixed kernel.
I think I got why my procedure is not working for other people. Please try to copy the image instead of moving with the flags preserving de selinux attributes.
jblancoperez said:
Please try to copy the image instead of moving with the flags preserving de selinux attributes.
Click to expand...
Click to collapse
Keeping attributes when copying or moving is what my guide regarding timestamp is about. It's not that easy using Android.
tag68 said:
Keeping attributes when copying or moving is what my guide regarding timestamp is about. It's not that easy using Android.
Click to expand...
Click to collapse
I used the same cp commands @topjohnwu used in the magisk script, cp -afc orig dest.
jblancoperez said:
I used the same cp commands @topjohnwu used in the magisk script, cp -afc orig dest.
Click to expand...
Click to collapse
cp -a tries to copy attributes including timestamps. But it only succeeds if you are currently running as root.

[ROOT][Magisk 14][09/11/2017] SUPER Easy systemless root for B580+

Since OTA updates NXT-L09CxxxB580+ for our devices is out and because of the fixes in the kernel, we are now able to root our device using Magisk.
This is a step-by-step guide leading you throughout the process and also stating the pros of using Magisk over using SuperSU.
News:
09/11/2017
- Magisk was updated to v14 which adds more root hiding mechanisms and also more devices compatibility.
07/18/2017
- Magisk was updated to version 13.3 and will once again pass SafetyNet without any issues
- To update, just open MagiskManager and press Download and Install (if you are new to Magisk, just follow guide below)
07/14/2017
- Google updated SafetyNet and Magisk devices will not pass it
Pros of using Magisk over SuperSU:
Automatic updates
Does not break OTA updates
Does not break SafetyNet (you will be able to use AndroidPay, play Pokemon Go, install Netflix from Google Play and use apps requiring SafetyNet pass)
Ability to install modules from the repository (much like xposed modules)
Before installation:
Unlock your bootloader
Make sure you have stock boot.img
Make sure you are on B580+ as Magisk cannot be installed on older versions
Installation:
Flash this recovery in fastboot: https://forum.xda-developers.com/mate-8/orig-development/twrp-t3576364
Flash latest Magisk in TWRP recovery: https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445
Boot into system
Check your apps for Magisk Manager
[OPTIONAL] In the magisk manager, you can check if you pass SafetyNet
Troubleshooting:
Magisk Manager was not installed
- Open the Magisk.zip, inside open common folder and install magisk.apk
SafetyNet does not pass
- First try disabling and enabling Magisk Hide in the Magisk Manager
- If above does not help open stock Huawei dialer, dial *#*#2846579#*#*, tap Background settings, tap LOG settings, check all checkboxes, open Magisk Manager and disable and enable Magisk Hide
Supported devices:
All NXT-L29 B580+ devices
All NXT-L09 B580+ devices
All other Mate 8 versions with B580+
Basically any other device as Magisk is not device dependent (works with like 95% of all devices, as long as the device's kernel supports loop mount and few other things)
My Magisk Modules for Mate 8:
[Magisk] Official Huawei Automatic Call Recorder
Hope this will help you guys!
car nikolaj
. I recommend this app to anyone who want for the root acces. :good::good::good::good::good::good::good:
Does this method and the TWRP attached work on B585?
Thanks.
Just installed B581 via OTA and decided to give Magisk a try. I was able to get it installed by following your instructions but I'm not able to pass SafetyNet due to CTS profile mismatch. Any idea?
xxlap1xx said:
Just installed B581 via OTA and decided to give Magisk a try. I was able to get it installed by following your instructions but I'm not able to pass SafetyNet due to CTS profile mismatch. Any idea?
Click to expand...
Click to collapse
Same here. CTS profile mismatch
Fresh B581
Thanks for this, have not tried it yet but if I do, and I for some reason wish to unroot, how does one do that?
necc0 said:
Does this method and the TWRP attached work on B585?
Thanks.
Click to expand...
Click to collapse
Yes
xxlap1xx said:
Just installed B581 via OTA and decided to give Magisk a try. I was able to get it installed by following your instructions but I'm not able to pass SafetyNet due to CTS profile mismatch. Any idea?
Click to expand...
Click to collapse
sZx1 said:
Same here. CTS profile mismatch
Fresh B581
Click to expand...
Click to collapse
Did you installed Xposed? Check Magisk manager settings if you have Magisk hide enabled.
shestolemyusrname said:
Thanks for this, have not tried it yet but if I do, and I for some reason wish to unroot, how does one do that?
Click to expand...
Click to collapse
You just press uninstall button in Magisk manager
Boosik said:
Yes
Did you installed Xposed? Check Magisk manager settings if you have Magisk hide enabled.
You just press uninstall button in Magisk manager
Click to expand...
Click to collapse
When I boot into TWRP for the first time, should I keep Ready Only or Swipe to Allow Modifications?
Can you help me??
Magisk installed -all its ok, but im trying copy one folder and set attributes to system\app folder, but unfortunatelly - cannot write to system\app.... (i must install HwCallRecorder)
I tested Total commander and Root explorer
thx
Boosik said:
Yes
Did you installed Xposed? Check Magisk manager settings if you have Magisk hide enabled.
You just press uninstall button in Magisk manager
Click to expand...
Click to collapse
Nope, freshly installed B581. I read something about SafetyNet was being updated so that's probably why.
Sent from my HUAWEI NXT-L29 using Tapatalk
woji said:
Can you help me??
Magisk installed -all its ok, but im trying copy one folder and set attributes to system\app folder, but unfortunatelly - cannot write to system\app.... (i must install HwCallRecorder)
I tested Total commander and Root explorer
thx
Click to expand...
Click to collapse
I have the same issues as woji, and also can't write hosts file for AdAway.
Seemingly the simple reasons for rooting aren't available in systemless root, or we have errors preventing this?
Hilton.Swart said:
I have the same issues as woji, and also can't write hosts file for AdAway.
Seemingly the simple reasons for rooting aren't available in systemless root, or we have errors preventing this?
Click to expand...
Click to collapse
Same, I had issues with adaway not being to write hosts files using magisk as well. I went back and flashed SuperSU and the problem is gone.
Sent from my HUAWEI NXT-L29 using Tapatalk
Hilton.Swart said:
I have the same issues as woji, and also can't write hosts file for AdAway.
Seemingly the simple reasons for rooting aren't available in systemless root, or we have errors preventing this?
Click to expand...
Click to collapse
xxlap1xx said:
Same, I had issues with adaway not being to write hosts files using magisk as well. I went back and flashed SuperSU and the problem is gone.
Sent from my HUAWEI NXT-L29 using Tapatalk
Click to expand...
Click to collapse
Open Magisk Settings and enable Systemless hosts data.
Systemless root means you can't directly edit /system partition, because editing it voids SafetyNet. Magisk uses Magic Mount to systemlessly replace /system files and folders on-the-fly without actually modifying the original ones. All you need is appropriate modules from magisk manager "Downloads" tab.
woji said:
Can you help me??
Magisk installed -all its ok, but im trying copy one folder and set attributes to system\app folder, but unfortunatelly - cannot write to system\app.... (i must install HwCallRecorder)
I tested Total commander and Root explorer
thx
Click to expand...
Click to collapse
Try installing it as user app and use App Systemizer module in magisk manager to convert it to system app.
xxlap1xx said:
Nope, freshly installed B581. I read something about SafetyNet was being updated so that's probably why.
Sent from my HUAWEI NXT-L29 using Tapatalk
Click to expand...
Click to collapse
Yea you are right, I have it working, but the process is a bit tedious. We better wait for new Magisk version, where it should be fixed.
shestolemyusrname said:
When I boot into TWRP for the first time, should I keep Ready Only or Swipe to Allow Modifications?
Click to expand...
Click to collapse
Keep it Read Only.
Boosik said:
Open Magisk Settings and enable Systemless hosts data.
Click to expand...
Click to collapse
This was my first logical step when hosts would not apply, I've changed the settings numerous times and the host simply will not write.
Tried Magisk for the ability to keep SafetyNet intact, but it still fails any tests. So I think I'll follow xxlap1xx, and try Magisk at another time.
Boosik said:
Yes
Did you installed Xposed? Check Magisk manager settings if you have Magisk hide enabled.
You just press uninstall button in Magisk manager
Click to expand...
Click to collapse
No Xposed installed. Hide was enabled in settings and in hide tab as well.
Reading about SafetyNet looks like unlocked bootloader can be a problem.
V13 beta same results.
Probably have to wait for workaround
Thanks.
Hilton.Swart said:
This was my first logical step when hosts would not apply, I've changed the settings numerous times and the host simply will not write.
Tried Magisk for the ability to keep SafetyNet intact, but it still fails any tests. So I think I'll follow xxlap1xx, and try Magisk at another time.
Click to expand...
Click to collapse
sZx1 said:
No Xposed installed. Hide was enabled in settings and in hide tab as well.
Reading about SafetyNet looks like unlocked bootloader can be a problem.
V13 beta same results.
Probably have to wait for workaround
Thanks.
Click to expand...
Click to collapse
I already know how to workaround it, but the process is a bit unfriendly to normal users (requires terminal emulator). We better wait for new Magisk beta.
Boosik said:
Yes
Did you installed Xposed? Check Magisk manager settings if you have Magisk hide enabled.
You just press uninstall button in Magisk manager
Click to expand...
Click to collapse
Boosik said:
I already know how to workaround it, but the process is a bit unfriendly to normal users (requires terminal emulator). We better wait for new Magisk beta.
Click to expand...
Click to collapse
Can you, please, share. I'm pretty handy with terminal and willing to experiment. Worst - have to return to stock.
Thanks

how to get SafetyNet working on latest 7.1.1 update (Stock Rom) Magisk 14 (version is

Just safety fix module gonna work, every other module gonna bugged.
To install modules you have to wait the f2f2 fixed kernel.
Guys after some testing on magisk i discover that have some modules that work with this method, but carefully because some modules like app systemizer gives a bootloop. So do a backup.
Click to expand...
Click to collapse
For your security make a backup of boot partition first
Click to expand...
Click to collapse
Hi everyone, I decided to do a tutorial, to explain how to get safetynet working while the kernel with f2f2 fixed is not released
{Unlocked bootloader is needed}
{stock rom is needed too}
{TWRP is needed too}
1. you have to reboot in TWRP and install Magisk 14 and reboot (is needed to reboot to create all files) and reboot again into TWRP
2. to work the correct function of magisk you need to do the trick maked by jbblancoperez
3.you have open terminal on TWRP and move the file
mv /data/magisk.img /cache/magisk2.img
Click to expand...
Click to collapse
4.after you have to symlink the files
ln -s /cache/magisk2.img /data/magisk.img
Click to expand...
Click to collapse
5.boot system and check on magisk manager if SafetyNet works if it not works ( install the safety net universal fix) (link above)
6. If you had to install the SafetyNet Fix after works you can unistall the module because its gonna work without it
If anybody have a problem with magisk hide on 14 version just install the 13.3 version and use root explorer to copy the .core folder to sdcard and then install 14 version and put .core folder in appropriate place]
The directory of . core folder is /magisk/.core
Click to expand...
Click to collapse
Links
SafetyNet Fix (for the 14 magisk version you need to install the zip with hotfix, which is in same post of last beta but is in the end of the post) https://forum.xda-developers.com/apps/magisk/xiaomi-safetynet-fix-t3600431
Magisk : https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445
Click to expand...
Click to collapse
Worked like a charm, thank you!
It worked perfectly. Just one thing, you had a syntax error in step 6:
Its '/cache/...' not '/cacve/..."
Anyway, thank you very much. I needed it :good::fingers-crossed:
flapcon said:
It worked perfectly. Just one thing, you had a syntax error in step 6:
Its '/cache/...' not '/cacve/..."
Anyway, thank you very much. I needed it :good::fingers-crossed:
Click to expand...
Click to collapse
I have not seen it ! thanks
Guys after some testing on magisk i discover that have some modules that work with this method, but carefully because some modules like app systemizer gives a bootloop. So do a backup.
Safetynet still fail. Could you explain how to get Safetynet pass? THanks
Magsik dont work with Xposed. Install Magisk 14.3 it will work perfect without doing anything, i am on Security Patch August.
Nchls said:
Safetynet still fail. Could you explain how to get Safetynet pass? THanks
Click to expand...
Click to collapse
Did you move the image to cache and symlink with the correct comands? Check if you don't have sure, try the process again. And if you don't get the safety net working try the module.
I just applied the hotfix plus the "mv and ln" to my moto z play, I passed the entire safetynet check for the first time ever and Google Pay just works.
Thanks a million!!
p.s. I am running magisk 14.3 beta IIRC.
The trick with symlink worked. I can pass SafetyNet and HideRoot on my Moto Z play (7.1.1 Nougat - august security patch).
PS: there is an extra space before symlink parameter. it should be like this:
ln -s /cache/magisk2.img /data/magisk.img
Click to expand...
Click to collapse
razorsbk said:
The trick with symlink worked. I can pass SafetyNet and HideRoot on my Moto Z play (7.1.1 Nougat - august security patch).
PS: there is an extra space before symlink parameter. it should be like this:
Click to expand...
Click to collapse
Thanks! I gonna correct!!
Can I use the latest version of magisk (15.3)? It doesn't seem to work when i try to use Superuser functions in Automate
GiantPlaidSquirrel said:
Can I use the latest version of magisk (15.3)? It doesn't seem to work when i try to use Superuser functions in Automate
Click to expand...
Click to collapse
I relock my bootloader so i can't test or try another way. Sorry about that, but i don't know if something can be done to work

Has anyone tried magisk with the TB-8504x/f?

Did it work even with dm-verity?
I got it to work - installed magisk via twrp and was able to use su and run scripts at boot <3
I installed magisk and I can write files to /system, but when I reboot the device the files are removed from /system. What do I need to do so that files that are written to /boot or /system are persisted across reboot?
My main goal is to be able to update init.rc so that I can have the device power on when plugged into a charger
drizzle123 said:
I got it to work - installed magisk via twrp and was able to use su and run scripts at boot <3
Click to expand...
Click to collapse
I use Magic 20.3 or 20.4 on my two tablets.
One tablet is under stock Android 8.1.0
and another is under LineAgeOS16 - Android 9 Pie.
Both, give su for applications and ADB, but don't have system root for system folder.

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