Develop Bugs

[Q] Getting a frackin' logcat on random reboots

Recent ROM update w/ app restore has resulted in some fairly consistent random reboots. This is first jelly bean device I've had that I've needed a logcat from, so I just learned that logging isn't that simple any more.
I've tried a couple of different methods to capture a log (aLogcat, Catlog, adb logcat), but never get output. Moved Catlog to a system app after reading in its store comments that that worked, but no joy. Granted read logs permission in terminal per another suggestion, still no go.
Any ideas how to get a log on the Note 2 to troubleshoot something like this?

Open your file manager with root access and go to /dev/log/ and check whether the file "main" and "system" exist or not

wcypierre said:
Open your file manager with root access and go to /dev/log/ and check whether the file "main" and "system" exist or not
Click to expand...
Click to collapse
System, yes, main, no.
I wonder if logging was turned off by this ROM's chef. I know some do that to improve performance. I'll check on that.
Sent from my SGH-T889 using Tapatalk 2

wcypierre said:
Open your file manager with root access and go to /dev/log/ and check whether the file "main" and "system" exist or not
Click to expand...
Click to collapse
System, yes, main, no.
I wonder if logging was turned off by this ROM's chef. I know some do that to improve performance. I'll check on that.
Sent from my SGH-T889 using Tapatalk 2

I don't know if this WL help you at all I really don't know how to read log cats but I do know that I use system tuner pro and one of the functions is log and when I go to it it appears to be a logcat. Also I used another app from the market I forget which I will to back and check. Also one other thing that maybe will help you in this situation is chain fire has an app that replaced your boot animation with a live log cat so when you boot it would kinda look like when you boot up your windows PC. You have to pay but its only like 2 bucks. And it says it is a real live log cat not per recorded. I don't know if any of that will help but just a suggestion.
---------- Post added at 10:27 PM ---------- Previous post was at 10:21 PM ----------
The other app was. Called logcat extreme

distortedloop said:
System, yes, main, no.
I wonder if logging was turned off by this ROM's chef. I know some do that to improve performance. I'll check on that.
Sent from my SGH-T889 using Tapatalk 2
Click to expand...
Click to collapse
Most probably so as some of the devs do remove the log files. Now, go to /system/etc/init.d/ and check every file in there for this line:
rm /dev/log/main
If you found that line, add a hash(#) in front of it to enable logcat so it will become
#rm /dev/log/main
If you want to disable the logcat again, just simply remove the hash(#)
If you can't find that line of code, then search for your apps(there are some apps that will delete /dev/log/main)

wcypierre said:
Most probably so as some of the devs do remove the log files. Now, go to /system/etc/init.d/ and check every file in there for this line:
rm /dev/log/main
If you found that line, add a hash(#) in front of it to enable logcat so it will become
#rm /dev/log/main
If you want to disable the logcat again, just simply remove the hash(#)
If you can't find that line of code, then search for your apps(there are some apps that will delete /dev/log/main)
Click to expand...
Click to collapse
That's enlightening stuff. I've never played around with init files and start up scripts.
Sure enough, one of them does remove the log, and remming it out has brought back logcat function.
Thank you so much for the help and the education.
Interestingly, my random reboots seem to have stopped for the time being, meaning I don't need the logs for now, but I like having them available.

distortedloop said:
That's enlightening stuff. I've never played around with init files and start up scripts.
Sure enough, one of them does remove the log, and remming it out has brought back logcat function.
Thank you so much for the help and the education.
Interestingly, my random reboots seem to have stopped for the time being, meaning I don't need the logs for now, but I like having them available.
Click to expand...
Click to collapse
First of all, you're welcome
I have been doing some research on logging features for the past few months, so I know how to troubleshoot some problems that are related to logging.
If you want to, you can take a look at my tool, AIOlog, which is a command line program to extract logs(which encourages me more to do more research on logging).
Anyway, have fun with your new knowledge and don't forget to spread it to those who needs it

Already shared the solution on the Jedi X ROM thread.
Your tool's in the play store?
Sent from my SGH-T889 using Tapatalk 2

distortedloop said:
Already shared the solution on the Jedi X ROM thread.
Your tool's in the play store?
Sent from my SGH-T889 using Tapatalk 2
Click to expand...
Click to collapse
Nope, as Playstore only allows apps that are compiled using their sdk while my tool is a tool compiled with g++.
But who knows? maybe I'll make a logcat app in the future(but I don't feel so as there's a lot of alternatives in the playstore)

Run this:
su
cat /proc/last_kmsg > /mnt/sdcard/last_kmsg.txt
This is the last syslog after a reboot and extremely helpful in debugging random reboots.
---------- Post added at 04:56 AM ---------- Previous post was at 04:55 AM ----------
wcypierre said:
Nope, as Playstore only allows apps that are compiled using their sdk while my tool is a tool compiled with g++.
But who knows? maybe I'll make a logcat app in the future(but I don't feel so as there's a lot of alternatives in the playstore)
Click to expand...
Click to collapse
Why not simply use the NDK?

fivefour said:
Run this:
su
cat /proc/last_kmsg > /mnt/sdcard/last_kmsg.txt
This is the last syslog after a reboot and extremely helpful in debugging random reboots.
---------- Post added at 04:56 AM ---------- Previous post was at 04:55 AM ----------
Why not simply use the NDK?
Click to expand...
Click to collapse
NDK increases the complexity of the app and there's better alternative such as catlog and alogcat.
Moreover, Google has implemented a restriction on apps logging so its another no no for me.

[Q] Please Help Me! Tab 3 10.1 Lost internal storage

I need help really bad!
Excuse me, my english! I'm from Finland.
Here is my problem.
I have less than a month old Galaxy Tab 3 10.1 wi-fi (GT-P5210)
I rooted tab with these instructions:
http://forum.xda-developers.com/showthread.php?t=2531784
Everything went fine, with the rooting I mean.
But then, I installed app GL to SD(root) https://play.google.com/store/apps/details?id=com.slf.ListglApp&hl=en
After install, I opened GL to SD(root) app. And I intended to move games from internal memory to external microsd.
It informed me something of rebooting, with very poor finnish translate. I accepted and device booted.
After reboot I noticed, that device has difficulties with internal memory. File browser just flashing and in settings->storage just hangs in calculating.
Google play store keeps crashing and when I connect tab to pc it show internal memory size 128Mb (and it should be 16Gb).
I uninstalled GLto SD(root) app, and hope for tab to normalize. But it didn't work. I restored tab to factory settings. But nothing.
My internal memory is gone and I can't install any apps cause Play Store won't work.
Please help me. I need to get this tab working again. How to I recover internal memory back to 16Gb?
Plese help.:crying:

Do a factory reset/full wipe
Edit: oh sorry, didn't notice factory reset :/
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
---------- Post added at 10:42 PM ---------- Previous post was at 10:40 PM ----------
Have you tried flashing a new frimware?
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T

Ripshock said:
Do a factory reset/full wipe
Edit: oh sorry, didn't notice factory reset :/
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
---------- Post added at 10:42 PM ---------- Previous post was at 10:40 PM ----------
Have you tried flashing a new frimware?
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
Click to expand...
Click to collapse
No I haven't. What do you mean with "new" firmware?
I have only that TWRP recovery what I flahed with Odin. as in the Rooting instructions.

I mean like a rom
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T

Ripshock said:
I mean like a rom
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
Click to expand...
Click to collapse
is there any ROMS to Galaxy Tab 3 10.1 ?
as New forum user I have to wait 5 minutes between posts...

iivari69 said:
is there any ROMS to Galaxy Tab 3 10.1 ?
as New forum user I have to wait 5 minutes between posts...
Click to expand...
Click to collapse
It's not actually a rom just follow the steps that I am gonna post
P.s download tapatalk and you will not wait 5 mins
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
---------- Post added at 11:03 PM ---------- Previous post was at 11:02 PM ----------
1) enable usb debugging (settings>developer options>usb debugging)
2) download odin 3.07 and unzip it http://forum.xda-developers.com/showthread.php?t=2189539
3) download and install latest samsung usb drivers http://forum.xda-developers.com/showthread.php?t=2038555
4) download frimware from here http://www.sammobile.com/firmwares/1/ select your device modelcountry, etc
5) unrar the frimware to a folder
6) turn off the device and then press and hold (home button +volume down+power) then you will get a warning choose continue by pressing once volume up
7) open odin then attach the usb cable between pc and the device and odin should tell you "added" and make sure auto-reboot and reset time are the only enable
8 ) click on pda and navigate to the folder which you have inserted the frimware in after you unrar it and choose the md5 file and wait
9)click start wait and don't do anything until there is a box which is upon "com 0" at the top left corner says "pass" and unplug the usb cable and you are done
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T

Ripshock said:
It's not actually a rom just follow the steps that I am gonna post
P.s download tapatalk and you will not wait 5 mins
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
---------- Post added at 11:03 PM ---------- Previous post was at 11:02 PM ----------
1) enable usb debugging (settings>developer options>usb debugging)
2) download odin 3.07 and unzip it http://forum.xda-developers.com/showthread.php?t=2189539
3) download and install latest samsung usb drivers http://forum.xda-developers.com/showthread.php?t=2038555
4) download frimware from here http://www.sammobile.com/firmwares/1/ select your device modelcountry, etc
5) unrar the frimware to a folder
6) turn off the device and then press and hold (home button +volume down+power) then you will get a warning choose continue by pressing once volume up
7) open odin then attach the usb cable between pc and the device and odin should tell you "added" and make sure auto-reboot and reset time are the only enable
8 ) click on pda and navigate to the folder which you have inserted the frimware in after you unrar it and choose the md5 file and wait
9)click start wait and don't do anything until there is a box which is upon "com 0" at the top left corner says "pass" and unplug the usb cable and you are done
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
Click to expand...
Click to collapse
OK. I registered to sammobile.com and it takes about 6 hours to download file from file hosting service.
so I have to come back later. I really hope your instructions will work.
Ps. I cant download tapatalk cause my tablet won't let me load anything... or is there pc version of tapatalk?

iivari69 said:
Ps. I cant download tapatalk cause my tablet won't let me load anything... or is there pc version of tapatalk?
Click to expand...
Click to collapse
I don't know :/
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T

I had email conversation with GL to SD(root) developer tnslf2k and he guide me through sdcard backup recovery.
Now I have tablet running as it supposed.

Great
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
---------- Post added at 07:48 PM ---------- Previous post was at 07:43 PM ----------
If you could please post the guide in here? so if anyone has a problem, he can get it fix and thanks
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T

Ripshock said:
Great
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
---------- Post added at 07:48 PM ---------- Previous post was at 07:43 PM ----------
If you could please post the guide in here? so if anyone has a problem, he can get it fix and thanks
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T
Click to expand...
Click to collapse
It wasn't exactly a guide...
It was about 40 emails between dev and me.
There were couple of trys, which didn't take affect.
But with Root explorer, I checked that there is sdcard.backup file in /system/bin/, then
I deleted /system/bin/sdcard and copied sdcard.backup to /system/bin/
Reboot.
It didn't yet make any difference.
Later renamed sdcard - copy.backup to sdcard (which should had done at first place, I think).
Then I installed Terminal emulator and after commandlines:
----------------------------------
su
mount -o rw,remount /system
chown root.shell /system/bin/sdcard
chmod 755 /system/bin/sdcard
chcon ubject_r:sdcardd_exec:s0 /system/bin/sdcard
----------------------------------
and Reboot. I finally got it working.
I will not take any responsibility of these instructions.
I was guided by dev of that app which caused problems with my device.
Developer is tnslf2k and he is registered user here on xda-developers forums.
If someone face similar problems,I suggest to turn to developer of problem causing app.
I personally got help fast and I'm verry happy with "customer service".

Im not versed in command line stuff. But can someone advise what these command lines did ?
Does it sound like his "sdcard" path got changed or deleted ? And that made it disappear?
And the command lines restored the path or name ?
Just wondering.
Thanks - glad it got fixed.
iivari69 said:
It wasn't exactly a guide...
It was about 40 emails between dev and me.
There were couple of trys, which didn't take affect.
But with Root explorer, I checked that there is sdcard.backup file in /system/bin/, then
I deleted /system/bin/sdcard and copied sdcard.backup to /system/bin/
Reboot.
It didn't yet make any difference.
Later renamed sdcard - copy.backup to sdcard (which should had done at first place, I think).
Then I installed Terminal emulator and after commandlines:
----------------------------------
su
mount -o rw,remount /system
chown root.shell /system/bin/sdcard
chmod 755 /system/bin/sdcard
chcon ubject_r:sdcardd_exec:s0 /system/bin/sdcard
----------------------------------
and Reboot. I finally got it working.
I will not take any responsibility of these instructions.
I was guided by dev of that app which caused problems with my device.
Developer is tnslf2k and he is registered user here on xda-developers forums.
If someone face similar problems,I suggest to turn to developer of problem causing app.
I personally got help fast and I'm verry happy with "customer service".
Click to expand...
Click to collapse

roninep said:
Im not versed in command line stuff. But can someone advise what these command lines did ?
Does it sound like his "sdcard" path got changed or deleted ? And that made it disappear?
And the command lines restored the path or name ?
Just wondering.
Thanks - glad it got fixed.
Click to expand...
Click to collapse
Here I did a script for you, it has the same command lines
download and install "rom toolbox lite" then open it then "scripter" then "add" on top right then import the script which is inside the zip file then tap on "fix sd card" then run and execute as root
but this script only works if you have done a back up so do as he said
iivari69 said:
But with Root explorer, I checked that there is sdcard.backup file in /system/bin/, thenI deleted /system/bin/sdcard and copied sdcard.backup to /system/bin/Reboot.*It didn't yet make any difference.*Later renamed sdcard - copy.backup to sdcard (which should had done at first place, I think).Then I installed Terminal emulator and after commandlines
Click to expand...
Click to collapse
Disclaimer: I am not responsible of anything that might happen to your tab

Help with reset...

So I decided to try to run ubuntu touch on my Samsung Galaxy Nexus(verizon). All went well, but now it seems I cant start the phone, can only get into fastboot mode. Can anyone please walk me through the steps of putting stock android back on my phone? I have adb and fastboot installed on my computer. There's a guide here that walks you through the process of returning the phone to stock software/firmware, but it requires USB debugging to be on, which I can't turn on because the phone won't boot up. I greatly appreciate any help!!!
Phone Info(what's written in fastboot):
PRODUCT NAME-Tuna
VARIANT- toro 32GB
HW VERSION- 9
BOOTLOADER VERSION: PRIMELC03
BASEBAND VERSION- I515.FK02 CDMA-I515.FK01
CARRIER INFO- NONE
SIGNING- production
LOCK STATE- UNLOCKED

You dont need USB debug on in order to use fastboot
---------- Post added at 05:39 PM ---------- Previous post was at 05:38 PM ----------
Debugging is only needed if using adb.
But if u already in fastboot bootloader mode then u don't need to do "adb reboot bootloader" command

ashclepdia said:
You dont need USB debug on in order to use fastboot
---------- Post added at 05:39 PM ---------- Previous post was at 05:38 PM ----------
Debugging is only needed if using adb.
But if u already in fastboot bootloader mode then u don't need to do "adb reboot bootloader" command
Click to expand...
Click to collapse
Thanks for the pretty fast response! I'm still lost as to how I can make everything go back to the way it is (i.e, get rid of ubuntu and get android back on ) . Definitely my last time trying to muck around with roms and such D;

vsp3317 said:
Thanks for the pretty fast response! I'm still lost as to how I can make everything go back to the way it is (i.e, get rid of ubuntu and get android back on ) . Definitely my last time trying to muck around with roms and such D;
Click to expand...
Click to collapse
Don't give up!
Once you've done it once or twice it becomes easier, everything starts to make sense
Did you download one of the Google factory img for toro to your computer? Get it from here
https://developers.google.com/android/nexus/images
(It will be under the Mysid/toro name) any of the available ones will work that are for toro.
---------- Post added at 06:19 PM ---------- Previous post was at 06:17 PM ----------
Then you just uncompress the file, open command prompt(aka terminal) in that folder/directory , put device into fastboot mode(bootloader), and then execute the flash all script that comes with the factory IMG download.
---------- Post added at 06:26 PM ---------- Previous post was at 06:19 PM ----------
Oh, and to easily open a command prompt in that directory, uncompress the factory img download file from that site linked above, then open the folder to view it's contents. Hold shift and right click within the folder and choose "open command prompt"
Then all you should need to do is put "flash-all.exe" and hit enter in the command prompt that pops up once device is connected and in fastboot(bootloader)mode. (No quotes...just enter the text) and then be patient. The flashing of the radio files might seem to take a long time especially the CDMA radio. Do NOT unplug or anything before it is completed fully)
If need anymore info ask away

ashclepdia said:
Don't give up!
Once you've done it once or twice it becomes easier, everything starts to make sense
Did you download one of the Google factory img for toro to your computer? Get it from here
(It will be under the Mysid/toro name) any of the available ones will work that are for toro.
---------- Post added at 06:19 PM ---------- Previous post was at 06:17 PM ----------
Then you just uncompress the file, open command prompt(aka terminal) in that folder/directory , put device into fastboot mode(bootloader), and then execute the flash all script that comes with the factory IMG download.
---------- Post added at 06:26 PM ---------- Previous post was at 06:19 PM ----------
Oh, and to easily open a command prompt in that directory, uncompress the factory img download file from that site linked above, then open the folder to view it's contents. Hold shift and right click within the folder and choose "open command prompt"
Then all you should need to do is put "flash-all.exe" and hit enter in the command prompt that pops up once device is connected and in fastboot(bootloader)mode. (No quotes...just enter the text) and then be patient. The flashing of the radio files might seem to take a long time especially the CDMA radio. Do NOT unplug or anything before it is completed fully)
If need anymore info ask away
Click to expand...
Click to collapse
Wow, I can't thank you enough man!!! :highfive: That worked like a charm , no problems at all . And oh it's "flash-all.bat" not .exe, for the people that might come across this thread later. Thanks again though, I really don't know what I would've done. Definitely going to do a **** ton more research next time I decide to go and flash a rom haha.

vsp3317 said:
Wow, I can't thank you enough man!!! :highfive: That worked like a charm , no problems at all . And oh it's "flash-all.bat" not .exe, for the people that might come across this thread later. Thanks again though, I really don't know what I would've done. Definitely going to do a **** ton more research next time I decide to go and flash a rom haha.
Click to expand...
Click to collapse
No problem buddy
That's what these forums are for, learning, helping, development, all that good stuff! Just happy it went smoothly for ya.
I think it used to be named .exe, at least it shows as exe on my laptop but I use Linux so it could just be seeing it differently(since I have wine installed)
There is usually a windows executable and a Linux .sh script that can be executed from the terminal to start the process.
See, it's not all THAT bad now is it? Especially since now you know how to do it, messing up the device isn't such a daunting thing anymore lol.
As for keeping status 7 from happening again I highly recommend bookmarking the TWRP or CWM official sites so that before flashing things in the future, you can make sure you have the most up to date custom recovery installed by comparing what is available vs what you have installed(booting into recovery mode will usually have the version info somewhere on the main screen) and of course having a recent nandroid backup made within your current custom recovery. I prefer TWRP but it's a personal choice to each user which they use
Just don't be afraid to play around
Congrats again on your first soft brick&restore! Lol
It's such a relieving feeling once you bring device back from the dead ain't it?

How to get onscreen buttons on Redmi 1s

step 1 – Make sure your RedMi 1s is rooted.
Step2- Install ‘ Root explorer ’ from Play store.
Step 3- Open Root Explorer and allow Super user acess
Step 4-In Root Explorer, open the Device (/) directory from Menu > Local > Device. Go to system folder and open the build.prop file with RB text Editor Or any other Editor
Step 5- Edit the file by selecting the edit option from top right corner. Then scroll down to the bottom and add the line qemu.hw.mainkeys=0 at the last.
Step 6 - Go back and select ‘Yes’ to save the build.prop file.
Step 7- Reboot your phone
Here You Go..

After that I rebooted my mobile but I didn't get onscreen keys.. Can u help me..?

aiyalsenthil said:
After that I rebooted my mobile but I didn't get onscreen keys.. Can u help me..?
Click to expand...
Click to collapse
please... can you give me exact steps ... what you did? . Which ROM are you using..?. have root permission? did you correctly type the codes..? did you save the file.??

I have added that line in build.prob at last . I m using miui 45 stable ROM. The mobile is rooted.

You don't have access for OK button on SIM Pin and can't accept it. It stays beneath the soft keys. There is a way around this issue, like a line code to move the PIN pad a litter higher?

Here's a video tutorial I made for the same
http://youtu.be/8R3acOV9djs
Sent from my HM 1SW using XDA Free mobile app

im unable to edit build.prop coz at end it shows it is read only document cant be edited

shubham.w321 said:
im unable to edit build.prop coz at end it shows it is read only document cant be edited
Click to expand...
Click to collapse
Mount /system as r/w in ES file explorer or anything else which does the function !

We can also use third-party apps
Sent from my HM 1SW using XDA Free mobile app
---------- Post added at 05:46 PM ---------- Previous post was at 05:41 PM ----------
Don't do such thing just go on play store and download a app called softkey enabled.
Sent from my HM 1SW using XDA Free mobile app

For full details go here mtblogr.com/how-to-enable-soft-keys-on-xiaomi-redmi-1s-mtblogr-com

Works perfectly on RedMi 1S with CM11 R14 ! Nice share!

use the app in the description
Or you can use this app for onscreen buttons
Code:
https://play.google.com/store/apps/details?id=net.alviano.android.softbuttons&hl=en

can we set the transparent on navbar?

my girl rooted my phone

HTC desire HD I am not sure of configuration I can not look at anything or even change or delete anything I did not even know she did it till I tried to root it myself I looked at the my app in play store and chainDD is instaled as well as hide my root, along with busy box, cryomods,rom manager anyway i want control back and to see what she is doing. I can not do a factory rest all that does is reset the APN all the apps and setting are the same. Neither does booting in recovery it shows me there is a image but when I try to load it it says there is no file or cant access the file. I tried flashing a new rom today it says need root access or root access denied. as well as hiding the su and binaries the are several other apps that are hidden. I tried that show or find hidden admin apps it scanned for all of about half a second and came back no hidden apps. some of my apps do not even do what they are supposed to. I am a noob all I know is what I have learned because of this. Please help!!!!

If your recovery gives you those messages I think you have a stock recovery.If she has root your phone by unlocking your bootloader she should have use a custom recovery to flash a superuser app.This means she could have restore the stock recovery on purpose or she has use some exploit to get the root.
Shutdown you phone and press (power button)+(vol- button) [Do not let them untill you see your bootloader]
Download ace tools from here.
Make sure you have HTC drivers installed.
After that open a cmd prompt and go to the folder you extracted the ace tools.(If you are using windows7 or later press shift+right click-->open with cmd)
Then give the command
Code:
fastboot getvar all
And copy-paste the results here (except your IMEI number).
---------- Post added at 05:39 AM ---------- Previous post was at 05:24 AM ----------
If your bootloader is unlocked with HTC_DEVs way you should see in your bootloader screen an ***Unlocked*** status.
(Your bootloader status could be locked/relocked/unlocked)
---------- Post added at 05:57 AM ---------- Previous post was at 05:39 AM ----------
As long as she has root your device without you know about that she could spying all your messages,calls and all your personal stuff you have inside.She could also take control of your device and even if you find what she is doing to remotly erase all the important clues from an other device.Be carefull.