[solved]soft-Brick phone after LCD dpi changes - Galaxy S II Q&A, Help & Troubleshooting

Hi,
I tried to change DPI through LCD density modder app to dpi 226 in my sgs2.
After that the phone dont boot-up and got stuck at yellow triangle screen
I can go to CMW mode but dnt have any backup in that.i flashed Cf root again to check if that work,but nothing happen
NOTE: it got bricked because of change in DPI.not because of flashing wrong kernel so Flashing kernel wont help me
What to do,please help me

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Can you mount USB in CWM to change the kernel ?
Because some kernels, like Siyah (I THINK ! I don't use Siyah...) purpose to clear some folder including DPI section...
So you can try to take one of this kernels, flash one, and find this option...
I'm not sure, just a supposition

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UlbaWan- said:
Can you mount USB in CWM to change the kernel ?
Because some kernels, like Siyah (I THINK ! I don't use Siyah...) purpose to clear some folder including DPI section...
So you can try to take one of this kernels, flash one, and find this option...
I'm not sure, just a supposition
Click to expand...
Click to collapse
Missed the part about it not being a kernel issue, did you?
hungryheart said:
Hi,
I tried to change DPI through LCD density modder app to dpi 226 in my sgs2.
After that the phone dont boot-up and got stuck at yellow triangle screen
I can go to CMW mode but dnt have any backup in that.i flashed Cf root again to check if that work,but nothing happen
NOTE: it got bricked because of change in DPI.not because of flashing wrong kernel so Flashing kernel wont help me
What to do,please help me
Click to expand...
Click to collapse
You should be able to connect to your computer in CWM recovery mode, and edit the dpi setting in your build.prop file.

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failing that, worst case scenario, just copy a new rom to ya sd and flash it in cwm, a custom one
seriously, you got bitten my friend, next time, do a nandroid backup and backup ya efs folder, double protection, coz seriously if ya gonna mess with stuff like the build.prop then ya need a backup plan.
If you really want to alter the dpi, then check the lcd density changers on google play, theres a few, but i know a couple of them let you test the dpi out first to see if it works on ya phone, if it doesnt it reverts back.

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ctomgee said:
You should be able to connect to your computer in CWM recovery mode, and edit the dpi setting in your build.prop file.
Click to expand...
Click to collapse
As above;
1. Download & instal Windows PC programs "Android Commander" and "NotePad++ "(not NotePad)
2. Boot into CWM Recovery
3. Connect to PC USB & allow/edit for any drivers to instal
4. Run Android Commander
5. Navigate to system/build.prop & copy to PC & edit ro.sf.lcd_density=240 with NotePad++. Check there are no entries added by the app (delete them if so) Save and exit
6. Replace build.prop with edited version
7. Exit program, connect USB and reboot
8. All else fails, wipe cache/Dalvik and reflash ROM.
Hope this helps
Edit: don't forget to remove/delete the LCD Modder app from data/app with Android Commander before rebooting, otherwise it may force your previous density changes and back to square one.
You can also extract the build.prop from your ROM download zip with 7Zip and use above method to replace it.
Sent from my GT-I9100 using xda premium

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Thank you all for your help
when i flashed CF-ROOT,i didn't work,but when i flashed STOCK KERNEL,it worked
i saw the odin log,stock rom has factory image file which correct the DPI.i think so
Thanks for giving your precious time

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I found this thread through google, so thought i might post my experiences for the next person that finds this the same way, maybe some of it will be relevant...
So i did the same thing with my galaxy Note: changed DPI with LCD density modder app, restarted and the phone wouldn't get past the white samsung screen.
I followed UpInTheAir's guide to step 7, but phone still wouldn't start. I hadn't made a backup of the EFS folder so i was getting pretty scared at this point as loading a new rom will wipe this folder and render the phone useless (as far as i understand)
I was reading elsewhere that the permissions need to be set to rw-r--r-- on the build.prop file, so i tried doing this with Android Commander with the phone in CWM recovery. Android Commander was spazzing out, error message when the program opens, constant "loading" bar going, but i just ignored all that. I went to /system/build.prop properties and tried to set the permissions to rw-r--r-- but after accepting that and going to properties again it hadn't updated the permissions.
I've never flashed a ROM before, or changed kernel, but i decided this might be a good time to learn.
I loaded franco.Kernel-r5 for galaxy Note (sorry if this is irrelevant in an S-II forum) but loading into CWM that is built into this kernel (i think it was a different version than i was using before) i was then able to update the permissions with Android Commander(tho it was still spazing out).
Restarted and BOOM she loaded. Understandably i was thanking God big time at that point
anyway, hopefully something in this mess of a post might come in useful to somebody , thanks for the good info UpInTheAir!

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Hello, I had the same problem and had to re-flash the firmware.
I've seen on dpi changers comments on market that A LOT OF PEOPLE get the softbrick.
i want to change my dpi.
how am i supposed to do it ?
I can't believe my phone can't stand changing DPI.

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Ive changed mine a few times by altering the build prop file but the icons were never centered properly. Eveything was smaller but moved towards top left of the screen. Since then i used Density Modder pro with no issues.
Sent from my GT-I9100 using xda app-developers app

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I have the same problem but i cant even get into cwm recovet. what can i do?

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"Unfortunatelly System UI has Stopped!"
Hello everyone!
I have a HUGE problem with my Galaxy S4 i9500 and I really need someone's help here... I changed the pixel density/screen resolution, with the "Density changer" from the "Pimp my rom" app (I'm root user) and I can't use my phone AT ALL(not even the status bar)!!. I can only access the Lock Screen and the Lock Screen shortcut icons(could because I tried formating the phone but nothing changed so now only lock screen)... Also lock screen is super small, because I think I clicked the 200dpi(I THINK) option.When I unlock the phone, to access to the UI the screen is total black and this 2 messages are being deplayed : "Unfortunatelly, System UI has stopped" and "Unfortunately,TouchWiz Home has stopped",I don't have CWM Recovery flashed. Please reply! :crying: HELP!

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Yiannis Hadjittofis said:
Hello everyone!
I have a HUGE problem with my Galaxy S4 i9500 and I really need someone's help here... I changed the pixel density/screen resolution, with the "Density changer" from the "Pimp my rom" app (I'm root user) and I can't use my phone AT ALL(not even the status bar)!!. I can only access the Lock Screen and the Lock Screen shortcut icons(could because I tried formating the phone but nothing changed so now only lock screen)... Also lock screen is super small, because I think I clicked the 200dpi(I THINK) option.When I unlock the phone, to access to the UI the screen is total black and this 2 messages are being deplayed : "Unfortunatelly, System UI has stopped" and "Unfortunately,TouchWiz Home has stopped",I don't have CWM Recovery flashed. Please reply! :crying: HELP!
Click to expand...
Click to collapse
First of all you will get better answers if you asked in your device's relevant thread, TouchWiz Home usually doesn't take too well to dpi changes, you need to install a custom launcher app like apex or Nova, try installing one via adb, and then reboot and select your custom launcher as default when the system prompts you to select a launcher.
Sent from my GT-I9100 using xda app-developers app

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Thanks for the reply
king_below_my_lord said:
First of all you will get better answers if you asked in your device's relevant thread, TouchWiz Home usually doesn't take too well to dpi changes, you need to install a custom launcher app like apex or Nova, try installing one via adb, and then reboot and select your custom launcher as default when the system prompts you to select a launcher.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Thanks for your help!! My phone is ok now..

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same issue
Having the same issue I'm using Asus memo pad smart 10. Stuck in the boot screen after I tried to change my LCD density through ROM toolbox. Been like that for days. Do I need to follow the same procedure?
Thx

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If you can enter recovery then flash maybe some DPI changer or what
Sent from my GT-I9100 using xda app-developers app

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can't use recovery when I try to, it gives me a android lying on its back with the message "error" managed to wipe data though, now I can boot it fully however when I get to my lock screen it says that UI launcher ASUS keyboard and audio wizard have all stopped
corrupted apps?

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king_below_my_lord said:
First of all you will get better answers if you asked in your device's relevant thread, TouchWiz Home usually doesn't take too well to dpi changes, you need to install a custom launcher app like apex or Nova, try installing one via adb, and then reboot and select your custom launcher as default when the system prompts you to select a launcher.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
i have this issue two but i factory reset my tablet because that would fix it and now the setup doesn't work and i can't fix it and the only thing i can do is the recovery menu if that helps if you have some sort of solution please let me know
many thanks ben

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Try resetting via adb
ben12345678901 said:
i have this issue two but i factory reset my tablet because that would fix it and now the setup doesn't work and i can't fix it and the only thing i can do is the recovery menu if that helps if you have some sort of solution please let me know
many thanks ben
Click to expand...
Click to collapse
Encountered the same error using screen shift (https://forum.xda-developers.com/android/apps-games/app-screen-shift-change-screen-t3138718) I may be too late but I hope It may help somebody
For JB 4.3 and above:
Code:
wm size reset
wm density reset
wm overscan reset
Below JB 4.3:
Code:
am display-size reset
am display-density reset

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i have the same problem but with my rooted galaxy note 4, i used an app to change my dpi but i set it from 640 to 140 and now the phone doesnt do anything except show me "Unfortunately the system ui has stopped" and it doesnt even show any icons, just my wallpaper and the tiny little error,, i tried fixing it with adb commands but my pc isnt authorized to my phone and i dont have a way to authorize it but usb debugging was on but i dont thing that will help, what do i do???

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3ryl said:
i have the same problem but with my rooted galaxy note 4, i used an app to change my dpi but i set it from 640 to 140 and now the phone doesnt do anything except show me "Unfortunately the system ui has stopped" and it doesnt even show any icons, just my wallpaper and the tiny little error,, i tried fixing it with adb commands but my pc isnt authorized to my phone and i dont have a way to authorize it but usb debugging was on but i dont thing that will help, what do i do???
Click to expand...
Click to collapse
Try booting your device into safe mode, it should boot without loading the app that you installed to modify dpi. If you successfully boot into safe mode, you can uninstall the app then reboot.
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