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[Q] Samsung Galaxy S2 - problem! please help!

Hi! I am new to this forum, and I searched for all the threads related to the problem I have, but they didn't solve them, so I am posting a new thread.
I live in India, and I bought a Samsung SGS2- GT i9100 from here itself back in June 2011. I updated it to 2.3.6 back in December, and rooted it in February.
Samsung hasn't released any ICS update here, so I changed my CSC code from INU to NPL, where the ICS update had been launched. After I updated my phone to ICS 4.0.3 XWLP7 through Kies, I decided to root it. After rooting, whenever I connect my phone to Kies to restore all my data, which I backed up using Kies, I get this error message "Cannot start service on the device. Please disconnect and reconnect the device." All of my data- my contacts, messages, memos, everything, is backed up via kies, but it fails to connect my device. I really want the data back.
I believe that because of the root kies fails to detect my phone.
I am considering to flash the latest stock firmware (Gingerbread 2.3.6 XWKL1) available in my country, but I read somewhere that if I flash any firmware via odin, kies will neither upgrade my device's firmware, nor detect it.
Is there any way I can unroot my phone, or flash an original firmware but still use all the features of kies like nothing happened?
An early answer will be deeply appreciated! Thanks in advance!

Do a full reset
Check galaxy s2 forum for details.
Hit thanks there's a button.Imetumwa kutoka U8150 kutumia XDA

Allanitomwesh said:
Do a full reset
Check galaxy s2 forum for details.
Hit thanks there's a button.Imetumwa kutoka U8150 kutumia XDA
Click to expand...
Click to collapse
By 'full reset', do you mean a factory reset? I already tried that, didn't work.
I also tried unrooting using this method http://forum.xda-developers.com/showthread.php?t=1501719.
It uninstalled the superuser, but when rebooted, I still get the yellow traingle and the CWM app on my app drawer.
By the way, If I flash a stock firmware on my SGS2 using Odin, will I be able to use Kies like before, that is backup and restore my phone using kies?

Still using KIES should be possible, see http://www.dialandroid.com/2012/03/how-to-gobackuse-kies-update-after.html
Generally, I would recommend to stop using KIES for backups If you want your data back you can still try to connect your phone, go to wireless settings-> usb settings and try switching between KIES and usb storage.
What also helped in some cases is to activate debugging and then deactivate it again.
After you got your data back you can still update your firmwares without KIES.
If you have still problems with KIES you can try maybe this programm here http://forum.xda-developers.com/showthread.php?t=1477991

diwakarchopra said:
By 'full reset', do you mean a factory reset? I already tried that, didn't work.
I also tried unrooting using this method http://forum.xda-developers.com/showthread.php?t=1501719.
It uninstalled the superuser, but when rebooted, I still get the yellow traingle and the CWM app on my app drawer.
By the way, If I flash a stock firmware on my SGS2 using Odin, will I be able to use Kies like before, that is backup and restore my phone using kies?
Click to expand...
Click to collapse
After i tried to unroot using the above method, the superuser app was uninstalled, however i still get the yellow triangle on boot, and the CWM app is still present on my app drawer. when i open it, it say superuser app not found. when i try to download the superuser app from the play store, it is unable to update the superuser binaries.

You'll forgive me I don't have a galaxy s2. What I meant was unroot back to official ics or the process that will restore your phone back to warranty conditions... (is that what Odin is for?). KIES should behave then,also,when my friend's galaxy pop isn't recognised he turns on and off debugging and it works.
EDIT : Like so ↓
http://galaxys2root.com/galaxy-s2-unroot/how-to-unrootunbrick-your-galaxy-s2-i9100-ics/
Imetumwa kutoka U8150 kutumia XDA

murr4y said:
Still using KIES should be possible, see http://www.dialandroid.com/2012/03/how-to-gobackuse-kies-update-after.html
Generally, I would recommend to stop using KIES for backups If you want your data back you can still try to connect your phone, go to wireless settings-> usb settings and try switching between KIES and usb storage.
What also helped in some cases is to activate debugging and then deactivate it again.
After you got your data back you can still update your firmwares without KIES.
If you have still problems with KIES you can try maybe this programm here http://forum.xda-developers.com/showthread.php?t=1477991
Click to expand...
Click to collapse
I first flashed the official gingerbread 2.3.6 XWKL1 on my phone using kies, the used the www.dialandroid.com link to enable using kies. then i restored my messages and contacts from the backup. then i changed csc code and updated to XWLP7 ICS 4.0.3 firmware. Now I have my contacts and messages back, and everything is working perfectly. I still haven't rooted it again yet, should I do it?
And another thing, now news started coming up that the new SGS2 gt i9100 handsets, which were imported in April 2012 have ICS 4.0.3 preloaded (links- http://bit.ly/Kih0tL , http://bit.ly/K5sQY6 and http://bit.ly/Kb96m2).
The new firmware which comes preloaded is the same build, and has same baseband version, PDA, CSC and PHONE codes, so is the firmware I am currently running, which I installed using Nepal (NPL) CSC official, and do I still have my warranty?
P.S. After updating for the second time, all my contacts and messages were there thankfully, but when I connected it back to Kies, the same error message of 'Cannot start service on device. Please disconnect and reconnect.' appears.

diwakarchopra said:
I first flashed the official gingerbread 2.3.6 XWKL1 on my phone using kies, the used the www.dialandroid.com link to enable using kies. then i restored my messages and contacts from the backup. then i changed csc code and updated to XWLP7 ICS 4.0.3 firmware. Now I have my contacts and messages back, and everything is working perfectly. I still haven't rooted it again yet, should I do it?
And another thing, now news started coming up that the new SGS2 gt i9100 handsets, which were imported in April 2012 have ICS 4.0.3 preloaded (links- http://bit.ly/Kih0tL , http://bit.ly/K5sQY6 and http://bit.ly/Kb96m2).
The new firmware which comes preloaded is the same build, and has same baseband version, PDA, CSC and PHONE codes, so is the firmware I am currently running, which I installed using Nepal (NPL) CSC official, and do I still have my warranty?
P.S. After updating for the second time, all my contacts and messages were there thankfully, but when I connected it back to Kies, the same error message of 'Cannot start service on device. Please disconnect and reconnect.' appears.
Click to expand...
Click to collapse
Hi,
You could try this:
- open kies, connect phone to the computer (ignore kies for now)
- while the phone is connected power off your phone by pressing 10s on the power button, and after this power it back on without disconnecting.
- kies should now see your phone
If you have the yellow triangle displayed or the hardware counter incremented chances are your warranty is void. However you can flash a stock firmware and use a USB jig to reset your counter (you might need to flash another bootloader though, Samsung fixed the latest bootloaders to ignore the jig).
Cheers,
Stefan.
P.S.: if this helped please use thanks.

(sorry for the late reply, was out of town for some days )
thank you all for your help!
I finally cracked it, and ICS was officially launched in India!
I changed my csc code back to INU, reflashed GB 2.3.6 XWKL1, and used this (http://www.dialandroid.com/2012/03/how-to-gobackuse-kies-update-after.html) method to get kies to recognize my phone. then i updated to the official Indian one with kies, and now everything works fine! Thanks once again!

Safest way back from ICS (UK) to ICS (US)

Like many others, I have installed ICS (UK), no root, or other mod,. and would like to change to stock ICS (US); however, now KIES does not recognize my 6210 (WiFi) as an "eligible" tablet. Evidently it may be necessary for me to go back to stock using a factory reset (do not like to do that but apparently must) and then use KIES to upgrade.
For those of you that have been in the same boat, and have successfully reverted to stock ICS (US); I (and I am sure others) would like your advice on the best way to revert back to stock.
In that regard I have the following questions;
If I do a "Factory Reset" will it reinstall HC (US) and not HC (UK) ?
Would a better course be to install "Cellular South" (US) with Odin, or would this still be non-stock?
The only thing that makes me hesitant about doing a "Factory Reset" is the potential for the "Brick Bug".
Your comments and advice are appreciated.

I was still on Honeycomb and installed the cellular south firmware using Odin. Everything works including IR and KIES shows my tablet has the latest firmware update. Hope this helps.
Sent from my GT-P6210 using xda premium

A factory reset will reset it to ics with all data wiped. To go back to honeycomb u are going to have to use odin and flash the honeycomb firmware.
Sent from my GT-P6210 using Tapatalk 2

No need to go back to HC or factory reset, just flash the US ICS over the existing UK using ODIN. Once you reboot your device you not notice the difference with the exception of being able to setup OTA and Kies with once again recognize your device.

ColMustard said:
No need to go back to HC or factory reset, just flash the US ICS over the existing UK using ODIN. Once you reboot your device you not notice the difference with the exception of being able to setup OTA and Kies with once again recognize your device.
Click to expand...
Click to collapse
This
Sent from my GT-P6200 using Tapatalk 2

Thanks to those who helped
Thanks for the input guys. Based on what I am hearing it sounds like Cellular South via Odin is the best way forward. I really do not want to lose all my data if not necessary. Thanks again.

cbill702 said:
Thanks for the input guys. Based on what I am hearing it sounds like Cellular South via Odin is the best way forward. I really do not want to lose all my data if not necessary. Thanks again.
Click to expand...
Click to collapse
I can confirm this is what I did...just flash it over the UK version. worked fine for me :good:

I was able to flash from UK to US ICS via mobile Odin without wiping anything and am running just fine. Just make sure that you unfreeze any apps beforehand.

Factory Reset 6210

Looking to gift my 7+ to my sister by doing a factory reset to return to unrooted stock. Flashed the European ICS a while back from HC via Mobile ODIN, Been reading about the Superbrick Bug on some Samsung devices has me a tad leery.
Probably know the answer but thought I'd ask regardless. Any instances of problems with reset given the above 7+ profile? Now that US ICS is out would quite probably update to US ICS afterwards.
Suggestions? Thoughts? Idle ramblings?
thanks

skeeterpro said:
Looking to gift my 7+ to my sister by doing a factory reset to return to unrooted stock. Flashed the European ICS a while back from HC via Mobile ODIN, Been reading about the Superbrick Bug on some Samsung devices has me a tad leery.
Probably know the answer but thought I'd ask regardless. Any instances of problems with reset given the above 7+ profile? Now that US ICS is out would quite probably update to US ICS afterwards.
Suggestions? Thoughts? Idle ramblings?
thanks
Click to expand...
Click to collapse
As of right now be sure that you all are extemely cautious when trying to flash any type of ICS package (be it firmware, a ROM, or any type of system running it). Our tablet may have an issue with ICS as many other galaxy devices have. A bug currently exists that corrupts the mounting of the data partition on the device which *MAY* lead to a permanent hard bricking of your device.
This is currently a very RARE issue, however, those who are not well educated in Android development and that do not know how to 100% reset their tablet should refrain from flashing any type of ICS ROM or ODIN package.
If you have already flashed an ICS ODIN package or are running CM9 safely and have been for a good amount of time.
For those of you who insist on upgrading to ICS, backup your entire ROM and make sure that you have the stock HC ODIN package. Although it probably won't help having them if you are hard bricked.
My personal experience is positive, from honeycomb , i am past to CM9 , then with ODIN to flashing ICS , I do not have locked the device , there were problems with bootloop ,but solved by using a wipe data , factory reset from the recovery..

skeeterpro said:
Looking to gift my 7+ to my sister by doing a factory reset to return to unrooted stock. Flashed the European ICS a while back from HC via Mobile ODIN, Been reading about the Superbrick Bug on some Samsung devices has me a tad leery.
Probably know the answer but thought I'd ask regardless. Any instances of problems with reset given the above 7+ profile? Now that US ICS is out would quite probably update to US ICS afterwards.
Suggestions? Thoughts? Idle ramblings?
thanks
Click to expand...
Click to collapse
If you need to reset it, DO NOT FACTORY RESET FROM ICS RECOVERY. Flash back to hc with Odin, then do a factory reset there, or install cwm recovery and reset it from there (probably the route I would take, as it is far easier)
Sent from my myTouch 4g via Tapatalk

as per what i did, i have done factory reset from within the settings menu, which rebooted my device to stock recovery.
the initial reset was fine, but when i flashed the new asian ICS firmware, i did a reset from the stock recovery itself, which have bricked my tab.
so, be careful with factory reset, as it also uses the default recovery (correct me if i understand it wrong).

[Q] JB update via Kies - Any precautions?

Hello,
I have an ATT Skyrocket on ICS (I727 UCLIC3). It's all stock and not rooted.
When I connected to Kies, I get a notification stating Android 4.1.2 I727 UCMC1 is available
1. I wanted to check if this update any known issues? and if i should take any precautions?
2. If I don't like this JB, is there an option to revert back to stock ICS? or is it point of no return?
If yes to question #2, How do I do a full back up before update? Should install CWM or TWRP for that?
And then I have to factory reset before JB update so the custom recovery won't interfere with JB upgrade?
Thx

Best advice is for you to read all of the stickies in the Skyrocket sub forums. Also, read the threads that have already been started about the update. The answers to all of the questions you asked and much more are there. It will also help you to learn ways to prevent hard or soft bricks, and what to do if you encounter issues. Good luck.

If you install CWM, you need to be rooted. If your rooted, you can't update to JB. Also, there is a thread with issues of JB. http://forum.xda-developers.com/showthread.php?t=2230909
I am pretty sure there is a way to do a backup on stock. Forgot though. Search though. The answer could be there.

Thx.
One more question: Should I reset factory reset my skyrocket? (before I let Kies update it to JB)?
I may have uninstalled or disabled some at&t bloatware... hence wondering it's better to factory reset before JB update...

gcretro said:
Thx.
One more question: Should I reset factory reset my skyrocket? (before I let Kies update it to JB)?
I may have uninstalled or disabled some at&t bloatware... hence wondering it's better to factory reset before JB update...
Click to expand...
Click to collapse
Not necessary to revert to factory settings before you update using kies, sure all the settings of your currant rom will be lost once you're on JB, but data on your internal sdcard should be left intact like pictures and music..Better to back it up some where before you proceed..

I didn't do anything at all before updating (I use the standard AT&T firmware) and all I really lost was my home screen layouts; all my apps were still there, settings intact, still logged on as applicable. I did have a moment of panic when the phone first started up when it brought up the AT&T app that sets up a new phone from scratch. I thought that meant that it had done a full factory reset, but after getting out of that everything was there except for the re-initialized home screens.

I did the JB update via kies. So far all good. yes, I had to resetup my app shortcuts.
I read that this update should provide skyrocket users with the "Smart Stay" feature... but i don't see it anywhere under settings.
Btw, should i factory reset my phone now AFTER JB update? in case something is still not activated or something

gcretro said:
I did the JB update via kies. So far all good. yes, I had to resetup my app shortcuts.
I read that this update should provide skyrocket users with the "Smart Stay" feature... but i don't see it anywhere under settings.
Btw, should i factory reset my phone now AFTER JB update? in case something is still not activated or something
Click to expand...
Click to collapse
If everything seems to be working, don't factory reset. With factory reset you will lose your apps and settings.
Sent from my SGH-I727 using xda app-developers app

[Q] Default Galaxy Tab 7.0 Plus (GT-P6210) will not flash or Factory Restore

I've been asked to look at a friends Galaxy Tap 7.0 plus (GT-P6210) tablet as they want it restoring to factory defaults.
I've tried the basic factory Restore but this goes through the motions and then when it reboots all previous apps and settings are back.
I've tried to flash the firmware from the Samsung firmware site using the SD Card method and using ODIN but still get the apps and settings back.
Think I'm ready to use it as target practice.
Anyone come across this before?
Seems like it is locked in some way but no idea how. I've not had much experience with Samsung's just cheap nasty Arnova tablets.
Cheers

Sydknee69 said:
I've been asked to look at a friends Galaxy Tap 7.0 plus (GT-P6210) tablet as they want it restoring to factory defaults.
I've tried the basic factory Restore but this goes through the motions and then when it reboots all previous apps and settings are back.
I've tried to flash the firmware from the Samsung firmware site using the SD Card method and using ODIN but still get the apps and settings back.
Think I'm ready to use it as target practice.
Anyone come across this before?
Seems like it is locked in some way but no idea how. I've not had much experience with Samsung's just cheap nasty Arnova tablets.
Cheers
Click to expand...
Click to collapse
Have you tied upgrading to jelly bean official or a stable rom ?
On what android version are you currently your not giving us any info about what is on the device
Have you tried upgrading to jellybean and then factory reset ? on what OS version are you on now

matthys said:
Have you tied upgrading to jelly bean official or a stable rom ?
On what android version are you currently your not giving us any info about what is on the device
Have you tried upgrading to jellybean and then factory reset ? on what OS version are you on now
Click to expand...
Click to collapse
Tried a few different versions but nothing works, the original comes back.

Factory reset from recovery mode never failed me. Or unless after u factory reset it and the google acc u log in from the tab sync back all the apps installed on it before.

1809 said:
Factory reset from recovery mode never failed me. Or unless after u factory reset it and the google acc u log in from the tab sync back all the apps installed on it before.
Click to expand...
Click to collapse
Sydknee69 said:
I've been asked to look at a friends Galaxy Tap 7.0 plus (GT-P6210) tablet as they want it restoring to factory defaults.
I've tried the basic factory Restore but this goes through the motions and then when it reboots all previous apps and settings are back.
I've tried to flash the firmware from the Samsung firmware site using the SD Card method and using ODIN but still get the apps and settings back.
Think I'm ready to use it as target practice.
Anyone come across this before?
Seems like it is locked in some way but no idea how. I've not had much experience with Samsung's just cheap nasty Arnova tablets.
Cheers
Click to expand...
Click to collapse
friend ur phone bootloader is locked ..so u first need to unlock ur bootloader then only u can upgrade or install any other roms ..u google it n u surely will find the solution ..sorry i can't send u the file coz i don't have the file anymore.