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By alvcross, Member on 21st December 2015, 10:42 PM
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Hello....I bricked my I927 when I accidently formatted my efs partition when using EFS professional .....my phone boots in download mode.....but only boots till samsung logo screen.....I tried various things like installing stock GB and ICS through odin and installing custom firmware but phone boots onle till samsung logo and then lights up with sone stange colored thin lines and screen goes off.....In TRWP I get a "unable to mount preload" error whenever I try to install somethiing.....I suspect that the EFS partiton is corrupted and needs to be repartioned....I had backupped the efs folder when my phone was working before.....its in a tar format.....I read somwhere that someone made a recovery.zip out of his backedup EFS.IMG and flashed it with CWM solved his problems which were exactly similar to mine.....can somebody on the forum make a recovery.zip for I927 with update binary and script so that I can add the backedup EFS image to it and flash it with CWM? Please.....this would also help many others who are facing similar issues.....and also what do I do regarding the "unable to mount preload" error? I need to repartition and tried to install hemdall.....but get the common .dll error even after following all the instructions and installing C++ 2010.....
 
 
22nd December 2015, 08:29 PM |#2  
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Hi, k one thing after the other.

Do you have repartitioned anything?
Do you have adb in place and does adb works when in TWRP?
The easiest thing would be to connect by adb then mount /efs and then restore the efs backup. The good is that you will have a good chance to recover your device. Maybe you need to reformat /efs but that depends.

Which timezone do you live? Maybe a Teamviewer session would be helpful?


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24th December 2015, 01:44 PM |#3  
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Thank you for your reply sir...
THANKS FOR THE REPLY SIR....YES I WAS ABLE TO GO INTO CWM RECOVERY AND CONNECT THE PHONE WITH MINIMAL ADB FASTBOOT.....AND AFTER SPENDING ALMOST 2 DAYS CONTINUOUSLY TRYING TO FIND THE PROBLEM USING GOOGLE, I TRIED DIFFERENT COMMANDS ON ADB TO GET EFS BACK OJ THE PHONE....BUT WITH NO SUCCESS...... MY EFS BACKUP IS IN TAR FORMAT......IT WAS MADE USING GALAXYSIMUNLOCK BY SPOCKY.....I LATER TYPED IN 'ADB MESG'.....OR SOMETHING SIMILAR TO THAT COMMAND, AND FOUND OUT THAT ALL THE PARTITIONS ON mmcblk0 were mangled up with strange letters.....for eg, p1, p2, p3 and so on had strange characters written next to them.....SO I TRIED TO RE-PARTITION THE WHOLE THING WITH SDPARTED......AND IT RE-PARTIONED THE SYSTEM (AROUND 7000MB).....MMCBLK01 (AROUND 500MB).....AND ANOTHER THING I CANT REMEMBER NOW.....BUT WHEN IT FINISHED THE JOB, IT GAVE ME A mmcblk02 ERROR.....AND WHEN WHEN I CHECKED MY PHONE ON CWM SCREEN, IT GAVE ME A LIST OF CACHE ERRORS.....AND WHEN I SWITCHED OFF THE PHONE AFTER THAT IT REFUSED TO POWER ON.....IT WAS NOT EVEN GOING INTO DOWNLOAD OR RECOVERY MODE.....BATTERY HAD ENOUGH POWER....SO ITS NOT BATTERY FAULT......I SUPPOSE THAT SINCE THE PARTITIONS WERE FORMATTED THE PHONE BECAME COMPLETELY DEAD......CAN YOU TELL ME IF THERE IS ANY WAY WHERE I COULD GET THE COMPUTER TO RECOGNIZE MY PHONE USING A 'DEAD PHONE USB FLASH' OR SOMETHING.....AND THEN FLASH A BLANK BOOTLOADER AND THEN WRITE CWM?

I LIVE IN INDIA SIR.....+5.30 GMT.....I DO NOT KNOW ANYTHING ABOUT TEAMVIEWER.....IS IT AN ANDROID APP? CAN YOU EXPLAIN MORE IN DETAIL SIR?

PLEASE LET ME KNOW HOW TO GET THE COMPUTER TO RECOGNIZE THE PHONE AGAIN......
25th December 2015, 08:50 PM |#4  
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Well.. that sounds not that good...

Teamviewer (www.teamviewer.com) is an easy to use and free remote control software for your PC (it runs on both Linux and Windows). We could do a remote control session if you like. I can try to help but cannot promise anything.
I live in Germany: GMT +1. Send me a PM if you want to give that a try. Next Monday. Tuesday or Thursday would be possible on my site. At least for getting a short overview.



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2nd January 2016, 04:13 PM |#5  
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Thank you sir,
Thanks for the reply Sir.....I believe using teamviewer requires a internet connection with good amount of data.....I have an extremely slow 2G internet connection here in India.....I searched google to find some solution for the bricked I927......and came across many posts where people have used the 'unbrick.img' which was specifically made for their samsung phone models on their SD cards to resurrect their dead phones.....The method involves creating a 'unbrick.img' with emmc files extracted from another working I927 and then writing the image on an external SD card with some linux commands or win2image software and then inserting the SD card into the dead phone and switch it on by which it goes to download mode.....once in download mode I can flash CWM or TWRP and also flash stock firmware through odin and recover the phone.....Since your a developer who is well versed in things pertaining to this, can you make a unbrick.img file for the I927 and upload it here Sir? It will be very helpful for others also on the samsung glide subforum, as there is no proper 'hard unbrick' thread for the glide on xda......Ill be very grateful and thankful to you for all your help Sir.....
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4th January 2016, 10:55 AM |#6  
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Quote:
Originally Posted by alvcross

Thanks for the reply Sir.....I believe using teamviewer requires a internet connection with good amount of data.....I have an extremely slow 2G internet connection here in India.....I searched google to find some solution for the bricked I927......and came across many posts where people have used the 'unbrick.img' which was specifically made for their samsung phone models on their SD cards to resurrect their dead phones.....The method involves creating a 'unbrick.img' with emmc files extracted from another working I927 and then writing the image on an external SD card with some linux commands or win2image software and then inserting the SD card into the dead phone and switch it on by which it goes to download mode.....once in download mode I can flash CWM or TWRP and also flash stock firmware through odin and recover the phone.....Since your a developer who is well versed in things pertaining to this, can you make a unbrick.img file for the I927 and upload it here Sir? It will be very helpful for others also on the samsung glide subforum, as there is no proper 'hard unbrick' thread for the glide on xda......Ill be very grateful and thankful to you for all your help Sir.....

Ok I have made one. It want to say it was VERY hard to find the correct instructions to do so and therefore I'm absolutely not sure if that will work for you!
Test it if you like but again: I have no idea if that would damage anything more than it is now!

See --> http://forum.xda-developers.com/capt...-i927-t3285505
If it worked for you (would be like a miracle) then please report back!
If it does NOT work for you please report back, too!

thanks

xdajog


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UPDATE:

Besides the link I posted --> Could you please also try the following:

1) Power on your device and directly after that:
2) Press and hold down Vol Up + Vol Down (both the same time)
3) You should see a warning message like the attached one which is the APX mode
4) you need to release the vol buttons immediately after you see the APX mode otherwise it will continue to the non working download mode.
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6th January 2016, 09:45 AM |#7  
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Does teamviewer require internet connection with a lot of data?
Thanks for the reply Sir.....I believe using teamviewer requires a internet connection with good amount of data.....I have an extremely slow 2G internet connection here in India.....I searched google to find some solution for the bricked I927......and came across many posts where people have used the 'unbrick.img' which was specifically made for their samsung phone models on their SD cards to resurrect their dead phones.....The method involves creating a 'unbrick.img' with emmc files extracted from another working I927 and then writing the image on an external SD card with some linux commands or win2image software and then inserting the SD card into the dead phone and switch it on by which it goes to download mode.....once in download mode I can flash CWM or TWRP and also flash stock firmware through odin and recover the phone.....Since your a developer who is well versed in things pertaining to this, can you make a unbrick.img file for the I927 and upload it here Sir? It will be very helpful for others also on the samsung glide subforum, as there is no proper 'hard unbrick' thread for the glide on xda......Ill be very grateful and thankful to you for all your help Sir.....
6th January 2016, 03:12 PM |#8  
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Quote:
Originally Posted by alvcross

Thanks for the reply Sir.....I believe using teamviewer requires a internet connection with good amount of data.....I have an extremely slow 2G internet connection here in India.....I searched google to find some solution for the bricked I927......and came across many posts where people have used the 'unbrick.img' which was specifically made for their samsung phone models on their SD cards to resurrect their dead phones.....The method involves creating a 'unbrick.img' with emmc files extracted from another working I927 and then writing the image on an external SD card with some linux commands or win2image software and then inserting the SD card into the dead phone and switch it on by which it goes to download mode.....once in download mode I can flash CWM or TWRP and also flash stock firmware through odin and recover the phone.....Since your a developer who is well versed in things pertaining to this, can you make a unbrick.img file for the I927 and upload it here Sir? It will be very helpful for others also on the samsung glide subforum, as there is no proper 'hard unbrick' thread for the glide on xda......Ill be very grateful and thankful to you for all your help Sir.....

Uhm do you have read my above post??


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6th January 2016, 07:02 PM |#9  
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1927 wouldn't boot.....Help.
Ohhhh Thank you.....thank you.....thank you for your kind reply Sir.....how good of you to take all your precious time to help me.....I greatly appreciate all your hard work Sir.....wonderful...*.I wanted to download your img file to try it out and when I read the reply of brother Bubor, that the I927 woudnt boot from the SD card when the bootloader is bricked, I was very disappointed. Like I said before, I have a very very slow internet connection with very less data left....and according to brother bubor's reply I doubt this will work....It looked like he was sure that it wont work....I tried to get into APX mode as the link that brother bubor posted had mentioned, but no luck, as the phone is not going into APX mode.....I remember that when I was trying to get to the APX mode the first time, the computer flashed a notification that the APX driver was not successfully installed.....but after that I tried the method more than a dozen times, but the computer was not recognizing the phone to go into APX mode.....Does the phone go into APX mode when the full internal phone system is formatted? I tried your second method on trying to get to APX mode, but nothing happens.....the computer is not recognizing the phone.....The battery had about 30% power in it when the phone got bricked 2 weeks ago.....Dont know if the battery drained all these days of not using the phone.....And even if I get to the APX mode, I have no idea how to proceed from there to repartition the internal phone system and get back download mode.....In the link that brother bubor posted the person who made the thread has made some files to be used when one gets into APX mode.....The PIT and emmc files which are necessary for repartitioning the system and getting the bootloader work are found in that zip file.....But that zip file is for the I9103 Galaxy R.....there isnt something like that available for the I927 yet.....And is brother bubor sure that the unbrick.img file wont work on the I927?
6th January 2016, 08:46 PM |#10  
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Give it a try with my unbrick image.
we all don't know.

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12th January 2016, 04:33 PM |#11  
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Quote:
Originally Posted by xdajog

Give it a try with my unbrick image.
we all don't know.

.

Hi @alvcross: any update on this?
have you tried the SD card unbrick?
You said you cannot open the APX mode but what happens when you press the buttons for accessing the APX mode?
Try it even if you see a blank screen and then connect your Cappy with USB to your computer --> you should get a message about a missing driver or similar.
If that works I tell you how to proceed.
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