[Samsung Galaxy W I8150] jbs.sc:
Hello.

I am writing here as i am hoping that one of You experienced android users will be able to help me to fix my phone (i8150).

I am rather new to android and so far i have been following instructions very carefully and it wasn't the very first time i was flashing rom.

I did rooted my phone, flashed CWM Recovery via adb, used titanium backup, root explorer etc. Also its been long time since i started using Kezra V4 rom with ICS theme, unmodified vold.fstb. I never ever had any issues with the phone or rom.

To make things as clear as possible i will start with the brief info on what i did to my phone last week.

Last weekend (a week ago) i did a fresh install of Kezra v4 rom with ics theme, original vold.fstab, root explorer and launcher pro (placed in system/app).

Flashing process went fine, no errors in CWM (and yes i did wipe dalvik, cache, formatted system). Several apps were restored with titanium. Phone and rom were working as intended, no signs of slowdowns, errors etc.

Couple days latter i decided to add 1 ringtone and 1 notification sound. Both are ogg files and were placed to system/media/audio/ringtones and notifications. I did remember to mount as r/w change permissions and remount it as r/o. I rebooted phone once but i didn't see new ringtone or notification sound on the list so i rebooted it again. After second reboot the phone booted without any problems but once the system was loaded touch screen stopped to respond and the phone froze. I rebooted it again and this time everything went back to normal.

Yesterday i tried to copy new Kezra rom to my INTERNAL sdcar in order to flash it with CWM. But instead of that i stumbled upon a problem that is beyond my knowledge and comprehension. I DID NOT FLASH ANYTHING AT THIS POINT AS I LOST ACCESS TO CWM

- CWM Recovery disappeared - when i am trying to boot to CWM my phone turns off. There is very very very quick flash of the screen showing recovery but that is it.

- when copying 270mb rom to INTERNAL sdcard it stops at 10% with message that the file can not be read

- when copying smaller files, files are being copied from pc to phone but once the phone (usb storage) is disconnected from pc the files that were copied to internal sdcard are not there as if they were never copied

- i can copy files from external sdcard to internal sdcard with rootexplorer but after rebooting phone the files are gone from internal sdcard

- i can install any app from market or from sdcard but after rebooting, the installed app is gone, it doesnt exist in data/app, the cache files on internal sdcard are gone as well and the installed app is not on the list

- i can take pictures and if they are saved to internal sdcard they vanish after rebooting phone

- if i change any settings of the phone (volume, brightness, wifi settings, any settings) after rebooting phone the settings that i changed are reverted to the state from before rebooting

- i did try to delete those 2 files - ringtone and notification sound from the system/media/audio/ringtones and notification but after rebooting the phone they are still there not deleted (i do remember abot mounting r/w r/o and permissions)

- after formatting internal usb storage (settings/storage/format usb) and rebooting phone all the files are there - as if it was not formatted at all

- after formatting internal usb storage from pc and rebooting phone all the files are there - as if it was not formatted at all

- after "factory reset data" and rebooting phone nothing has changed as if it has not been reseted

- i tried to update superuser binary (my binary is 3.0.3) via wifi - there is new ver 3.0.3.2(ok), update(ok), downloading(ok),

gaining root(ok),remounting /system as rw (ok), md5sum(ok), changing file mode to 06755(ok), moving su (ok), checking md5sum(ok),

remounting /system as ro(ok), installed ver 3.0.3, update failed - superuser message -> "this updater cannot update the su binary on phones that have some kind of write protection on the system partition like S-ON"

Now i guess you are wondering if the phone works. Yes it does.

- it is eu phone bought in England and used in England

- the phone is not assigned to a network carrier, it is not locked in any way - network lock (off), network subset lock (off), SP lock (off), CP lock (off)

- I can make/receive calls and messages

- wifi, g3, tethering, bluetooth, gps, camera etc. are working fine

- all the applications including new apps are working fine as long as i don't reboot phone.

- I don't experience any slowdowns, crashes or freezes

- I have access to system files via root explorer, the phone is rooted

- i don't get any messages that file system is write protected

- rumdump works

- download mode works

Here is what i tried so far:

- flash CWM Recovery via adb but after rebooting i still have no access to recovery (no errors in adb - process completed)

- flash original stock recovery via adb but after rebooting i still have no access to recovery (no errors in adb - process completed)

- flash CWM Recovery via ODIN but after reboot i can not boot to CWM

- flash stock rom I8150XXKK1 via ODIN - no changes to rom. Phone is loadin the old rom

ODIN Explanation:

In both cases of flashin CWM and stock rom i followed the procedure step by step with and without automatic reboot. ODIN says that flashing is done and PASS. During automatic reboot phone doesnt reboot it only turns off. After manual reboot phone is loading old rom (Kezra V4 installed a week ago) and there is no sign of CWM.

So now i am wondering:

- is it software or hardware issue

- how can i identify and isolate the problem

- how to make the phone to save the changes after reboot

- how to get a working CWM Recovery so i can flash the phone

- How to make ODIN to flash the phone

What do You make out this?