Database Info

[Q] File System question

I performed a Factory Reset / Wipe and was under the impression this cleared everything off the Xoom that I had added. Upon looking at the /mnt/sdcard folder I see folders of Apps that I had previously installed.
Question
Can the /mnt/sdcard be formatted ? If so how ?
Not super familiar with the whole file system setup so If this is a noob/stupid question could you please explain things for me.

mgabriel2 said:
Can the /mnt/sdcard be formatted ? If so how ?
Click to expand...
Click to collapse
There are two ways that I know of that I personally have done just in the last week or so. First you can unmount the SD card from the Xoom and place it in an Android Cell Phone, and go to settings/storage and from there unmount the card and click reformat SD card. Or you can hook the Xoom up via USB and clear it from within the PC/mac. Hope this helped.
Sent from my Xoom using xda premium

Nope that would be for the micro USB card this is the /mint/sdcard which is part of the internal memory
Sent from my Xoom using xda premium

mgabriel2 said:
Nope that would be for the micro USB card this is the /mint/sdcard which is part of the internal memory
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
Fastboot -w wipes all user data including /mnt/sdcard I lost some pictures of my dog because of it
Sent from my MB860 using xda premium

The simplest way I know of is thru the Backup/Restore options in CWM, just doing the wipes won't do it. I use the Team Rogue version of CWM tho, i don't remember off hand if it can be done in the other recovery's (i.e. Rom Managers version or the one from solarnz that is most popular).
I just, personally, like the way the menus are laid out with Team Rogue's version and not having like a dozen No's with one Yes when confirming an action, nothing against the others.

Thanks guys I will try the Fastboot -w when at home and able to use it and Team Rogue's Recovery when at work.

Its been awhile but what is the option in Team Rogue recovery I dont see one to wipe the Internal data

mgabriel2 said:
Its been awhile but what is the option in Team Rogue recovery I dont see one to wipe the Internal data
Click to expand...
Click to collapse
I believe that its or in the Advance or Mount Storage options....

Sdcard doesnt connect in gb and ics

hi everyone i was using kryllos rom with partitioned manner and then flashed MIui rom (ICS), i connected to pc
- sometimes it will not be detected
- sometimes it will be detected but i can only see the drive without storage memory and my tab keepson loading
then i flashed GB rom and i get the same probolem after that i tried PURUMOD(froyo) and the sdcard gets connected fine ,my sd card works perfectly but it does not work in GB and ICS
I tried formating sdcard also i getthe same result
Now i am in miui only
Please can someone help me

I think there is some problem with sdext or something I NEED HELP NOOB HERE

sudersanmurthy said:
I think there is some problem with sdext or something I NEED HELP NOOB HERE
Click to expand...
Click to collapse
Have you tried formatting it in cwm
Sent from my GT-I5800 using XDA

hulkbuster92 said:
Have you tried formatting it in cwm
Sent from my GT-I5800 using XDA
Click to expand...
Click to collapse
Yes i tried formating through CWM,NORMAL METHOD and WINDOWS
if i use gb or ics my phone does not connect to computer both in normal mode as well as CWM
BUT if i use FROYO it simply works perfectly (BUT it used to work on ics and gb before)

sudersanmurthy said:
Yes i tried formating through CWM,NORMAL METHOD and WINDOWS
if i use gb or ics my phone does not connect to computer both in normal mode as well as CWM
BUT if i use FROYO it simply works perfectly (BUT it used to work on ics and gb before)
Click to expand...
Click to collapse
hmmmm...this one os odd....:banghead:
one thingy crosses my mind though....did u try to flash g3mod 2.5 oc/nonoc.....tarball with odin and see if sdcard gets mounted?...try...and...post results please

rkoby13 said:
hmmmm...this one os odd....:banghead:
one thingy crosses my mind though....did u try to flash g3mod 2.5 oc/nonoc.....tarball with odin and see if sdcard gets mounted?...try...and...post results please
Click to expand...
Click to collapse
Thanks for your reply , will report you after doing it
Sent from my GT-I5800 using XDA

hi tried flashing 2.5 but still i am facing the same issue this is frustrating and i dont understand why this is happening

sudersanmurthy said:
hi tried flashing 2.5 but still i am facing the same issue this is frustrating and i dont understand why this is happening
Click to expand...
Click to collapse
well...i don't know :what:'s up either....but i extracted init.d folder and packed a cwm flashable zip...it contains all scripts from my rom...untouched....flash it..(if u want)..see attachement

lolz...i just remembered...can u mount ur sdcard from cwm?
Mounts & storage-->mount sdcard...

rkoby13 said:
lolz...i just remembered...can u mount ur sdcard from cwm?
Mounts & storage-->mount sdcard...
Click to expand...
Click to collapse
No i already mentioned in my post the it doesn't work both on CWM and NORMAL
Sent from my GT-I5800 using XDA

rkoby13 said:
well...i don't know :what:'s up either....but i extracted init.d folder and packed a cwm flashable zip...it contains all scripts from my rom...untouched....flash it..(if u want)..see attachement
Click to expand...
Click to collapse
I already mentioned that i am Noob so please consider (NOOB ALERT ) ,i am using miui rom so what your saying is just flash what you sent me without Changing anything :-D sorry for being noob
Sent from my GT-I5800 using XDA

sudersanmurthy said:
I already mentioned that i am Noob so please consider (NOOB ALERT ) ,i am using miui rom so what your saying is just flash what you sent me without Changing anything :-D sorry for being noob
Sent from my GT-I5800 using XDA
Click to expand...
Click to collapse
huh....nooooo....don't flash this on miui....but you can flash ONLY ON cm7.2 alpha 8.2 rc3.....note: don't flash zip on any other build than cm7.2 rc3....

rkoby13 said:
huh....nooooo....don't flash this on miui....but you can flash ONLY ON cm7.2 alpha 8.2 rc3.....note: don't flash zip on any other build than cm7.2 rc3....
Click to expand...
Click to collapse
Thanks for your reply i will do that and report you
Sent from my GT-I5800 using XDA

ok in order to flash cm7.2 i need flash kryllos(FROYO) beacuse only in that i can mount my sd card to copy the updates of cm 7.2..so i flashed kryllos and did a wipe data/ Factory Reset
Formatting DATA...
Formatting CACHE...
Formatting SDEXT...
No app2sd partition found. Skipping format of /sd-ext.
Formating sdcard:/.android_secure...
Data wipe complete
I flashed cm7.2 and did a Data Wipe/Factory Reset
Formatting /data...
Formatting /cache...
Formatting /sd-ext...
E:format_volume: make_extf4fs failed on /dev/block/mmcblkop2
Formating sdcard:/.android_secure...
Data wipe complete
PIC 1 resembles when usb is just connected without mounting (din happen until i did what you told )
PIC 2 resembles when i turn on (it looks like its working but it does not)
PIC 3 resembles wheni refresh my computer or try to open removable disk and my tab keeps on loading as in the picture
I am back to miui now , but if there is anything you want me to do to solve this i will be very thankfull to do that , since i am noob on these this i feel like i screwed up something
I flashed MIUI ICS and did a Data Wipe/Factory Reset
Formatting /data...
Formatting /cache...
Formatting /sd-ext...
Formatting /sdcard/.android_secure...
Data wipe complete
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
it goes on

Do you have he Micro SD Adapter that came with the phone when you bought it?
Try connecting the SD card through it and see if it works......

harry1995 said:
Do you have he Micro SD Adapter that came with the phone when you bought it?
Try connecting the SD card through it and see if it works......
Click to expand...
Click to collapse
No i dont think i can connect , i dont have a laptop

Hmm..do one thing..format sdcard..
flash gb once again..wipe cache,dalvik and data..and.after installing do a factory reset..and see..you can also try reinstalling the USB drivers..I know it works for you in froyo..but it may work sometimes...
Check this link for drivers
forum.xda-developers.com/showthread.php?t=728929

prabhuthelegend said:
Hmm..do one thing..format sdcard..
flash gb once again..wipe cache,dalvik and data..and.after installing do a factory reset..and see..you can also try reinstalling the USB drivers..I know it works for you in froyo..but it may work sometimes...
Check this link for drivers
forum.xda-developers.com/showthread.php?t=728929
Click to expand...
Click to collapse
I did what you mentioned but still facing the same issue
Due to this reason i am constantly flasging rom kernel and formatting sdcard again and again

sudersanmurthy said:
I did what you mentioned but still facing the same issue
Due to this reason i am constantly flasging rom kernel and formatting sdcard again and again
Click to expand...
Click to collapse
Is it getting detected in your PC (Using a card reader or adapter) Is it getting detected in a Digital camera? Just go ahead and Check to be absolutely sure. If it's not, then, my thoughts are, the card is corrupted. But as a last effort, delete any partitions that you made (use minitool partition wizard) and format the entire card (use minitool or use a digital camera) or do a low level format with any low level formatting tool, if required.

Shree_Jamdar said:
Is it getting detected in your PC (Using a card reader or adapter) Is it getting detected in a Digital camera? Just go ahead and Check to be absolutely sure. If it's not, then, my thoughts are, the card is corrupted. But as a last effort, delete any partitions that you made (use minitool partition wizard) and format the entire card (use minitool or use a digital camera) or do a low level format with any low level formatting tool, if required.
Click to expand...
Click to collapse
I already did it using EASE US partition manager , and it gets detected the problemo starts when i open the drive ,if you havent read my post ,y sd card works 100% if i use any FROYO rom it only sucks on GB and ICS (but it used to work before)....and i dont have a card reader if possible i will test it ...since it is working in froyo i cannot come to a conclusion
AND my sd card work 100% when its inside my phone(FROYO,GB,ICS)

[Q] apps on my sl force closes and data does not get formatted please help

my galaxy sl does not get formatted and system apps and downloaded apps force closes i have tried wiping data,cache and dalvik cache but the problem is not solved.i have even tried flashing xxkpe and then ddkp3 but its of no use.the problem is not getting solved.i have even tried to flash cm9 and remi ics trough cwm but its gives me the message Encryption unsucessful.please help somebody.i have searched on xda but didnot find any such problem so started a new thread.please help

what do you mean not formatted? Was it the sd card? If flashing a stock rom does not solv the problem "i think" its your sd card which causes the problem. HAve you tried it on different sd card?

by saying not formatted i mean that all the apps which were available before flashing and wiping data remains and i have i tried flashing it without a sd card.so i dont think it is sd card which is causing the problem.can u tell me when do i get a message "Encryption unsucessful" when flashing remics or cm9.

try the below may help you. but you will lost all your data
flash Universal CF-ROOT by amit
reboot into revovery
mount and storage - mount all the partition.
format /data
foramt /dbdata
format /cache
format /system
do not reboot
in advance - reboot download mode
than flash pit file
than flash XXKPE by odin
manual reboot one time
than factory reset
see is you problem solved.

No good bro, the problem is still exist. i faced it too
After flashing stock ROM it says "failed to mount /data (invalid arguments)" and bootloop

@chongns i did all the steps u told properly but still the problem exists.the apps force closes and the data is still not wiped.please provide another solution.

Hi bors if this way not able to slove ur guys problem, than i think ur problem is come from the hardware. Either go to service center or try to make partition in the ext sdcard. Check the thread regarding this problem in here. Follow them.
Sent from my GT-I9003 using Tapatalk 2

gabuz said:
No good bro, the problem is still exist. i faced it too
After flashing stock ROM it says "failed to mount /data (invalid arguments)" and bootloop
Click to expand...
Click to collapse
@Gabuz. Didnt know if this help you. This is a guess.
When flash in odin, check on the option "update bootloader"
There are risky. Cause i did it once when i flash from froyo th GB. but my phone still alive.
Sent from my GT-I9003 using Tapatalk 2

@chongns how to make partition in ext sd card and will it solve my problem.

i forgot to mention one thing that before this problem occured my sl was on rooted ddkp3 and i had swapped internal memory with external memory card.but the problem occured when in clockworkmod recovery i touched the "fix permissions" option.and the apps which are not getting formatted are on the phone memory.please help i am getting force close on apps freqently and the data is not wiped.please help

See here
http://forum.xda-developers.com/showthread.php?p=27973751
Sent from my GT-I8150 using XDA

@chongns u suggested to format data,cache,dalvik cache and system but there was one more option in mounts and storage (i.e.mount emmc and format emmc)should i have formatted that emmc also.and what was imp of the post u sugested before.

i also formated emmc but its of no use the apps are still force closing and data is not getting wiped.

sometimes after flashing and using the mobile for a while sometimes it goes into kernel upload panic mode.what is kernel panic upload mode and what causes it and how can i not get such a message.please help

i also tried to install miui v4 but it gives the same problem as as remics and cm9 it shows "Encryption unsuccessful"

I would said u having the partition corrupted. So it is wise send it service center than you corrupt it more further
Sent from my GT-I9003 using Tapatalk 2

@chongs can u tell me how much money will be required for that.my phone is out of warranty.

i sorry i dun know how much will cost.
recently i following this thread
http://forum.xda-developers.com/showthread.php?t=1736118
it have similar problem with you, you can have a look

after flashing value pack update for india it shows
E:failed to mount /data(No such file or directory) what does it mean and how to make it usable it is not working.please help

Are u facing a random reboot then you get to 'encryption unsuccessful' screen? Then a reboot would get you back to normal state? I solved this by flashing the value pack via mobile odin pro with ever root. I flashed the latest one by prezket
Sent from my GT-I9003 using xda app-developers app

[Q] Ooops - Tab's funked. Help!

P6800 running Zeta
I was browsing facebook the other night when... shaboom - everything froze. No biggie I thought, I'll just do a little reset (I was getting a few FCs here and there anyway lately) and I'll be good to go...
NOPE. It started bootlooping at the initial Samsung Galaxy Tab 7.7 screen. I'm able to enter CWM recovery and even wipe the cache and flash ZIP files, but when I try to wipe data/factory reset, wipe the Dalvik cache or restore a Nandroid backupI get a System Error. It doesn't look good.
Is there a way to fix my seemingly funked /system without losing all my internal SD card data (where my Titanium backups reside) or to recover it before a full Odin flash?

Just tried again - it reboots and goes into a loop when I try to wipe data and dalvik, and when I try to restore a previous backup it gives me "Error while restoring /system!"
Any help greatly appreciated before it becomes a $600 door stop

Do you dare to wipe the system folder and follow by flashing another ROM?
Sent from my GT-P6800 using xda app-developers app

iena said:
Just tried again - it reboots and goes into a loop when I try to wipe data and dalvik, and when I try to restore a previous backup it gives me "Error while restoring /system!"
Any help greatly appreciated before it becomes a $600 door stop
Click to expand...
Click to collapse
ok... try go long way... download old HC stock rom and install that... then try go to stock recovery in hc and wipe your data

Thread moved to Q & A section, post in the relevant section next time.

edan1979 said:
ok... try go long way... download old HC stock rom and install that... then try go to stock recovery in hc and wipe your data
Click to expand...
Click to collapse
Do you mean via Odin? Will I lose the data on my internal SD card by doing that? Is there any way of mounting the device in its current state as external storage on my PC to copy all data before a wipe?
ZhenMing: I'm not sure what you mean, but as I wrote above I am not able to wipe the system folder.

yes you will loose your data... i can give you another advice... but do this one carefully... the reason why your device cant wipe any /system or /data is because the corrupted partition... you need to check it... follow the guide in this thread...
USE ONLY PART 3... follow the guide start from this para to check your device...
Code:
Now we are going to use e2fsck to check our new partitions for errors, but not only, it also fixes some erros and it will even for example create lost & found in /data
So let's go, we'll begin with /system. If you're still in the (parted) shell, use ctrl+c and type "adb shell", then issue the following :
http://forum.xda-developers.com/showthread.php?t=1862294

iena said:
Do you mean via Odin? Will I lose the data on my internal SD card by doing that? Is there any way of mounting the device in its current state as external storage on my PC to copy all data before a wipe?
ZhenMing: I'm not sure what you mean, but as I wrote above I am not able to wipe the system folder.
Click to expand...
Click to collapse
Since you can go into cwm, you can mount your storage and then connect to PC to copy all you want.

edan1979 said:
yes you will loose your data... i can give you another advice... but do this one carefully... the reason why your device cant wipe any /system or /data is because the corrupted partition... you need to check it... follow the guide in this thread...
USE ONLY PART 3... follow the guide start from this para to check your device...
Code:
Now we are going to use e2fsck to check our new partitions for errors, but not only, it also fixes some erros and it will even for example create lost & found in /data
So let's go, we'll begin with /system. If you're still in the (parted) shell, use ctrl+c and type "adb shell", then issue the following :
http://forum.xda-developers.com/showthread.php?t=1862294
Click to expand...
Click to collapse
But won't it downsize the int sd size, if OP tab still under warranty, better to get it fix by samsung for free and not lost any space.

Just reading the 1st post of the ZETA rom thread.
He says he is using stock Kernel.
He says every 5 lines, that you should full wipe...
without giving any sort of warning that it will eventually brick your device.

friedje said:
Since you can go into cwm, you can mount your storage and then connect to PC to copy all you want.
Click to expand...
Click to collapse
Tried that one, but it won't mount unfortunately. The external will no problem, but when I try with the internal it just... well it does nothing. It's a bummer cause all my most recent backups are on the internal. Any other way of retrieving my data short of extracting the chip?
Giving it back to Samsung sounds like the best option, but I'm worried cause it has a custom ROM and it's rooted. Anyone has experience doing that?
Also I thought full wipes were good, but you're saying they eventually brick the device? How come? I thought having a custom recovery meant it would be virtually impossible to brick my device... and the weird thing is that it happened during normal usage, not while flashing.
Anyway, my priority is obviously to get my tab working again, but retrieving my internal data is second highest. Isn't there a flashable ZIP that would copy the contents of the internal SD into an external SD card? Surely this has happened to someone before me?
Thanks for all the answers, really appreciated!

bruce16878 said:
But won't it downsize the int sd size, if OP tab still under warranty, better to get it fix by samsung for free and not lost any space.
Click to expand...
Click to collapse
nope it wont... the 3rd stage on that thread command for just check and fix the corrupted partition... its like when we force boot windows... it will run on a little diagnostic software to check the drive... same concept.

Oh I see, Thanks for the explanation. Learn something new today.
Sent from my LT18i using xda app-developers app

friedje said:
Since you can go into cwm, you can mount your storage and then connect to PC to copy all you want.
Click to expand...
Click to collapse
edan1979 said:
nope it wont... the 3rd stage on that thread command for just check and fix the corrupted partition... its like when we force boot windows... it will run on a little diagnostic software to check the drive... same concept.
Click to expand...
Click to collapse
Gotcha! Will try that one and post result - thanks!

how did your partition check go?
i'm annoyed that some partitions can be corrupted randomly even doing some mundane stuffs
even on stock ICS fw, i encountered DATA corruption by just deleting a contact
i guess you have softbrick..
here is what i did:
-flash stock Honeycomb firmware using Odin
-forced tablet into stock recovery mode
-wipe Cache/Data/Factory Reset
- reboot
when your tab is working again you could backup files from your internal EMMC and you could flash ROMS from there

JAYZE said:
how did your partition check go?
i'm annoyed that some partitions can be corrupted randomly even doing some mundane stuffs
even on stock ICS fw, i encountered DATA corruption by just deleting a contact
i guess you have softbrick..
here is what i did:
-flash stock Honeycomb firmware using Odin
-forced tablet into stock recovery mode
-wipe Cache/Data/Factory Reset
- reboot
when your tab is working again you could backup files from your internal EMMC and you could flash ROMS from there
Click to expand...
Click to collapse
Thanks for that. I haven't tried anything yet as I'm away till Weds, but I will then and let you know. So you're saying by flashing stock HC via Odin and wiping/resetting everything through stock recovery I won't lose my internal storage data?

that's what i experienced..but i could not guarantee that it will be the same for your device
i noticed that because old folder are not deleted when i rebooted, but i haven't checked if the system folders are cleared
to have a clean reflash i also format/sdcard on recovery..but don't do this on stocl ICS recovery since you might risk increasing the damage
try to format via odin the Honeycomb fw first [don't put PIT file neither enable Repartion, just normal flash]
then force it to enter recovery mode when it bootloops after reset
you might fix your device this way if it has softbrick
just resort to using PIT/repartition as your last option

Again I would not recommend repartition when tab still under warranty. Repartition the last resort only if the tab is without warranty after failing all other alternatives.

JAYZE said:
how did your partition check go?
i'm annoyed that some partitions can be corrupted randomly even doing some mundane stuffs
even on stock ICS fw, i encountered DATA corruption by just deleting a contact
i guess you have softbrick..
here is what i did:
-flash stock Honeycomb firmware using Odin
-forced tablet into stock recovery mode
-wipe Cache/Data/Factory Reset
- reboot
when your tab is working again you could backup files from your internal EMMC and you could flash ROMS from there
Click to expand...
Click to collapse
+1
After a full hangup, your stock hc is your first step out of the dark!
Best of luck

al128 said:
+1
After a full hangup, your stock hc is your first step out of the dark!
Best of luck
Click to expand...
Click to collapse
Ok I'm gonna do it. There are dozens of versions of HC for the 6800 though, can I just pick any or do I need to find out what it was running out of the box? Mine came from Singapore.

[Q] about what i am thinking of doing

i am thinking of doing a clean install on my phone
what i was planning to do is format everything sd/external sd
format system on CWM
i just dont want any traces from anything or any folder left behind on my phone
what is the best way to do this?
i dont wanna end up bricking it :crying:
any help is appreciated

Heimdall or Odin install stock UCLB3 GB, or stock froyo..
Then format sd cards from Settings, then factory reset from Settings.
Optional... Connect phone to PC,mount drives and use a data wipe utility on both sd cards...
Sent from my SAMSUNG-SGH-I997 using xda premium

Zen Arcade said:
Heimdall or Odin install stock UCLB3 GB, or stock froyo..
Then format sd cards from Settings, then factory reset from Settings.
Optional... Connect phone to PC,mount drives and use a data wipe utility on both sd cards...
Sent from my SAMSUNG-SGH-I997 using xda premium
Click to expand...
Click to collapse
I was thinking of flashing the same rom im using now after formatting everything?or i should go to stock before formatting?
Is it advisable to format sdcard and external sd from cwm??

wawaweewa said:
I was thinking of flashing the same rom im using now after formatting everything?or i should go to stock before formatting?
Is it advisable to format sdcard and external sd from cwm??
Click to expand...
Click to collapse
My personal choice is to format both SD cards on the computer.Takes a couple of minutes,but if using Windows uncheck the quick format option,after that in recovery go to mounts and storage and format cache,data,system and boot

Go here and get qksters clean wipes. I flash this before every flash and rarely have bad flashes or bugs related to dirty flashes
http://forum.xda-developers.com/showthread.php?p=23965646
U can format internal and external sd from pc then flash clean wipes then flash ur rom or odin back to stock then flash ur rom
Sent From My Aeonized SAMSUNG-SGH-I997

wawaweewa said:
I was thinking of flashing the same rom im using now after formatting everything?or i should go to stock before formatting?
Is it advisable to format sdcard and external sd from cwm??
Click to expand...
Click to collapse
What ridingmac said
Or, from recovery you can format system, wipe caches, and clear data/factory reset. Then flash the ROM.
Either way, DO NOT format or erase your sdcards. Make sure your ROM install zip is copied to your internal sdcard before the steps above.
Sent from my SAMSUNG-SGH-I997 using xda premium

elbscorp said:
My personal choice is to format both SD cards on the computer.Takes a couple of minutes,but if using Windows uncheck the quick format option,after that in recovery go to mounts and storage and format cache,data,system and boot
Click to expand...
Click to collapse
thanks that is what i am going to do because i copied the files of both sd in my pc
Ridingmac said:
Go here and get qksters clean wipes. I flash this before every flash and rarely have bad flashes or bugs related to dirty flashes
http://forum.xda-developers.com/showthread.php?p=23965646
U can format internal and external sd from pc then flash clean wipes then flash ur rom or odin back to stock then flash ur rom
Sent From My Aeonized SAMSUNG-SGH-I997
Click to expand...
Click to collapse
will this erase the folders in sd card (not external)
because i am seeing a lot of folders/files ( that are not usually there, from previous flash i think
Zen Arcade said:
What ridingmac said
Or, from recovery you can format system, wipe caches, and clear data/factory reset. Then flash the ROM.
Either way, DO NOT format or erase your sdcards. Make sure your ROM install zip is copied to your internal sdcard before the steps above.
Sent from my SAMSUNG-SGH-I997 using xda premium
Click to expand...
Click to collapse
thanks for the replies well appreciated ill probably do this tomorrow

The clean wipes wont touch your sd cards internal or external. It will only delete ur current rom and such so make sure you have a cwm flashable rom in ur internal or external sd card before flashing clean wipes or that u can odin back to stock. I would reccoment a nandroid backup before doing anything.....like always
Sent From My Aeonized SAMSUNG-SGH-I997