[Q] How to fully wipe system partition to install new rom? - Galaxy S III Q&A, Help & Troubleshooting

i want to clean my s3 by wiping everthing including internel sd card and system partition.how to do that?

AminemTV said:
i want to clean my s3 by wiping everthing including internel sd card and system partition.how to do that?
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By reading the INDEX and finding the relevant thread .
jje

AminemTV said:
i want to clean my s3 by wiping everthing including internel sd card and system partition.how to do that?
Click to expand...
Click to collapse
If you are rooted and have CWM Recovery:
1. Boot into recovery
2. Mounts & storage
3. Format sdcard
_ full wipe does not format internal SD.
The phone uses a single partition for it's app/data storage and internal sdcard.
So all you can do is delete all the contents ("rm -rf /mnt/sdcard/*" in Terminal) but not format it.
Enter this code but ###WARNING### there will not be any other dialog or yes or no option, after you enter the last "#" it will start to factory reset. I tried it and it cleaned out my internal SD card.
*2767*3855# Full
factory reset (Don't dial
it does not ask you to
confirm unless you have
problem)
Read here http://forum.xda-developers.com/showthread.php?t=1827817

Or, go here Megawipe
Copy the required zip to your SDcard and reboot into CWM recovery. Install the zip and your sd card will be completely and utterly wiped.
WARNING ... make sure you have a flashable rom on your ext sd card before you do this because your sd card will NOT be accessible after you do this wipe!!
Remember the warning above!!
Homer

In ClockworkMod, - mounts and storage>> - format /system

Related

[Q] SD format question

Hi, i have a 8gb SDcard and since i'm gonna pass form CM7.1 to CM7.2 i wanted to ask you a few questions:
1) I have a 500mb sd ext partition, will a /format SDcard from CWM5 cancel the partition?
2) Since i'm using s2e, would you reccomend me to manually uninstall apps and s2e before wiping /data and formatting the SD card?
Thanks
Bafacchio said:
Hi, i have a 8gb SDcard and since i'm gonna pass form CM7.1 to CM7.2 i wanted to ask you a few questions:
1) I have a 500mb sd ext partition, will a /format SDcard from CWM5 cancel the partition?
2) Since i'm using s2e, would you reccomend me to manually uninstall apps and s2e before wiping /data and formatting the SD card?
Thanks
Click to expand...
Click to collapse
No, your sd-ext parition will not be removed by formatting sdcard.
2. No it is not recommended, just backup your apps using Titanium backup and later you can restore them.
You need to partition only once unless you remove it manually.
/format sdcard will remove all data in fat32 partition
/format sd-ext will remove all data in ext partition
no need to do format sdcard for upgrading from 7.1 to 7.2. just do factory reset, delete cache, and dalvick cache.
no need to manually uninstall S2E.
Thanks guys!
I am not interested in restoring apps, i think i will make a clean install after flashing the rom.
dianpadi said:
/format sdcard will remove all data in fat32 partition
/format sd-ext will remove all data in ext partition
no need to do format sdcard for upgrading from 7.1 to 7.2. just do factory reset, delete cache, and dalvick cache.
no need to manually uninstall S2E.
Click to expand...
Click to collapse
So if i do factory reset and delete cache and dalvik this will remove also the apps that were moved to my sdcard with s2e?
I just want to clar my sd from the apps, so that i can make a clean install after changing rom...and i'd like to do this in the easiest way ^^
Bafacchio said:
So if i do factory reset and delete cache and dalvik this will remove also the apps that were moved to my sdcard with s2e?
I just want to clar my sd from the apps, so that i can make a clean install after changing rom...and i'd like to do this in the easiest way ^^
Click to expand...
Click to collapse
AFAIK, S2E is handling the sd-ext. when do factory reset, delete cache, and dalvik, and then flash new rom, the sd-ext also being formated.
but some application folder (e.g yahoo, titanium) still exist in the sdcard.
if you want a clean install, you can format sdcard, but you must reload the flashable zip rom to the sd card again. Then do factory reset, delete cache, delete dalvik, and flash the new rom.
dianpadi said:
AFAIK, S2E is handling the sd-ext. when do factory reset, delete cache, and dalvik, and then flash new rom, the sd-ext also being formated.
but some application folder (e.g yahoo, titanium) still exist in the sdcard.
if you want a clean install, you can format sdcard, but you must reload the flashable zip rom to the sd card again. Then do factory reset, delete cache, delete dalvik, and flash the new rom.
Click to expand...
Click to collapse
Thanks again! Well maybe i could format the SD after flashing the rom, couldn't i?
yes you can.
My experience, when I accidentaly format my SD card, I still can turn my Android on.
start up will recreate .android_secure, Android, and LOST.DIR again.
Guys...SD card is not associated with a rom -_- Remove your sd card and the phone works fine,right? android secure and lost.dir are directories that the android os makes on mounting of sd card..Try formatting your sd from the pc and and then insert it in the phone,now take it..you didnt reboot but you will still see android secure and lost.dir...Android makes them in between the mounting afaik.Flashing is not related with formatting sd card except choosing the zip file ofc
Why the heck is it that after I format my SD card... My efs file is gone????
Sent from my GT-S5830 using xda premium
ace_viknesh said:
Why the heck is it that after I format my SD card... My efs file is gone????
Sent from my GT-S5830 using xda premium
Click to expand...
Click to collapse
I browse with root explorer, and can not find /efs folder...

full format reday for new rom etc.

Evening all ive been using my test phone to try the many various roms etc but its built up a fair bit of junk in it ( see the attached screenshot for a list of all the folders )
What im wanting to know is there a way to completely flatten the SD partion that will get rid of everything there so when the new rom goes on it will be a totally fresh install. I followed these instructions ..
1st You have to know how to ROOT your phone
2nd You have to know how to open your phone in “Recovery Mode”
3rd You have to have d/l and copy the ROM’s .zip file in your SD card
If you don't know how to do those GO : http://forum.xda-developers.com/forumdisplay.php?f=1055 AND READ....
4th From “Recovery Mode”
A) Choose to “Wipe Data-Factory reset”
B) Then “Wipe cache Partition”
C) Then to “Advanced” “Wipe Dalvic cache”
D) Then if you like from “Mounts - Storage” “Format /cache - /Data - /System”
E) After this back to main and “Install zip from sdcard”
but there were still remmanants of crap left behind. Could i just select everything and hit delete then power down and install as above or is there another way to do it?
thanks in advance
On recovery mode you can go to mounts and storage >> format =) there format sd card or mmc (I got CM9 installed probably other driver names on your device)
berq219 said:
On recovery mode you can go to mounts and storage >> format =) there format sd card or mmc (I got CM9 installed probably other driver names on your device)
Click to expand...
Click to collapse
Would that then format everything including the new rom zip file. If so How would I then get the zip file across so I could install it?
Format = wipe
Full wipe is format cache format system format data phone will now not boot no OS .
Flash stock rom via Odin
Flash CWM and Root via Odin .
>>>>>>>>>>>>>>>>>>>>>>>>>>>
If you also format SD card all data is wiped .
Copy custom rom zip to sd card .
A step further would be to use one of the kernel cleaning tools on XDA .
jje
Why all the instructions to flash ROMs writes that the new rom should be put on integrated Memory card, not the external SD card?
I tried to make a couple of flash ROMs from external SD card and everything went ok
torpce said:
Why all the instructions to flash ROMs writes that the new rom should be put on integrated Memory card, not the external SD card?
I tried to make a couple of flash ROMs from external SD card and everything went ok
Click to expand...
Click to collapse
Provided
One your CWM can access the external sd card not all versions can .
Two not all users have an external sd card .
Bit pointless in the above two cases for instructions to be wrong when putting the file on the internal sd card is never wrong .
jje
Yeah, I thought it was something else in the game, thanks ...

How to format internal memory?

Hello guy's I have a bit stupid question,but I can't find how to format internal SD Card. Usually its by memory options but on this galaxy s3 I just can't find this option.
The phone uses a single partition for it's app/data storage and internal sdcard.
So all you can do is delete all the contents ("rm -rf /mnt/sdcard/*" in Terminal) but not format it.
If you are rooted and have CWM Recovery:
1. Boot into recovery
2. Mounts & storage
3. Format sdcard
+ This formats internal sdcard and the data stored there will be wiped +
Sent from my GT-I9300T using xda premium
Normal factoryreset in settings will wipe it all
sewe said:
Normal factoryreset in settings will wipe it all
Click to expand...
Click to collapse
no factory reset not wipe it.
[email protected] said:
no factory reset not wipe it.
Click to expand...
Click to collapse
It did on mine, all files on the internal was deleted
Since the partition is different , data and the other files is in the same partitions
GT-I9000 CM9 Tapatalk 2
I can confirm that full wipe does not format internal SD.
I hade to rm -rf too
Yes my phone rooted and have CWM so I gonna try your method.
I just tried format from CWM but i get this:
Formatting /sdcard...
Error mounting /sdcard!
Skipping format...
Done.
Any help?
As said your internal SDcard does not have it's own partition.
Please refer to my first post.
so i just can connect phone to pc open that storage and delete it manually? That's right?
AngelSoul said:
so i just can connect phone to pc open that storage and delete it manually? That's right?
Click to expand...
Click to collapse
Yes
Sent from my GT-I9300T using xda premium
Factory reset
is it safe to delete everything in the Internal Memory ? like all the folders? will they restore themself? cause if we have to choose what to delete, could take some time to work out what everything is.. games/ wallpapers, all adding folders into my internal memory.
Enter this code but ###WARNING### there will not be any other dialog or yes or no option, after you enter the last "#" it will start to factory reset. I tried it and it cleaned out my internal SD card.
*2767*3855# Full
factory reset (Don't dial
it does not ask you to
confirm unless you have
problem)
sak500 said:
Enter this code but ###WARNING### there will not be any other dialog or yes or no option, after you enter the last "#" it will start to factory reset. I tried it and it cleaned out my internal SD card.
*2767*3855# Full
factory reset (Don't dial
it does not ask you to
confirm unless you have
problem)
Click to expand...
Click to collapse
This worked great on the Sprint Galaxy S3 as well.
So it work with rooted device am i right?
Please do take note, it will reformat BOTH your internal and external memory.
So when we r flashing rom before wipe data n cache we hav to transfer the files on internal memory to sd card or sumthin or else all the files would delete as the is only single partition....??
Pls reply if i am ryt cuz nw me goona flash a new rom n asking tht why..!
Sent from my GT-I9300 using xda premium
I ALWAYS move stuff i dont want deleted to my external.
Pictures
Documents
My tibu Back ups
SMS back ups
Nandroids
just to sure i will always have them incase the internal gets wiped

Factory reset+flash wiped my memory

Hi All,
I did a factory reset today and flashed the stock 4.1.1 Polish ROM via Odin. This process seems to have wiped my files (including photos etc) from my S3 (internal memory, not SD card). I've flashed plenty of ROMS before and this has never happened.
Anyone know if it's possible to get them back? I guess I've installed new apps etc now so a lot of the data would have been overwritten. Frustrating!
Thanks for any tips.
UnitedWeFall said:
Hi All,
I did a factory reset today and flashed the stock 4.1.1 Polish ROM via Odin. This process seems to have wiped my files (including photos etc) from my S3 (internal memory, not SD card). I've flashed plenty of ROMS before and this has never happened.
Anyone know if it's possible to get them back? I guess I've installed new apps etc now so a lot of the data would have been overwritten. Frustrating!
Thanks for any tips.
Click to expand...
Click to collapse
You answered your own question with your first sentence : I did a factory reset...
Unfortunately its not possible to get back the data
Sent from my Galaxy Nexus using Tapatalk 2
Unless you backed up on PC or sd card...
Factory reset in S3 will always wipe internal memory as it shares internal memory for applications.
If you want to restore try some data recovery software that supports SD card.
ultramag69 said:
Unless you backed up on PC or sd card...
Click to expand...
Click to collapse
That would be the only way. There is a very small window to recover data wiped from flash memory and on a phone it would be even more difficult. Maybe a Clockwork backup?
Internal SDcard is mounted on the system partition via Fuse..so if you format the /system partition..sdcard is formatted as well..
Pointers for future..
Use CWM for flashing ROMS..(I hate Odin )
Backup your internal SDcard on your PC regularly
Perform a Nandroid Backup on your ExtSDcard before flashing any ROM.
If you ever need to factory reset..use the wipe data/factory reset option in CWM and not in Stock Recovery
For a clean install, if you want to wipe system partition..use wipe /system option under mount and format in CWM..it just wipes the system files and your SDcard data will be safe..
You will not face such issues if you in the future if you follow these pointers.
zoot1 said:
Internal SDcard is mounted on the system partition via Fuse..so if you format the /system partition..sdcard is formatted as well..
Pointers for future..
Use CWM for flashing ROMS..(I hate Odin )
Backup your internal SDcard on your PC regularly
Perform a Nandroid Backup on your ExtSDcard before flashing any ROM.
If you ever need to factory reset..use the wipe data/factory reset option in CWM and not in Stock Recovery
For a clean install, if you want to wipe system partition..use wipe /system option under mount and format in CWM..it just wipes the system files and your SDcard data will be safe..
You will not face such issues if you in the future if you follow these pointers.
Click to expand...
Click to collapse
Thanks for that. Lesson learnt I guess..

How do I format (as in delete EVERYTHING) my internal storage?

I have to much junk and empty folders on the phone. I tried format through CWM, format system, cache, data, emmc...everything is still there. I want to clean (as in new) my internal storage.
Does "factory reset" does that, or is it just for deleting any 'personal' data (pics, files) etc?
Thanks.
Wipe data/factory reset only wipes the data partition. What you want is to format the internal sdcard. Go to Settings | Storage and select "Format SD card."
creepyncrawly said:
Wipe data/factory reset only wipes the data partition. What you want is to format the internal sdcard. Go to Settings | Storage and select "Format SD card."
Click to expand...
Click to collapse
Thanks.
Will I then be able to boot into recovery, or CWM will no longer be there and I'll have to use ODIN?
Also, am I losing ROOT when doing that?
No. No. No.
You can format the root files from CWM recovery. You said you tried that and it didn't do what you want.
Formating the internal sdcard will remove all your personal files from the phone, including pictures and any other files and directories you have created. If that's not what you want to do, then don't format the internal sdcard.
Formating the internal sdcard will not touch the system, kernel, data partition or any other root files. You will not lose root. So yes you will be able to boot into cwm recovery, or even into whatever system you have installed after formating the internal sdcard.
sbi1 said:
Thanks.
Will I then be able to boot into recovery, or CWM will no longer be there and I'll have to use ODIN?
Also, am I losing ROOT when doing that?
Click to expand...
Click to collapse
Common sense, make a backup (meaning copy and save your personal info to somewhere else first, you can delete them later if you really don't need them).
Also, adding to what creepy has said, be sure "SD card" is your internal storage, not external uSD.
I suggest you removing the external uSD card first, just in case.
The reason I said so because with CwMR and Task's AOKP, format SD card is formatting the external uSD card, while "format /emmc" will be do the internal one.
Just precaution.
Thank you both.
Yes, I already 'discovered' that formatting SD Card in CWM formats the external ...luckily I didn't have anything important there.
I still don't get it though. Looks like we are talking about two different things.
I have my internal storage fully backed up. I want to wipe it clean, as in a PC Format. Is there a way to do that, or can I simply remove empty folders in file explorer? Too much junk has been collected there in a year and a half of many custom roms and different apps that I tried and removed.
sbi1 said:
Thank you both.
Yes, I already 'discovered' that formatting SD Card in CWM formats the external ...luckily I didn't have anything important there.
I still don't get it though. Looks like we are talking about two different things.
I have my internal storage fully backed up. I want to wipe it clean, as in a PC Format. Is there a way to do that, or can I simply remove empty folders in file explorer? Too much junk has been collected there in a year and a half of many custom roms and different apps that I tried and removed.
Click to expand...
Click to collapse
Refer to 2nd post. Your internal storage has 2 partitions. One is where all the system data is, and the other is where all the personal data is (where apps install to). If you do what's written in the 2nd post, it will completely wipe clean the personal partition.
dsmboost said:
Refer to 2nd post. Your internal storage has 2 partitions. One is where all the system data is, and the other is where all the personal data is (where apps install to). If you do what's written in the 2nd post, it will completely wipe clean the personal partition.
Click to expand...
Click to collapse
Will I still be able to access CWM and install custom rom from Ext SD?
sbi1 said:
Will I still be able to access CWM and install custom rom from Ext SD?
Click to expand...
Click to collapse
Yes, formatting internal sd card (doesn't matter which partition) does not touch either of those.

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