Hi guys,
I am sorry in advance if it's a stupid question.. I've read a lot of FAQs but I am not sure I understand everything. Sorry about that.
When I do factory reset (which means the same as 'wipe', right?) it does resetting current installed ROM to its original state, right?
So, let's say I am doing factory reset the first time (so currently my phone has store ROM installed) so factory reset will revert all the changes in the installed ROM (such as settings, installed apps, all the data) to its original state - which the phone had since it got ROM installed.
But If I got root (which means I replaced secured kernel with unsecured one) and I installed another customized ROM and for some reason I want to do factory reset again - what's gonna happen?
Will factory reset revert original store ROM back or it will revert manually installed ROM (customized ROM) to its after installation?
And as far as I understood factory reset does nothing with kernel? It only affects ROM? So in the second case , when I use non-store ROM and I am doing factory reset - nothing will happen with my unsecured kernel?
I am stacked here.. Thanks..
When you do a factory reset, regardless of the ROM installed, it erases the /data and /cache partitions of the phone. If you modified the /system partition (remove bloat) it will not undo those modifications. To return to a true factory state, you would need to run an official OEM utilitity, such as an RUU for HTC devices.
I hope that helps.
Sent from my EVO 3D using xda premium
The Fer-Shiz-Nizzle said:
When you do a factory reset, regardless of the ROM installed, it erases the /data and /cache partitions of the phone. If you modified the /system partition (remove bloat) it will not undo those modifications. To return to a true factory state, you would need to run an official OEM utilitity, such as an RUU for HTC devices.
I hope that helps.
Sent from my EVO 3D using xda premium
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Thank you, but I am not sure it's clear for me.. So - if I do factory reset - my ROM remains the same. If I have custom ROM - I will have the same ROM after reset - right? It's not gonna be overwritten with a store ROM ?
As he said already... the rom that you have installed will remain until you flash another one, the factory reset only will erase all user data, so your rom will be clean as a fresh install.
RoberGalarga said:
As he said already... the rom that you have installed will remain until you flash another one, the factory reset only will erase all user data, so your rom will be clean as a fresh install.
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I did not understand him and that's why I asked again.. Just to be sure.. Thanks.
Related
Hey, just wondering, how to do a fresh wipe, restore to the phone to original state, and clean all the data installed? Bluetooth transferred, downloaded file. Will the factory reset button able to do that?
Sent from my GT-I9100 using XDA App
Factory reset will return to clean CURRENT firmware .
Original state you need to have saved your original firmware if you have changed firmware or use Branded roms post Stock roms post to flash as near as possible to original .
jje
If you have clockworkmod, you can format sd etc. and wipe all caches/data as far as i know. Don't know if stock-recovery mode does? Never used it ^^
Stock recovery only wipes the userdata partition, does not wipe the SD card or Internal storage.
Hi yesterday I flashed the stock 4.1.2 update to my rooted s3 and I had expected to lose all my data and apps so I backed everything up with titanium ready to restore it after the update, surprisingly I didn't lose anything after flashing.
I was just wondering if I was to flash cyanogenmod 4.1.2 would I lose all data and apps this time?
Thanks
Sent from my GT-I9300 using xda premium
No - all your data/apps will stay unless you do a full wipe/factory reset in recovery.
mikep99 said:
No - all your data/apps will stay unless you do a full wipe/factory reset in recovery.
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The data will remain, but it is a granted prerequisite to flashing that one must do a factory reset before flashing a new rom. Note: this applies only for a new rom altogether, not updates to the same one!
Sent from my GT-I9100
If I helped you, please hit the thanks button!
You won't lose your apps/data unless you do a wipedata/factory reset . Also some roms pre-request a full wipe in order to the rom to boot .
Wipe may be asked for by the rom maker to avoid conflicts and stop users posting my app stopped this rom working .
Rom may be a wipe rom but not usually .
Personally i never full wipe unless problems but do wipe cache dalvik and system only before any instal .
jje
So technically should I be able to flash cyanogenmod without doing anything but wipe cache and davlik cache?
Thanks again for the help
Sent from my GT-I9300 using xda premium
yes, you should be able to.
if you encounter any problems then a full wipe is recommended.
I'd back up your apps/data just in case.
I just flashed the XXBLFB ROM (T-Mobile stock ROM; coming from CM9.1). After three OTA updates (BLFB>BLH3>DLIH>ELLA) I found that not only the data partition was wiped (as expected), but also the sdcard partition with all photos and other data were deleted. Is this normal? I'm pretty sure I've flashed firmwares to different devices with Odin before (no repartition!) and the sdcard was never wiped. I'm so annoyed right now, because my CWM backup was saved on the internal sdcard.
Flash a custom rom and u will not lose ur data because s3 data add in the system
Sorry, I do not understand what you are saying.
Im sorry im not a english men lol ok. First flash a custom rom its simple and after that all your data will not be lose after
rida007 said:
Im sorry im not a english men lol ok. First flash a custom rom its simple and after that all your data will not be lose after
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That is the observation I have made in the past. However, my question is why my data was deleted with the stock ROM.
Stock + ODIN = Always wipe of /data AND /sdcard?
The answer : galaxy s3 is like that . System + data not like a i9100 or i9000
well, did you do a factory reset from recovery? because if not, flashing a stock ROM doesn't wipe anything - it doesn't even touch the /data/
But a factory reset does in fact wipe /data/, including /data/media, which is /sdcard0
Glebun said:
well, did you do a factory reset from recovery? because if not, flashing a stock ROM doesn't wipe anything - it doesn't even touch the /data/
But a factory reset does in fact wipe /data/, including /data/media, which is /sdcard0
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Yes, I believe I did the factory reset in the stock recovery, because the ROM didn't boot after flashing. This must have done the damage. Doing a factory reset from CWM recovery never touched my /sdcard, if I remember correctly.
Ralfioni said:
Yes, I believe I did the factory reset in the stock recovery, because the ROM didn't boot after flashing. This must have done the damage. Doing a factory reset from CWM recovery never touched my /sdcard, if I remember correctly.
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That is the reason why you lost everything, stock 3e recovery factory reset wipes everything, in future always back up sd to computer before Odin flash, but I don't think you need telling that now
slaphead20 said:
That is the reason why you lost everything, stock 3e recovery factory reset wipes everything, in future always back up sd to computer before Odin flash, but I don't think you need telling that now
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Yes, screw 3e! I was used to the CWM behavior, that's why didn't back up to the external sdcard (which was filled with an older CWM backup). Anyway, thanks for all your answers.
Updgraded to Jelly Bean 4.1.2 via Kies. Un-rooted, stock SGH-I777. Stuck in bootloop now at AT&T logo. I already did the wipe data cache in recovery mode with no luck so it leaves me to factory reset as my next option. I've spent several hours browsing through the forum already. Do any of the below allow me to keep data?
1) Use Odin and stock firmware - downloaded the UCMD8 tar file
2) Root, install kernel w/ CWM to use backup functionality. (http://forum.xda-developers.com/showthread.php?t=1285894)
Just need a point in the direction I need to go, I'll handle the rest.
If the result is all the same (i.e. data loss), I'll use this issue as an opportunity to put a custom ROM on my phone.
Thanks!
Yes, most likely a wipe data/factory reset performed in recovery would correct the problem, but you will lose some system data. Which specific things are you worried about losing? You won't lose your photos, or any data from applications installed from the play store.
You are going to have to perform a wipe data/factory reset to use odin and the stock UCMD8 firmware. In fact, at this point it is probably the only way out.
U could try to re Odin the firmware first. Not sure where ya got it from, but it should be a no wipe. But if that doesn't solve ur problem, then ya have a few options--- Odin a custom kernel (like AJK), and then u could Mount usb storage through recovery and backup ur stuff to ur pc. Then try to see if it will boot up without looping. If it still loops then u need to go back into recovery and wipe data/factory reset. Reboot. And it should be good. Or if ya don't care about ur data, then just reboot to recovery and wipe data and reboot.
Edit: Ninja'd by creepyncrawly !
Sent from my SAMSUNG-SGH-I747 using xda premium
mostly just concerned with losing SMS but i have a backup from a few weeks ago so im not out much.
thanks for the answers! I guess i'll just have to make the plunge on one of the options.
I have a question that must be obvious to many but I don't know the answer and am curious.
Right now I am rooted and if I want to install a new rom I do the factory reset and wipe caches in recovery and then install the custom rom.
What happens if
1. I do this reset and clear caches within recovery and just reboot without installing a rom?
2. What happens if I do a factory reset with settings?
I know the phone will start in setup mode but will it have the last rom I installed or what?
If you're wiping system too, then the phone won't boot - except to recovery if you tell it to. If you're not wiping system but you're wiping data, then the phone will boot but be like you just installed it new for the first time and you have to set it up.
I'm not positive what Factory Reset within settings will do, if it works or not, when you have a custom recovery installed. Normally under a completely stock ROM with stock recovery, Factory Reset from Settings or from the stock recovery would wipe everything but system. It wipes Data, Cache, Dalvik, and internal storage. You can achieve the same thing from custom recovery if you wish to. And yes, as long as you didn't wipe System, the last ROM you had installed would boot.
Doing a factory reset from settings with twrp installed should be like doing a factory reset in twrp. TWRP will takeover when the phone restarts to do the factory reset. At least that is how it was with my Moto X phones. I've done it with Jasmine on my G3, but don't remember the outcome. It was only a few days ago too. Lol. I'm a retard.
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