Database Info

Cold Boot/Wipe Data/Factory Reset

Hi,
Can any expert tell me the difference between cold boot/wipe data/factory reset?
I know cold boot clears up the cache and all user data/apps will stay. Root will stay too.
factory reset will erase everything and all user data/apps will be gone. Will root stay?
How about the wipe data in cold boot menu?
Will we lose all user data/apps by choosing wipe data? How about root?
Thanks.

ubcjack said:
Hi,
Can any expert tell me the difference between cold boot/wipe data/factory reset?
I know cold boot clears up the cache and all user data/apps will stay. Root will stay too.
factory reset will erase everything and all user data/apps will be gone. Will root stay?
How about the wipe data in cold boot menu?
Will we lose all user data/apps by choosing wipe data? How about root?
Thanks.
Click to expand...
Click to collapse
As far as I know Wipe Data in the boot menu and Factory Reset are the same thing. As you say they will delete all user data and apps, leaving only system apps. You will lose root when doing this, but I have read that you can restore with OTA RootKeeper (if you backed it up before doing wipe), since this will be stored in the system part of the drive which doesn't get wiped. So you will need to redownload RootKeeper and restore root. I have not tried this, but from what I have read it seems to be possible.

http://forum.xda-developers.com/wiki/ASUS_Transformer_Pad/TF300T
Scroll down to bottom of page. Good description of cold boot vs reset.

ubcjack said:
factory reset will erase everything and all user data/apps will be gone. Will root stay?
How about the wipe data in cold boot menu?
Will we lose all user data/apps by choosing wipe data? How about root?
Thanks.
Click to expand...
Click to collapse
Factory reset will not touch the su binary (/system/bin/su and/or /system/xbin/su), which is what root depends on.
You'll need to reinstall superuser or supersu, but the actual rooting will stick.
Wipe data PROBABLY works exactly the same.
Factory reset is in other words safe for root.

black screen

Hi,
I´ve tried to use "root live logcat". This app is supposed to show logcat during phone boot, but I got black screen instead. Phone will boot but I´d need to know how can I remove black screen.
I tried to uninstall root live logcat and copy new bootanimation.zip into data/local and system/media but it didn´t help.

Martin155 said:
Hi,
I´ve tried to use "root live logcat". This app is supposed to show logcat during phone boot, but I got black screen instead. Phone will boot but I´d need to know how can I remove black screen.
I tried to uninstall root live logcat and copy new bootanimation.zip into data/local and system/media but it didn´t help.
Click to expand...
Click to collapse
Wipe cache/dalvik cache and try reflashing the rom and/or kernel?

kwibis said:
Wipe cache/dalvik cache and try reflashing the rom and/or kernel?
Click to expand...
Click to collapse
if i flash rom wil it delete me any data or apps?

Martin155 said:
if i flash rom wil it delete me any data or apps?
Click to expand...
Click to collapse
If you select wipe data/factory reset...you will lose everything that isn't saved to your USB storage. You should be fine with just flashing the ROM without the data/factory wipe. Just make sure to wipe your cache and Dalvik!

Martin155 said:
if i flash rom wil it delete me any data or apps?
Click to expand...
Click to collapse
What betoishly says. Wiping cache and dalvik cache does not affect your apps/data. Only if you do factory reset you wipe everything.

For the record, this solution did not work. Any other suggestions?
After wiping the cache partition and Dalvek cache, the phone continued to boot with a black screen. It then went to an "Android is upgrading..." screen and Optimize every single one of my apps (128). Nothing was messed up.

[Q] Factory Reset wipes root!?!?!

So i rooted my tablet when i had ISC then i updated to the latest firmwares but the question is if i factory reset my tablet will i lose root again? I did this once but i lost root (super user deleted). So i had to down grade and reroot ics and i just updated again but im wondering if the factory reset is basically losing my root or is there an error to prevent this? I want to factory reset my tablet since everytime i update my tab in order for it to run smoothly like other systems. If anyone has an answer please let me know! Sorry if you dont understand my english -_-

Hell-o Niceguy and welcome!
Try cold booting first in order to save your root.
Factory reset will wipe all and place you back at the factory state.
So yes your root will be gone.
Hope I have understood you correctly.

I've never done it myself, but factory reset should not modify the system partition, so it should not be possible to lose the su binary that gives you root access.
Rationale: The system partition is read-only in normal use, and there is no other partition that contains the unmodified factory image of the system partition.
Flashing a complete Asus firmware however overwrites the complete system partition, which *will* kill your root.

Updating the Superuser or SuperSU apps through the Play Store can place them in the data partition instead of system. They would then be lost after a wipe. You could try reinstalling from the Play Store...

Pressed factory reset by accident

Now it's my turn. Pressed factory reset by accident in boot loader. Can get to TWRP but it says E: Unable to mount storage
e:Unable to mount /sdcard/TWRP/twps. when trying to read settings file. etc...
Advanced File manager in TWRP shows /sdcard/TWRP
Any ideas???? If I try to mount data in TWRP my Mac wants to initialize.
Thanks
TWRP shows internal storage 0 mb

I flashed the stock recovery, then ran it and somehow it booted right into CM11. Everything was lost, but it's working again.

Factory reset wipe everything! Including SD card.

null0seven said:
Factory reset wipe everything! Including SD card.
Click to expand...
Click to collapse
Possibly, but how come CM11 was still on there? I think that the Boot Loader in Moonshine's factory reset is not compatible with CM11. Luckily the stock recovery fixed things for me.

808phone said:
Possibly, but how come CM11 was still on there? I think that the Boot Loader in Moonshine's factory reset is not compatible with CM11. Luckily the stock recovery fixed things for me.
Click to expand...
Click to collapse
I had the same issue, pressed by mistake factory reset in bootloader some time ago. I was pressing vol down to reach recovery, there was a slight lag and I pressed it a second time the immediately I've pressed power...so cursor has jumped 2 rows then executed. I've solved it only by flashing stock recovery and resetting to factory settings again, then flashed TWRP.
Now why you still had CM11...well not 100% sure but in TWRP when you wipe to factory the system partition is not formatted. I've paid attention once to the messages during a wipe and it was formatting data, cache, dalvik and android secure but not system. A reason can be that while flashing any ROM, the install script formats system at the beginning so theres no need to do that with factory reset.
Now I can only think that the factory reset from bootloader does the same and system is not wiped. Theoretically it is correct...system is read only especially on a stock non rooted device and resetting it to factory practically means that any trace of personal settings/aps and so on should be erased. And those are not stored on the system partition. There is also no hidden place on the phone where a recovery image of the original android OS is kept so this is not like on the laptops where you reset to factory and Windows is reinstalled from the recovery partition. My guess is that the factory reset just wipes all partitions that contain personal data and settings and leave system intact. So after a wipe and reboot is like you first start it.
You still had CM11 cause the wipe didn't format system...If anyone has a better explanation I would be glad to hear it. So From my point of view nothing went wrong and has nothing to do with the Maximus recovery or it's compatibility with CM11. It would have happen the same if you have used any other stock recovery

Factory reset, resets youre phone to original settings.
Anyway, its good that the phone works.

null0seven said:
Factory reset, resets youre phone to original settings.
Anyway, its good that the phone works.
Click to expand...
Click to collapse
Yes. And it is not formatting system when doing this. So any os is installed will be kept
Sent from nowhere over the air...

Rapier said:
Yes. And it is not formatting system when doing this. So any os is installed will be kept
Sent from nowhere over the air...
Click to expand...
Click to collapse
I don't want to try it again but I wonder if moonshine's factory reset is incompatible with cm11?

Dont understand what do you mean by "incompatible". The factory reset from bootloader is not the same thing as the one from a custom recovery. You shouldn't do a factory reset from bootloader regardless of the ROM you're using
Moonshine is an S-Off method, I didn't used it myself so I don't know what factory reset option is in there
Sent from nowhere over the air...

I never said anything about the custom recovery. If you should never use it, why is it there and why does it make the SD card not available?
Wow, HTC says you can use it here:
http://www.htc.com/us/support/htc-one-x-att/howto/313779.html
I'm sure you know something others like me don't, but I when I mean "incompatible" I mean that I don't believe that it should make the sdcard unavailable and make the phone think it has zero MB. I think what you might have missed is that I used factory reset from the custom boot loader from moonshine. I was wondering if that factory reset was compatible - that's all.
Again, it was a mistake - it's not like I chose it on purpose. Thank you for the help.

808phone said:
I never said anything about the custom recovery. If you should never use it, why is it there and why does it make the SD card not available?
Wow, HTC says you can use it here:
http://www.htc.com/us/support/htc-one-x-att/howto/313779.html
I'm sure you know something others like me don't, but I when I mean "incompatible" I mean that I don't believe that it should make the sdcard unavailable and make the phone think it has zero MB. I think what you might have missed is that I used factory reset from the custom boot loader from moonshine. I was wondering if that factory reset was compatible - that's all.
Again, it was a mistake - it's not like I chose it on purpose. Thank you for the help.
Click to expand...
Click to collapse
The reset to factory from bootloader exists because on stock ROM there's no custom recovery that has that option....so it's in bootloader. For it to work properly though, you must have the stock recovery also. If you have a custom recovery like twrp/cwm and use the wipe from bootloader it'll mess your sd cause phone is not able to perform the wipe properly with that custom recovery. That's why, in order to get back to normal you should flash back stock recovery and perform the wipe from bootloader again.
Sent from nowhere over the air...

Thank you for the clarification. It makes sense. Too bad that reset is so close to the recovery command. It's pretty weird that I didn't have to run the wipe from the stock boot loader again. It ran and rebooted the phone into CM11. Anyway, I am glad I am back to running. Thanks.

Cant upgrade because of faulty TWRP, need help removing TWRP

Hi,
I accidently flashed TWRP, but i was already on emui9 so twrp doesent work there.
Now i can update the EMUI anymore because when the phone restarts during the install process it goes into recovery (twrp) which causes the update to fail
My question is: Can i remove twrp, maybe by flashing the orignal ramdisk image? pls help

You would have to reflash the recovery partition... Which we don't have, and since TWRP is kind of broken on EMUI 9.... well...
Can you just wipe caches and reboot to get the phone working? The update is stored in the cache partition, if you wipe cache it should boot normally.

acejavelin said:
You would have to reflash the recovery partition... Which we don't have, and since TWRP is kind of broken on EMUI 9.... well...
Can you just wipe caches and reboot to get the phone working? The update is stored in the cache partition, if you wipe cache it should boot normally.
Click to expand...
Click to collapse
so i cant really get rid of TWRP? :/
And how can i wipe the cache?

Pfollvosten said:
so i cant really get rid of TWRP? :/
And how can i wipe the cache?
Click to expand...
Click to collapse
Not if you are on EMUI 9... I don't believe so as we don't have the factory image for it, and to my knowledge we can't just dd it or make a backup of it right now. Although you might be able try the downgrade to 8.1 in another thread here, then upgrade via OTA again, but that's your choice.
I haven't installed TWRP on this devices, but basically go to the wipes menu, advanced wipes, and tick anything that says cache in it's name (often Dalvik cache and cache) and swipe to wipe them. This will not harm any of your data or applications, only the cache space. Then reboot.

acejavelin said:
Not if you are on EMUI 9... I don't believe so as we don't have the factory image for it, and to my knowledge we can't just dd it or make a backup of it right now. Although you might be able try the downgrade to 8.1 in another thread here, then upgrade via OTA again, but that's your choice.
I haven't installed TWRP on this devices, but basically go to the wipes menu, advanced wipes, and tick anything that says cache in it's name (often Dalvik cache and cache) and swipe to wipe them. This will not harm any of your data or applications, only the cache space. Then reboot.
Click to expand...
Click to collapse
The problem ist twrp doesent work.
It freezes when i enter recovery

Pfollvosten said:
Hi,
I accidently flashed TWRP, but i was already on emui9 so twrp doesent work there.
Now i can update the EMUI anymore because when the phone restarts during the install process it goes into recovery (twrp) which causes the update to fail
My question is: Can i remove twrp, maybe by flashing the orignal ramdisk image? pls help
Click to expand...
Click to collapse
Just flash your stock RECOVERY_RAMDIS.img*from your firmware. This will repair your recovery.
To extract images from*UPDATE.APP*in the zip, you have to use*Huawei Update Extractor.

oslo83 said:
Just flash your stock RECOVERY_RAMDIS.img*from your firmware. This will repair your recovery.
To extract images from*UPDATE.APP*in the zip, you have to use*Huawei Update Extractor.
Click to expand...
Click to collapse
Can you explain a bit further? Where do i get the RAMDIS.img from and how do i flash it?
and whats huawei update extractor?