[Q] Wipe data necessary??? - Defy Q&A, Help & Troubleshooting

Hi everybody! I have got a question, can I do only wipe cache & wipe dalvik cache when I pass from White rabbit(CM7 modified) to CM9?? Just to not installing all apps

Full wipe is recommended.

Definitely full wipe needed or else you will encounter some issues
Sent from my MB526 using xda app-developers app

Questions go in the Q&A section

As u are shifting major versions of CM u need to do a factory reset too.
1.Wipe data
2.Factory Reset(U ll loose everything. Except the SD card content)
3.Wipe Cache partition
Then flash the ROM.
It is recommanded in Defy update guide for CyanogenMod.

Related

[Q] About installing CM7 Nightly builds

Hey guys just a quick question about installing nightly builds on the nook. When Rom Manager asks whether to wipe data/cache and what not, if I select it, will it wipe the internal memory completely? leaving no user files behind? or will it only wipe the system files?
It will wipe everything and it will be a fresh install.
Sent from my LG Optimus V using Tapatalk
If you update, just wipe cache
It wipes the /data partition but doesn't wipe /sdcard /sd-ext or /met/emmc.
Sent from my MB860 using xda premium
EGM92 said:
Hey guys just a quick question about installing nightly builds on the nook. When Rom Manager asks whether to wipe data/cache and what not, if I select it, will it wipe the internal memory completely? leaving no user files behind? or will it only wipe the system files?
Click to expand...
Click to collapse
Just wipe Davlik.
if boot is longer than normal after wipe, it's normal!
votinh said:
If you update, just wipe cache
Click to expand...
Click to collapse
patruns said:
Just wipe Davlik.
Click to expand...
Click to collapse
So... just wipe Davlik Cache is what you guys are saying?
Good question helped out a newb here
Jiv_au said:
So... just wipe Davlik Cache is what you guys are saying?
Click to expand...
Click to collapse
Correct
Sent from my LG Optimus V using Tapatalk
Jiv_au said:
So... just wipe Davlik Cache is what you guys are saying?
Click to expand...
Click to collapse
Note: wipe cache and wipe Dalvik cache are 2 different things.
+ wipe cache is a quick way to clean the current running ROM
+ wipe Dalvik is a completely clean.
After wipe Dalvik, next time it boots, it will take a lot longer time due to the device has to re-compile the whole thing before ROM start running and booting.
I think I need to drop a few lines about wipe cache/Dalvik.
As I posted above, I said it wiped clean.
Apparently, I am NOT 100% correct.
I just updated to nb198, wiped cache (formatting /cache) then wipe Dalvik cache.
After done updating ROM, booting up, I expected everything clean, completely fresh.
It's not the case, I went to Market and all old search history were still shown. Not only with Market but other apps too.
So
a. either wipe cache/Dalvik is NOT completely clean wipe or
b. it was completely clean but somehow, those old cache info, which stored somewhere I don't know, get automatically restored back.
Okay, I did a quick read of the FAQ for CWR, and came across these:
Wipe cache partition
Wipes the cache partition of the device to clear all the data accumulated there over use. This is often used before installing a new ROM, app, kernel or any similar mod via recovery.
Wipe Dalvik Cache
Allows you to wipe the cache for the Dalvik virtual machine (the custom-built Java virtual machine for Android).This is required before most ROM installations and at other occasions too, for fixing some problems.
So, I'm taking this guide on board and will wiping Cache AND Davlik. So that's two steps prior to installing a new CM7 nightly build.
votinh said:
I think I need to drop a few lines about wipe cache/Dalvik. *snip*
a. either wipe cache/Dalvik is NOT completely clean wipe or
b. it was completely clean but somehow, those old cache info, which stored somewhere I don't know, get automatically restored back.
Click to expand...
Click to collapse
You didn't happen to store them in uSD card? Or perhaps app data/cache are separate from system data/cache...
Will look into it further...

[Q] Who can make a tut about Wipes

Hi,
I mean, When it can be usefull to Wipe Cache and/or Dalvik or I don't know.. ^^ for example after flashing a new nightly, if it can make the phone faster.
or when it's totaly useless to wipe something,
it would be very cool, thanks
Actually full wiping is only necessary while switching roms. And dalvik wipe when installing mods or kernel updates (quarx). You can actually do dalvik wipes without any bad consequences-Android just generates the cache again
Sent from my MB526 using xda premium

[Q] How do I FULLY wipe my device?

Might be a stupid question, but anyone know how to do this? I want to only keep PSX And neo with no other data on it (Such as games that require downloaded data, apps and etc). Wiping data on CWM doesn't wipe everything (Yes I did cache and dalvik as well), would wiping the sdcard wipe everything and leave the ROM? Hopefully someone can help, thanks
Also, if the only way of wiping brings me back to stock/unrooted, would I still have CWM installed to install custom ROMs and such still?
These are the wipes you are looking for:
1. wipe data/factory reset
2. wipe cache partition
3. mounts and storage > format sdcard
4. advanced > wipe dalvik cache
That should leave you with a empty/clean internal sd card, no data (apps, settings, etc.), and your current rom and kernel.
if you want to completely wipe everything and go back to stock Android, just use one of the toolkit and flash stock image. it will wipe everything in the phone.
Or just fast boot the images including the userdata file it'll erase the entire phone memory. Toolkits are convenient but you should know how to use fastboot too it saved me when my recovery wouldn't boot and there was no ROM on the phone.
Sent from my Nexus 4 using xda app-developers app

[Q] how to flash roms without losing data n files?

Alright guys I feel very nooby asking this but this is my first device that doesn't have a sd slot. Is there a way to flash a Rom without deleting the download and titanium folders?
My steps prior to flashing are
Wipe data, cache, n dalvik
Flash Rom
Then wipe cache n dalvik again
But if I wipe data then the Rom zip would be deleted before I can flash it?
Please help me on this thanks!
Sent from my LG-D801 using Tapatalk
Hi,
Make only wipe data/factory reset, wipe cache partition and wipe dalvik cache, tat's all then flash your rom and reboot.
Don't wipe anything related to sd card/ext sd card or internal storage so you keep all your files in your "sd card" intact.
lilviet93 said:
Alright guys I feel very nooby asking this but this is my first device that doesn't have a sd slot. Is there a way to flash a Rom without deleting the download and titanium folders?
My steps prior to flashing are
Wipe data, cache, n dalvik
Flash Rom
Then wipe cache n dalvik again
But if I wipe data then the Rom zip would be deleted before I can flash it?
Please help me on this thanks!
Click to expand...
Click to collapse
This won't happen on your LG G2. Even when using CWM you can see it is looking for an external SD card in the command line when doing a Factory Reset. You're internal SD card is never touched.
When you flash a ROM just:
Factory Reset
Flash Rom
Obviously make a backup first if you're worried, and you may need to flash Gapps depending on the ROM you flash.
understood, thanks guys

[Q] From cm 11 to OmniRom

Will i be able to install Omni ROM by:
-Booting into recovery
-Wiping data/factory reset
-Wiping cache
-Wiping dalvic cache (under advanced)
-Choosing install Rom from sd card
-Locating Rom and flashing it ?
Without any problems?
Running CM11 4.4.2, which came with the Cyanogenmod installer.
Yes of course it will work. You can skip wiping cache and dalvik.
Wiping data/factory reset is everything except /system which flashing any ROM will overwrite.
Sent from my Nexus 4 using Tapatalk
dethrat said:
Yes of course it will work. You can skip wiping cache and dalvik.
Wiping data/factory reset is everything except /system which flashing any ROM will overwrite.
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
It will also not wipe internal storage, which I assume OP will want to keep.
Sent by carrier pigeon

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