Develop Bugs

[Q] Galaxy Nexus Complete Wipe

Hi everyone!
My Galaxy Nexus has become slow over the last year, I think due to several factors and trash that's been accumulating onto its memory.
I would therefore like to bring it TOTALLY back to where it was when I switched it on for the first time, consequently deleting all data on it.
I have to mention that the phone originally had ICS 4.0.4 and was updated to JB 4.2.2.
I have tried to read a bit about the topic and found out there are many options; but as those solutions also involved the flash of a new ROM, thing of which I'm not intrested, I preferred asking here for further explanations or solutions on what is best to do.
I was wondering how effective the "Factory data reset" that the phone offers under the "Backup & reset" menu of "Settings" is. In particular: does it delete all the data (Cache, personal, as well as apps) or does it leave something behind?
Also, I've read things about CWM, which seems to be the most apt tool for wiping. (I haven't installed it, and do not plan onto; I've only run it temporarily).
If someone could explain me what the following (and particularly the last 3 [such as Dalvik?]) do exactly, I would be very grateful.
Wipe Data/factory reset
Wipe Cache
Wipe Dalvik-Cache
Wipe Battery Stats
Format /system
Also, when I format, will I get the version of Android I had originally (ICS) or the lastest I updated to (JB)? In the latter case... Did the phone store (hence occupying memory) all the versions that were downloaded in between?
Should you have better ideas on how to achive what I need, please let me know.
Thank you!

Anybody willing to help?!

what carrier do u have for your galaxy nexus?

OP,
1) factory reset in the menu in android will wipe everything off the phone, but will not return the phone to the original rom of when you got it.
2)
if you have stock recovery
Wipe Data/factory reset - wipes all data/apps from the phone (including stuff on /sdcard/ )
if you have a custom recovery
Wipe Data/factory reset - wipes apps and app data off phone, leaves /sdcard alone
Wipe Cache - wipes cache
Wipe Dalvik-Cache - wipes davlik cache
Wipe Battery Stats - deletes the battery stats file
Format /system - formats the /system directory ( you will not have a OS after this )
3) the phone will not go back to a previous version of android unless you flash it. end of story.

i decided to go back to 4.1.2 after using 4.2.2 after a few months, and many disappointments later. i ended up downloading factory images for 4.1.2 and the old radios. and then used my older verstion of the Galaxy Nexus ToolKit to flash everything back. it was painless and fast. But I have stayed on AOKP, so i'm unsure how else you will be able to go back fully "stock."

Get a stock rom ,flash .
sent by reversed alien technology....

jaymazz13 said:
what carrier do u have for your galaxy nexus?
Click to expand...
Click to collapse
It's a no brand GSM Nexus, though the carrier is TIM (Italy).
Zepius said:
OP,
1) factory reset in the menu in android will wipe everything off the phone, but will not return the phone to the original rom of when you got it.
2)
if you have stock recovery
Wipe Data/factory reset - wipes all data/apps from the phone (including stuff on /sdcard/ )
if you have a custom recovery
Wipe Data/factory reset - wipes apps and app data off phone, leaves /sdcard alone
Wipe Cache - wipes cache
Wipe Dalvik-Cache - wipes davlik cache
Wipe Battery Stats - deletes the battery stats file
Format /system - formats the /system directory ( you will not have a OS after this )
3) the phone will not go back to a previous version of android unless you flash it. end of story.
Click to expand...
Click to collapse
I do have a stock recovery, but I could temporarily run CWM through mskip's tool: there should be no problem I believe.
Also, if I run "Format /system", and therefore have no OS, how am I supposed to act later? Get the stock ROM from Google and flash it through mskip's tool (in this case, could I do it through the Stock Recovery or I imperatively need CSW?)? Or there is another partition with a backup that I could use?
Further, do you think that formatting the /system folder is pivotal for a complete clean or it just adds the hassle of reflashing?
Just for curiosity:
How will deleting the battery stats affect my phone/battery life, if it will?
What exactly is Dalvik-chache?
Thank you all!

UlixesTNT said:
It's a no brand GSM Nexus, though the carrier is TIM (Italy).
I do have a stock recovery, but I could temporarily run CWM through mskip's tool: there should be no problem I believe.
Also, if I run "Format /system", and therefore have no OS, how am I supposed to act later? Get the stock ROM from Google and flash it through mskip's tool (in this case, could I do it through the Stock Recovery or I imperatively need CSW?)? Or there is another partition with a backup that I could use?
Further, do you think that formatting the /system folder is pivotal for a complete clean or it just adds the hassle of reflashing?
Just for curiosity:
How will deleting the battery stats affect my phone/battery life, if it will?
What exactly is Dalvik-chache?
Thank you all!
Click to expand...
Click to collapse
It wipes your stats from your previous ROM ,so when you flash another ROM you get a completely different stats ,so you might get good battery or not depends on ROM/kernel
Sent from my Galaxy Nexus using xda app-developers app

Wiping battery stats will accomplish nothing useful.
https://plus.google.com/app/basic/stream/z13dgb0rksywh3muq222fzkqnwfgdbgrk04
Its a myth.
About dalvik... Just Google search.
Sent from my Nexus

UlixesTNT said:
It's a no brand GSM Nexus, though the carrier is TIM (Italy).
I do have a stock recovery, but I could temporarily run CWM through mskip's tool: there should be no problem I believe.
Also, if I run "Format /system", and therefore have no OS, how am I supposed to act later? Get the stock ROM from Google and flash it through mskip's tool (in this case, could I do it through the Stock Recovery or I imperatively need CSW?)? Or there is another partition with a backup that I could use?
Further, do you think that formatting the /system folder is pivotal for a complete clean or it just adds the hassle of reflashing?
Just for curiosity:
How will deleting the battery stats affect my phone/battery life, if it will?
What exactly is Dalvik-chache?
Thank you all!
Click to expand...
Click to collapse
1) if you wipe /system, you need to flash the system.img again.
2) you dont need cwm or a toolkit to flash the system.img from google
3) whenever system.img is flashed, it wipes what was there anyways.
4) deleting battery stats does nothing other than remove the log file (which is the battery stats file)
5) use google for dalvik. its all over the place there
6) STOP USING A TOOLKIT. - http://forum.xda-developers.com/showthread.php?t=1626895

[Q] format internal memory samsung galaxy s 4

so i formated the internal storage with team win rcovery. I installed Alpha s4 v2.0 and it works fine but when i install anyothere mods and reboot my phone it stays on the logo Galaxy S 4 logo and I have to re flash the ROM again but i have to formatted the internal storage again just to flash the rom . does any one have any idea how to fix this pls help

Reformat it in recovery
Sent from my SGH-M919 using Tapatalk 2

richardlibeau said:
Reformat it in recovery
Sent from my SGH-M919 using Tapatalk 2
Click to expand...
Click to collapse
what do you mean like how ? because installing rom like doing a factory reset doesn't work get me on to the Galaxy S 4 logo and that it. I have to format the data just to install any Rom dont know why but im getting frustrated about it

SuperAndroidman said:
what do you mean like how ? because installing rom like doing a factory reset doesn't work get me on to the Galaxy S 4 logo and that it. I have to format the data just to install any Rom dont know why but im getting frustrated about it
Click to expand...
Click to collapse
Should be an option in mount storage or advanced section of recovery to format .
Sent from my SGH-M919 using Tapatalk 2

STOP!!! TWRP is known for messing up your phone when you format internal memory. It will lead to bootloops and even the rom not booting at all. Switch recoveries to Clockwork or Philz and you will be fine. You may need to Odin back to stock to fix the issue first.

Cal-El said:
STOP!!! TWRP is known for messing up your phone when you format internal memory. It will lead to bootloops and even the rom not booting at all. Switch recoveries to Clockwork or Philz and you will be fine. You may need to Odin back to stock to fix the issue first.
Click to expand...
Click to collapse
just doing Odin put me back stock or do i need look for the stock rom and stock kernel then run odin? link pls

What to Wipe in TWRP
If you are switching ROMs (changing from one ROM to a completely different one) then you should perform a factory reset. A factory reset wipes data and cache (which includes dalvik cache). A factory reset will also wipe sd-ext and android_secure if your device has those items. 99% of the time, this is all that you need to wipe and you only need to do it once, not three times as some people would lead you to believe.
If you're installing a nightly update, then oftentimes you don't need to wipe anything at all. However, if you encounter strange behavior, then you may want to consider performing a factory reset. Of course, if the ROM maker recommends that you do a factory reset during an update, then it's a good idea to follow their recommendation.
The vast majority of ROMs wipe system as part of the zip install. This means that in most cases you do not need to wipe system... ever.
At this point, cache (not dalvik cache) is primarily used for recovery. It's used to store the recovery log and for storing OTA (Over The Air) updates. You probably don't need to wipe cache, and cache is already wiped as part of a factory reset.
In most ROMs, dalvik cache is stored in the data partition, so if you do a factory reset, you've also wiped dalvik cache. In a few custom ROMs, especially on older devices with small data partitions, the ROM maker may have moved dalvik to the cache partition to provide you with more room for apps. Since we wipe cache with a factory reset, again, you probably don't need to wipe dalvik. There are a few situations where you may need to wipe dalvik cache when installing updates, but you will know that it's needed when you are greeted with force closes when trying to open some apps.
Depending on your device and its configuration, you may have options for wiping internal storage, external storage, sd-ext, android_secure, and/or an option for formatting data. There's almost no reason that you would ever need to use these items. These options are there for convenience. For instance, if you're getting ready to sell your device, then it's a good idea to wipe everything on the device so that the new owner doesn't get your private data. Note that these wipe options may not be completely destructive. If you store especially sensitive information on your device or are really concerned about your private data, then you may need to look into other options to ensure that your data is fully destroyed.
http://teamw.in/whattowipe
http://teamw.in/project/twrp2

[Q] Accidentally un-rooted my phone through /system format in CWM. Help re-rooting?

1. I stupidly selected "format /system" in CWM in preparation for flashing a new ROM.
2. Soft bricked my phone, put new ROM (slim bean 4.3beta) on SD card and flashed it successfully.
3. Everything works great, I still have CWM and slimbean is awesome but, I don't have root access. I don't know how to get it without reflashing everything (and at this point I don't know if that'll do anything)
Is there a simple way to permanently re-obtain root access? Thank you.

If it's a 4.3 ROM you'll need to flash chainfires newest su , don't have the link but you can find them throughout xda or Google search
Making the iPhone jealous one user at a time.

You can also go into settings development and enable root for apps and add on 4.3 the usually just add is enabled when first flashed on 4.3
Sent from my SGH-I747M using Tapatalk 4

silentsandwich said:
1. I stupidly selected "format /system" in CWM in preparation for flashing a new ROM.
2. Soft bricked my phone, put new ROM (slim bean 4.3beta) on SD card and flashed it successfully.
3. Everything works great, I still have CWM and slimbean is awesome but, I don't have root access. I don't know how to get it without reflashing everything (and at this point I don't know if that'll do anything)
Is there a simple way to permanently re-obtain root access? Thank you.
Click to expand...
Click to collapse
I don't know why formatting system would soft brick? I always wipe data/factory reset, wipe cache and dalvik, then go into mounts and storage and format system, data, and cache, just to be sure of a super clean install and I have never had an issue??

jimchee said:
You can also go into settings development and enable root for apps and add on 4.3 the usually just add is enabled when first flashed on 4.3
Sent from my SGH-I747M using Tapatalk 4
Click to expand...
Click to collapse
Wow, do I feel stupid after reading this. Thank you so much!

DMF1977 said:
I don't know why formatting system would soft brick? I always wipe data/factory reset, wipe cache and dalvik, then go into mounts and storage and format system, data, and cache, just to be sure of a super clean install and I have never had an issue??
Click to expand...
Click to collapse
I'm not totally sure about it either to be completely honest. It was confusing so I just put a new ROM on my exsd and went ahead that way.

[Q] Ready - kinda

OK - so I have my T-Mobile s3 that was rooted with CSRom (some version...)... and... I'm needing to move to the newest stable Dandroid (4.6?).
What I've done so far is:
1. Backed up calendars/contact onto Gmail.
2. Used Titanium to do backup of app/data to SD - and the the my PC
3. Did a Nandroid backup using GooManager via TWRP.
So, what's next? I've forgotten all I BARELY learned about this stuff well over a year ago.
My thinking is I've got to:
1. Do a FULL WIPE. I'm trying to follow the instructions from here:
http://androidforums.com/galaxy-s2-...l-wipe-whats-big-deal-steps-take-15-mins.html
- in doing this, am I bascially doing a factory format? if so, after this step I'll have what? - a 'blank slate" (don't know what to call it) ... that is a phone LACKING samsungs newest software for the phone (I've not kept up I don't even know what the newest one is called, Gingerbread? Cowpile? Cockroach?)... anyhow, the factory format just cleans off everything or does it clean off AND put on the newest S3 software? And if it puts on the newest... WHERE... to I get that software from? Is part of the facotry format an OTA update or such?
My guess is - tell me if I'm right- the factory format just blanks everything out - then I have to hook up my phone to my computer and use ODIN3 to install a stock rom that I get from somewhere? if so - again - where from?
2. Install the stock software using ODIN.
3. Reboot into stock... then shut down.
4. Boot into TWRP using the 3 button method... and wipe the phone again including the cache.
5. Reboot via TWRP to custom recovery.
6. From here I think I should load Dandroid 4.6 something which I now have on my PC. what I don't know is how to get Dandroid visible to TWRP so I can tell it to install it for use. Do I just unzip the Dandroid file and copy if over the my SD card or what?
7. Then flash Dandroid and reboot into it.
8. Use Titanium to reinstall my apps and data.
I'm sure I've got lots of steps wrong and maybe wrong apps to use too.
I'm generally trying to follow this guide:
http://forum.xda-developers.com/showthread.php?t=2124754
but having to google all over the place to try and figure out what is involved in doing each step fo the guide.
So, tell me where I've gotten it wrong so I can take the next steps...
and please keep it simple as I've forgotten everything... or more accurately - remember just enough to totally mess up my phone.
TIA

jtiis said:
OK - so I have my T-Mobile s3 that was rooted with CSRom (some version...)... and... I'm needing to move to the newest stable Dandroid (4.6?).
What I've done so far is:
1. Backed up calendars/contact onto Gmail.
2. Used Titanium to do backup of app/data to SD - and the the my PC
3. Did a Nandroid backup using GooManager via TWRP.
So, what's next? I've forgotten all I BARELY learned about this stuff well over a year ago.
My thinking is I've got to:
1. Do a FULL WIPE. I'm trying to follow the instructions from here:
http://androidforums.com/galaxy-s2-...l-wipe-whats-big-deal-steps-take-15-mins.html
- in doing this, am I bascially doing a factory format? if so, after this step I'll have what? - a 'blank slate" (don't know what to call it) ... that is a phone LACKING samsungs newest software for the phone (I've not kept up I don't even know what the newest one is called, Gingerbread? Cowpile? Cockroach?)... anyhow, the factory format just cleans off everything or does it clean off AND put on the newest S3 software? And if it puts on the newest... WHERE... to I get that software from? Is part of the facotry format an OTA update or such?
My guess is - tell me if I'm right- the factory format just blanks everything out - then I have to hook up my phone to my computer and use ODIN3 to install a stock rom that I get from somewhere? if so - again - where from?
2. Install the stock software using ODIN.
3. Reboot into stock... then shut down.
4. Boot into TWRP using the 3 button method... and wipe the phone again including the cache.
5. Reboot via TWRP to custom recovery.
6. From here I think I should load Dandroid 4.6 something which I now have on my PC. what I don't know is how to get Dandroid visible to TWRP so I can tell it to install it for use. Do I just unzip the Dandroid file and copy if over the my SD card or what?
7. Then flash Dandroid and reboot into it.
8. Use Titanium to reinstall my apps and data.
I'm sure I've got lots of steps wrong and maybe wrong apps to use too.
I'm generally trying to follow this guide:
http://forum.xda-developers.com/showthread.php?t=2124754
but having to google all over the place to try and figure out what is involved in doing each step fo the guide.
So, tell me where I've gotten it wrong so I can take the next steps...
and please keep it simple as I've forgotten everything... or more accurately - remember just enough to totally mess up my phone.
TIA
Click to expand...
Click to collapse
You've overcomplicated the process quite a bit: Factory reset wipes /data (ALL your downloaded apps + ALL app and system settings, even ones you didn't download) and /cache. The ROM remains, but it is a "fresh start"
If you want to go back to TouchWiz (Dandroid), do this:
1) Reboot into TWRP.
2) Wipe > advanced: System, dalvik cache, data, cache.
3) Flash Dandroid.
4) Done.
Do not restore any system app data (if you backed it up). Only user app data. And if it's acting funny, wipe the app's settings.
By the way, Android releases are named after yummy treats. Mmmmm cockroach.

so
Simpler sounds better to me. Just to clarify though - do I need to to a factory wipe and then follow your steps 1-4... or... just 1-4?
My goal is mostly to get my BT working with my new car stereo CSRom wasn't agreeing with this idea. And, to have the ability to tether to my ipda. Dandroid will let me do this right?
Thanks...
Aerowinder said:
You've overcomplicated the process quite a bit: Factory reset wipes /data (ALL your downloaded apps + ALL app and system settings, even ones you didn't download) and /cache. The ROM remains, but it is a "fresh start"
If you want to go back to TouchWiz (Dandroid), do this:
1) Reboot into TWRP.
2) Wipe > advanced: System, dalvik cache, data, cache.
3) Flash Dandroid.
4) Done.
Do not restore any system app data (if you backed it up). Only user app data. And if it's acting funny, wipe the app's settings.
By the way, Android releases are named after yummy treats. Mmmmm cockroach.
Click to expand...
Click to collapse

jtiis said:
Simpler sounds better to me. Just to clarify though - do I need to to a factory wipe and then follow your steps 1-4... or... just 1-4?
My goal is mostly to get my BT working with my new car stereo CSRom wasn't agreeing with this idea. And, to have the ability to tether to my ipda. Dandroid will let me do this right?
Thanks...
Click to expand...
Click to collapse
Factory reset wipes /data and /cache. So, either factory reset, or wipe /data and /cache from within the advanced wipe menu. But you still need to wipe /system.

[Q] CWM Wipe Data \ Factory Reset wipes everything

So I use to install custom roms all the time with no issues, but on my last two android phones I have to Wipe Data / Factory Reset, Wipe Cache, Wipe Dalvik Cache and every time it wipes the OS, then I have to re-flash. I have done the following.
- Unlocked Phone
- Rooted Phone
- Flashed CWM Recovery
- Create Backup...Can only use this once I re-flash the phone,
Xperia Ion JB
I miss custom rom's lol, any idea`s...

Resolved!!!
This is how I have to do this and still not sure why, but I'm a rookie so...
- Root Device
- Install Rom Manager (Fix Permissions) - Reboot
- Install Busybox Application (Install with Smart Install)
- Install CWM Recovery
if I don't follow this exactly the wipe data deletes everything and I have to re flash.

Vedrick said:
So I use to install custom roms all the time with no issues, but on my last two android phones I have to Wipe Data / Factory Reset, Wipe Cache, Wipe Dalvik Cache and every time it wipes the OS, then I have to re-flash. I have done the following.
- Unlocked Phone
- Rooted Phone
- Flashed CWM Recovery
- Create Backup...Can only use this once I re-flash the phone,
Xperia Ion JB
I miss custom rom's lol, any idea`s...
Click to expand...
Click to collapse
Have u tried "format data, cache" in mounts and storage instead of wipe? i think u might hv messed with cwm.. or may be the cwm version isn't for ub? hv u checked that? tried other versions of cwm?
Sent from my LT26i using XDA Premium HD app