task 29 vs CWM wipes - HD2 Android Q&A, Help & Troubleshooting and Genera

I'm still a noob with this, but I've read that I should always do a clean wipe before installing a new ROM. I remember doing task 29 way back, and I was wondering what the difference was between these two and which is better.

CWM wipes are suppose to be sufficient to install a new Android ROM and not have issues. But you have to do a full wipe which means doing a wipe of your data partition, cache partition, system partition, and boot partition. Also you have to go to advanced and wipe your Delvik cache, this is a full wipe.
I personally still run a Task 29 as I know it wipes every thing plus it re formats your NAMD memory too. But that is just me.
Remember this and it might help you out. Now remember this is a very generalized description.
Data is your personal information.
Cache is your settings and any other cached information.
System is your ROM
Boot is your Lenuix kernel
Now you will probably get a different answer from nearly everyone as it really is a personal preference I think.

Hi
You are correct in that you should wipe your phone clean before installing a new ROM.
I usually wipe data, partition, and dalvik in cwm then install new ROM, and this is generally enough.
I did, however, read somewhere that too many task 29 will eventually damage your phone, but don't quote me on that...
Save your task29 for when you encounter problems with a new ROM and you want to go back and do a thorough clean.
Edit:
HA HA T-Macgnolia you beat me to it.
Curse my slow typing
Sent from my HTC HD2 using XDA Premium App

malybru said:
I did, however, read somewhere that too many task 29 will eventually damage your phone, but don't quote me on that...
Click to expand...
Click to collapse
I wish you could remember where you read this as I would be very interested in reading it. PM me if you remember it or come back across it.

Ah I see, thanks for the replies! Does doing a full wipe before installing a new ROM speed things up? I was trying out a bunch of ROMs and after opening a few programs things started to go really slow, but after I ran a task 29 and installed the same ROM from before I haven't noticed as many slow downs.

I have my HD2 over a year now and in that time ive only ever done one Task 29 and my phone is fine,CWM is fine for wiping when you are flashing a new build on your phone.

deletemyaccount said:
Ah I see, thanks for the replies! Does doing a full wipe before installing a new ROM speed things up? I was trying out a bunch of ROMs and after opening a few programs things started to go really slow, but after I ran a task 29 and installed the same ROM from before I haven't noticed as many slow downs.
Click to expand...
Click to collapse
The idea of wiping data ,partition and dalvik is to clear out all the old bits of data etc. from previous ROMS and therefore starting again with a clean slate.

Excellent info! I will "task29" mine before next flash!

DooDle78 said:
Excellent info! I will "task29" mine before next flash!
Click to expand...
Click to collapse
I just want to let you know if you run a Task 29 it will remove MAGLDR and CWM or cLK and CWM which ever one you use to boot Android. So you will have to reflash these when you run a Task 29.

DooDle78 said:
Excellent info! I will "task29" mine before next flash!
Click to expand...
Click to collapse
you really don't have to mate you can easily do all of that in CWM

Related

Apps Keep Appearing After Flash ... But I'm Not Connected.

I have been moving my Hero from Sense -> Vanilla.
But, after wiping, flashing, rebooting, there are some apps, like ASTRO, MyBackup, aNetShare, and Springpad, for example, that are already there after first boot.
And before anybody says that Android is backing them up, I'm not connected to any account!
How can this be?
It may already be installed in the ROM you flashed
I've found the same thing whilst benchmarking. I'll wipe everything flash a new rom to benchmark and the benchmark apps will install themselves on first boot. Something I'm as yet unable to explain. Having said that i've experienced no issues with this the two times it has happened (out of at least 10 different rom wipes) and all the apps have worked as they should.
sebxd said:
It may already be installed in the ROM you flashed
Click to expand...
Click to collapse
Is CMH 1.4.1 ROM. I do not think CMH has Springpad, and much less MyBackup Pro, does it?
btdag said:
I've found the same thing whilst benchmarking. I'll wipe everything flash a new rom to benchmark and the benchmark apps will install themselves on first boot. Something I'm as yet unable to explain. Having said that i've experienced no issues with this the two times it has happened (out of at least 10 different rom wipes) and all the apps have worked as they should.
Click to expand...
Click to collapse
Same here apps work fine. But that is not the point I'm getting crazy understanding where they are.
Did you wipe EXT as well?
wywywywy said:
Did you wipe EXT as well?
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Click to collapse
By EXT you mean Linux partition? Cause if that, i have no linux partitions on the card ... or not that i remember ... would have to check back if that is the case.
kwanbis said:
By EXT you mean Linux partition? Cause if that, i have no linux partitions on the card ... or not that i remember ... would have to check back if that is the case.
Click to expand...
Click to collapse
Should say "Wipe SD:Ext" in recovery. That's where all apps are installed if you use Apps2sd...
Full wipe usually means Data, Dalvik, Sd:Ext.
ante0 said:
Should say "Wipe SD:Ext" in recovery. That's where all apps are installed if you use Apps2sd...
Full wipe usually means Data, Dalvik, Sd:Ext.
Click to expand...
Click to collapse
I did a factory reset, dalvilk reset, but i did not do a SD:Ext, as i do not remember having a partition.
But now that you mention it, it could very well be the case.
I would check as soon as i get the phone home.
Thanks.

How to PROPERLY Flash a ROM

Since I have seen alot of individuals within ROM threads stating things such as, "Your ROM bricked my phone." or "I can't get your new ROM to install." decided to make this guide. Hopefully it will solve this issue and help educate people.
What not flasing correctly can do:
1. Cause your phone not to boot
2. Cause Force closes and issues
3. POSSIBLY Brick your phone (though I have not seen an Eris Brick yet)
We must also remember that:
1. The devs of these ROMs are NOT responsible for any damage to your phone
2. The devs spend alot of time with testing to make sure the ROM works.
3. A ROM will NOT always flash over a previous ROM
OK.. So onto the main topic..
assuming you are rooted and using AMON's Recovery. I suggest AMON's because Clockwork has had recent issues. Big thanks to AMON for this!
How to install a ROM properly:
1. Boot into recovery ( with either reboot to recovery option or powerdown and then holding volume up and power )
2. Goto Backup/Restore and do a NAND Back-Up
3. Do a data/factory wipe ( NOTE: if the dev says you can flash over an old version you dont NEED to do this, but if you don't do this and the ROM is not booting then I suggest you restart this process [minus the back-up] and do a data/factory wipe)
4. Do a Dalvik Wipe... 3 times (ALWAYS ALWAYS ALWAYS do this)
5. Flash ROM
6. Reboot and Wait ( after a Dalvik wipe and flashing ROMs first boot can take 3+ minutes to load... BE PATIENT )
More to Come...
If you could, please explain what a Dalvik flash does. Thanks in adavnce, and thanks for this thread. I've never had any issues flashing, but it's nice to see someone explain the basics....
MOS95B said:
If you could, please explain what a Dalvik flash does. Thanks in adavnce, and thanks for this thread. I've never had any issues flashing, but it's nice to see someone explain the basics....
Click to expand...
Click to collapse
"Dalvik cache is a program cache area for the program Dalvik. Dalvik is a java based virtual machine that is the bases for running your programs (the ones that have the .apk extension). In order to make access times faster (because there's not JIT (just in time) compiler installed by default), the Dalvik-cache is the result of Dalvik doing a optimization of the running program." - Taken From Android forums
Basically it analyzes the phone before it boots. Then it sees what apps you have and will use and assigns cache to them. This way they will load quickly and properly.
When you flash a new ROM apps can change, or if you do a data/factory reset those apps are gone. SO wiping the Dalvik allows it to rebuild itself for what YOU are using.
This is also good to do after cleaning out or removing many unused apps from the phone. I usually do it once a week AT LEAST.
With the exception of a 2.1 ROM running apps2sd on an ext partition, is there really any point to wipe Dalvik if you have just done a wipe data/factory reset (which also wipes Dalvik cache)? And what exactly is the point of wiping Dalvik three times - why is once not enough? Is there something wrong with Amon Recovery which prevents a full Dalvik wipe unless you do it more than once?
It certainly doesn't hurt to wipe Dalvik after a wipe data/factory reset, but it should be already wiped.
I'm still fairly new, but I've flashed quite a bit. I didn't know to wipe dalvik x3. that's an interesting bit of info. Any reason why? Thanks
lp4261 said:
I'm still fairly new, but I've flashed quite a bit. I didn't know to wipe dalvik x3. that's an interesting bit of info. Any reason why? Thanks
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Click to collapse
Safety reasons... personally I do factory then dalvik 3x then factory again and dalvik 3x again.
Sent from my ERIS using XDA App
I tried this and now I have a paper weight lol j/k
tazzpatriot said:
I tried this and now I have a paper weight lol j/k
Click to expand...
Click to collapse
My plan worked
Sent from my ERIS using XDA App
I believe the reason is that sometimes even after a wipe people have reported residual data in the cache, I personally don't do it three times but I do a wipe, dalvik, dalvik, wipe.
Its not going to hurt anything and it gives me piece of mind.
Delvaris said:
I believe the reason is that sometimes even after a wipe people have reported residual data in the cache, I personally don't do it three times but I do a wipe, dalvik, dalvik, wipe.
Its not going to hurt anything and it gives me piece of mind.
Click to expand...
Click to collapse
cool. Thanks for the good info.
x3? I do once before and once after. Frankly once before has been enough for me... though I suppose being safe has never hurt.
If the dalvik cache still won't clear after 3 times you can piss on your phone. That seems to really help.
in most cases once is enough but like I said, it's not likely to hurt anything to give it a couple of wipes to make sure all the junk data is cleared.
Let me put it this way...
I wont use a public toilet just by seeing it is clean... ill clean it like twice ...
This is why I dalvik 3 times lol
Sent from my ERIS using XDA App
icbeer said:
If the dalvik cache still won't clear after 3 times you can piss on your phone. That seems to really help.
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Click to collapse
I tried that today.. now my phone wont turn on... any fix?...
Jk
Sent from my ERIS using XDA App
It would be interesting for someone like Amon to comment on the need to wipe data or recovery more than one time. In my opinion, once is enough. I'm 100% confident than wipes #2, #3, and so on are wiping blank space...
hallstevenson said:
It would be interesting for someone like Amon to comment on the need to wipe data or recovery more than one time. In my opinion, once is enough. I'm 100% confident than wipes #2, #3, and so on are wiping blank space...
Click to expand...
Click to collapse
I personally and others have experienced residual data... so is three too much... maybe... but its safe... two might be a better choice... this guide was made to make sure you have no issues... therefore I said three times for safety... if you want to just do it once... be my guest
Sent from my ERIS using XDA App
At the risk sounding like an idiot, I must ask this:
You mention wiping the Dalvik once a week. When you do this wipe, do you replace it (flash) something over it? Or can you simply wipe then reboot.
Sent from my FroyoEris using XDA App
J&M said:
At the risk sounding like an idiot, I must ask this:
You mention wiping the Dalvik once a week. When you do this wipe, do you replace it (flash) something over it? Or can you simply wipe then reboot.
Sent from my FroyoEris using XDA App
Click to expand...
Click to collapse
Yep, just wipe and boot. After wiping dalvik, it will redo your app tree or configuration if you will, just clears all the current info and rebuilds it fresh.
Great thread, people still need it I guess
workshed said:
Yep, just wipe and boot. After wiping dalvik, it will redo your app tree or configuration if you will, just clears all the current info and rebuilds it fresh.
Great thread, people still need it I guess
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Click to collapse
Lol thanks buddy!
Sent from my ERIS using XDA App

wiping clean and rom changing

Wondering something here...when i wiped my device, i went thru rom manager and did the wipe device thing to wipe all user data to clear out CM7.0.
after that i installed virtuous to try it out, and i noticed in root explorer in the system>app folder, there were CM apk's in there. does virtuous use CM stuff in their roms?
if not, why would they show up even after a full wipe?
Also, has anyone here ever had issues changing from a non sense rom to a sense and back to non sense in a matter of 2 hours?
well, if they are any of the CM specific apps like:
CMparts or CMstats or CMwallpapers (I think there are a few more, can't remember off the top of my head), then it sounds like a case of a "format" that didn't actually format. you wouldn't be the first person to deal with this problem with rom mgr and CWM recovery.. it is known to be finnicky when it comes to formatting partitions (among other things ).
thankfully, we have a tool now that will give you a true, clean format of /system /data and /cache partitions without having to manually run the commands every time (like I know some of us have been doing).
if you are the kind of guy, like myself, who likes to perform a clean wipe between roms, I'd highly recommend downloading that and using it instead of the rom manager/CWM recovery options.
tackleberry said:
Also, has anyone here ever had issues changing from a non sense rom to a sense and back to non sense in a matter of 2 hours?
Click to expand...
Click to collapse
Can't answer your first question, but on my old Hero, I swapped from an AOSP ROM to a Sense ROM once almost every hour for a day because I couldn't make up my mind. Nothing bad happened to it and my father is using it now with no ill effects.
pmcqueen said:
well, if they are any of the CM specific apps like:
CMparts or CMstats or CMwallpapers (I think there are a few more, can't remember off the top of my head), then it sounds like a case of a "format" that didn't actually format. you wouldn't be the first person to deal with this problem with rom mgr and CWM recovery.. it is known to be finnicky when it comes to formatting partitions (among other things ).
thankfully, we have a tool now that will give you a true, clean format of /system /data and /cache partitions without having to manually run the commands every time (like I know some of us have been doing).
if you are the kind of guy, like myself, who likes to perform a clean wipe between roms, I'd highly recommend downloading that and using it instead of the rom manager/CWM recovery options.
Click to expand...
Click to collapse
yes i saw that program pop up when i was tying in the topic for this post! sounds like a great program wish it was posted a couple of days earlier lol. ill try when i get my device back.
wondering tho if these half ass wipes that CWM does caused my problems. i usually wipe when changing a type of rom, even with CM7 (nightly to RC for example). if i flash a nightly, i usually do a wipe every 2 nightlies.
Not sure what you mean by half ass wipes,lol, but I've never trusted the system wipe to do the job. I always do cache and dalvik along with it.
Sent from my HTC Vision using XDA App
enserio said:
Not sure what you mean by half ass wipes,lol, but I've never trusted the system wipe to do the job. I always do cache and dalvik along with it.
Sent from my HTC Vision using XDA App
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Click to collapse
i do too. half ass saying there is stuff not wiped lol
tackleberry said:
i do too. half ass saying there is stuff not wiped lol
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Click to collapse
Yeah... as amazing as CWM recovery is, the wipe process can be a bit.... lacking sometimes. If you don't use amazinglarry's superg2wipe script, then I would at least manually wipe through recovery before switching roms - this way you can be at least get most of the artifacts and "ghosts" left over from your last rom.
Sorry for bumping this old thread, I came across it while googling.
I've always used "wipe data/factory reset" in CWM. But that only wipes your /data and /cache partition.
Now, i only recently found out "wipe /system" under "mounts" in CWM. Meaning, I had never wiped my /system partition before, while swapping between 50 roms (be it AOSP or Sense). And I never had any problems. But the best way to fully wipe your system, is to do every partition manually + dalvik and battery stats.

[Q] Super Easy question hopefully - Master reset

Hey guys,
Been running HyperDroidGBX-v12 for a couple months now, its just rock solid stable & the best rom ever. But I'm selling my HD2 now and I need to know how to wipe my info.
I tried a master reset and it does nothing, just restarts and takes me back to my homepage.
Whats the trick?
A link or an explanation would be great. Thanks!
if i was you, i'd task 29, install radio, magdlr, recovery then flash the ROM again.
Can be sure 100% everything is wiped and new owner will be left with android on, nice and fresh and fast etc, but with all personal info wiped.
matt
matthew33 said:
if i was you, i'd task 29, install radio, magdlr, recovery then flash the ROM again.
Can be sure 100% everything is wiped and new owner will be left with android on, nice and fresh and fast etc, but with all personal info wiped.
matt
Click to expand...
Click to collapse
Whats task 29? And flashing radio, magdlr, recovery and rom all over again? Isn't that A bit excessive?
EyeAndroid said:
Whats task 29? And flashing radio, magdlr, recovery and rom all over again? Isn't that A bit excessive?
Click to expand...
Click to collapse
in android nand development thread there are some tools and instructions for these things.
EyeAndroid said:
Whats task 29? And flashing radio, magdlr, recovery and rom all over again? Isn't that A bit excessive?
Click to expand...
Click to collapse
how are you running the rom? if through clockwork thru magldr. go in clockwork and wipe dalvik cache and wipe cache to get it like when it first boots if you want to bring it back to factory like how its sold from the carrier than theres more instructions. if the latter is what you want ill point you in the right direction.
Thank you, I figured it out.

After Flashing New Rom, Settings are preset and apps already installed??

i started noticing that after i flashed a new rom, alot of my settings are set to the way i had them before. and some apps are already installed that would otherwise need a marketplace install..
keep in mind, i always do a wipe of cache/dalvik/sdcard
i think it started happening after i partitioned the sd card for those old sense roms that needed extra space.. cant remember..
but it seems like theres a portion of rom that isnt being wiped and all my settings are being carried over to the next rom flash..
how can i fully wipe my phone or get it back to normal?
this is weird, and i want it to stop. any ideas?
i just flashed back to amonra
TorxT3D said:
i started noticing that after i flashed a new rom, alot of my settings are set to the way i had them before. and some apps are already installed that would otherwise need a marketplace install..
keep in mind, i always do a wipe of cache/dalvik/sdcard
i think it started happening after i partitioned the sd card for those old sense roms that needed extra space.. cant remember..
but it seems like theres a portion of rom that isnt being wiped and all my settings are being carried over to the next rom flash..
how can i fully wipe my phone or get it back to normal?
this is weird, and i want it to stop. any ideas?
i just flashed back to amonra
Click to expand...
Click to collapse
Are you using ROMs that have Google back up enabled?
Also, if the zip isn't set to wipe /data and you're not wiping it then you'll still have all of your data.
That has happened to me too. Are you wiping sdext and android.secure in recovery. I always wipe those and haven't had that happen since I started doing that.
We're comin from a pure power source.
naw i turn off all that google backup stuff.
thats the thing, when i try to wipe sdext it gives me an error (from the last i remember doing it)
Hmmm. Latest version of amon ra?
We're comin from a pure power source.
keep in mind, i always do a wipe of cache/dalvik/sdcard
Click to expand...
Click to collapse
You should be wiping data as well when flashing new roms.
I flash vrsuperwipe everytime I flash, but I use Google backup, so when I flash a new sense ROM it saves a lot of my settings, and my SD-ext apps automatically appear. Good feature imo.
Sent from my PC36100 using Tapatalk
bump for any other answers or advice
thanks guise.
still wondering about other options before testing some new roms
same thing happened to me so I tried repairing sdext and then re-partitioned my card and left it ext2 instead of ext3,wipe data/cache/dalvik cache/system flash superwipe, then flashed rom. don't know which one worked but it stopped. Also I noticed it mainly happens when I flash 3.0 roms but it has happened on CM7 to
TorxT3D said:
i started noticing that after i flashed a new rom, alot of my settings are set to the way i had them before. and some apps are already installed that would otherwise need a marketplace install..
keep in mind, i always do a wipe of cache/dalvik/sdcard
Click to expand...
Click to collapse
You did not wipe data. If you do this you will preserve all of you apps (if they were not on card), data and system settings. This may work for you if the new ROM that you are moving to is similar enough. It can cause big problems if the structure of the ROMs is too different. You can end up with a phone that lags and has wakelocks (at best) or is not functional at all due force closes all over the place.
You should really wipe data as well before flashing a ROM and then do a selective restore of data on the new ROM.

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