[Q] why do i have to wipe when installing a new rom? - G2 and Desire Z Q&A, Help & Troubleshooting

well, i was wondering why? i just got my phone rooted, have bacon bits on it, and stuff is just so awesome
anyhow, i want to try a different rom but in all of them they tell me that i have to wipe the device and i assume my contacts, photos, music, installed apps and all that would be gone. so why does the device needs top be wiped? what happens if i do it without wiping?
thanks!

Try it and report back. Or just use titanium and back everything up. Or!!! Just do a backup of your current rom and you can revert back to that rom with all the data and apps saved from that point.

ddgarcia05 said:
Try it and report back. Or just use titanium and back everything up. Or!!! Just do a backup of your current rom and you can revert back to that rom with all the data and apps saved from that point.
Click to expand...
Click to collapse
well i just used rom manager to back up the current rom, that should do it, i will just jump into this

also does the back up i just did with room manager counts as a nandroid backup?

I'm noob to android, but once i rooted my phone. I tried installing the desire Z rom without wiping it first. And oh man, when I turned on my G2.... errors left right and center. So many force closes that I couldn't even open the app drawer.
Finally I got the phone off and I wiped the phone first, then re-installed the rom. No errors.
I think wiping the phone just provides less duplication of information on the phone.

Awesome
Thanks!
Btw is nandroid needed? Or it can be done with room manager tool to back up the current room?
Sent from my T-Mobile G2 using XDA App

Related

titanium backup + damagecontrol 3.1.2 wont restore apps

Running DC 3.1.2 and a netarchy's 5 pt multi touch/fps fix kernel, Paid version of titanium backup.
I've fixed permissions
verified backups
installed app, apps + data, apps + system data
When i attempt to restore any app i've backed up on the sd card via titanium backup it wont restore them. It goes through, acts like it installed but when i reboot the phone and do the above mentioned things it just doesnt show up...
I should mentioned i came from stock rooted EVO 4G 1.3x ROM
Anyone ever heard of this problem before?
bump, anyone?
ANother thing its now doing is i was able to get the apps to show up in market, however they show as installed... until i click on the app then it asks me to install it.
Friggin weird.
anyone at all?
That's a weird one. I've been using Titanium quite a bit lately with no problems. You might just have to wipe and start over. Have you tried uninstalling / reinstalling Titanium? Its also possible there's a problem with your SD card. Do you have another one you could test with?
Did you go into settings / applications and put a check in the unknown sources box?
.....
Frank...
yes unknown sources is checked.
SD card as far as i know has no problems, ill try with a new one.
Thanks for the info.
im having the same problem. i have unknown sources checked, reflashed a couple times, and have even re-rooted. it works perfectly in both fresh and OMJ, but DC just fails. if you install the apps manually and then do a restore of app+data, it will restore the data properly, but it fails when you try to install from the backup.
-phil
ndboost said:
Running DC 3.1.2 and a netarchy's 5 pt multi touch/fps fix kernel, Paid version of titanium backup.
I've fixed permissions
verified backups
installed app, apps + data, apps + system data
When i attempt to restore any app i've backed up on the sd card via titanium backup it wont restore them. It goes through, acts like it installed but when i reboot the phone and do the above mentioned things it just doesnt show up...
I should mentioned i came from stock rooted EVO 4G 1.3x ROM
Anyone ever heard of this problem before?
Click to expand...
Click to collapse
Same problem here...Fresh, Calkulin's EviO, Baked Snack, and Toasted Delight ROMs have all been able to restore just fine using Titanium Backup.
It's too bad...I really wanted to try DCs ROM, but I'm not gonna go through installing all my missing apps and setting up all the screens again.
Has anyone found a way to fix this yet?
MyRCode said:
Same problem here...Fresh, Calkulin's EviO, Baked Snack, and Toasted Delight ROMs have all been able to restore just fine using Titanium Backup.
It's too bad...I really wanted to try DCs ROM, but I'm not gonna go through installing all my missing apps and setting up all the screens again.
Has anyone found a way to fix this yet?
Click to expand...
Click to collapse
Just make a nandroid backup, wipe, and try out DC 3.2.3 yourself. 99% chance everything will be fine.
cloud858rk said:
Just make a nandroid backup, wipe, and try out DC 3.2.3 yourself. 99% chance everything will be fine.
Click to expand...
Click to collapse
The problem isn't loading the ROM. I'm able to install DC after doing a full wipe...it seems to be the only ROM that causes problem when trying to do a full Titanium Backup restore.

[Q] ROM change question from a still apparent newbie...

I've been running stock rooted 3.29 deodexed.
Finally decided to try out Myns Warm 2.2 today. Did a Titanium backup and a nand backup, flashed the new ROM. I wasn't expecting all my widgets, apps and homescreen settings to remain intact. Obviously I was pleasantly surprised when they were.
Two questions:
1) Is this normal behavior for any ROM (e.g., CM6) or just because Warm2.2 is a Sense-based ROM? How did it even know all my homescreen settings? Did Titanium restore them without my asking? (Yes I know that's three questions in one, sorry)
2) Why were all my homescreen icons/widgets doubled up on top of eachother?
I know these are probably basic questions but just based on everything I've read I was expecting to have to install Ti backup, restore my apps, and then re-setup my homescreens. So this was just really surprising to me.
Just noticed that it also retained the flash that I applied for the 4-in-1 reboot mode (hot reboot, recovery, etc). Color me confused.
Shane112358 said:
I've been running stock rooted 3.29 deodexed.
Finally decided to try out Myns Warm 2.2 today. Did a Titanium backup and a nand backup, flashed the new ROM. I wasn't expecting all my widgets, apps and homescreen settings to remain intact. Obviously I was pleasantly surprised when they were.
Two questions:
1) Is this normal behavior for any ROM (e.g., CM6) or just because Warm2.2 is a Sense-based ROM? How did it even know all my homescreen settings? Did Titanium restore them without my asking? (Yes I know that's three questions in one, sorry)
2) Why were all my homescreen icons/widgets doubled up on top of eachother?
I know these are probably basic questions but just based on everything I've read I was expecting to have to install Ti backup, restore my apps, and then re-setup my homescreens. So this was just really surprising to me.
Click to expand...
Click to collapse
Hi there...well, as a noob myself I have learned that when you flash any NEW ROMS from different developers, you MUST wipe DATA, CACHE & DAVLIK/CACHE 1st. If you are upgrading from Myn Warms 2.2 3.29 OTA to 3.30 then you usually don' have to unless they tell you to. That's why your icons/widges are doubled up. Can't go from Stock rooted ROM to Myns...different development.
It will wipe everything on your system and install the ROM brand new as if you bought your phone that way. Items in your SD card will remain there...it does not wipe that. The NAND backup is good if for some reason your EVO goes haywire you can just do the old fashion Bootloader and go into recovery and get everything back. (I actually do this once a week just incase I need to go back to a place when my EVO was perfect...I delete any old ones so that I don't get confused.)
Once you flash the new ROM then go into titanium back up and restore everything. I use Mybackup Pro (Free for 30days to try out)...it saves my home/android screen so That I don't have to reset everything I have except for login into my POP mail server. Not a fan of Titanium but a lot of people seems to like it.
You may need to restore your Evo to that NAND you just did, then WIPE...then flash Myns. Also Myns ROM has the 4-1 reboot. I hope this helps...
Well that explains the 4-in-1 but I did wipe my cache and dalvik cache twice before flashing Warm2.2. I was not on Warm2.2 so this was a change from stock to Warm2.2. So I still don't see how all my settings were retained.
I'm not looking for a "clean" install of Warm2.2 - I'm merely trying to understand why it happened this way when I thought that it wasn't supposed to, and if this behavior is normal.
And just out of curiosity why don't you like Ti backup? I've always wondered if it really serves any good purpose since it seems like Nand backups all my apps anyways....?
Shane112358 said:
Well that explains the 4-in-1 but I did wipe my cache and dalvik cache twice before flashing Warm2.2. I was not on Warm2.2 so this was a change from stock to Warm2.2. So I still don't see how all my settings were retained.
I'm not looking for a "clean" install of Warm2.2 - I'm merely trying to understand why it happened this way when I thought that it wasn't supposed to, and if this behavior is normal.
Click to expand...
Click to collapse
Unfortunately you will need to do a clean install when you go from one ROM to another. Even if the other ROM is a rooted stock ROM...still someone's ROM they created with the stock OTA.
You have to wipe DATA too, no way around it....because the system is rooted and different developers change the path to what they want to do with their ROM you can't flash MYNS on top of someone else's rooted stock ROM. It will conflict with one another (hence the overlapping of icons/widgets). That's why they created apps like Titanium and Mybackup Pro because it will be like a clean phone you just bought and instead of taking hours to set up your phone again...do a restore from one of the programs and you will be up and running with the new ROM.
I love Myn's ROM...
Shane112358 said:
And just out of curiosity why don't you like Ti backup? I've always wondered if it really serves any good purpose since it seems like Nand backups all my apps anyways....?
Click to expand...
Click to collapse
The way I view NAND backup is like a system restore on your PC. I don't use it unless I want to make sure there is a good location for me to go back to just in case my EVO acts up.
I tried titanium backup...visually it doesn't give me confidence as a noob...mybackup pro is very simple and does its purpose.
honeyBfly said:
Unfortunately you will need to do a clean install when you go from one ROM to another. Even if the other ROM is a rooted stock ROM...still someone's ROM they created with the stock OTA.
You have to wipe DATA too, no way around it....because the system is rooted and different developers change the path to what they want to do with their ROM you can't flash MYNS on top of someone else's rooted stock ROM. It will conflict with one another (hence the overlapping of icons/widgets). That's why they created apps like Titanium and Mybackup Pro because it will be like a clean phone you just bought and instead of taking hours to set up your phone again...do a restore from one of the programs and you will be up and running with the new ROM.
I love Myn's ROM...
Click to expand...
Click to collapse
Yeah I think I discovered your point. Myns ROM works flawlessly going from stock to Myns without a data wipe. But I just put on CM6 and had several FC and launcher problems. For some reason I never thought that wipe also meant data wipe...I was probably just trained by all the mod flashes I've been doing....
Shane112358 said:
Yeah I think I discovered your point. Myns ROM works flawlessly going from stock to Myns without a data wipe. But I just put on CM6 and had several FC and launcher problems. For some reason I never thought that wipe also meant data wipe...I was probably just trained by all the mod flashes I've been doing....
Click to expand...
Click to collapse
I was always told to wipe everything when flashing one ROM to the next. But only wipe cache & Davlik/cache if your flash themes...Kernels or different MODS.
Two questions for you two since you both seem to know what you're doing
1. Did either of you use the special recovery images? (Clockwork/AmonRA)
2. I backup everything to Titanium Backup Pro...but if i wipe EVERYTHING that means Titanium Backup Pro will be gone as well...so how am I supposed to get everything restored if the app is gone?
1) Not sure, I use clockwork recovery but don't know what a special recovery image is.
2) My understanding is that you have to reinstall Ti backup, and whence forth it will find the old restore files that you can use to restore your apps.
Whenever installing a new rom it is best to do a FULL wipe meaning data,cache, and davlik. Even though there may not be any problems initially upon use, there will likely be some down the road. It's your phone though, do as you please.
Sent from my PC36100 using XDA App
RTC88 said:
Whenever installing a new rom it is best to do a FULL wipe meaning data,cache, and davlik. Even though there may not be any problems initially upon use, there will likely be some down the road. It's your phone though, do as you please.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
So I did a full wipe last night and installed CM6. It installed just fine but my data didn't work....kept telling me that I didn't have a SIM installed. I could make phone calls though. I'll have to try again tonight but I did a restore so I had a functional phone today. Any idea why that happens?
Also I did a full backup with My Backup Pro so I'm assuming I can just reinstall My Backup Pro and it will find my backed-up data for restoration?
Could be a network problem on sprint's side.
Sent from my PC36100 using XDA App
R1pTheJacka said:
Two questions for you two since you both seem to know what you're doing
1. Did either of you use the special recovery images? (Clockwork/AmonRA)
2. I backup everything to Titanium Backup Pro...but if i wipe EVERYTHING that means Titanium Backup Pro will be gone as well...so how am I supposed to get everything restored if the app is gone?
Click to expand...
Click to collapse
1. Yes...AmonRA.
2. When you use an APP like Titanium and Mybackup Pro...it saves your backup to your SD card and a full wipe does not wipe external memory cards only internal system stuff. So once you wipe and flash a new ROM...you need to go to market first and foremost to download whichever backup program you used and then order it to restore your phone. It will know the path in which it used to back everything up and pull from there. Follow the prompts.

[Q] recovering data after custom rom?

quick question, is there anything wrong with going back into cwm after i flash say unofficial cm and flash my data back for apps n what not? or is this gonna be conflicting for some reason? im jus trying to figure out how you guys bounce thru roms so easily. thanks
wait for someone else to confirm this but i think as long as the backup is from the same type of ROM(sense or not) then you may be able to perform an advanced restore and get the data, but personally i have not needed to try this as the google restore feature seems to work fine, and i don't mind having to re-setup the options in my apps each time.
also you can always try not wiping the phone when you update, then your data is still there and you will only need to wipe if you get stuck in a boot loop or something is acting funny.
obviously you should still have a backup of your phone in working condition or else you could ens up seriously boned
The entire reason you're supposed to wipe the user data before flashing a different type of ROM is because the data is incompatible and it could cause crashes/freezes. So if you flash back the data after you're done, then you're defeating the purpose of wiping the user data, thus possibly making the ROM unstable again.
gotcha. thanks for the response.
Sent from my T-Mobile G2 using XDA App
You should be able to use titanium backup to do this for all downloaded apps.
sundar2012 said:
You should be able to use titanium backup to do this for all downloaded apps.
Click to expand...
Click to collapse
Am I understanding this right? If I have everything setup the way I want it, apps dl'd and on whatever homescreen, settings set and so on and I use Titanium Backup, then flash a custom rom, say like CM 6.1, I can use Titanium Backup to put everything back layout wise the way I had it without having to redl apps and redo settings?

[Q] nandroid restore: does it remove the custom rom and replace it with stock?

Might be a pretty basic qtn but heres the deal.
I took a nandriod backup of dk28 (no root) and then flashed it with nebula rom. Now since the rom was new, all my data/contacts/apps etc are gone obviously.. I am wondering if I did a restore of the nandroid restore, will it restore all that (ie sms/email/contacts/data/apps) or is it used to go back to stock rom only, ie it will remove my custom rom and put back the stock as it was pre flashing nebula?
All I need is a way to keep the custom rom but also restore my sms/email/apps etc.
Thanks!
hardrock121 said:
Might be a pretty basic qtn but heres the deal.
I took a nandriod backup of dk28 (no root) and then flashed it with nebula rom. Now since the rom was new, all my data/contacts/apps etc are gone obviously.. I am wondering if I did a restore of the nandroid restore, will it restore all that (ie sms/email/contacts/data/apps) or is it used to go back to stock rom only, ie it will remove my custom rom and put back the stock as it was pre flashing nebula?
All I need is a way to keep the custom rom but also restore my sms/email/apps etc.
Thanks!
Click to expand...
Click to collapse
It will restore everything excatly how it was when you saved it. Including your Texts/Mail etc that were in your inbox at the time you saved. You are basically going back to the exact point where you saved. You can create backups for every rom you have, it is not just for putting your phone back to stock. I always back up stock first, so I can always go back if needed.
Thanks Heelfan71..I understand it puts back everything as it was .. but will I loose my custom rom after that is my question.
hardrock121 said:
Thanks Heelfan71..I understand it puts back everything as it was .. but will I loose my custom rom after that is my question.
Click to expand...
Click to collapse
If you restore your backup? Yes you will loose your custom rom, unless you make a backup of that too (this is what I do). So you can go back and forth between the 2 if needed. Is that what you were wondering?
basically i want to switch back and forth the roms but keep my data intact.. right now after flashing the new rom.. i have obviously lost all my sms/emails/apps etc.. is there a one click solution which will restore all my data on every new rom i install?
edit: Also , I did take a titanium backup before I flashed the new rom.. but i didnt do a complete (ALL) backup, since I couldnt find a option to backup all. I had to choose each service/app/etc to backup.. so I ended up backing up all the stuff that I understood..but restoring them hasnt restored my sms/email data yet.
Do an advanced restore->restore /data in cwm.
I've had pretty good luck keeping my contacts, apps, and settings this way. Some people see weird force close issues after restoring /data. Check it out and see if it works for you.
thaniks.. i ll give it a try .. i thought about it.. but wasnt sure what exactly it does.
did that .. now that removed the rom manager and spare parts.. not sure what else it did.. but it did bring everything sms/apps/emails back ..
i guess i can install rom manager from the market..
If you only restore data your custom rom will stay. It will only restore your apps and app data. If you are restoring data from a rom on the same file system, you should be fine.
In other words, flashing VIPERrom 4.0.3 EXT4, then backing up, then flashing Bonsai 1.1.4 on RFS, then restoring data is not a good idea.
@ryno502 makes sense....thats what i did and it did restore everything.. Thanks!
now i ve to find some good widgets and lockscreen changes..
Nandroid restore on Custom ROM
I own a Xperia Arc(LT 15i)..rooted,unlocked...
I have Cyanogenmod, stable version running on my phone now...
I had taken a nandroid backup using CWM Auto-installer...
But now I wanna know how can i restore my apps that i had with Stock ROM...i tried a advanced backup on /data alone but then, its not booting up if i do so...
Please help..
Xperia?
Your data is incompatible with CM. You will need to download apps again unless you have a Titanium Backup.
Sent from my PantechP4100 using xda premium

[Q] Proper backup help

I am running Virtuous and it is running smooth as butter, but I would like to try one of the CM7 nighly, and want to be able to go back if need be with out hours of work. I am running clockwork recovery and rom manager, and also have titaium back up installed. Phone is rooted with s-off. Can I just run a back up from rom manager do a complete wipe and install CM7. I also need to update hboot from .79 to .92 should this be done prior to the rom manager back up. Should CM7 not work out how do I restore back? Thanks
Yeah just nandroid (which means backing up the rom and all your settings) and you can go back at any time. In Rom manager just go to Backup current Rom and you will always have a copy of your setup EXACTLY as it is.
You can update HBOOT whenever you want, it really doesn't matter when you do it. Once you do it will stay that way.
Correct me if I'm wrong, but doesn't doing a nandroid backup essentially make a complete clone of your entire phone that you can restore later?
eman5oh said:
I am running Virtuous and it is running smooth as butter, but I would like to try one of the CM7 nighly, and want to be able to go back if need be with out hours of work. I am running clockwork recovery and rom manager, and also have titaium back up installed. Phone is rooted with s-off. Can I just run a back up from rom manager do a complete wipe and install CM7. I also need to update hboot from .79 to .92 should this be done prior to the rom manager back up. Should CM7 not work out how do I restore back? Thanks
Click to expand...
Click to collapse
Okay, here's what you to do back up:
1. Back up your apps with Titanium Backup - DO NOT BACK UP PHONE DATA. Backing up data for games (e.g. Angry Birds) is fine, but don't back up contacts or Gmail or anything that's going to be included in your new ROM. Reason is, when you restore everything (more on that later), you don't want to have conflicting data screwing things up.
2. Make a nandroid using ROM Manager. Just go to where it says backup current rom, and let it do it's magic. You can (and should) rename it to something you can remember. DO NOT USE SPACES. I like to name mine with the date, ROM name, and version number (e.g. 2-3-11_Virtuous_3.1.0)
3. After the backup finishes, install the new ROM - I always do this through ROM Manager.
4. When CM7 is finished installing, download Titanium Backup and restore your apps using the batch operation - it's a lot simpler than trying to find all your apps and download/install them yourself
5. To go back, simply click "Restore Backup" in ROM Manager and pick Virtuous and all your hard work will be restored
Enjoy!
I've had lots of trouble with ROM manager not restoring or backing up my current ROM properly.....it'll always say that the installation was aborted or say the file is corrupt
Sent from my ADR6300 using XDA App
AlpineM3 said:
I've had lots of trouble with ROM manager not restoring or backing up my current ROM properly.....it'll always say that the installation was aborted or say the file is corrupt
Sent from my ADR6300 using XDA App
Click to expand...
Click to collapse
How much free space is left on your card? Format and try it with a clean card. I have never had a problem with it restoring anything of mine.
Zoon0n said:
Okay, here's what you to do back up:
1. Back up your apps with Titanium Backup - DO NOT BACK UP PHONE DATA. Backing up data for games (e.g. Angry Birds) is fine, but don't back up contacts or Gmail or anything that's going to be included in your new ROM. Reason is, when you restore everything (more on that later), you don't want to have conflicting data screwing things up.
2. Make a nandroid using ROM Manager. Just go to where it says backup current rom, and let it do it's magic. You can (and should) rename it to something you can remember. DO NOT USE SPACES. I like to name mine with the date, ROM name, and version number (e.g. 2-3-11_Virtuous_3.1.0)
3. After the backup finishes, install the new ROM - I always do this through ROM Manager.
4. When CM7 is finished installing, download Titanium Backup and restore your apps using the batch operation - it's a lot simpler than trying to find all your apps and download/install them yourself
5. To go back, simply click "Restore Backup" in ROM Manager and pick Virtuous and all your hard work will be restored
Enjoy!
Click to expand...
Click to collapse
Am I asking for trouble when backing up apps via titium, and switching roms? I thought that I read that somewhere? I have used app brain to do the restores, but it is a little slow. Also Thanks to everyone for the replies.
I've read that the newer versions of Clockwork are troublesome....anything after 2.5.05. I just went in and erased any previous ROM's that I don't use anymore to free up valuable space on the SD card. Hopefully it works, but the message error i've been getting......well not a message error, but my phone seems to freeze up while developing MD5sum. I read to leave it alone and it might take 10 min's actually, but just want to confirm this is true. Thanks.
g00s3y said:
How much free space is left on your card? Format and try it with a clean card. I have never had a problem with it restoring anything of mine.
Click to expand...
Click to collapse
AlpineM3 said:
I've read that the newer versions of Clockwork are troublesome....anything after 2.5.05. I just went in and erased any previous ROM's that I don't use anymore to free up valuable space on the SD card. Hopefully it works, but the message error i've been getting......well not a message error, but my phone seems to freeze up while developing MD5sum. I read to leave it alone and it might take 10 min's actually, but just want to confirm this is true. Thanks.
Click to expand...
Click to collapse
I use 2.5.1.2 and have never personally had any problem, sorry.
eman5oh said:
Am I asking for trouble when backing up apps via titium, and switching roms? I thought that I read that somewhere? I have used app brain to do the restores, but it is a little slow. Also Thanks to everyone for the replies.
Click to expand...
Click to collapse
I've gone from Stock to Virtuous to MIUI to CyanogenMod and I can say definitively that I have never had any problems with Titanium backing up/restoring apps. You are asking for trouble if you try to back up system data and restore it for ROM's that they were never intended for - just back up the apps you downloaded from the market/installed yourself and you'll be fine
So here is what I did,
1 Did a Rom back up from Rom manager
2 Backed up user apps with Titanium Pro
3 Updated Clock Work Mod to 2.5.1.2
4 Flashed Hboot from .79 to .92
This is were ran into a problem, after hboot flashed it just went into a boot loop were all I could do is go into hboot or clock work recovery but that is it phone would not boot. I searched a little and read that hboot wipes the kernal and that is why it will not reboot. I then went into clockwork and restored the rom I backed up in step 1, and it worked like a charm. Thought I would share so any one else who runs into this. Now off to flash cm7!
Rocking CM7 now, Thanks for all the help and advice from everyone. The Android community rocks.

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