Database Develop

[Q] Wipe Question

i wipe factory data and cache and dalv cache and still if i do this i get the same background i had like preveious versions of the rom....???
do wiping the phone really works??
to be more specific.... i used the cyanogen mod 6.0rc2 rom used a background with it i then wipe everything i can to try out a different rom works fine then went back to cyanogen mod night version or something it brings back the wallpaper i had use in older version roms i used???

I think thats a google backup/restore thing. If the image/wallpaper is available when the phone is reinstalled then it will restore the background.

[Q] Why clear Dalvik and cache?

So every single rom for any phone I've seen says to clear the dalvik and the cache (or maybe its just the "dalvik cache") but when I went from stock to Thriller, I forgot to, and nothing went wrong. In fact, all my settings and apps were all intact from the previous stock rom.
I've considered that the only other phone I'd done any flashing on was a backflip, without Apps2SD and maybe that's why all my apps and settings were intact, so that still leaves me with the question: why clear it?
This may be a noob-ish question, and I apologize. Thanks for any help!

Tyqar said:
So every single rom for any phone I've seen says to clear the dalvik and the cache (or maybe its just the "dalvik cache") but when I went from stock to Thriller, I forgot to, and nothing went wrong. In fact, all my settings and apps were all intact from the previous stock rom.
I've considered that the only other phone I'd done any flashing on was a backflip, without Apps2SD and maybe that's why all my apps and settings were intact, so that still leaves me with the question: why clear it?
This may be a noob-ish question, and I apologize. Thanks for any help!
Click to expand...
Click to collapse
If there are any compatibility issues between the apk dalvik cache of your previous rom and the apks on the new rom wiping dalvik clears the previous apks stored dalvik cache. In most cases you can flash without a problem. But I recommend wiping between rom flashes just to eliminate any potential problems. Flashing something like Thriller over the stock rom you can probably get away with not wiping anything since all the apks are essentially the same. Flashing kernels you don't need to wipe anything. When flashing a rom with a completely different firmware I recommend a full data wipe. Restoring recovery backups such as nandroid require no wiping at all.
Also, wiping dalvik shouldn't affect any of your settings.
Sent from my LG-P920 using Tapatalk

+1
When switching ROM with different base apps, it is generally better to wipe caches than to get stuck in a boot loop, or having your apps and launcher FC on you. You never lose anything as the cache rebuilds itself on the next reboot, except maybe a few minutes
CallMeAria said:
If there are any compatibility issues between the apk dalvik cache of your previous rom and the apks on the new rom wiping dalvik clears the previous apks stored dalvik cache. In most cases you can flash without a problem. But I recommend wiping between rom flashes just to eliminate any potential problems. Flashing something like Thriller over the stock rom you can probably get away with not wiping anything since all the apks are essentially the same. Flashing kernels you don't need to wipe anything. When flashing a rom with a completely different firmware I recommend a full data wipe. Restoring recovery backups such as nandroid require no wiping at all.
Also, wiping dalvik shouldn't affect any of your settings.
Sent from my LG-P920 using Tapatalk
Click to expand...
Click to collapse

so, when i flashed thriller and followed the instructions, did I do a full wipe or not?
I mean if it doest it on its own, and if not, should I do one?

latinohot said:
so, when i flashed thriller and followed the instructions, did I do a full wipe or not?
I mean if it doest it on its own, and if not, should I do one?
Click to expand...
Click to collapse
If you followed the instructions you did a full data wipe. When you do this the dalvik gets wiped as well. To just wipe dalvik look under the Advanced menu in cwm recovery.
Sent from my LG-P920 using Tapatalk

clearing cache
i am using a nand rom in my HD2, and i also want to install another rom via SD in Magldr, but because of kernel issues i cannot load the Rom from SD unless i use the kernal i am advised to use. I am instructed to clear the dalvik and cache, but does this mean that i would lose anything from my current NAND rom? I still want to be able to use that of coarse so i just want to make sure there are no major risks when clearing cache.

ssj5legend said:
i am using a nand rom in my HD2, and i also want to install another rom via SD in Magldr, but because of kernel issues i cannot load the Rom from SD unless i use the kernal i am advised to use. I am instructed to clear the dalvik and cache, but does this mean that i would lose anything from my current NAND rom? I still want to be able to use that of coarse so i just want to make sure there are no major risks when clearing cache.
Click to expand...
Click to collapse
Clearing dalvik and cache wont make you lose anything, used to do it with my shift because I'd flash about 10 zips a day sometimes...
Also when it comes to flashing any ROM I format system data cache wipe dalvik cache and do a factory reset just to be sure nothing from a previous ROM is left over also wipe my SD ext partition when running an a2sd ROM, my question is can I safely manually format the emmc partition of the thrill from the mounts and storage option of cwm
Sent from my LG-P925 using Tapatalk

[Q]Is it possible to update ROM version only?

Is it possible to update the current ROM version without wiping the data and apps installed on the current ROM version.
Currently I'm using squadzone's ver5.2 and I'm planning to use the ver5.3.
Can I just install the ver5.3 without wiping my current data and apps?

ecyaj said:
Is it possible to update the current ROM version without wiping the data and apps installed on the current ROM version.
Currently I'm using squadzone's ver5.2 and I'm planning to use the ver5.3.
Can I just install the ver5.3 without wiping my current data and apps?
Click to expand...
Click to collapse
Though this is not recommended, you can try not to wipe data and apps.. If your phone boots to homescreen after you flash 5.3 without wiping, well and good.. But if you get stuck on the boot splash screen, you have no choice but to do a data wipe.. Best option is to backup app data with TBP (Titanium) and restore them after you do a clean flash, that is wiping data/reset, wiping cache..
Hope you press the Thanks button if my post helps..

kitrax59, it is not so bad as you think. I tried lots of times to jump from one CyanogenMod to other without wiping, and it worked rather OK. i didnt notice any problem. ecyaj, you may not wipe, but if you notice some bugs - it is recommended to wipe data

Thanks for the info GallardoSD..., but it was too late. I just wipe everything and installed squad's new v5.4. I used TBP and did restore them after flashing. It was just I need to setup everything again...

[Q] Droid 4 CM10.1 Stuck at Boot

My phone will currently not boot bast the CyanogenMod boot screen.
I flashed my phone several months ago to CM10.1 It was the update that patched the "masterkey" bug. I have been using it daily since then with no problems.
Today, I turn my phone on, and it just hangs at the boot animation.
There were no significant changes since the last time it was powered on. I think I installed McPixel from the humblebundle, and uninstalled a game from the playstore called Krog. No setting changes of any significance.
I've tried booting into safestrape and deleting both the cache and the dalvik cache, neither has helped. My stock rom still loads just fine, but i had factory reset it quite a while ago. I do have a backup of the rom from about 40 days ago i can try restoring, but i would love a more nondestructive way to fix this.

Try booting into safestrap, wiping system, cache, and dalvik, then reinstall the ROM and gapps.
Droid 4 - Avatar

kwyrt said:
Try booting into safestrap, wiping system, cache, and dalvik, then reinstall the ROM and gapps.
Droid 4 - Avatar
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Click to collapse
0.o wouldn't that be a LOT more destructive than just restoring the old backup?

pyro42 said:
0.o wouldn't that be a LOT more destructive than just restoring the old backup?
Click to expand...
Click to collapse
Nope. You are not wiping data so all your apps, setting, etc will still be there.

the data itself will remain if you just wipe the system, cache and dalvik cache but be sure to reinstall the latest stable build of CM and gapps for it
Sent from my XT894 using xda premium

kwyrt said:
Nope. You are not wiping data so all your apps, setting, etc will still be there.
Click to expand...
Click to collapse
ah gotcha gotcha...
unfortunately it didn't work.
for troubleshooting's sake, i went ahead and made a backup of the rom in it's non-working state.
i restored my old backup, it boots just fine.
restored borked backup (tested it, still won't boot), wiped cache/dcache, wiped system, installed cm-10.2-20130821-NIGHTLY-maserati.zip and gapps 20130812, wiped cache/dcache again for good measure, then reboot and waited 10 minutes, still won't pass boot logo.
so i figure someting's wrong with Data right? so i rebooted to safestrap and did a factory restore, then wiped cache/dcache, and still won't boot.
so now i'm going at it the opposite direction. restoring the working backup, restoring just the data from the nonworking backup, then upgrading CM/Gapps
rebooting.. and....
blank screen with full backlight. not so much as a CM logo.
i guess for now i am going to restore back to the old backup, update the rom, and go about reconfiguring, unless anyone has any more suggestions?

pyro42 said:
ah gotcha gotcha...
unfortunately it didn't work.
for troubleshooting's sake, i went ahead and made a backup of the rom in it's non-working state.
i restored my old backup, it boots just fine.
restored borked backup (tested it, still won't boot), wiped cache/dcache, wiped system, installed cm-10.2-20130821-NIGHTLY-maserati.zip and gapps 20130812, wiped cache/dcache again for good measure, then reboot and waited 10 minutes, still won't pass boot logo.
so i figure someting's wrong with Data right? so i rebooted to safestrap and did a factory restore, then wiped cache/dcache, and still won't boot.
so now i'm going at it the opposite direction. restoring the working backup, restoring just the data from the nonworking backup, then upgrading CM/Gapps
rebooting.. and....
blank screen with full backlight. not so much as a CM logo.
i guess for now i am going to restore back to the old backup, update the rom, and go about reconfiguring, unless anyone has any more suggestions?
Click to expand...
Click to collapse
Yeah, definitely sounds like something in /Data. Only other possible option I can think of would be to use Titanium Backup. It has an option to "Extract from Nandroid backup". It's under the "SPECIAL BACKUP/RESTORE" options. I've never used that option before so I have no idea how or if it would work but might be worth a shot.

kwyrt said:
Yeah, definitely sounds like something in /Data. Only other possible option I can think of would be to use Titanium Backup. It has an option to "Extract from Nandroid backup". It's under the "SPECIAL BACKUP/RESTORE" options. I've never used that option before so I have no idea how or if it would work but might be worth a shot.
Click to expand...
Click to collapse
wonderful idea, unfortunately TB crashes when i point it at either backup.
buuut i did find Nandroid Manager * ROOT which looks like it might be working.

if you really wanna see if it is the data or not have you tried to
flash 10.2 or whatever you started out with... then restore -just-
the data to the freshly flash system and then do a wipe of all
said caches... I do that sometimes to get a fresh start on my
os itself.. works pretty well. Just do not restore the cache just
the data part. Or restore with MD5 checking... if it doesn't check
out then you know for a fact that the data partition in that specific
nandroid isn't any good :/

[Q] Tablet is acting strange

Hi,
I've been using galaxy tab 8.9 with custom ROMs for more than a year and a half now, and sometimes it was acting strange, like flickering dialogs and crashes. Usually this meant an unstable ROM or just cache wasn't cleared when a new ROM was installed. And it was stable for some time, till I did a reset. Now no ROM is stable any more in addition to this, the battery sometimes says it is empty, but after restart it is back to normal status. I tried number of ROMs without luck, all are flickering lately which must mean it is not ROMs fault.
I am running out of ideas what to do with this tablet, so I'm asking if you guys have any suggestions, what else can I do to fix it.
NOTE: when installing a new ROM, I always did it with CWM recovery from internal storage with data, cache, dalvik wipe and factory reset.
regards, Daniel

danizmax said:
Hi,
I've been using galaxy tab 8.9 with custom ROMs for more than a year and a half now, and sometimes it was acting strange, like flickering dialogs and crashes. Usually this meant an unstable ROM or just cache wasn't cleared when a new ROM was installed. And it was stable for some time, till I did a reset. Now no ROM is stable any more in addition to this, the battery sometimes says it is empty, but after restart it is back to normal status. I tried number of ROMs without luck, all are flickering lately which must mean it is not ROMs fault.
I am running out of ideas what to do with this tablet, so I'm asking if you guys have any suggestions, what else can I do to fix it.
NOTE: when installing a new ROM, I always did it with CWM recovery from internal storage with data, cache, dalvik wipe and factory reset.
regards, Daniel
Click to expand...
Click to collapse
Do you ever wipe the system partition?

upconvert said:
Do you ever wipe the system partition?
Click to expand...
Click to collapse
Agree. In TWRP, a factory reset only wipe data, cache and dalvik cache. You have to manually format system. A clean install requires to wipe system, data, cache and dalvik-cache.
---------- Post added at 08:18 AM ---------- Previous post was at 08:17 AM ----------
danizmax said:
Hi,
I've been using galaxy tab 8.9 with custom ROMs for more than a year and a half now, and sometimes it was acting strange, like flickering dialogs and crashes. Usually this meant an unstable ROM or just cache wasn't cleared when a new ROM was installed. And it was stable for some time, till I did a reset. Now no ROM is stable any more in addition to this, the battery sometimes says it is empty, but after restart it is back to normal status. I tried number of ROMs without luck, all are flickering lately which must mean it is not ROMs fault.
I am running out of ideas what to do with this tablet, so I'm asking if you guys have any suggestions, what else can I do to fix it.
NOTE: when installing a new ROM, I always did it with CWM recovery from internal storage with data, cache, dalvik wipe and factory reset.
regards, Daniel
Click to expand...
Click to collapse
Try flashing the original firmware via odin.

iZLeeP said:
Try flashing the original firmware via odin.
Click to expand...
Click to collapse
Flashing original firmware would be my last resort. Is there any difference between odin and CWM flashing?

danizmax said:
Flashing original firmware would be my last resort. Is there any difference between odin and CWM flashing?
Click to expand...
Click to collapse
Of course. Flashing original firmware via odin brings back the original setup that came with the tab out of the box. I just don't remember if it will delete the contents of internal sd card. In any case, you can flash original firmware thru CWM as I always do, though I only flash boot and system images I modified in Kitchen. It will still be stock but only that it has been debloated, rooted, busybox installed, init.d enabled, and some system apps replaced.
Just remember that when flashing ROMs via CWM do a factory reset (wipe data, cache, dalvik-cache). In addition to the wipe, the rom.zip itself formats the system partition prior to flashing.