Hey guys
i want to know i need to wipe anything before or after flashing kernel or rom " Custom" - " Official " Roms ?
Clearing data and cache would ensure you have clean installation.
Yes, you should clear data/cache before you flash a new rom.
For kernels (data wipe/reset is not necessary) there's jbroid script, flash it before you install a new kernel.
Boy124 said:
Clearing data and cache would ensure you have clean installation.
Yes, you should clear data/cache before you flash a new rom.
For kernels (data wipe/reset is not necessary) there's jbroid script, flash it before you install a new kernel.
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It all depends though. If you change ROMs and they are pretty different you really should wipe data, cache, and dalvik. That's what every OP says on ROMs. Just read the OP.
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I always wipe cache/dalvik cache, battery settings and rotate setting before flashing a new kernel. I have heard people suggesting it is good to wipe all the above after flashing the new kernel as well. Is there a reason for doing this? Is it really helping anything?
There is no reason to wipe anything while doing a kernel upgrade.
I disagree.
It's always advisable to wipe at least dalvik-cache when changing kernels.
Indeed, the preferred, no loss, logical and recommended thing to do is always wipe cache and dalvik-cache when you upgrade /boot/ or /system/.
Any new rom, kernel or radio - wipe cache and dalvik-cache. It costs you nothing and eliminates most issues people experience.
I've just changed my rom, Kang-o-rama, to force wipe cache and dalvik-cache because not enough people follow simple instructions.
Just wondering... If i wipe cache will i lose all my data and settings/preferences? Especially data in my apps like messaging...etc?
Because i plan to try this out before updating to FRF85B, ive heard claims that wiping cache helps improve speed though some stated otherwise.
cr0wnest said:
Just wondering... If i wipe cache will i lose all my data and settings/preferences? Especially data in my apps like messaging...etc?
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nope .......
JonInAtl said:
nope .......
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Thanks, maybe i'll try that out before i flash to FRF85B and see if theres any difference.
Agree.
Wipe dalvik-cache
Wipe Dalvik but leave the other. I have had Batterylife dropping horribly after wiping my cache. But i reflashed my radio and all was back to normal. So not a Kernel issue.
But i would leave cache alone no matter what and wipe it if you experience any boot problems.
Thanks
Thanks for asking this questions. I was going to ask the same one but I just came here and read the answer already. Sweet..
I want to flash franco kernel with TWRP.
Is it advisable or necessary to wipe dalvik AFTER flashing the kernel? Would it do any harm if I didn't wipe dalvik after flashing?
Smoosh1 said:
I want to flash franco kernel with TWRP.
Is it advisable or necessary to wipe dalvik AFTER flashing the kernel? Would it do any harm if I didn't wipe dalvik after flashing?
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You should always wipe caches to be safe, they may contain unexpected data. If you don't wipe and your device operates correctly then no problem.
I've always been flashing franco kernel with FKU. Next time I want to flash with TWRP, just to see how it goes. Thanks for your reply, I'll wipe dalvik after flashing then.
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!
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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
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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?
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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.
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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
or can i just dirty wipe and wipe dalvik cache and im good to go?
thanks
Jamal Ahmed said:
or can i just dirty wipe and wipe dalvik cache and im good to go?
thanks
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Not sure about this particular case, but I'll tell you my approach is to *always* do a full wipe + format partitions and internal sdcard before flashing *any* ROM. This way I'm sure there's nothing old left (app data, config etc.). Using this approach I've been running many ROMs without most of the bugs users report (using XXLSA now), I think it's worth the time to reinstall and reconfig everything. If you don't need to keep old data and config:
1) Wipe data & cache
2) Wipe dalvik cache
3) Format /system & /preload
4) Format internal sdcard (make sure you save anything you need before)
5) Flash ROM
6) Wipe cache again
7) Wipe dalvik cache again
8) Reboot
(Not sure if 6 and 7 are needed, but I prefer to be a bit paranoid in this case.)
Jamal Ahmed said:
or can i just dirty wipe and wipe dalvik cache and im good to go?
thanks
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I think it depends on which custom rom u r currently on & which one you are gonna flash..for ex: flashing Ultimate v5 XXLSA over Alliance v1 XXLS7 may not work..
dbolivar said:
Using this approach I've been running many ROMs without most of the bugs users report (using XXLSA now))
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I agree with you. If you perform a full wipe before to install a new rom, the probabilities of occur in some rom's issue (like FC or just a "simple" weird lag) are low. Tested personally.
It always better/advised to perform a full wipe.
In the end, you could do a nandroid backup of your last used rom, wipe everything, install the new rom, and then try to restore the data partition only. If you get some errors or general issue, you can easily full wipe everything again, and reinstall the new rom again... at least, you tried
Jamal Ahmed said:
or can i just dirty wipe and wipe dalvik cache and im good to go?
thanks
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What does the OP states? Flashing ROMs is STILL a dangerous business.
Read the OP for the ROM you are installing
Jamal Ahmed said:
or can i just dirty wipe and wipe dalvik cache and im good to go?
thanks
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leaks always require full wipe for it to function properly.
hey guys,
which is the best method to clean your phone before flashing a new rom, or maybe bringing your phone to the state it was just after flashing a new rom. i tried data factory reset, wipe cache , wipe dalvik with kernels we have here and i found remainents of zip files i had flashed after setting up my rom and using newer mods. i dont want to format system, preload all the time.
which is your perfect, effective method ? speedmod kernel and its recovery or phillz , then which version ?
thanks
rraaka said:
hey guys,
which is the best method to clean your phone before flashing a new rom, or maybe bringing your phone to the state it was just after flashing a new rom. i tried data factory reset, wipe cache , wipe dalvik with kernels we have here and i found remainents of zip files i had flashed after setting up my rom and using newer mods. i dont want to format system, preload all the time.
which is your perfect, effective method ? speedmod kernel and its recovery or phillz , then which version ?
thanks
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why you dont want format system and preload before flashing rom?
what I do before flashing any rom is:
flash philz kernel
wipe data / cache / dalvkk cache
format / cache / system / data / preload
and then flash new rom
and thats it, with this procedure I have never faced any issue with any rom I have flashed.
usualy I use this method even befoe restoring my nandroid backup.
above methods I using with philz and speedmod, but i prefer philz when wiping and flashing and making backup, because it has nice cwm for doing that. but after I flash new rom I immediatly flash speedmod because it is the better than philz if you drive your new rom, and you are not in cwm at the moment
hope this helped
Sent from my GT-N7000 using xda app-developers app
completely agree with you djoni, but when you are flashing continuously, experimenting a lot ...you know ...this and that,
isnt a data factory reset , wipe cache, wipe dalvik supposed to bring you to that condition just after booting up after a new rom flash ? why were there remanents from a mod i had flashed after using the rom for some time ?
Stupid Noob question... Once a Custom ROM (CM or SlimLP) has been installed..
- What is the easiest way to keep it upgraded?
- Are there OTA upgrades for them?
- Or only flashing a newer ROM version is the only option? If this is the only way, what is the best way to preserve the apps and settings?
The easiest and safest way to keep the ROM updated (from what I know, anyway) is to download the newest version of the ROM and clean flash it (erase system, dalvik, and cache). I don't think there's OTAs for this version, as none of the ROMs here are official. When you flash a newer the ROM, all your data will be saved, unless you wipe internal storage.
loocool2 said:
The easiest and safest way to keep the ROM updated (from what I know, anyway) is to download the newest version of the ROM and clean flash it (erase system, dalvik, and cache).
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That's not a clean flash, that's called a "dirty" flash.
User data and settings are retained by doing a dirty flash but if you experience any bugs or problems after a dirty flash, then backup your apps, user data, settings & do a clean flash instead. Backup using Titanium Backup or your choice from the multitude of backup apps.
Dirty flash = wipe cache, dalvik cache and system.
Normal clean flash = wipe dalvik cache, cache, data and system. Always do this if you come from stock or another rom.
blueberry.sky said:
That's not a clean flash, that's called a "dirty" flash.
User data and settings are retained by doing a dirty flash but if you experience any bugs or problems after a dirty flash, then backup your apps, user data, settings & do a clean flash instead. Backup using Titanium Backup or your choice from the multitude of backup apps.
Dirty flash = wipe cache, dalvik cache and system.
Normal clean flash = wipe dalvik cache, cache, data and system. Always do this if you come from stock or another rom.
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Think it'll depend what you restore from Titanium as to how clean it remains afterwards.
blueberry.sky said:
That's not a clean flash, that's called a "dirty" flash.
User data and settings are retained by doing a dirty flash but if you experience any bugs or problems after a dirty flash, then backup your apps, user data, settings & do a clean flash instead. Backup using Titanium Backup or your choice from the multitude of backup apps.
Dirty flash = wipe cache, dalvik cache and system.
Normal clean flash = wipe dalvik cache, cache, data and system. Always do this if you come from stock or another rom.
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so if you already have installed SlimLP and want to upgrade and not lose your stuff, do a "Dirty flash"?
Yes.
But if you see any problems after a dirty flash, refrain from posting about the problem. First do a clean flash then check if the problem still exists.
thanks for the info all!