Develop Bugs

Proper way to flash rom and kernel

What is the proper sop to flash a new rom and kernel what should I be wiping? Thanks
Sent from my Galaxy Nexus using Tapatalk

For best results always do a full wipe in recovery (wipe data, cache and dalvik cache) then flash the ROM or kernel. This is really important if you are changing from one ROM to another. Updating one ROM to a new version of the same ROM does not require any wiping but sometimes the ROM developer recommends a full wipe.
Dalvik cache wipes are also optional but important if going one kerenl to a completely different one.

samizad said:
For best results always do a full wipe in recovery (wipe data, cache and dalvik cache) then flash the ROM or kernel. This is really important if you are changing from one ROM to another. Updating one ROM to a new version of the same ROM does not require any wiping but sometimes the ROM developer recommends a full wipe.
Dalvik cache wipes are also optional but important if going one kerenl to a completely different one.
Click to expand...
Click to collapse
If I may, the marked text above is misleading; no need whatsoever to be wiping data before flashing a kernel.

Vangelis13 said:
If I may, the marked text above is misleading; no need whatsoever to be wiping data before flashing a kernel.
Click to expand...
Click to collapse
actually, to avoid funny weird things and numerous user inflicted problems..
I would almost enforce wipe so ppl can post proper bug reports..

s2d4 said:
actually, to avoid funny weird things and numerous user inflicted problems..
I would almost enforce wipe so ppl can post proper bug reports..
Click to expand...
Click to collapse
Factory reset for a kernel? Nah, come on. If you're flashing a totally different kernel than the one you have, yes, wipe cache & dalvik. But at most that.

Vangelis13 said:
Factory reset for a kernel? Nah, come on. If you're flashing a totally different kernel than the one you have, yes, wipe cache & dalvik. But at most that.
Click to expand...
Click to collapse
o, i was just following what he way saying with sentiments..
yes, kernel isn't required but depending on the kernel dev, some do leave boot up scripts behind though and not just init.d scripts from past experiences.

acer ring from flex reaper rom, questions

So i just flashed this rom. and everything worked fine including the ring. So after, i flashed diff mods and colors for the acer ring and also the fix (that was updated 6/2/12 i believe?
then after taking some screen shots. a pop up said,
system ui has stopped unexpecticly. or something like that.
and now the botton in the center is gone. So i cant use it at all.
Checked settings and it is enabled.
What should i do to fix? just reflash any acer ring or just the fix. or just flash the hole rom again?

trevor7428 said:
So i just flashed this rom. and everything worked fine including the ring. So after, i flashed diff mods and colors for the acer ring and also the fix (that was updated 6/2/12 i believe?
then after taking some screen shots. a pop up said,
system ui has stopped unexpecticly. or something like that.
and now the botton in the center is gone. So i cant use it at all.
Checked settings and it is enabled.
What should i do to fix? just reflash any acer ring or just the fix. or just flash the hole rom again?
Click to expand...
Click to collapse
Reboot into recovery then wipe cache, dalvik, fix permissions then reboot check the ring.
Tapatalked from my Galaxy S II.

pio_masaki said:
Reboot into recovery then wipe cache, dalvik, fix permissions then reboot check the ring.
Tapatalked from my Galaxy S II.
Click to expand...
Click to collapse
ya. i got it working again.
i get nervous going into recovery to flash something. i already bricked my transformer tf300 last week. but i got it back up and running. i just get scared. I'm gunna do a noob mistake and permently brick one of my devices.
but i didnt wipe anything. i rebooted, but it was still gone, went in settings unchecked, checked acer ring, rebooted again then it was back
btw do you no how to change bookmarks in acer ring. too ur google/ chrome bookmarks instead of the stock ones?

I haven't noticed a way it seems to only show the stock browser, import them into the stock browser should put them on the ring too. Also delete from the stock any you don't want.
Huge edit: forgot to mention, any changes like flashing rings or mods etc. Should be followed by cache and dalvik wipe, and maybe fix permissions. That way old info is wiped so the new info can settle instead of it finding new info where it expects old info...make sense?
Flashing is fine provided you know what you're doing. Don't just do random things and you'll be OK. Only flash for your device, and mods meant for your rom, like the stuff civato posts for his FR rom. Recovery is safe as long as you use common sense and caution. If you don't know what something does, don't use it. Google it or ask, better to wait and know then guess and brick.
Generally always safe to do is wipe cache dalvik fix permissions. No data loss that you see occurs.
Safe if something broke and won't boot BUT you lose apps and settings is wipe data/ factory reset, done with wipe cache and dalvik and maybe fix permissions.
Wiping system wipes out android and you must flash a new rom or restore to boot into the system, and is always done with cache dalvik and data.
I strongly advise against partitioning from recovery if possible. If you must partition your SD card then use a PC tool not recovery. Don't initiate sd-ext wipes directly, if it happens on resets that's fine just don't do it by itself. I only mention this because on my phone we had a string of bricks due to bad recovery mapping and it was nuking our loaders instead. Stick to what I said and you're safe in recovery and flashing. I'm sure others can chime in with more info on this too.
Tapatalked from my Galaxy S II.

pio_masaki said:
I haven't noticed a way it seems to only show the stock browser, import them into the stock browser should put them on the ring too. Also delete from the stock any you don't want.
Huge edit: forgot to mention, any changes like flashing rings or mods etc. Should be followed by cache and dalvik wipe, and maybe fix permissions. That way old info is wiped so the new info can settle instead of it finding new info where it expects old info...make sense?
Flashing is fine provided you know what you're doing. Don't just do random things and you'll be OK. Only flash for your device, and mods meant for your rom, like the stuff civato posts for his FR rom. Recovery is safe as long as you use common sense and caution. If you don't know what something does, don't use it. Google it or ask, better to wait and know then guess and brick.
Generally always safe to do is wipe cache dalvik fix permissions. No data loss that you see occurs.
Safe if something broke and won't boot BUT you lose apps and settings is wipe data/ factory reset, done with wipe cache and dalvik and maybe fix permissions.
Wiping system wipes out android and you must flash a new rom or restore to boot into the system, and is always done with cache dalvik and data.
I strongly advise against partitioning from recovery if possible. If you must partition your SD card then use a PC tool not recovery. Don't initiate sd-ext wipes directly, if it happens on resets that's fine just don't do it by itself. I only mention this because on my phone we had a string of bricks due to bad recovery mapping and it was nuking our loaders instead. Stick to what I said and you're safe in recovery and flashing. I'm sure others can chime in with more info on this too.
Tapatalked from my Galaxy S II.
Click to expand...
Click to collapse
i thanked you for your last post i feel i owe you more thanks than replies you made specifically to me lol. yah i had no idea you had to wipe cache and dalvik and fix permissions. when flashing the acer ring. i thought only do that on roms. thats probably why my acer ring was giving me problems. havn't had one problem with it since i wiped.
but just to clarify, do you wipe cache/ dalvik before or after you flash (Acer ring for example) or both?

trevor7428 said:
i thanked you for your last post i feel i owe you more thanks than replies you made specifically to me lol. yah i had no idea you had to wipe cache and dalvik and fix permissions. when flashing the acer ring. i thought only do that on roms. thats probably why my acer ring was giving me problems. havn't had one problem with it since i wiped.
but just to clarify, do you wipe cache/ dalvik before or after you flash (Acer ring for example) or both?
Click to expand...
Click to collapse
Either or. Some say before flashing some say after. I do before and after but that's just because of my scripts doing it before I flash (full rom). Something like the ring I flash then wipe cache dalvik fix perms after, so any of the mods etc that are not rom installs. Full rom installs I full wipe before then flash everything then clear cache and dalvik. I only fix perms if I get FCs.
Tapatalked from my Galaxy S II.

[Q] Flashing a ROM help.

I am not new to this, I have experience with rooting htc and samsung devices. I have also searched, and searched, and searched with no luck on this.
However, I am stumped on this phone. I am using ODIN to flash the S/U script, I can gain root, install CWM and install it. I can load a ROM but one of 2 things happen: when I boot it up I get stuck in a boot loop, or it won't even install in the recovery.
I have a few questions / statements:
WHY am I getting stuck in this boot loop?
I am wiping cache/dalvik before I install the new ROM.
I am installing the ROM on the SD card vs the internal memory, is that why?
I got stuck 3 times in the boot loop, and I have had to use ODIN to flash my phone back to stock to start over.
Thanks in advance for the help.

If you have searched, and searched, and searched you would have realized that this is not development related.

for someone who's been around then, you should first off know that this belongs in q&a, not development.
that being said, which recovery are you using? i don't think that's your problem but a little more info would be helpful. also, which rom are you trying to use? when you're wiping, try using this, it'll wipe everything necessary. you only mentioned wiping your cache's so maybe that's it? in any case, flash the file i linked, then your rom. check the md5 on it and make sure it's a match. after you reboot, let your phone sit for 10 minutes and hopefully all will be well.

http://www.youtube.com/watch?v=JmvCpR45LKA

Mercuri82 said:
I am not new to this, I have experience with rooting htc and samsung devices. I have also searched, and searched, and searched with no luck on this.
However, I am stumped on this phone. I am using ODIN to flash the S/U script, I can gain root, install CWM and install it. I can load a ROM but one of 2 things happen: when I boot it up I get stuck in a boot loop, or it won't even install in the recovery.
I have a few questions / statements:
WHY am I getting stuck in this boot loop?
I am wiping cache/dalvik before I install the new ROM.
I am installing the ROM on the SD card vs the internal memory, is that why?
I got stuck 3 times in the boot loop, and I have had to use ODIN to flash my phone back to stock to start over.
Thanks in advance for the help.
Click to expand...
Click to collapse
If you look in the darkside rom thread, and some of the other rom threads, you will see three recommended wipes: darkside super, kernel and darkside cache. I would suggest you do all three.
Sent from my SGH-T989 using xda premium

Here is a big problem as well. You wipe cache and dalvik AFTER you flash the rom. I usually do it before as well but always after. That's like wiping before you **** and not cleaning up after
Sent from my SGH-T989 using XDA

odin version
jabberbox said:
http://www.youtube.com/watch?v=JmvCpR45LKA
Click to expand...
Click to collapse
I used an old version I couldn't get the latest one to work. But it wouldn't even load for me. It been a min sence ive used odin. But my replacement phone is at the house I'll pm you the steps I'll take. Everyone else try to be nice even if you think the question is stupid. Try to show some love
sorry i read wrong. i thought you couldnt gain root. as far as boot loops follow darksides wipe method it work. as far as my replacement phone rooted after first boot. my usb port is broke on my old phone
anyone know how to get back to stock with out it?
sence we are asking crazy ass questions?
dam auto correct

Questions go in the Q&A section

To those of you who helped by answering my question, thank you.
To those of you who told me I posted in the wrong sub section, get over yourself. Especially the guy with 13 posts.
I am wiping cache/dalvik before and after.
I am using CWM from the market, so it should be the newest version.
Ill check out the darkside thread.

You really don't need to wipe dalvik cache after a fresh rom install, unless you didn't delete the data partition (wipe data). And you certainly don't need to do it before and after.
Wiping cache and dalvik cache is really only useful if you make changes to the system but don't want to format the data. This includes flashing themes, and other enhancements, because most of them are replacing system files. On your first boot the dalvik cache gets built. (This is why a lot of devs recommend letting it sit for a bit before using it, it's giving it time to build the cache.)
The reason they tell you to wipe dalvik cache is let's say you're installing a theme, and it replaces systemui.apk and framework-res.apk, located in the system partition. The dalvik cache is already built for these files, so in some cases if you don't wipe the cache you'll boot loop. When you wipe dalvik, you are letting it be rebuilt with the current files.
Also, while we're on the subject, another misconception I see alot of, you don't need to wipe the dalvik cache after you wipe data. Dalvik cache is located on the data partition, it's a folder there. If you wipe the data partition, you've already removed it. (Not to be confused with cache partition, which is used for different purposes. That is it's own partition.)

[Q] updating a ROM - flash what? wipe what?

I want to update my Unofficial CM10 +3.x Kernel to the latest update from Hashcode.
UNOFFICIAL CM10 + 3.x Kernel for Kindle Fire [09/16 CHARGING+]
When you do an update like this, do you wipe everything like I did when I first flashed the ROM? I mean, when I installed, I wiped system, factory reset, cache and dalvik cache. Then I flashed the ROM and then I flashed gapps.
So now I just want to update the OS, what do I need to wipe? And will I need to flash gapps again?
CAn't ask this in the development thread 'cause my n00b hat it still too shiney.
Thanks!

A question like this doesn't belong in the development thread because it isn't development related.
If you're going from one ROM to a different one, you need to wipe System and Factory Reset (data and cache).
If the ROM is simply an update of an existing ROM, generally all you need to wipe is data and cache. There are always exceptions to this so it's always a good idea to make a backup in case things turn sour.
After installation of the ROM you have the option to wipe cache and dalvik. It isn't required but not wiping them has been known to cause some bugginess.

soupmagnet said:
A question like this doesn't belong in the development thread because it isn't development related.
If you're going from one ROM to a different one, you need to wipe System and Factory Reset (data and cache).
If the ROM is simply an update of an existing ROM, generally all you need to wipe is data and cache. There are always exceptions to this so it's always a good idea to make a backup in case things turn sour.
After installation of the ROM you have the option to wipe cache and dalvik. It isn't required but not wiping them has been known to cause some bugginess.
Click to expand...
Click to collapse
Thank you once again, soupmagnet. Yeah this is just an update to my current ROM. So .... I won't need to flash gapps again?
I'm slowly figuring this stuff out. hehehe... When I was 30 I picked this stuff up quick. Turning 60 on Thursday and stuff tends to need a little more pondering lately. hahaha
Anywho.... thanks

Oh, yeah. You need to flash Gapps if you wipe system.

soupmagnet said:
Oh, yeah. You need to flash Gapps if you wipe system.
Click to expand...
Click to collapse
OK, see, now you're messin' with the old man here... hehehe
On one hand I'm hearing if I am only updating my current ROM, I just wipe data and cache.
Then you tell me I have to flash gapps if I wipe System.
But prior you said I only need to wipe system if I'm going from one ROM to a different ROM.
So.... I'm just updating my current ROM. I wipe data and cache, flash the updated ROM, wipe dalvik.... done...
no flash gapps, right?
I need to look at TWRP again to see exactly how it presents the choices. Don't be hatin' on the old guy for bein' dumb now.
OK, booted to TWRP. When I select Wipe my choices are : Cache, Dalvik Cache, Factory Reset, System and then External Storage. So... in your first answer to me when you said to go to a different ROM I should wipe "System and Factory Reset (data and cache)" it appears you are telling me that "System and Factory Reset" is another way of referring to "data and cache". Is that correct?

Gapps go in the /system/app folder so if you wipe the system partition, Gapps will go along with it.

soupmagnet said:
Gapps go in the /system/app folder so if you wipe the system partition, Gapps will go along with it.
Click to expand...
Click to collapse
GAaaahhh..... I just wiped System and watched as it processed /system
and then I wiped Factory Reset and watched as it processed /data and /cache
So I guess that answers my confusion.

[Q] How to get rid of having to do a battery pull

Hey guys,
I always have to pull my battery out multiple times on reboots, or after flashing a rom.
When I change roms, I do a fact. reset and wipe cache/dalvik, on updates of same rom I only do a wipe of cache/dalvik. I tried fixing permissions.
How is this caused ? It eventually boot up every time, just very annoying.
Does wiping system help ? I've read that most rom dev's include it anyway in flashing rom.
Phone: Samsung Galaxy Nexus
Rom: AOSP Paranoid Android 2.99 beta 5
Recovery: TWRP 2.3.2.1
Thnx for your help!

Firewalker1980 said:
Hey guys,
I always have to pull my battery out multiple times on reboots, or after flashing a rom.
When I change roms, I do a fact. reset and wipe cache/dalvik, on updates of same rom I only do a wipe of cache/dalvik. I tried fixing permissions.
How is this caused ? It eventually boot up every time, just very annoying.
Does wiping system help ? I've read that most rom dev's include it anyway in flashing rom.
Phone: Samsung Galaxy Nexus
Rom: AOSP Paranoid Android 2.99 beta 5
Recovery: TWRP 2.3.2.1
Thnx for your help!
Click to expand...
Click to collapse
I haven't encountered this but I sometimes get bootloop when I flash Gapps without wiping cache and dalvik. Whenever I flash a new ROM, I do factory reset, wipe system, cache, and dalvik. So you may try wiping all of them and make a fresh install of the ROM then see if this problem keeps affecting you. Just make a nandroid backup in case this does not help so you restore your whole data easily

ahmadallica said:
I haven't encountered this but I sometimes get bootloop when I flash Gapps without wiping cache and dalvik. Whenever I flash a new ROM, I do factory reset, wipe system, cache, and dalvik. So you may try wiping all of them and make a fresh install of the ROM then see if this problem keeps affecting you. Just make a nandroid backup in case this does not help so you restore your whole data easily
Click to expand...
Click to collapse
Hey thx for your suggestions!
I always flash a "new" rom that way though. But an update of the same rom, I "dirty" flash, which should be fine according to everyone.
No matter what Rom/Kernel I use, I still frequently have to pull the battery out.
It's never from locking up within Android. It just freezes/loops on the Google bootlogo.
I once wiped everything, even the storage space, and it helped for a little while, but did not make it go away for good.
Could it be related to certain apps ? Maybe PGM or Seeder or smth ?
All input welcome
---------------------------------------------------------------
Phone: Samsung Galaxy Nexus Maguro
Rom: AOSPA 2.99 latest
Kernel: AK Purity v20
Recovery: TWRP 2.3.3.0