[Q] full wipe still needed? - Samsung Epic 4G Touch

So now that we have a source release with a safe recovery built-in is a full wipe still needed when flashing ICS to ICS?
This is probably a dumb question but I've been wondering about it.
This question is about going from tw to tw base Rom.
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epic4gfaded said:
So now that we have a source release with a safe recovery built-in is a full wipe still needed when flashing ICS to ICS?
This is probably a dumb question but I've been wondering about it.
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I have done several ICS to ICS flashes using AGAT's recovery with no issues.

In general it's a good idea to not let data linger around, especially if you're flashing a new ROM. It rules out that any problems you experience are due to corrupted data from the flash process.
Fortunately with Agat's repack you can safely restore backups for TW roms.... meaning the setup should only be a one time deal for each new ROM flash.

Related

[Q] CWM, Rogue, and ROMS

So heres a question:
Wgy do we have rogue recovery with the kernels when we cant flash ROMs from it.
Well we arent supposed to.
Why not repack the kernel with pure CWM and eliminate everyone form having to take the extra step of flshing back to CWM before flashing a new ROM
tramane said:
So heres a question:
Wgy do we have rogue recovery with the kernels when we cant flash ROMs from it.
Well we arent supposed to.
Why not repack the kernel with pure CWM and eliminate everyone form having to take the extra step of flshing back to CWM before flashing a new ROM
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It won't matter as its the ics kernel that is the problem not rouge not Acs not cwm.....
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I've been flashing with it. So have plenty of others. Some people bricked and they may have been using rogue but I wrecked a Honda once.... Its usually user error.
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You have a point.Im coming from original Epic 4g and im deffinetly confused about the kernels on Epic Touch.
This is what I mean:On original Epic they had kernels that you could flash on top of just about any rom in cwm or odin.But for Epic Touch im yet to find any kernels for it.Yes there are some stock EL29EG31,etc.. in wiki pages but thats it?
There are only two kernels on wiki that are non stock and they are Hitman's kernel and Rogue kernel,is that all we got?Og Epic had about 30 different nonstock kernels.
So my question is this:
1 Are Rogue and Hitman kernels come with their own cwm?
2 Are Rogue and Hitman are only two nonstock kernels?
3 Are all the other lernels on wiki EL29,EL26,EG30,etc.. are just stock or modified stock?
4 Can any of those kernels(besides ics Rogue of course) be flashed to any GB rom?
5 Are there any difference between different versions of Rogue and Hitman?Or latest is the best?
6 And if Rogue and Hitman also come bundled with their own version of cwm,what is the difference between those two cwm's?
I been on original epic xda forums for years and this **** is confusing,they should make a thread for new people.
Pretty sure its not user error, given that at least 3 of our most prominent bleeding edge devs bricked doing it. I made the mistake of believing it was user error, but all evidence points to the contrary.
The reason we have recovery on ICS kernels is there are things at this point that you can safely flash (basically, anything that doesn't wipe data). You can safely flash the visual voicemail .zips from rogue ICS recovery on AOSP roms, for example. But you can't flash a whole rom. You can make a nandroid for later restore from EL26 cwm. You can do a lot of things actually. Just don't flash an actual rom, and you should be fine.
lviv the reason there aren't many options on the ET for recovery is there aren't many devs that work with it. SteadyHawkin repacks rogue for us, and that's about it. We used to have a few others that did so, but now it's just SH. Personally I don't really care as rogue recovery works perfectly fine, and the reason we use stock CWM from EL26 is because it's all we need (no point in repacking another kernel since we all have access to that one, why waste the effort to put CWM on EL29 when chris41g did a fine job on EL26 and we are all using it for ICS flashing right now?). No point putting any more work into packing a diff recovery on ICS kernels when there's no source and there's a ton of fear of bricking going on.
I'm certainly no dev, but those are my observations.
I've said this before in the threads discussing the bricks. I am not a dev, so they can correct me.
I don't think the bricks had anything to do with the rogue repacks. I think it has to do with the way ICS handles the data partition. It seemed like the bulk of the bricks happened when we tried a factory reset, or wipe data and at that point we burned up our emmc chips.
Sounds crazy that that is possible just wiping a data partition, but it was pretty consistent.
At first I thought it was the temp touch recovery because that was what people were using when ICS was first leaked. I think most of us were also flashing it through the stock recover rather than odin or mobile odin. But, it began happening with rogue repacks as well.
Once the source drops these problems will probably clear up.
To the ops question, someone already answered. We can flash just about everything else with the repacks. I prefer the rogue repacks because he has streamlined them making them handier to use.
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I understand that some have had luck and others haven't. It just seems to me that if it doesn't brick every phone then it can't be the recovery itself. There has to be another common denominator. I guess the issue is that until that common denominator is figured out it could be dangerous to use.
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Devi0124 said:
I understand that some have had luck and others haven't. It just seems to me that if it doesn't brick every phone then it can't be the recovery itself. There has to be another common denominator. I guess the issue is that until that common denominator is figured out it could be dangerous to use.
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Exactly, I have been flashing things with the Rouge recoveries with no issues at all. I always use the Format all zip though and not the wipe in recovery, and that does wipe data so not really sure what is causing people to brick there phones.
I've never bricked using the ICS repacked recoveries, and I've used em to flash to different roms without format.zips before we knew it was even an issue, but now that I know this could potentially brick your phone, I won't be doing anything in recovery anymore except flashing themes or something that does not involve wiping. I'm not longer on ICS anymore though, as I see it completely pointless until official is out. Too much flashing, and not enough functionality ATM to see usable, runs kinda slow too, not complaining at all just stating why I'm not on it, when it's official it will be great, and the devs will be able to tweak the final build for some massive speed.
It is the data partition I believe, I'm not 100% sure on this but I think the wipe in recovery doesnt actually just wipe but reformats and resets the partition sizes whereas the wipeall zips just erase the data leaving the partitions alone
To simplify compare it to reformatting your harddrive in your PC.vs just factory resetting it or deleteing the data off of the drive leaving the OS intact but removing added on data
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i flashed roms with rouge
FYI there's evidence of problems in the kernel source.
I9100 update4 seems fine - but apparently Koreans are having lots of problems with the SHW-M250S/K/L source drop, and also gokhanmoral of SiyahKernel encountered a bunch of bricks when he attempted to rebase on the SHW-M250* source code base.
I'm another original epic owner that just switched to the touch....I've rooted and flashed ics.....now over there on the epic 4g we don't have ics source either...but we have cwm that flashes roms ,backups, restores, we can even flash a ROM to boot from the sdcard to calibrate the sensors and update your prl....so why do we need source on the touch to acquire those luxuries?
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rujelus22 said:
Exactly, I have been flashing things with the Rouge recoveries with no issues at all. I always use the Format all zip though and not the wipe in recovery, and that does wipe data so not really sure what is causing people to brick there phones.
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Same here as far as flashing things via rogue recovery. I even nandroided back to a gb rom from the fc24 repack, after wiping manually. I am not a fan of wipe all, i just like to verify my actions, so I do it manually. I am definitely not sure what is causing issues, but different phones have different actions on kernels in general, and our phones arent even near ready to handle them. That is why it is taking so long in order to push out official ICS, cause they need it to function on every phone, not just one. I am running mijjah XPLOD mini, and it works fantastic on my phone, but during charging it overheated until I flashed over the FD19 kernel.... Then problem solved. Maybe just a lot of these phones were first gen epic touches, and they couldnt handle the newest kernel..... I just bought my phone in december, so maybe my phone can handle it.... Just a something to ponder over.
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Entropy512 said:
FYI there's evidence of problems in the kernel source.
I9100 update4 seems fine - but apparently Koreans are having lots of problems with the SHW-M250S/K/L source drop, and also gokhanmoral of SiyahKernel encountered a bunch of bricks when he attempted to rebase on the SHW-M250* source code base.
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Thanks Entropy512 for the great response and insight! I hope more of the newbies (and some of the other hold outs) read your post. If guys like you, SiyahKernel, SteadyHawkin and some of other unbelievably fantastic devs can major issues and/or brick their device, and have found it to be the kernal (the other 'real' devs' have said that too!); than I for one and going with that! Thanks for all your work. Hopefully we'll get the final real source soon and than can pick through that.
-EViL-KoNCEPTz- said:
It is the data partition I believe, I'm not 100% sure on this but I think the wipe in recovery doesnt actually just wipe but reformats and resets the partition sizes whereas the wipeall zips just erase the data leaving the partitions alone
To simplify compare it to reformatting your harddrive in your PC.vs just factory resetting it or deleteing the data off of the drive leaving the OS intact but removing added on data
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I think you nailed it EK. If you watch what's going on in recovery when you flash the format all zip, it formats system which is not the same as a factory reset. After system it formats cache and dalvik. I haven't heard of any bricks flashing Calkulin's format all zip with an ICS recovery and then flashing an ICS rom. I've done it myself a few times but to be safe I now flash the EL26 kernel first.

A little ICS flashing help

A bit confused...
I'm on CM9 alpha 1 and want to get to alpha 2
The CM9 install page says to just use CWM5 to flash the ROM and I dont have to wipe anything...
But I see several things that seem to say flashing ICS stuff through CWM can brick the phone...
Some clarification please?
number 1 do not use rom manager!
number 2 it safe to flash using clockwork mod, upgrading ics roms. but to go back to gingerbread you need to use Odin.
at least that's what I understand. if I'm wrong someone please correct me
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davidstjohn1 said:
number 1 do not use rom manager!
number 2 it safe to flash using clockwork mod, upgrading ics roms. but to go back to gingerbread you need to use Odin.
at least that's what I understand. if I'm wrong someone please correct me
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Ok, that's sort of what I was thinking but I think I'll wait for at least another person to confirm... since you didn't sound real sure of it.. but thanks for the input
im on calks rom and to upgrade from 1.3 to 1.4 i only deleted the cache and dalkiv (sp?) cache and installed the rom and worked great.
blakjak220 said:
Ok, that's sort of what I was thinking but I think I'll wait for at least another person to confirm... since you didn't sound real sure of it.. but thanks for the input
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It's not safe to do any thing with a ics kernel .even wiping data cache etc can brick a phone ..... Always use A GB kernel to flash anything until we get source and they can fix it.... U can use mobile Odin to flash the el26 cwm kernel and then flash the rom without wiping data .... Make sure to flash rom twice and then flash gapps and you are good ....
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omargs7 said:
im on calks rom and to upgrade from 1.3 to 1.4 i only deleted the cache and dalkiv (sp?) cache and installed the rom and worked great.
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AOSP roms are quite a bit different then TW roms . Also I don't recommend wiping on ICS unless you like shiny bricks
xST4T1K said:
AOSP roms are quite a bit different then TW roms . Also I don't recommend wiping on ICS unless you like shiny bricks
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Are you saying dont wipe anything while you have an ICS ROM installed... or just don't try to wipe when you have the ICS recovery installed?.. Like if I have an ICS ROM installed and flash back to an EL29 kernel, I can wipe then right?
blakjak220 said:
Are you saying dont wipe anything while you have an ICS ROM installed... or just don't try to wipe when you have the ICS recovery installed?.. Like if I have an ICS ROM installed and flash back to an EL29 kernel, I can wipe then right?
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yes in theory with a gb based kernel you should be able to wipe but I personally recommend odin'ing a full gb from and kernel then using recovery. I also recommend using calk's wipe zips because they seem to be much safer than CWM wiping directly.
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ICS safe?

Are the ics roms safe to flash? The 1st time I flashed a ics rom,i had probs. No recovery,glitchy and jus plain janky. Im sure they have come along way. Can som1 recommend a safe stable ics rom that also has rogue recovery or acs?
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If you want to go back to gingerbread use el29 restore get recovery then flash CyanogenMod 9 it is better than most roms based off leaks.
Here is the latest stock ICS.
http://forum.xda-developers.com/showthread.php?t=1694695
Give the devs a little time and you can flash a kernel with the recovery you want.
harley1rocker said:
Are the ics roms safe to flash? The 1st time I flashed a ics rom,i had probs. No recovery,glitchy and jus plain janky. Im sure they have come along way. Can som1 recommend a safe stable ics rom that also has rogue recovery or acs?
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They are safe to flash if you follow OP directions. Always flash from el26 cwm recovery and you're good. If you cant live without recovery, flash a touchwiz rom and use agat63s repack recovery.
SFhub just released an updated FF02+CWM repack built on GB code to avoid the eMMC lockup bug. However, you need to check the ROM and see if update-binary is corrected or not.
Please look for his post on this here:
http://forum.xda-developers.com/showthread.php?t=1694695&page=7
The other safe solution is the one that has been known - go back to EL26 and flash away from there. (GB doesn't have the offending code that causes the bug to be triggered.)
I've been using Calkulin's E4GT 2 v1.6 ICS rom since version 1.6 came out (FE22) and I haven't had a single crash or FC, and I've been getting good battery life.. I never even get close to dying and thats even with a couple hours of screen on time (games, facebook, lots of texting, ~1hour talk time).
I'd say go for it =) Just make sure you follow all instructions carefully! This ROM was very easy to flash.. I had been using Calkulin's GB rom (el29) and all I had to do was wipe my caches and flash his .zip file in CWM.. bam, ICS ^_^
When you say safe what is it you really mean... cuz its all SAFE if you know what you are doing..
Well nothing is ever 100% safe. There is always a small chance you could screw things up somehow (the eg31 deal back when the phone was first released, the emmc bug, etc). There are always possible unknown side effects that don't become obvious until down the line.
That said, if you are careful, the odds of doing something irreversible are extremely small on a phone that has been out for a few months or more.
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installing a new ROM

I already have Calkulins E4GT 2 1.6 installed. If i wanted to try a different rom do i just install the new one and it should work?
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Its always advised to wipe the phone clean when going from one ROM to another, you can usually keep your data when upgrading the same ROM
willjr0k5 said:
I already have Calkulins E4GT 2 1.6 installed. If i wanted to try a different rom do i just install the new one and it should work?
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Wow, NO, don't 'just install a new one.'
There are some very good posts about how to properly switch ROMs - most of the ROMs OPs specify how they recommend you go about installing their particular ROM.
Some suggest going back to the EL26 Kernel, others the TWRP kernel and other the 'safe' kernels by Agat and Chris41G.
Choose your ROM. Read the developers recommendations AND read through the posts regarding that ROM. Failure to do so will leave you with poor performing phone or worse an expensive paperweight.
If you want to step up to the latest ICS stock try sfhub's one-clicks, since you are already on an ICS leak you could try the 'no-data' version and see if you can keep your data intact. Not always recommended but it's worth a try. Then use his Autoroot to add CWM with a safe recovery (Agat's).
Then use CWM to flash away - as long as you follow the developers advice.
Good luck.

[Q] regarding Google edition roms

My apologies if this has been asked before. But from my understanding the Google edition still has all the touch wiz framework. I was Wondering if you had to Odin back to stock in order to flash a modified stock Rom? I had to do this on my s3 because it always gave me problems. This is an issue for me now because my hard drive on my laptop is fried and have no access to Odin besides mobile Odin.
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A modified stock ROM will be packaged to flash in recovery. Just be sure to properly wipe since you will be going back to TW.
So all I have to do is do a super wipe, system and all. And I should be good to go? Can I nandroid back to my current set up if I don't like the Google edition Rom? Or will that cause complicatIons that will require me to Odin back to stock?
I know it's a dumb question. But I want to Bork my Device
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MacTheRipperr said:
So all I have to do is do a super wipe, system and all. And I should be good to go? Can I nandroid back to my current set up if I don't like the Google edition Rom? Or will that cause complicatIons that will require me to Odin back to stock?
I know it's a dumb question. But I want to Bork my Device
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Nandroid is fine, and doesn't need any wiping, it does it before the restore, but I wipe anyways.
If you just want to flash a different ROM, for going from ROM to different ROM, it's best to:
Factory Reset
Wipe both Caches
Format /system
Flash ROM or ROM and gapps if it's AOSP
To upgrade a current ROM to an updated version, if the base version of Android hasn't changed, you can dirty flash, which is the exact steps, minus the factory reset.
Okay thanks, I was just curious. Because I can't currently restore from Odin because I don't have a pc.
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