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Hi,
I recently disabled supercurio's voodoo lagfix on my Bell's I9000M with success (ie. everything's back under rfs). However, I still have his kernel on my machine. How do I revert back to the standard, stock kernel?
I'm quite new to the whole business of Android firmware "hacking".
You will have to flash the stock (JH2) kernal, but I do not know where to find the stock kernal. Maybe someone can provide a link to it.
rmanaudio said:
You will have to flash the stock (JH2) kernal, but I do not know where to find the stock kernal. Maybe someone can provide a link to it.
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It is my understanding too. I guess an update.zip with the proper kernel would be all the I would require and it wouldn't erase my system.
You can flash some of the custom kernals others have made into a update.zip. But if you want the original JH2 kernal, You will probably have to flash the whole ROM via Odin. I have not seen the original kernal in update.zip format, maybe someone else might get us a link to it. I would also like to get rid of Voodoo on my phone and go back to stock. I'm affraid of losing my internal SD.
rmanaudio said:
You can flash some of the custom kernals others have made into a update.zip. But if you want the original JH2 kernal, You will probably have to flash the whole ROM via Odin. I have not seen the original kernal in update.zip format, maybe someone else might get us a link to it. I would also like to get rid of Voodoo on my phone and go back to stock. I'm affraid of losing my internal SD.
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How do I flash with Odin the original JH2? Can I extract the required files from the Kies install directories? I don't mind reflashing everything.
daft.71 said:
How do I flash with Odin the original JH2? Can I extract the required files from the Kies install directories? I don't mind reflashing everything.
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If you are gonna flash it all...you might as well just flash the latest 2.1 which is JM8. The "how to's" can be found here: http://forum.xda-developers.com/showthread.php?t=723596 but I do not see where to download JH2 or JM8.
Here is where to download JM8 http://forum.xda-developers.com/showthread.php?t=780867
rmanaudio said:
If you are gonna flash it all...you might as well just flash the latest 2.1 which is JM8.
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I got the I900UGJH2.rar file and I'm currently flashing it with Odin. Wish me luck! First time doing that kind of thing.
Let me know how it goes and where you got the file. I will be doing this soon also.
Also, I think you have to repartition with 512 pit to get rid of the Voodoo. I dont know if uninstalling Voodoo with disable folder/file gets rid of th ext4 completely.
rmanaudio said:
Let me know how it goes and where you got the file. I will be doing this soon also.
Also, I think you have to repartition with 512 pit to get rid of the Voodoo. I dont know if uninstalling Voodoo with disable folder/file gets rid of th ext4 completely.
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Click to collapse
Just an update to say that the flashing went well and I'm now back to the state my phone was when I got it.
Hey guys I have a rooted captivate running froyo. I want to try the Cognition v2.3b3 rom with lagfix, but I no idea where to start. Do I need to flash back to stock or can I just load the rom? Also I was wondering about overclocking, can I do that with this rom? Any help is appreciated. I am new to android, came from a unlocked iPhone this is way better! Thanks guys
tygoerlitz said:
Hey guys I have a rooted captivate running froyo. I want to try the Cognition v2.3b3 rom with lagfix, but I no idea where to start. Do I need to flash back to stock or can I just load the rom? Also I was wondering about overclocking, can I do that with this rom? Any help is appreciated. I am new to android, came from a unlocked iPhone this is way better! Thanks guys
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you should be able to flash over but it is considered good practice to start from stock, also i think you need ji6 froyo before jj4 froyo which cog2.3b* are based on, so the accepted proper procedure is masterclear and flash jf6 from the one click installer get android id with android id changer, flash ji6, also a one click installer, and then flash cognition. all with odin. you can clockwork recovery flash cognition but it is another proceedure to root ji6. after cognition is installed reinstall android id changer and load the id from the stock rom.
i usually flash over without lashing to stock ect unless the flash over has issues. and overclocking is handled in the kernel you need to flash http://forum.xda-developers.com/showthread.php?t=828052
with odin, no .pit file needed just drop file in the pda slot and flash in download mode. overclocking is enabled by default so you need set cpu to manage it.
there is a link to an app to manage under volting, my settings are -50mv low and -75 high. it also handles the scheduler, i use cfq. anticipatory seems to work eqaully well. some suggest deadline and it may be better real world but i dont see it in benchmarks. and real world is too subject to placebo effect and coincidence.
this kernel also has a universal lag fix handled in clockworkmod recovery which replaces the stock recovery. best setting for that is no rfs jfs overkill but in the advanced settings disable bind to dbdata. it's fast! 17.299 mflops in linpack, and it's the first time that i have had a lagfix improve a linack score(at least it appears to)
Here is the steps that got me from ji6 2.2 to cog.
First if you don't already get titanium back up and back up all of your apps you don't want to loose and copy the file to your computer and remove external SD card if you have one.
Then i used the 2.1 version of odin one click to go back to 2.1 after that do a master clear then root your phone and down load rom manager. Using rom manager flash the clockwork recovory mod.
Next download cognition 2.3b3 then go back to rom manager and select install rom from sd card and find your cog rom you just down loaded and it will do the rest
Once cog is on your phone you can put you titanium backup file back on your phone and redown load titanium backup and restore all of your apps.
Sent from my SAMSUNG-SGH-I897 using XDA App
@ Dani897 I do have ji6 version of froyo. So I do need to flash back to stock 2.1 or can I flash cog with the version of froyo that I am running now? Sorry for the confusion here. I would like to keep running froyo if I can. Thanks guys
tygoerlitz said:
@ Dani897 I do have ji6 version of froyo. So I do need to flash back to stock 2.1 or can I flash cog with the version of froyo that I am running now? Sorry for the confusion here. I would like to keep running froyo if I can. Thanks guys
Click to expand...
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Check out the Cog wiki.
http://cognition.theidiotshideout.net/mw/index.php?title=Main_Page#Installation
If you have clockwork installed, you can install over any rom. I would clear data to be on the safe side, though.
kegobeer said:
If you have clockwork installed, you can install over any rom. I would clear data to be on the safe side, though.
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no you cant. it will only work if he has 2e recovery kernel. if it was the ji6 leak then it is running 3e recovery and no matter how hard you try, it wont boot into clockwork.
answer:
use the ODIN version of cognition. doesnt matter what rom you are on...
Ok so I am trying to flash cog via oden. I downloaded the file and am looking at the how to on the wiki but, in the wiki it says that all the files will be in the download Odin.exe PIT.pit PDA.tar PHONE.tar CSC.tar. The only files that I am seeing are the pda file the odin.exe and the pit file none of the other ones. Is this normal?
tygoerlitz said:
Ok so I am trying to flash cog via oden. I downloaded the file and am looking at the how to on the wiki but, in the wiki it says that all the files will be in the download Odin.exe PIT.pit PDA.tar PHONE.tar CSC.tar. The only files that I am seeing are the pda file the odin.exe and the pit file none of the other ones. Is this normal?
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Yes. That's what is supposed to be there. That's all you need for that particular rom
Sent from my Captivate
Cool thanks a lot for your help. Just to make sure before I do this. I did a back up using tibu, Im going to pull the sim, open odin, and flash. Is it really that easy or am I missing something? Thanks guys I really appreciate it.
tygoerlitz said:
Cool thanks a lot for your help. Just to make sure before I do this. I did a back up using tibu, Im going to pull the sim, open odin, and flash. Is it really that easy or am I missing something? Thanks guys I really appreciate it.
Click to expand...
Click to collapse
Its really that easy
Sent from my Captivate
Cool gonna do it now. Will post results
Ok just flashed and that went well, but it wont let me open any apps. For example when I try to open up tibu it tells me I have to force close. I also dont have 3g
i dont know if there that is a common issue, but im sure you will need to reflash. you may want to flash to stock.
it's a multi step procedure and annoying but it is usually safer , i guess i got lucky.
i dont know for sure if you need to flash ji6 before cog 2.3b, design gears may have fixed that, i didn't read the details of why it was needed.
i would;
(optional)master clear, remove sim and sdcard. you will loose everything including titanium backups and posibly nand backups. master clear is done with the phone booted normally.
flash jf6
flash cognition 2.2 by meathod of your choice (so you have root and clockwork recovery)
flash cog 2.3b3 in clockwork mod recovery.
I don't know iflosing every thing is worth it for me, I really do want to flash this rom and try it out, but right now seems risky, I flashed back to froyo that I was running before. I thibk I'm going to do some more research and see what I can find. Thanks for all your help guys
I recently updated and the 3g performance seems incredible slow compared to the stock rom. Is ther a reason for this or is there a stock rom dl out there that I could go back to?
Thanks
ke5tny said:
I recently updated and the 3g performance seems incredible slow compared to the stock rom. Is ther a reason for this or is there a stock rom dl out there that I could go back to?
Thanks
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It's because of the MODEM.. Use a different MODEM.. Try UGJL2
ok im a total noob to andriod. I can pretty much do anything with a computer.. SO is it the modem driv er on the flash that isnt playing well with the hardware? How does one update the modem settings?
Thanks
http://forum.xda-developers.com/showthread.php?t=835272
Good place to find some if the modems that are available. You want modems that are cwm updates.
Down load modem, move file to internal sd of phone
Boot into recovery
Install zip from sd
Choose zip
Select the modem file
I would suggest jk4
ok loaded jk4.... no change if not worse.... Where can i dl the original fl6 for cwm.... This really sucks.. im thinking i never should have flashed
ke5tny said:
ok the file is in a .bin.... how do i get it to load in recovery
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?????
The downloads are all zips. You flash the entire zip. Did you pull the modern from the zip?
Get into recovery by long poss on power select recovery from extended power menu
Try putting your phone in airplane mode, then restoring service
well that didnt work either. the jk6 jacked up phone calls too. heres the current incarnation on ATT
firmware 2.2
baseband i897ucjj4
kernel 2.6.32.9
cognition 3.04
Market is dog slow... if it will dl at all... I cant use the original stock modem with the 2.2 upgrade can i.
jk4 not jj4. That is not the modem I said to try
Jk4
i did use jk4. that was the one that hosed everything up. i couldnt call out but could txt. i went to jj4 just to get it working again i cant find the original modem rom anywhere
Like the others said. When you download the modem it will be a zip file. Leave it as is and copy it to your phone. Boot into recovery, choose install zip from sd, choose zip file, navigate to where you saved it it and flash.
Be careful changing modems. I9000 modems dont play well with captivate kernels. Cog is pure captivate, so if you flash jk4 modem you should probably flash another kernel, ie, Firebird or speedmod.
I can assure you that if you are in a good service area, Cog 3.04 kernel/modem combo are great. I would personally flash back to stock and start fresh.
Sent from my SAMSUNG-SGH-I897 using XDA App
My suggestion is to try another rom or flag back to stock
That's what i think im going to have to do. I just got a full titanium backup done. Stupid question is there any way to flash back to original config with cwm or rom manager
Yes and no. you can flash the jh7ota package that can be found in the development section.
If you were going to do so you must didable lag fix first. I am not suggesting this though.
If you are going back to stock, I would use odin. Do you know what build phone you have, located under battery, something like 1008
sn r1xzc87098a no 1008 anywhere under battery
It will be anywhere from 1006 to 1012
ok gutting it and doing a reflash to 3.04... will see what happens.
odin
get odin 3 1 click downloader. put your phone in download mode. then click Start. that will reflash back to stock JF6 firmware. then once booted back up. put it back into usb debugging then hit master clear. that will completely wipe out sd and put stock firmware back on. its too easy. Now if you sent phone back in to samsung they will still know you hacked it. Because in october ATT sent a firmware update to JH7 2.1 update 1. to get it back on to be COMPLETE out of box. download samsung kies. and it will update it for you. poof. now there is an odin 3 one click for leaked captivate froyo. it looks like stock but has more options and its froyo. uses ji6 modem. works very good for me. just have to get super one click root 1.6.5 to root phone and enable app side loading.
Hello Everyone,
First of all, let me thank everyone on this forum, because it's an endless source of information regarding our favorite gadgets. I'm pretty new to this so please forgive me if this is too basic.
I've searched the forum but couldn't find a clear answer to this. Here's my background:
I have an Euro Tab, and had a few updates via Kies, first to JJ7/JK5/JJ5 (CPW) and then to JMI/JMA/JM2 (CPW).
I rooted with z4root and then with SuperOneClick (on JMI, as z4 wouldn't work). I was a bit afraid of trying custom roms, but finally took the plunge because I was tired of waiting for official Samsung Gingerbread.
I started by patching the bootloaders on JMI, as instructed in the forum and flashed JQ1. I had a few problems, but I was able to solve everything and get GB running and then rooted with CF-Root
Of course, this is like an addiction and less than 24 hours after that, I flashed Overcome Hermes 2.0.1 with 3.1.0 Kernel, adjusted UV settings and installed a few Mods.
This is like having a new tab. it's responsive, battery is better and apart from a few minor bugs, it's really the greatest experience. Congrats to all the devs. This is what it should have been out of the box.
As I understand, OC Hermes 2.0.1 converted the file system to EXT4 while partitioning (please call me wrong if this is not true). On a friend's Galaxy S, he has the option to convert to EXT4 and revert to RFS on the CWM app which doesn't exist on OC Hermes (again, please correct me if I'm wrong).
Now the question(s). (finally) If I ever want to go back to stock (Froyo) either to try the official Samsung GB for my region when it comes out or if I have to send it to Samsung for some reason (knock on wood), can I just use Odin and flash a stock ROM (say JMI) with repartitioning with no problems or do I have to revert to RFS and then flash Froyo?
If so, how should I proceed to go back to RFS?
How can I confirm which file system it's using?
I've seen threads talking about going from Froyo to GB and back, but never with overcome, always with stock ROMs so, to avoid problems, I decided to ask this for a straight yes or no.
Thanks in advance for any help or comment. If this has been answered before, please link me to it. As I said, I couldn't find it through search.
Best, a.
I use chainfire's ext4conversion tool. It has the ability to switch to rfs. I am not on overcome rom so not sure it will work but its an apk available on xda forums, could give it a whirl.
As for the tool it works good.
Reverting to stock will get u back to rfs as well. (from memory stock gb files from overcome 2.0 rc1 were ok / going back to froyo had to use one of roto rom froyo versions ).
ezynow said:
I use chainfire's ext4conversion tool. It has the ability to switch to rfs. I am not on overcome rom so not sure it will work but its an apk available on xda forums, could give it a whirl.
As for the tool it works good.
Reverting to stock will get u back to rfs as well. (from memory stock gb files from overcome 2.0 rc1 were ok / going back to froyo had to use one of roto rom froyo versions ).
Click to expand...
Click to collapse
Thank you. It's amazing that just by searching what you referred in your post, I was able to find a lot more info on this.
For what I understand, Overcome is based on JPZ and there's no CF-Root for that. I think the tools apk can be used with CF-Root only, right?
Maybe I can flash JQ1 (or other ROM supported by CF-Root) and then convert to RFS if needed.
Now I need to know if I have to go back to RFS to flash a stock Froyo ROM.
Again, thanks ;-)
If you use odin + re-partition with the pit file then essesntially you are formating back to rfs. So any stock froyo rom will be ok. Cwm flash / update wont work. I suppose you have already have your original firmware or just download one.
ezynow said:
If you use odin + re-partition with the pit file then essesntially you are formating back to rfs. So any stock froyo rom will be ok. Cwm flash / update wont work. I suppose you have already have your original firmware or just download one.
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Click to collapse
That's what I thought, but wasn't sure. Being a noob has it's quircks
Thank you so much.
BTW, CF-Root is basically superuser+CWM+busybox. If I have these on Overcome, is it safe to assume the EXT4 tool extension for CF-Root will work on Overcome or should I expect other dependencies? I think CWM versions are different in OC and CF-Root.
You can basicly back to froyo rom
As about the ext4 to rfs , you can do that for overcome hermes , just go through cwm and then vodo and then disable it from there (lagfix) after you reboot your system will start convert from ext4 back to rfs and also u can do the same if u wanna back to ext4
Sent from hell to take your soul
k0sh said:
You can basicly back to froyo rom
As about the ext4 to rfs , you can do that for overcome hermes , just go through cwm and then vodo and then disable it from there (lagfix) after you reboot your system will start convert from ext4 back to rfs and also u can do the same if u wanna back to ext4
Sent from hell to take your soul
Click to expand...
Click to collapse
Thank you, k0sh.
It sure is simple when you know what to look for.
Cheers
k0sh said:
You can basicly back to froyo rom
As about the ext4 to rfs , you can do that for overcome hermes , just go through cwm and then vodo and then disable it from there (lagfix) after you reboot your system will start convert from ext4 back to rfs and also u can do the same if u wanna back to ext4
Sent from hell to take your soul
Click to expand...
Click to collapse
How much time that conversion usually takes? 5min., 10min?
Depending on how much data you have on your tab. If your internal memory is studded with apps it will take quite a long time (45 minutes was reported) as the system backs up your data then restores it after conversion. If the system has fewer data it will take less (5-10 minutes).
jykke78 said:
How much time that conversion usually takes? 5min., 10min?
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Click to collapse
for me last time , around 1hour and my tab didn't boot , so i just force reboot it during the convert and i was know that i have to reflash back , but i take the risk and boot it again and its start over the conversion and it takes 5 to 10 mins
This may seem like it's been asked before, but I haven't really seen a clear answer. I am currently on ICSSGS 4.3 and I want to go back to GB until the "encryption unsuccessful - reset android" bug gets ironed out. My question is do I need to reflash the bootloaders? My gut tells me no considering I came to ICS from KK4, but I'd rather check with the xda community first.
I've used the Himdall KK4 one-click while on GB, could I use it again to go from ICS to GB. Bootloaders, no bootloaders? Should I use Odin and select to re-partition?
I've seen conflicting answers in regards to re-flashing bootloaders. I know re-flashing BL can also hard-brick the phone. Makes me nervous playing with BL.
The last bootloaders I flashed were from att, I flashed them when I went to GB.
Any input is welcome.
As long as you currently have GB bootloaders, there shouldn't be a need for you to reflash them coming back to Gingerbread.
I have personally used a Heimdall one-click to go from an ICS build (Fusion) back to stock KH3 without bootloaders, and it worked just fine.
Short answer
is yes. Actually I couldn't use CWM GB ROM zip due to YAFFS2 filesystem of ICS. So Heimdall was the only way to go.
Apex or SauromKK4 are good candidates. After Heimdall you can CWM flash any GB ROM.
jmtheiss said:
As long as you currently have GB bootloaders, there shouldn't be a need for you to reflash them coming back to Gingerbread.
I have personally used a Heimdall one-click to go from an ICS build (Fusion) back to stock KH3 without bootloaders, and it worked just fine.
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Thanks jmtheiss for the quick reply. That's what I thought, but I wanted to double check. I'd rather ask now than have to deal with a headache later.
I assuming that flashing ICS over a GB rom didn't change my bootloaders and I wont have any problems.
bravomail said:
is yes. Actually I couldn't use CWM GB ROM zip due to YAFFS2 filesystem of ICS. So Heimdall was the only way to go.
Apex or SauromKK4 are good candidates. After Heimdall you can CWM flash any GB ROM.
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Click to collapse
Thanks for the input, bravomail. I remember reading about the file system difference between ICS and GB, I kind of figured CWM was out of the question. I'll charge to 100% and give it a shot in a bit. Thanks again for the reply.
Just successfully flashed back to stock KK4 via the Himdall one-click. Worked great. Thanks to brovomail and jmtheiss for the input, much appreciated.