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I897UCKB1 - rooting & lagfixing

I used to run custom ROM serendipity 5.11. Decided to give the official stock froyo a try. So, I flashed it to JF6 and installed I897UCKB1 on my captivate. Now, I miss the root privileges and also the stock ROM is still not smooth. There is a big improvement from 2.1 but not there if I compare with serendipity. So, is there any way I can root and install lagfix on my stock I897UCKB1 2.2 captivate? Please help
Sent from my SAMSUNG-SGH-I897 using XDA App

antonyvijai said:
I used to run custom ROM serendipity 5.11. Decided to give the official stock froyo a try. So, I flashed it to JF6 and installed I897UCKB1 on my captivate. Now, I miss the root privileges and also the stock ROM is still not smooth. There is a big improvement from 2.1 but not there if I compare with serendipity. So, is there any way I can root and install lagfix on my stock I897UCKB1 2.2 captivate? Please help
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
There are many many threads going on here that covers this. Either get a custom ROM from Cog4 or Torch 1.5. If not then use SuperOneClickv1.6.5-ShortFuse and http://forum.xda-developers.com/showthread.php?t=870760 for lagfix

Same Here
I tried rooting the phone the traditional way and it tells me the update.zip is not e_signatured (or some thing like that) verified. How do we root the NEW Froyo Stock ROM??
Greatly appreciate any assistance on this!!!
Viper

Viper714 said:
I tried rooting the phone the traditional way and it tells me the update.zip is not e_signatured (or some thing like that) verified. How do we root the NEW Froyo Stock ROM??
Greatly appreciate any assistance on this!!!
Viper
Click to expand...
Click to collapse
The assistance was in the post right above your own.
The reason the old update.zip method does not work is because Froyo uses 3e recovery, which requires the update.zip files to be signed. The SuperOneClick root bypasses that and directly gives you root. After this you can install CWM, and flash the supercurio voodoo kernel, which gets you the lagfix, and rids you of 3e recovery, all at the same time.

rajendra82 said:
The assistance was in the post right above your own.
The reason the old update.zip method does not work is because Froyo uses 3e recovery, which requires the update.zip files to be signed. The SuperOneClick root bypasses that and directly gives you root. After this you can install CWM, and flash the supercurio voodoo kernel, which gets you the lagfix, and rids you of 3e recovery, all at the same time.
Click to expand...
Click to collapse
I was planning to do the voodoo installation right from phone. Looks like I cannot do that right? -----Unrooted I897UCKB1 froyo captivate
Sent from my SAMSUNG-SGH-I897 using XDA App

antonyvijai said:
I was planning to do the voodoo installation right from phone. Looks like I cannot do that right? -----Unrooted I897UCKB1 froyo captivate
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Yeah - I could not get it to work on the phone - so I went with OCLF which uses ex2.
It worked fine.

dozyaustin said:
Yeah - I could not get it to work on the phone - so I went with OCLF which uses ex2.
It worked fine.
Click to expand...
Click to collapse
How do I get OCLF?
Sent from my SAMSUNG-SGH-I897 using XDA App

antonyvijai said:
I was planning to do the voodoo installation right from phone. Looks like I cannot do that right? -----Unrooted I897UCKB1 froyo captivate
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
You can install the voodoo kernel via odin, but that can't be done straight from the phone. It is also packaged as a CWM flashable update.zip, so you could do it that way, but you still need a computer to root it first. Without root, you can't get into a non 3e recovery, and without that, you can't flash the package straight from the phone.

rajendra82 said:
You can install the voodoo kernel via odin, but that can't be done straight from the phone. It is also packaged as a CWM flashable update.zip, so you could do it that way, but you still need a computer to root it first. Without root, you can't get into a non 3e recovery, and without that, you can't flash the package straight from the phone.
Click to expand...
Click to collapse
Prior to the current stock 2.2, i used serendipity custom rom on my phone. i used AIO toolbox for captivate to flash serendipity custom rom. can i use the same tool to root my 2.2 phone? i am very new to this whole stuff. i see that this particular voodoo kernel provided significant performance improvement on the stock I897UCKB1 captivate. If you can provide step by step guidance that would be great. thanks

I'm rooted and have the 3e problem....i go into recovery with CWM but update fails...tried the 3e patch that accepts unsigned but sbin recovery is read only won't let me delete/overwrite....tried an emu to chmod but says permission denied lol....i must be missing something.... I'm familiar with os but can't seem to figure this. Only thing stopping me from voodoo lagfix is damn recovery file not being deleted
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ConeyKiller said:
I'm rooted and have the 3e problem....i go into recovery with CWM but update fails...tried the 3e patch that accepts unsigned but sbin recovery is read only won't let me delete/overwrite....tried an emu to chmod but says permission denied lol....i must be missing something.... I'm familiar with os but can't seem to figure this. Only thing stopping me from voodoo lagfix is damn recovery file not being deleted
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Then how did rajendra82 do this?
Sent from my SAMSUNG-SGH-I897 using XDA App

rajendra82 said:
The assistance was in the post right above your own.
The reason the old update.zip method does not work is because Froyo uses 3e recovery, which requires the update.zip files to be signed. The SuperOneClick root bypasses that and directly gives you root. After this you can install CWM, and flash the supercurio voodoo kernel, which gets you the lagfix, and rids you of 3e recovery, all at the same time.
Click to expand...
Click to collapse
I used superoneclick1.7 to root my phone. it ran and said the phone is rooted. Installed superuser. After that i downloaded ROM Manager and chose flash clockwork recovery ..it did the same. but when i get back into recovery using 3 button combo, it is still on 3e recovery and it is not allowing to run any .zip file. how did you do it? pls share the secret. i have the voodoo kernel ready to flash but i have no means to do it...come on buddy help me out

OP try this
root explorer
mount R/W
/system/bin
rename recovery to xxxxxrecovery
drop 3e recovery in this folder
reboot
done

tzabka said:
root explorer
mount R/W
/system/bin
rename recovery to xxxxxrecovery
drop 3e recovery in this folder
reboot
done
Click to expand...
Click to collapse
i reached until renaming recovery to xxxxxrecovery. but the problem is i could not see the folder /system/bin when i connect my phone to the computer..gave up...thanks for the help though..
if you can then pls give a little bit more help..i have always dropped .zip files in the main directory of the phone and have flashed custom roms before..this one is difficult for me...

Looks like I will never be able to put voodoo lagfix on my stock 2.2 captivate. Lot of help posted here but none seem to work for me. I may need more detailed step-by-step instructions.
Sent from my SAMSUNG-SGH-I897 using XDA App

antonyvijai said:
i reached until renaming recovery to xxxxxrecovery. but the problem is i could not see the folder /system/bin when i connect my phone to the computer..gave up...thanks for the help though..
if you can then pls give a little bit more help..i have always dropped .zip files in the main directory of the phone and have flashed custom roms before..this one is difficult for me...
Click to expand...
Click to collapse
the answer was already given to you....you need root explorer or super manager....this isnt done from your computer.

Is there a way to undo this and put the new recovery back without using odin one click and upgrading again?
Sent from my SAMSUNG-SGH-I897 using XDA App

rajendra82 said:
You can install the voodoo kernel via odin, but that can't be done straight from the phone. It is also packaged as a CWM flashable update.zip, so you could do it that way, but you still need a computer to root it first. Without root, you can't get into a non 3e recovery, and without that, you can't flash the package straight from the phone.
Click to expand...
Click to collapse
you can do it on the phone via the kernel flasher app from market

bames said:
you can do it on the phone via the kernel flasher app from market
Click to expand...
Click to collapse
The SGS kernel flasher app page in the market says "*lagfix detection is not finished". What does this mean? I am planning to flash voodoo lagfix kernel on my stock froyo captivate. Please let me know
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antonyvijai said:
Looks like I will never be able to put voodoo lagfix on my stock 2.2 captivate. Lot of help posted here but none seem to work for me. I may need more detailed step-by-step instructions.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Try Cognition 4, it's about as close to current stock with Voodoo injected. If you really miss any of the apps taken out, Designgears was kind enough to put them in a repository for you.

[Q] Samsung Galaxy S i9000 Darkys Rom problem

Hi all,
I was attempting to install Darkys Extreme Edition on my brother SGS (running Froyo 2.2.1) last night and had a number of issues, i am an experienced techy and familiar with flashing etc but i am still new to Android.
I managed to flash the Speedrom kernel onto his phone using Odin, i rooted with "super one click root tool" and installed Clockwork Rom Manager from the marketplace,i then dropped the "Darkys rom Extreme Edition v9.1.zip" onto the root of the SD card and entered recovery using the button combo and received the "could not verify whole-file signature" installation aborted, the file had not been opened as i read this will break the signature but instead i downloaded the rom again from a different source and had the same problem.
I then attempted the same process by asking CWM to install the rom on the SD card, same problem and then attempted it again by entering recovery through CWM and again the same thing happened. I did some searching online and managed to find out that he needs recovery 2e (he currently has recovery 3e)
So i figured it would be simple enough - download and flash eclair 2.1 through the phone, however when i checked his "about phone" i find i9000JPW and cant for the life of me find ANY reference or firmware online for "JPW"
So with that i have the following questions - can the experienced users here spot something i am doing wrong?
and
would i be able to achieve the recovery process by flashing ANY stock, Eclair 2.1 ROM through the phone (like JPY for instance) and then be able to install Darkys Rom?
I am grateful to anyone that could shed some light on this for me, i am not currently with the phone but if i can get some solid info i can go over tomorrow and have another crack at it, ive Googled this a lot and cannot find a solid enough answer as to whether the above suggestion will help or hinder in this case.
Cheers to all

Not sure if this helps as i am not much of a wiz but i think darky rom needs the darky app from the market to tell which modem and kernel to install.
Not sure if that's actually the problem but worth a try.

Stock recovery changed from 2e to 3e from eclair to froyo which is why cwm is having problems. I had the same problem with a vibrant that had been updated to 2.2. I flashed a TW Bionix ROM and soft bricked the phone. Find the right pit and tar files and Odin back to 2.1 and you should be fine. Check out Shorty's locker on Team Whiskey. He has lots of stuff in storage.
Sent from my SGH-T959 using XDA App

Thanks guys ill be sure to give this a go, gongshow how will i know which tar and PIT files to use? is there a repository somewhere where i can get them for JPW? or can i use any eclair 2.1 rom (and the tar/pit files) and flash that using Odin?

Download hardcores latest speedmod kernel and flash via Odin. That's all you need to get recovery 2e. Then install your favorite rom and enjoy.
Sent from my GT-I9000 using XDA App

ehtoeh said:
Download hardcores latest speedmod kernel and flash via Odin. That's all you need to get recovery 2e. Then install your favorite rom and enjoy.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Thanks dude, would that be "speedmod-kernel-k9a-256hz"?

thereverend86 said:
Thanks dude, would that be "speedmod-kernel-k9a-256hz"?
Click to expand...
Click to collapse
No k13c. Released Feb 20 I believe.
Sent from my GT-I9000 using XDA App

Thanks so much for that mate, ill download it now and have a go at flashing it tomorrow in Odin and will report back here

thereverend86 said:
Thanks so much for that mate, ill download it now and have a go at flashing it tomorrow in Odin and will report back here
Click to expand...
Click to collapse
if you are still on stock rom you can download darkys 9.2 resurrection rom. it has all the files you needed to flash it through odin. and your recovery will change to 2e. and also, there is a procedure guide how to flash.
Sent from my GT-I9000 using XDA App

after flashing resurrection download darkys 9.3 final put it on your internal sd card and flash it through cmw.. use Vol UP+Home Button+Power Button
Sent from my GT-I9000 using XDA App

aerobomb said:
if you are still on stock rom you can download darkys 9.2 resurrection rom. it has all the files you needed to flash it through odin. and your recovery will change to 2e. and also, there is a procedure guide how to flash.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Ah, this sounds like what i was looking for, thank you! i'll download that ROM and if i can get over there tonight ill attempt it tonight instead of waiting until tomorrow, ill go look up a tutorial for flashing roms in Odin too, since i have so far only flashed a kernel with it, thanks for all the help guys i really appreciate it, especially since i'm hoping to get an Android phone myself soon and i wont be able to leave it alone til its all custom!

Ok, all done! last night i flashed Darkys Resurrection 9.2 using Odin on my brothers SGS, downloaded Darkys configurator from the market and made any necessary changes and installed the speedmod kernel k13c total time taken from start to finish: 30mins
everything is running smoothly and exactly as he wanted it, a huge thanks to all who contributed help to this post in particluar:
ehtoeh - for putting me onto the K13c speedmod kernel and
aerobomb - for putting me onto the idea of flashing the Resurrection rom to lower recovery to 2e and then flashing Darkys 2.3 final.
You guys are awesome and i could not of done this without you, when i eventually make the move to Android ill be back and hopefully ill be able to help you guys out!

No worries bud. Hope your brother enjoys his phone. What quadrant scores did you get with darkys 9.3? I hit 1499.
Btw, you could have done it all in under 10 minutes. Speedmod k13c has CWM built in and gives you 2e recovery. Then just flash 9.3 directly. No need to go from 9.2 to 9.3 unless you really like flashing
Sent from my GT-I9000 using XDA App

I had similiar problem and found some file .exe which allowing install under 3e, but this is in my computer so i will edit my post 2morrow
Sent from my GT-I9000 using Tapatalk

[Q] recovery mode disappeared!

Hey guys,
I bought a Samsung galaxy s 4g the other day and immediately wannted to flash a ROM.
So I browsed around and found this ROM here
http://forum.xda-developers.com/showthread.php?t=1321611&page=4
I had the clockwork mod already(words were red) so I put it on my sd card and installed from zip.. Everything worked fine but while it starts up my screen gets full of colorful squigly lines before it starts.. But I figured its not a problem. The ROM is pretty kool...(im using it now) but when I try to go back into the clockword mod recovery...I get those same squiggly lines and then my phone restarts .... I tried quickboot but it wont work either...
My previous firmware was froyo 2.2. And this ROM is 2.3.6
Does that matter? Did I permanently damage my phone? Please...help wil be appreciated dearly.
Thanks

You have to install gb bootloaders... Search fbis251, he has made a guide to get it done
P.s
You have to select "reinstall package" from stock recovery to get into cwm recovery
Sent from my SGH-T959V using xda premium

Try this one
http://forum.xda-developers.com/showthread.php?t=1223765
I'm currently running 2.3.6 KJ6 with drhonk's KJ1 flashed over it, and custom debloater flashed over that. When I tried to go back to Froyo I had problems because recovery gave a signature verification error in and would not install any .zips. I flashed back to 2.3.6 via ODIN (which I assume included the gb bootloaders) and everything works perfectly, EXCEPT I cannot make a CWM backup of my current setup, only of specific apps and data I designate using Titanium Backup.
When I go into ROM Manager and select "backup current ROM" it says CWM is not installed! then it asks me to install, and gives choices for 4 phones none of which mactch exactly, just the galax si9000. So far I have been to scared to try this, I don't want to mess anything up and I KNOW clockwork recovery red is working... should I install this and will it make it so I can make a perfect backup of my entire phone?

Farlander said:
Try this one
http://forum.xda-developers.com/showthread.php?t=1223765
I'm currently running 2.3.6 KJ6 with drhonk's KJ1 flashed over it, and custom debloater flashed over that. When I tried to go back to Froyo I had problems because recovery gave a signature verification error in and would not install any .zips. I flashed back to 2.3.6 via ODIN (which I assume included the gb bootloaders) and everything works perfectly, EXCEPT I cannot make a CWM backup of my current setup, only of specific apps and data I designate using Titanium Backup.
When I go into ROM Manager and select "backup current ROM" it says CWM is not installed! then it asks me to install, and gives choices for 4 phones none of which mactch exactly, just the galax si9000. So far I have been to scared to try this, I don't want to mess anything up and I KNOW clockwork recovery red is working... should I install this and will it make it so I can make a perfect backup of my entire phone?
Click to expand...
Click to collapse
ROM manager should not be used on this phone, assuming you have a sgs4g.
If you Odin'd ravers stock kj6 you should have cwm recovery, giving you the ability to make a back up if not consider flashing it
Sent from my SGH-T959V using xda premium

Thank you guys for the help...everything's fine now!
Sent from my SGH-T959V using xda premium

Newbie Help

Ok just got this phone and have decided to go with Phoenix Blood rom, but how do i start? I have to be on froyo to root? Im coming from samsung epic on sprint that i flashed so im not completely retarded. Thanks for any help

Use superoneclick to root on froyo.
If your on 2.3.3 gb there's a flashable. Zip in development section to root.
Also you will want to use tgagunnmans nvflash method to install clockworkmod recovery in dev section.
Phoenix blood is a great choice btw, enjoy!
Sent from my LG-P999 using xda premium

You're still on Froyo? To my understanding it's a good idea to flash the OTA GB first so that you'll get the up to date baseband. Once that's done just go ahead and flash PB.

no im on gb jsut thought i had to go back to froyo to root, so i just flash clockwork mod then pb and thats it?

reeshmd23 said:
no im on gb jsut thought i had to go back to froyo to root, so i just flash clockwork mod then pb and thats it?
Click to expand...
Click to collapse
Yes, but make sure you're using NVFlash to get CWM. Don't use Rom Manager.

Easiest way is using the tool unlockroot. It supports gb on the G2X. Or you can use nvflash, whichever you prefer.
Sent from my LG-P999 using XDA App

redmonke255 said:
Easiest way is using the tool unlockroot. It supports gb on the G2X. Or you can use nvflash, whichever you prefer.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
If he wants to change Roms he will still need Nvflash regardless how he gets it rooted.

GTWalling said:
If he wants to change Roms he will still need Nvflash regardless how he gets it rooted.
Click to expand...
Click to collapse
Agree. Nvflash=bullet proof.

what is nvflash?

reeshmd23 said:
what is nvflash?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1056847
From that thread:
Flashing the custom recovery using NvFlash is the only way to ensure that in the case your phone will not boot up, you will be able to get into recovery to fix the issue / flash a ROM / restore from nandroid backup. That is what this app will do for you.
If you flashed the ClockworkMod recovery from ROM Manager it does not flash the recovery to your phone, it fake flashed it. The only way you can gain access to ClockworkMod recovery is through ROM Manager at that point. Using this method is the only way to flash recovery so it is persistent and accessible booting to recovery.
If you have already flashed through ROM Manager you can still proceed with this method. Flash Away!
(You can use both ROM Manager CWM and have the nvflashed version working together. You just access either or one at a time, having the nvflashed one means you can boot to CWM. Welcome to Tegra2)
Click to expand...
Click to collapse
Follow the link. This is a must for tegra 2 based phones. It is always better to be safe than sorry and it also allows you to do a ton of other things, such as making backups and flashing roms. Let us know if you need help. The phone is pretty much unbrickable after you do this. It gives you the ability to recover from any major mistake.

Its in the dev thread, it low level flashes clockworkmod recovery to our phones internal memory partition. You need to install apx drivers first in order for the g2x to be nvflashed.
Sent from my LG-P999 using xda premium

thanks for the help guys got it all set up

Just to add in, nvflash allows u to boot into cwm recovery whenever u want and u don't need to be next to a computer. I think that is how it worked for Samsung phones and Odin, where u needed a computer, but haven't used a Samsung phone so I could be wrong. Remember always make a back up of everything and play around with the different roms, not every rom works for everyone
Sent from my LG-P999 using xda premium

Actually Odin is just like nvflash. It is used to put cwm on you phone and to put the stock recovery back on.
Once you have cwm you can flash what ever rom or kernel without the need for root. Just back up your stock unrooted stock rom before flashing anything else.
If you do that you will have your own stock backup with no need of finding it in the forums if you need to go back to stock.
Sent from my LG-P999 using xda premium

Help! Trouble installing rom.

How do i determine if a rom with work in my phone? I have tried numerous methods posted in these forums. I keep running into the same problem. For some reason when i have booted into recovery, and then i select to reinstall data files., i get a permission error. Has anyone ran into this problem before. Also what is gingerbread and ice cream sandwich, do i need to update my phone to one of these dor i can install rom or are those rom themselves. Im totally lost and new at this, so any help would be great. Can some point me in the right direction.
Superuser
Model SGH-T959V
Firmware 2.2.1
Baseband T959VUVKD1
Kernel 2.6.32.9
Build FROYO.VUVKD1
Sent from my SGH-T959V using XDA

Look at the guide in the first link of my signature for help.
Sent from my SGH-T959V using xda premium

My phone already rooted is there a way to update from froyo to gingerbread without using kies? Also i copied my efs file but it seems to have nothing in it? Why?
Sent from my SGH-T959V using XDA

If you're rooted, follow the guide in the second link of signature - flash with bootloaders - then go back to the first guide for help flashing a custom ROM in CWM.
After you flash bhunven's KJ6 Heimdall One-Click make a nandroid backup in CWM to have a copy of your efs folder and copy to your computer.