i've upgraded to froyo JPO and like many, find it painfully slow.
i've also read about few customizations that make it faster, however, most of them are big packages of so many customizations that i don't even know what some of them do.
what i would like is a way to make froyo a bit more enjoyable but in a way that is fully reversible - i've got a better part of 2 year warranty and want to be able to revert to original ROM should I need to get it serviced. i don't need the best and speediest fixes that will change just about every part of android in my SGS, just something that will help make it usable and is relatively easy to revert in case i need to.
i've been using voodoo lagfix until now, but when i wanted to flash back the original kernel, it was an impossible mission. i just couldn't restore the original kernel from the backup (using ADB tar was not found) and i was stuck, no one anwered my question here and i couldn't find any addiotional help on the internet. i also didn't know which exact kernel i was using before so i couldn't just download it and use ODIN to be absolutely sure it's what i got in SGS when i bought it.
this is exactly what i would like to avoid this time.
also, is there a way to backup the current firmware so i can reflash it more easily should the need arise?
any suggestions would be much appreciated!
thanks!
Related
Hi everyone,
I really like froyo but I'm afraid it isn't as fast as JM8 with Voodoo. So I want to go back. Can anyone please explain what I have to do?
Do I simply flash back JM8 ?
I'm running a rooted JPK with OCLF v2
thx
Some people have had their IMEI's trashed downgrading from JPC (at least). The same effect from other new Froyo ROM's is a possibility too.
I personally recommend sticking with Froyo, just to be safe (I was considering downgrading too, but it isn't worth the risk).
Can anyone else help me?
Sent from my GT-I9000 using XDA App
Before anyone answers, how much are you willing to risk corrupting your IMEI? How much is eclair worth to you..
To the best of my knowledge, people have only managed to revert if they backed up /efs before installing Froyo. And the efs files apparently employ cyptography, so not sure they can be recreated.. I severely doubt there is any reliable easy procedure, and from what I've seen, any procedure would be somewhat risky..
I am aware that this helpful, but it is worth considering the risks..
http://forum.xda-developers.com/showthread.php?t=797585
exact topic here
make sure to create a full backup before you attempt anything
Just like on a PC
I flashed back to JM9 and Voodoo beta 4 without any problems.
Phone is flying.
Thx for all the replies.
Hi all, I hope you're not all tired of another noob posting up how-to questions. I come from a pretty solid background of writing modified firmware packages Motorola and Blackberry units, and writing custom themes for them both, so I am a bit familiar with the processes involved in rooting. Android is an entirely new beast though. I love it already, but I've also identified some things I'd love to be able to change. I've been reading everything I can in these forums for the past week, and I think I might be nearly ready to start diving into the root world. Yes, I've used the search a LOT Before I do root though, I wonder if you all might be able to add some insight into a few questions I haven't found the answers to thus far:
My rooting goals: remove the AT&T bloatware, possibly do a lag fix, and above all, do it the safest way possible. Baby steps first for me.
1) Rooting methods: Should I do the manual way, I found in that pdf guide on this site, the "GalaxyS_One-Click_Root_All_Models.zip" method, the mystery "update.zip" folder method, or the "one click root lag fix" method? Which is the safest and most tried and true for Stock 2.1 f/w, Baseband I897UCJH7? Also, what would be the best method to use if I wanted later to unroot?
2) Lag fixes: I've read that lag fixes can cause major problems when trying to undo them later on. Is there a lag fix that works well that is safer than others to load that can be removed easily? Are lag fixes even worth it?
3) Odin3: Am I correct in assuming that since I have JH7 that the most recent version of Odin is not capable of fully restoring my phone back to stock? I've been seeing posts from many people say that even using Odin, their phones get stuck during the revert process and cannot get back to stock. This is probably my biggest concern of all, in case I brick my phone. I've done that a LOT of times with Motorolas, and it's not a bit of fun trying to restore them.
Thanks very much in advance. Best wishes to all
The first piece of advice I have is make sure you have a cappi that you can get into recovery and download modes via the button combinations - if you can do this then you will be able to recover to a working configuration from just about any situation.
second, make sure you want to do this, because as you can get back to a "stock configuration" once you begin applying lag fixes or custom roms you will not likely be ever able to get back to your own stock configuration.
As for which rooting method - I have used and update zip and ryanza OCLF to root. Both of these methods are easy to unroot - at least until you begin applying lag fixes and/or custom roms.
If you are sure you want to move forward and root the very first thing you should do after rooting before you do any lag fixes or remove any bloat is get clockwork rom manager. Learn how to use rom manager and make a full nandroid backup of your phone before you do anything. If you have a good nandroid backup saved in a safe location then you can use this to get back as close as possible as you can to your own stock configuration later on.
Oden3 will get you back to a stock jf6 configuration. This will not be your stock configuration, but it is a working stock configuration.
Lag fixes do improve the lag in the file system some. However, before you play with any of them educate yourself as much as you can about the particular one you are going to try and use. I have applied both OCLF and voodoo and have been able to remove both of them. But if you don't follow the steps correctly you can have problems - after all with the lag fixes you are reformatting part or all of your data partition where the os is residing which is inherently risky. You can easily lose data and even soft brick your phone forcing you to use Oden3 to get back to a working state.
Lastly, I am running Cognition 2.2 beta 5 very successfully - and I do recommend it for anyone that has entered the rabbit hole of modifying this phone. And with my current config my phone is running so well that the lag fix is not needed for me anyway. My phone is running smooth and fast.
P.S. Just make sure you are not going to have any major regrets if things go wrong before you do anything at all, because any and all of these steps have some amount of risk associated with them. Make sure you are prepared for dealing with voiding your warranty and even though it is hard to brick this phone, it could still happen so be ready for that too should it happen.
i would agree, go with cognition 2.2. i only had my captivate for a day, and found it very easy to get it installed without any hassle.
Thanks for the info all. I've read about Cognition a fair bit and was wondering if I ought to go for it. What are the differences between it and the standrd Froyo leak?
A more pressing question: If I went to Cognition 2.2, would I be able to easily get the official release OTA and install it normally when/if it becomes available? Are there step-by-step guides out there for getting that release onto and off of the phone? I'd hate to get Cognition on there and find out that i couldn't easily get it back to a state where I could get the full deal on there. I've read some horror stories about just that lately...
charging rhinos said:
Thanks for the info all. I've read about Cognition a fair bit and was wondering if I ought to go for it. What are the differences between it and the standrd Froyo leak?
A more pressing question: If I went to Cognition 2.2, would I be able to easily get the official release OTA and install it normally when/if it becomes available? Are there step-by-step guides out there for getting that release onto and off of the phone? I'd hate to get Cognition on there and find out that i couldn't easily get it back to a state where I could get the full deal on there. I've read some horror stories about just that lately...
Click to expand...
Click to collapse
If you are wanting to get OTA updates then I wouldn't even root your phone - while it is possible to still get OTA's after rooting, once you begin modding (lag fix, or custom rom) you oare increasing making your phone less and les compatible with any OTA available.
NOTE: I personally will not ever apply an OTA myself - but rather will wait for someone else to create a custom mod of any OTA feature I like - them donate that dev a few dollars and use their mod.
Im getting my cap this Friday, I was going to post the same thing OP. Looks like cog 2.2 is the way to go when i get it.
I have not specifically found this issue anywhere so hopefully when we can find the answer it will help alot of people looking to install Voodoo in the future.
As the name suggests, I need to install the Voodoo lag fix on a Froyo I9000 with minimal risk and hassle as I use my phone for my business so can't be without it for even a day, and don't know enough about the intricacies of the OS to be able to dig myself out of a hole I might get myself into.
So I wanted to check if anyone has done this before, and if it will work/is the right way to go about this. I dont want to use Odin it is too risky IMO.
My phone is currently stock, and unrooted. Is this the correct process?...
NB. Build Number: FROYO.DTJP5, Baseband: I9000DTJP3
1. Root using TGA_gunnman's one-click tool, info on which can be found here: addictivetips dot com /mobile/how-to-root-and-unroot-samsung-galaxy-s-i9000-with-a-single-click
2. Install Clockworkmod, further info can be found here: addictivetips dot com /mobile/what-is-clockworkmod-recovery-and-how-to-use-it-on-android-complete-guide
3. Use CWM to flash voodoo (found here dl.project-voodoo dot org /stock+Voodoo/update_zips/ , or here dl.project-voodoo dot org) P. S. how do we know which one to use/is the right one for our phone?
Any verification or elaboration on these steps would be greatly appreciated!
P.P.S. I know there are multiple ways to possibly do this, but I am looking for the process that requires the least hassle & expert knowledge, and first and foremost the lowest amount of (bricking) risk.
Well you should probably check you have download mode and recovery button combos working first(vol up, home, power for recovery/vol down, home,power for download(do a battery pull to get out of it). Then to be safe after rooting you should back up the EFS, search to find out how and what. Then your method seems fine(not the addictive tips has a separate page for installing CWM on the i9000). Personally I think it would be easier to use Odin, it's quicker and definitely less hassle, and if you do make a mistake Odin is normally your backup, if you know how to use it you should be able to get yourself back up and running.
Thanks heaps for the info shrapnel, I have a bit more reading to do..
I will do some further research and come back with an updated process, hopefully one I have tried and tested myself!
In the meantime if anyone has any further input to share, I am definitely listening.
So once you have installed the Voodoo kernel(The kernel is like the core of the OS which controls between software and hardware) you have CWM, and with that you can install new rom's(Only froyo ones) and change all sorts of things. And I think the kernel itself has the option to root in it(I used to use Speedmod so I'm not to familiar with it). So good luck and be sure to ask anything before you flash anything
I have been trying to find answers for a week now and have found a lot of info. The problem is most of the info is contradictory and I'm not really sure which is good and which is not. I currently have an AT&T Samsung Captivate, firmware ver 2.2, kernel ver. 2.6.32.9 build# FROYO.UCKB1. I believe that is the stock At&t froyo build. It is rooted, I do have SGS tools (which I don't really understand what all it can do for me) and Titanium backup (which I've not tried to use yet for fear of breaking my phone). I run 91PandaHome and a bunch of apps I like.
My problem is that the phone sometimes is just really sluggish, certain programs really kill it. For example, I have PlantVsZombies which mostly runs ok, but sometimes slows down and worse 3 out of 5 times I play will not close. I have to power/volume up reboot to get out of the game. Other programs occasionally do this to me, but not as often.
I've been reading up and see that there are lagfixes, and understand that samsung apparently chose a ****ty file system, but I don't understand android well enough to know what's safe. What I want to know is what is as of today the safest, easiest way to fix the lag. I think I am going to be told something that changes the file system to ext4 is what I want, but I really don't understand what will be safe to use for that. I thought I wanted OneClickLagFix, then I found that maybe Voodoo was what I wanted, and now it seems that neither is currently being developed. Reliability, ease of transition and ease of putting it back to stock are important factors for me.
Suggestions, links and general help will be greatly appreciated.
Try going to a custom rom where all of that is done for you. Since you are new to this, I suggest you go look up the rom Serendipity 6.4, it's very easy to install and has it's own thread in the development section.
fianor said:
I have been trying to find answers for a week now and have found a lot of info. The problem is most of the info is contradictory and I'm not really sure which is good and which is not. I currently have an AT&T Samsung Captivate, firmware ver 2.2, kernel ver. 2.6.32.9 build# FROYO.UCKB1. I believe that is the stock At&t froyo build. It is rooted, I do have SGS tools (which I don't really understand what all it can do for me) and Titanium backup (which I've not tried to use yet for fear of breaking my phone). I run 91PandaHome and a bunch of apps I like.
My problem is that the phone sometimes is just really sluggish, certain programs really kill it. For example, I have PlantVsZombies which mostly runs ok, but sometimes slows down and worse 3 out of 5 times I play will not close. I have to power/volume up reboot to get out of the game. Other programs occasionally do this to me, but not as often.
I've been reading up and see that there are lagfixes, and understand that samsung apparently chose a ****ty file system, but I don't understand android well enough to know what's safe. What I want to know is what is as of today the safest, easiest way to fix the lag. I think I am going to be told something that changes the file system to ext4 is what I want, but I really don't understand what will be safe to use for that. I thought I wanted OneClickLagFix, then I found that maybe Voodoo was what I wanted, and now it seems that neither is currently being developed. Reliability, ease of transition and ease of putting it back to stock are important factors for me.
Suggestions, links and general help will be greatly appreciated.
Click to expand...
Click to collapse
Just a few quick things:
Titanium backup is a good friend to have on your phone. It won't break it - it will just take snapshots (for lack of a better phrase) of your apps so that you can restore them later if you need to.
Most lagfixes are cooked into kernels, so using lagfix will most likely go hand-in-hand with flashing to a custom rom. Not that you can't lagfix stock, but statistically speaking, lagfix will be done with a new kernel via the Clockworkmod Recovery Menu.
As for general fixing of lagginess... (READ UP FIRST) Flash a custom Rom (READ MORE). Most of the problems you're experiencing (ARE YOU READING UP ON FLASHING?) should be fixed by flashing (DO MORE READING) a custom rom. Do some research on roms and pick one that you think you'll like. (Note - don't post questions asking which one to do, it tends to be a bit of a touchy subject on the forum.) If you're wanting to be cautious, it would be safer to stay with a Froyo-based rom, as they're more tested and there's less danger involved (specifically, you don't have to flash bootloaders, which is the area where you can get a real brick).
Oh, and (shameless self plug) if you need to know what different terminology and items on the forum mean, just click the link in my signature.
jmtheiss said:
Just a few quick things:
Titanium backup is a good friend to have on your phone. It won't break it -
Click to expand...
Click to collapse
Actually, it CAN break your phone if you don't know how to use it. Backing up is safe, but never, ever restore system data with TiBu when changing ROMs and only restore app data you know is safe.
I would recommend staying away from any Gingerbread-based ROMs until you have a better understanding of the phone and the process. Andromeda 3 is a good choice for a Froyo-based ROM and is very easy to flash, but do your research on the process before you attempt it. Almost any custom ROM will have a lagfix in the kernel and performance will be noticeably better than stock. You will likely have to redo your root after installing a new ROM, so read up on that process, too.
jmtheiss said:
As for general fixing of lagginess... (READ UP FIRST) Flash a custom Rom (READ MORE). Most of the problems you're experiencing (ARE YOU READING UP ON FLASHING?) should be fixed by flashing (DO MORE READING) a custom rom.
Click to expand...
Click to collapse
I lol'd at the "()" parts
To build on jmtheiss post. For "reliability" look for a KB1 based ROM as this is what your phone is currently running, and is the newest version of firmware written specifically for the AT&T captivate. You won't come across any major issues that make the phone unusable, nor any "annoying" bugs. Then if your feeling more adventurous, and have gotten a solid understanding of the process of flashing ROMs, look to I9000 based 2.2.x ROMs, and lastly 2.3.x based ROMs.
For "ease of transition" start by getting the SGS Kernel Flasher or Heimdall to change the kernel. From there you can get past 3e recovery and you'll be free to make other changes.
For "ease of putting it back to stock" first find out what is your stock. Since this phone technically has 3 different "stock" firmwares. Then get a copy of that firmware (and steps on how to flash it) and keep it on your computer, in a location you'll be able to find easily in case of problems. Depending on how far "to the dark side" you go, will effect just how much of the "stock" files you'll need to keep as backups.
Personally I'd suggest this ROM as it's whats currently on my phone. Many have started off with Cognition and it's still a crowd fav. Both are KB1 based ROMs
I am an HTC user and always run rooted so I apologize for my ignorance to the ways of the Captivate but I am helping my sister-in-law with her phone and only have tonight to get her up to date. she is currently on Cognition 4.1.1 on Android 2.2 and I would like to get her a fresh ROM that is very stable (i may not get to fix phone for awhile if she has issues). Can anyone help me or point me in the right direction on which ROM is best and what is the best method (and easiest) to flash to it? If memory serves correct she is able to get into download mode so no worries there. And one more FYI, unfortunately the computer with all the files I used to help her out last time I no longer have. Fried motherboard so was unable to recover any files. Any help would be appreciated.
edit: the phone is also on Clockwork 2.5.1.3 with Voodoo Lagfix.
Pm sent
10 char
I used Firefly for a really long time. It's by no means new, but it runs great, looks AMAZING (including crazy nice stock wallpapers), and if you really don't know what you are doing, you might want to avoid flashing a gingerbread rom (where you could mess up the bootloaders causing you to brick the phone). And the ICS roms are still a little unstable so you might wanna avoid those as well. The Firefly thread has really detailed instructions too. Nothing wrong with good ol' Froyo! http://forum.xda-developers.com/showthread.php?t=914284
Thanks man. I finally got gingerbread loaded up and haven't heard anything back from her so all I good I assume.