Downgrading i9000 to eclair or froyo - Galaxy S I9000 Q&A, Help & Troubleshooting

I want to downgrade my Galaxy S i9000 from AOKP ICS to eclair or froyo. I need to do this to help test some of my apps on old android versions.
I'm hoping I can do this from clockwork mod.
Preferably stock or rooted stock. What is the best way to do this or which ROM should I pick.

sammobile.com has stock roms for the I9000 (the oldest ones are for Froyo 2.2.1).
You can't flash them through recovery- instead you have to flash through odin.
You'll be given a zip with three files inside it (.tar or .md5 files) and a .pit file.
I'm sorry but I have no idea how to flash stock roms with three files- every time I've only needed to flash in one for 2.3.6 :/
These forums though will have something somewhere... That's as much as I can help sorry :/

Related

[Q] How downgrade Galaxy S to froyo from gingerbread?

My i9000 is on i9000xxjvb stock rom. I flashed modified kernal to make it rooted and cwm enabled. I am unable to move appear from phone memory to internal SD. An error message appears " failed to move application, not enough memory."
To get rid of this, i tried Hamsterbread 1.1 custom rom, but problem not solved. I used every method from hard reset to wipe cache, data and more. But nothing happened.
Now I want to downgrade to froyo. I don't know how to do this? Please, tell the procedure in detail and step by step. I belong to India. There is no 2.2.1 version available for India. Can I go for other regions versions? or I should stick with i9000ddjp6 which is latest verison for India. Thanks
i havnt tried downgrading. but i think you could try flashin back using odin with bootlooder froyo.
i live in india but use european firmware an see no problem
^^ Im not sure about this. I think you can just flash a Froyo ROM via CWM. I am not sure about this. It always makes sense to search around before you do either. Good Luck!
If you flash speedmod (or whatever froyo kernel you choose) through odin, then simply install whatever rom through cwm via zip file. The downgraded froyo rom doesn't need bootloaders, the gingerbread ones are backwards compatible. Tried it myself and it worked without a hitch.
Just flash any stock firmware through ODIN with pit and repartitioned tick and you are good to go.
Makes sense to open eyes and read the post that tells you how .Or even use the search button .
http://forum.xda-developers.com/showthread.php?t=1033781
jje
just download a stock froyo firmware and flash with odin. there are tutorials all over the place
just flash froyo kernel using odin and then enter clockwordmod install zip

Flashing Back

I currently flashed Darky Rom 9.6 on my phone and live in Aus. To do this i installed a japanese rom and then a kernal and then the darky zip. I want to go back to stock so i can flash the official gingerbread to try it on the phone. Do i have to do anything special due to flashing a kernal and another rom? Is there a quide on how to go back as i found a quide to flash to darky but not back to stock.
well you need to flash a stock firmware with all 3 files and 512 pit.
this will remove any file system conversion caused by darky / voodoo kernel.
head over to www.samfirmware.com and find the firmware for your region, flash it through odin ( instructions on site ) and then take the path to gingerbread
it is also better that you remove/disable any lagfix if it has already been applied.
also remember that after installing the stock rom, you will then need a stock gingerbread rom with a bootloader..
good luck

New Roms

sorry for the newb questions, but i am finding way to much cross references for rooting and unlocking a bell vibrant could someone help me out I would like to put on a new rom pls.
1. Go to this thread and download JVT. Flash JVT with Odin and make sure re-partition is checked.
2. Go to this thread and download the CF-Root kernel for JVT. Flash the kernel with Odin
3. You should now have stock 2.3.5 with root and CWM installed. Reboot into recovery and use CWM to flash whatever custom ROM you want.
thanks very much just finished and it worked out very well.
2.3.5 and 2.3.6 why not jvu semaphore kernel 2.5.0 and @ oserx o.7.1 rum is the best and fastest rom I had

How to flash latest stock rom

I currently have a rooted phone with custom 2.2.1 based rom.
CWM recovery is also installed.
I'd like to know if I can flash a stock rom via recovery.
You need Odin/heimdall to flash a stock ROM. Look in the development section stickies, or do an official update
Sent from my CM9 ICS i897 Captivate
So if I downloaded I897UCKJ2.rar I can only flash it via ODIN ?
You are on Froyo bootloader...with froyo rom...for GB roms u have to flash GB bootloader...there is a whole thread in Dev section with different options to flash GB...I would suggest flash KK4 with bootloader and then Kernel with CWM built in...and u will be good...NOTE: Falshing bootloader might brick your phone...but u just have to do it once...
If you just want the latest "stock" gingerbread you can just use the samsung kies mini to get kk4 and it will give you bootloaders and the stock rom

[Q] boot loop after trying to get back to stock rom

hi everyone,
i used to have cyanogen mod 10 (4.2.1)
then i decided i want to get back to the stock rom 2.3.6 , so i tried to install a stock ROM GB for I9000 that i found somewhere online via Odin
the problem is that the device is now in boot loop.
my question is what should i DO?! to get it out from it
P.S
i found that there R many stock roms in the same versions to the same device but the difference between them is the name of the file, like:
I9000XWJVH
I9000JIJVG
I9000XFJVA
What is the difference ?!?!?
Thankyou...
http://forum.xda-developers.com/showthread.php?t=1583026
flash that in odin, then http://forum.xda-developers.com/showthread.php?t=1570488 flash that and you'll be on stock 2.3.6
when flashing the first one, make sure to check the 'bootloader update' checkbox in odin.
the problem you're having is that ics/jb, gingerbread, froyo etc have different bootloaders, which use different partition layouts, so when you tried to go back to stock, you still had the ics/jb bootloader, which couldn't find the partitions to mount them, hence the bootloop.
Thanks man

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