Database Develop

[Q] Restore Galaxy S back to Original Android 2.1

Hi All,
I Upgraded my Samsung Galaxy S to Froyo 2.2. All seems well but the performance does not seem all that great as well.
If i want to restore back to the Standard Manufacturer Firmware (i was on JG4) that comes out of the box with the I9000 what do i have to do? Any help here would be appreciated.

Download the firmware from samsung-firmwares and flash your phone with odin. There is plenty of flashing tutorials about to show you how to do it. Although if you managed to update to froyo then you properly already know how to flash it again
Sent from my GT-I9000 using XDA App

Restore
Hello. I managed to get the firmware from samfirmware.com for the original 2.1 (Asian version) but I couldn't get it to follow through. There would always be an error with regards to MD5 or something. What do I do? Thanks

Ren Hayashi said:
Hello. I managed to get the firmware from samfirmware.com for the original 2.1 (Asian version) but I couldn't get it to follow through. There would always be an error with regards to MD5 or something. What do I do? Thanks
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Click to collapse
I have the same problem as well, any helps here please?

Alot of the the DXJG4 firmware out there is corrupted.
So, try download DXJF4 from samfirmware.com (and flash with Odin with 513 pit) then uprade to DXJG4 through KIES.
NOTE: If KIES says "Device version's cannot be upgraded". Then you need to change your product code back to "XSO" (Search the forum on how to change product code.... about editing the nv_data.bin file)
My Flash history:
DXJF4-->DXJG4-->XXJPK-->DXJG4

I'm pretty new....
The firmware versions you guys are talking about are I hope, all "software" version and not real hardware chip revisions?
thanks

why dont you just flash your phone with 2.2.1 or 2.3.3(latest).....i know 2.2 is quite unstable FW but 2.2.1 will help a lots......I dont think you need to downgrade the phone back to the stock FW to solve any problem

[Q] Still have supercurio's kernel after doing a disable lagfix

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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Click to collapse
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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Click to collapse
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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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.

XWJPA or XXJPO ?

So which is best and why?
Also, can I just flash the pda as with JPK to JPM?

dont like your current one? cos i see nothing then complains about whatever version they are using. one and a half month on jpk and theres nothing to complain here, I will change when i mess up or when everybody is calling it "the rom" =/

compuse said:
dont like your current one? cos i see nothing then complains about whatever version they are using. one and a half month on jpk and theres nothing to complain here, I will change when i mess up or when everybody is calling it "the rom" =/
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Welll it looks like the update is finally out, users in the UK are updating to JPO through kies, just want to be on the latest firmware.

Shocky2 said:
Welll it looks like the update is finally out, users in the UK are updating to JPO through kies, just want to be on the latest firmware.
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I'm in the UK and updated through Kies about 30 minutes ago, put me on Froyo JPA.

masumali said:
I'm in the UK and updated through Kies about 30 minutes ago, put me on Froyo JPA.
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So why are users getting both JPA and JPO? how can we be in different regions in the same country?
Also through kies is it formating the sd card?

Shocky2 said:
So why are users getting both JPA and JPO? how can we be in different regions in the same country?
Also through kies is it formating the sd card?
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Click to collapse
I suspect those getting JPA had installed FroYo via Kies nordic hack which changed their product code to XEE. I installed JPO via a different KIES hack before changing my product back to XEU.

I'm using JPO now, before I had JP6.
using oclf and almost done with installing all my apps.
seems to run very smooth. have not seen any thing yet.
Tried JPA 2 days ago (odin) but I messed something up so had to redo it.
and compairing JPA to JPO I would now say that JPO seems quicker.

Anyone know where I can get JPA so I can flash through ODIN? Kies is stuck on low battery...

crazykiddo said:
I'm using JPO now, before I had JP6.
using oclf and almost done with installing all my apps.
seems to run very smooth. have not seen any thing yet.
Tried JPA 2 days ago (odin) but I messed something up so had to redo it.
and compairing JPA to JPO I would now say that JPO seems quicker.
Click to expand...
Click to collapse
What's the product code for Globe? Thanks

Flashed JPO, not done a full reset yet but seems very simalar to JPM and GPS is still crap.

HarpingOn said:
I suspect those getting JPA had installed FroYo via Kies nordic hack which changed their product code to XEE. I installed JPO via a different KIES hack before changing my product back to XEU.
Click to expand...
Click to collapse
I had JP6 and it gave me JPA, I haven't hacked kies at all, flashed with odin.

[Q] Should I downgrade my Bell JK4 2.2 to 2.1 before it bricks?

Hey all you fellow sad bunch of Bell Galaxy owners,
I did the bell upgrade via kies, did factory reset, cache wipe, format sd card and so far my phone is running just dandy on the new froyo.
I did it because it was all official and now I see that they pulled the update! And looking at all these threads it looks like this will brick my phone in a matter of days simply because of bad software, not hardware.
Should I try to downgrade before I'm doomed? And where do I find the old bell files to do this odin thing?
Any advice/curious musings would be greatly appreciated.

Yes.
I had mine on jk4 for a day and then changed firmwares. No issues so far.
I'm running jpu now.

Thanks! Hey it's not clear to me as to what is the best route to do the downgrade for the i9000m, and which roms are compatible with this bell version, can I install any rom and be fine?
I have the idea that the i9000m is quite different from the other galaxy s variants.
Rom manager doesn't work on this phone so I guess my only option is odin?

From what I understand, failure is mainly caused by a data corruption on the SDCard when changing firmware. So I'd stay away from frecquent firmware change for now...the more you do it, the higher the risk is.
JK4 is still official, so if you get issue with it, you're pretty much covered by the waranty.

I did mine and its been fine no problems
Sent from my GT-I9000M using XDA App

Dusante said:
Thanks! Hey it's not clear to me as to what is the best route to do the downgrade for the i9000m, and which roms are compatible with this bell version, can I install any rom and be fine?
I have the idea that the i9000m is quite different from the other galaxy s variants.
Rom manager doesn't work on this phone so I guess my only option is odin?
Click to expand...
Click to collapse
Rom Manager won't work on JK4 stock because it installed 3e recovery which checks that update.zip files are signed before running them. If you choose to stick with JK4 and want to pursue Rom Manager, your best bet is probably using a kernel which has Rom Manager built in. For example, I flashed SpeedMod Kernel k10j on one of my phones (check the i9000 dev forums).
If you choose to "downgrade", use Odin. JK3 (2.2) and JH2 (2.1) are Bell specific firmwares. Alternatively, using the reg hack solution might work (I've never used it myself so can't offer help). Let us know if you need help with Odin or flashing an earlier firmware.

How do I downgrade my Bell Vibrant? I have 2 Bell Vibrants.. 1 already got the SDcard error 3 days after updating to 2.2.. My second one is still working (2.2) and I want to save it! Please show me how to safely downgrade back to 2.1

Bricks were happening before Froyo 2.2 (JK4) came out of the official channel (Kies).
Nobody can say for certain that it has something to do with JK4 or with an internal hardware issue that is a ticking time bomb. If your phone is working fine on 2.2 (like mine), enjoy it, otherwise send it back to Bell for repair when it dies.

bimmerboii said:
How do I downgrade my Bell Vibrant? I have 2 Bell Vibrants.. 1 already got the SDcard error 3 days after updating to 2.2.. My second one is still working (2.2) and I want to save it! Please show me how to safely downgrade back to 2.1
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Click to collapse
1) Verify you have Recovery and Download mode still working (3 button combo).
2) Remove any lag fixes if you have applied them and download the UGJH2 PDA from Samsung firmware website.
3) Start Odin and put the JH2 firmware (tar file) in the PDA section.
4) Put the 512 pit file that came with Odin install in the PIT section.
5) Click Re-partition.
6) Stop Kies if running and connect phone to USB cable.
7) Ensure that Odin recognizes the phone in the ID:COM section.
8) Click Re-Partition and hit Start.
9) Pray that it works, wait for it to reboot and wait for it to startup, it may take longer than normal for the first boot.
I'm not responsible if it does not work out for you.... Personally, if you have it working on JK4, I would leave it well enough alone.

Thanks for giving the step by step guide.. I am experiencing some FC's on JK4.. I think it's on it's way to getting bricked.. I wana put back JH2 as soon as possible

I went back to JK3 as I've had no problems with it and it's given me the best battery life. Its currently sitting at 84% remaining battery after 12 hours use.

xedd said:
1) Verify you have Recovery and Download mode still working (3 button combo).
2) Remove any lag fixes if you have applied them and download the UGJH2 PDA from Samsung firmware website.
3) Start Odin and put the JH2 firmware (tar file) in the PDA section.
4) Put the 512 pit file that came with Odin install in the PIT section.
5) Click Re-partition.
6) Stop Kies if running and connect phone to USB cable.
7) Ensure that Odin recognizes the phone in the ID:COM section.
8) Click Re-Partition and hit Start.
9) Pray that it works, wait for it to reboot and wait for it to startup, it may take longer than normal for the first boot.
I'm not responsible if it does not work out for you.... Personally, if you have it working on JK4, I would leave it well enough alone.
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is this likely the best way to get an i9000m that has been upgraded to 2.2 to have e2 recovery? Also where would i download the JH2 rom file?

AdamArchibald said:
is this likely the best way to get an i9000m that has been upgraded to 2.2 to have e2 recovery? Also where would i download the JH2 rom file?
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its all here http://forum.xda-developers.com/showpost.php?p=9776920&postcount=26
successfully downgraded to 2.1 will now upgrade to 2.2 JL2

I've been running JK4 since it got realeased and so far so good. Never had any probleme related to firmware. My phose is a new one got after my first one died using JPC so I don't think it's related to firmware but realy hardware.
Sent from my GT-I9000M using XDA App

[Q] How to Downgrade to Froyo 2.2 from Galnet MIUI

Hi,
Please can somebody tell me the steps of downgrading from miui to froyo 2.2.
I need to get my phone to service center.
Thanks

u can just flash GT-I9000_FROYO_FULL_PDA.tar
and u'll on 2.2.1

samiulislam16 said:
u can just flash GT-I9000_FROYO_FULL_PDA.tar
and u'll on 2.2.1
Click to expand...
Click to collapse
flash that with odin, 512 pit and repartition.