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How to backup the existing/original ROM?

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#1
super-hornet

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Hi there... New to this forum and still searching this forum to find whether the similar question has being asked and answered before.

The question I'm asking is:
How do I backup my existing ROM?

I just upgraded my Omnia i900 firmware to the latest of i900DXIA5/DZIA5. It is an official release from Samsung. I just read somewhere that it is advisable to backup the original ROM before updating the ROM. I didn't realize it can be backup.

SH

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#2
Jedrek

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Good Question,
I have PDA:i900DFHL1 Phone:i900XXHL1 (Australian Version) and I wouldn't mine to backup the ROM before flashing.
Jedrek

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#3
lastnikita

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here is a ROM dumper for i900.

It's only tested on a clean WinXP computer :(
let me know if it works, and I will open a new topic for it.

I'm not sure yet how to reflash properly, but I've already reflashed using another os.nb as a base, I think it should be enough.
I did backup 2 files because I'm not sure yet which one I will use for the flash method. Both should contain your ROM.
Still trying to find how to flash back properly, but I miss time these days..
maybe at this time there will also be some problems with bootloader, because it's changed since the first ROMs..

note that it will only dump your PDA part, I didn't find how to dump the PHONE part nor the CSC

First install the .cab and reboot your device.
Then run the dumper on your PC and follow instructions.
Once done you should remove the cab (or flash your device !), as it adds a shortcut in startup to go to flight mode.
You can even not install it and modify the reg key by yourself.

I can upload a demo video if needed, but I don't think so B)

Attached Files


Edited by lastnikita, 13 March 2009 - 12:36 AM.

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#4
lastnikita

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I made a video here.
Please leave feedback !

Edited by lastnikita, 12 March 2009 - 07:30 PM.

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#5
lastnikita

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if you download and try, please leave feedback.

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#6
bobobird

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Excellent work there lastnikita, lets test this...

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#7
cojox

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Maybe paKo777 could help U with CSC part

Good work.

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#8
bt1_bt2

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hello,lastnikita
i have try your dump and it works but now how to flash, did you have a tool to do that?
thanks for your answser.

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#9
lastnikita

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hi, no spare time now but I'll try after I've released the new kitchen..

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#10
Edzz83

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Hey mate, thanks for the dumper works a treat.

I can tell your pretty busy, but wondering if there was any update on restoring the backed up ROM.

Basically ive been having issues with reception on my i900 and tried a few things am thinking it may be hardware, in which case to get warranty i will need to re-flash with the backed up 'vendor' firmware.

No hurry at the moment tho still doing more research into the problem, will probably end up being carrier issues, they have not been to reliable recently.

Cheers ;-)

hi, no spare time now but I'll try after I've released the new kitchen..


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#11
aaak2000

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if you download and try, please leave feedback.



hi lastnikita,

i have been trying to use your dumper but with no success.
the problem is that my omnia auto disconnecting from my pc after 3-4 min.

i belive that your dumper works fine and it just my omnia problem.

if you have any suggestions about how to make my omnia stay connected via usb
so i can dump it.

10x

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#12
lastnikita

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if you intend to flash it with another ROM after backup, then you may want to try a hard-reset.
if not, the first thing I'd try is doing it on another computer !

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#13
s0cks

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Nice work lastnikita...

But how to extract .raw file? I mean, how to get csc, pda, xip... etc?

Thanks!

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#14
apareja

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here is a ROM dumper for i900.

It's only tested on a clean WinXP computer B)
let me know if it works, and I will open a new topic for it.

I'm not sure yet how to reflash properly, but I've already reflashed using another os.nb as a base, I think it should be enough.
I did backup 2 files because I'm not sure yet which one I will use for the flash method. Both should contain your ROM.
Still trying to find how to flash back properly, but I miss time these days..
maybe at this time there will also be some problems with bootloader, because it's changed since the first ROMs..

note that it will only dump your PDA part, I didn't find how to dump the PHONE part nor the CSC

First install the .cab and reboot your device.
Then run the dumper on your PC and follow instructions.
Once done you should remove the cab (or flash your device !), as it adds a shortcut in startup to go to flight mode.
You can even not install it and modify the reg key by yourself.

I can upload a demo video if needed, but I don't think so <_<


First off, thanks for your work.
Once endorsed the rom, as once again put on the OMNIA?
I already have files os.nb and Part02.raw the matter as Flash omnia with these files?
Thanks again
Sorry for my English pesimo :)

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#15
erichkooi

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HI,
I able to dump 2 files os.nb and part02. What should I need to do next to make it flashable to my phone back?

Please help.


First off, thanks for your work.
Once endorsed the rom, as once again put on the OMNIA?
I already have files os.nb and Part02.raw the matter as Flash omnia with these files?
Thanks again
Sorry for my English pesimo <_<


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#16
lastnikita

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But how to extract .raw file? I mean, how to get csc, pda, xip... etc?

can't remember right now if it's only possible.
I extracted a dumped ROM already, but I'll have to check the steps..
meanwhile, you can check xda-dev for more infos about all this !

ps: as I don't need it, I won't work on flashing the ROMs back unless I get much more spare time.... or good money <_<

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#17
bt1_bt2

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can't remember right now if it's only possible.
I extracted a dumped ROM already, but I'll have to check the steps..
meanwhile, you can check xda-dev for more infos about all this !

ps: as I don't need it, I won't work on flashing the ROMs back unless I get much more spare time.... or good money ;)



Hello,lastnikita
Did you have any solutions to come back with the original dump (os.bin and Part02.raw) of the i900.Did you have any ideas?
thanks for your reply. :D

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#18
nismohks

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the dumping tool crashes on me for some reason! restarted and redownloaded and all. still not working

also, how would i be able to restore the dumped rom back to my phone?

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#19
nismohks

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ok i tried another computer and its dumping now :)

however, how are you able to restore this dumped rom back on the phone??

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#20
alexspires

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lastnikita will be our super-hero making a "lastnikita_flasher"....

I did the backup and waiting for a solution to flash it back to the i900L.

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