Do I have to flash back to stock? - Captivate Q&A, Help & Troubleshooting

Hi,
I am currently on the Darky v7.0 and I wanted to flash to 7.0.2
Do I just copy the rom in the sd folder and flash using rom manager just as i did before?
or do i have to switch back to stock 2.1 (rogers) and then flash 7.0.2?
This will be my second time flashing.
Please advice.
Thanks

Just install it over 7.0 if you got the non wipe version.

peachpuff said:
Just install it over 7.0 if you got the non wipe version.
Click to expand...
Click to collapse
This is the thread and the link to it. it does say "No wipe".
[ROM] Official Darky Port v7.0.2 No Wipe]
http://forum.xda-developers.com/showthread.php?t=880859&page=53
so does it mean its ok to install over 7.0?
does no wipe mean i dont have to wipe/remove the rom before flashing a new one?
Thanks

I too am curious why we are told to revert back to 100% stock before every time we change a rom. Why can't we just use Clockwork Recovery to wipe data/factory reset just like we do with every other Android phone?

Phateless said:
I too am curious why we are told to revert back to 100% stock before every time we change a rom. Why can't we just use Clockwork Recovery to wipe data/factory reset just like we do with every other Android phone?
Click to expand...
Click to collapse
samsung, in their infinite wisdom, decided rfs was the best filestructure to use for this phone. some roms change that to ext4 with voodoo, some roms rely on ULF to convert to ext4 and some dont convert anything.
ODIN is the user-friendly way to wipe everything back to stock...completely. if you remember to revert any lagfix (voodoo, ULF) then load your rom, it will work fine.
HOWEVER, there are so many people that dont remember to do that, its easier to flash back to stock rather than troubleshoot what could have possibly happened during their flash
personally, i have found that it takes just as long to revert the lagfix as it does to use ODIN....so rather than hoping that my new flash isnt corrupted in some way by my old flash, i flash back to stock. takes me 5 minutes total. as long as you keep a copy of the CWM update.zip on your sdcard, there is not even a reason to boot back into stock and root/setup/install rom manager, etc.

Pirateghost said:
samsung, in their infinite wisdom, decided rfs was the best filestructure to use for this phone. some roms change that to ext4 with voodoo, some roms rely on ULF to convert to ext4 and some dont convert anything.
ODIN is the user-friendly way to wipe everything back to stock...completely. if you remember to revert any lagfix (voodoo, ULF) then load your rom, it will work fine.
HOWEVER, there are so many people that dont remember to do that, its easier to flash back to stock rather than troubleshoot what could have possibly happened during their flash
personally, i have found that it takes just as long to revert the lagfix as it does to use ODIN....so rather than hoping that my new flash isnt corrupted in some way by my old flash, i flash back to stock. takes me 5 minutes total. as long as you keep a copy of the CWM update.zip on your sdcard, there is not even a reason to boot back into stock and root/setup/install rom manager, etc.
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Click to collapse
Thank you, that's the answer I was looking for. I already noticed that CWM can be flashed through an update.zip, so if I'm currently running the stock rom I don't have to ODIN and wipe data, do I? I can just flash CWM, nandroid, then go ahead and flash whatever I want?
Then NEXT TIME I flash something else I'll have to ODIN first.
Or does the user data already present in the stock rom make enough of a difference that I should ODIN anyway?
Phone is my gf's so I would really like to have a nandroid of her setup exactly as it is now so we can go back if she doesn't like Cognition, or whatever rom we decide to flash.

Phateless said:
Thank you, that's the answer I was looking for. I already noticed that CWM can be flashed through an update.zip, so if I'm currently running the stock rom I don't have to ODIN and wipe data, do I? I can just flash CWM, nandroid, then go ahead and flash whatever I want?
Then NEXT TIME I flash something else I'll have to ODIN first.
Or does the user data already present in the stock rom make enough of a difference that I should ODIN anyway?
Phone is my gf's so I would really like to have a nandroid of her setup exactly as it is now so we can go back if she doesn't like Cognition, or whatever rom we decide to flash.
Click to expand...
Click to collapse
you are correct in assuming that if you are running stock currently, you do not have to odin first
if you remember to revert any lagfix that may have been applied (depends on rom) you wont have to ODIN
make a nandroid of her current setup.
now this is where it gets tricky. i just played around with doing this last night actually:
if you go from 2.1 to 2.2 or higher, you cannot just flash back to 2.1 nandroid restore. the nandroid doesnt backup or restore your modem and kernel
going backwards to 2.1, you will want to flash a 2.1 kernel, and modem prior to restoring your nandroid backup and vice versa if you make a nandroid of 2.2 and want to go back to it from 2.1
if you keep clockwork flashable versions of such needed kernels and modems as well as a nandroid of the original setup and the cwm update.zip file on your sdcard, you will never need odin...unless there is a major malfunction. this can all be done in CWM, but as i said, the noob-friendly, and surefire way to get a fresh install is ODIN. i dont think any other company has something like this available to flash back to stock, so the methods used on the roms in the galaxy s phones are slightly different than the roms for htc or motorola devices. to me, i think this is a major win for us, in that most things are easily recoverable using a windows tool

Pirateghost said:
you are correct in assuming that if you are running stock currently, you do not have to odin first
if you remember to revert any lagfix that may have been applied (depends on rom) you wont have to ODIN
make a nandroid of her current setup.
now this is where it gets tricky. i just played around with doing this last night actually:
if you go from 2.1 to 2.2 or higher, you cannot just flash back to 2.1 nandroid restore. the nandroid doesnt backup or restore your modem and kernel
going backwards to 2.1, you will want to flash a 2.1 kernel, and modem prior to restoring your nandroid backup and vice versa if you make a nandroid of 2.2 and want to go back to it from 2.1
if you keep clockwork flashable versions of such needed kernels and modems as well as a nandroid of the original setup and the cwm update.zip file on your sdcard, you will never need odin...unless there is a major malfunction. this can all be done in CWM, but as i said, the noob-friendly, and surefire way to get a fresh install is ODIN. i dont think any other company has something like this available to flash back to stock, so the methods used on the roms in the galaxy s phones are slightly different than the roms for htc or motorola devices. to me, i think this is a major win for us, in that most things are easily recoverable using a windows tool
Click to expand...
Click to collapse
That makes sense, thanks! Over in HTC-land we call them radios instead of modems, and kernel/spl/radio all have to be compatible. Most are compatible with each other so there is seldom a need to flash around.
So what I gather from your post is that if she starts on stock 2.1 and I flash cwm, then flash Cognition (2.2 rom) I will most likely need to update the modem to match? Or is that only the case with stock roms?

Phateless said:
That makes sense, thanks! Over in HTC-land we call them radios instead of modems, and kernel/spl/radio all have to be compatible. Most are compatible with each other so there is seldom a need to flash around.
So what I gather from your post is that if she starts on stock 2.1 and I flash cwm, then flash Cognition (2.2 rom) I will most likely need to update the modem to match? Or is that only the case with stock roms?
Click to expand...
Click to collapse
most all the custom roms you will find will flash a kernel and modem that match and work properly with that rom
it really only applies to nandroid backups going from 2.1 to 2.2 and vice versa

Pirateghost said:
most all the custom roms you will find will flash a kernel and modem that match and work properly with that rom
it really only applies to nandroid backups going from 2.1 to 2.2 and vice versa
Click to expand...
Click to collapse
So you're saying when you flash the rom it will flash the correct kernel and modem as part of update/install script?
So basically I just need to install CWM, flash the rom, and not worry about the rest?

Phateless said:
So you're saying when you flash the rom it will flash the correct kernel and modem as part of update/install script?
So basically I just need to install CWM, flash the rom, and not worry about the rest?
Click to expand...
Click to collapse
yep
you dont need to worry about the rest until it comes time to flash to something else
there are a few options when that time comes:
use ODIN to restore to stock, then flash the next rom of your choosing
revert lagfix (if applied from the current rom you are running), then flash next rom of your choosing
if going back to a 2.1 NANDROID, not custom rom, then you will either need to odin, then flash.
or
flash 2.1 compatible kernel+modem and then restore your nandroid

Pirateghost said:
yep
you dont need to worry about the rest until it comes time to flash to something else
there are a few options when that time comes:
use ODIN to restore to stock, then flash the next rom of your choosing
revert lagfix (if applied from the current rom you are running), then flash next rom of your choosing
if going back to a 2.1 NANDROID, not custom rom, then you will either need to odin, then flash.
or
flash 2.1 compatible kernel+modem and then restore your nandroid
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Click to collapse
Got it. That all makes sense except for the kernel. Shouldn't that be included in the nandroid? I know the modem probably resides on a separate partition...

Phateless said:
Got it. That all makes sense except for the kernel. Shouldn't that be included in the nandroid? I know the modem probably resides on a separate partition...
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the nandroid doesnt backup the kernel OR the modem as far as i know. either that or it doesnt flash them on the restore...

Pirateghost said:
the nandroid doesnt backup the kernel OR the modem as far as i know. either that or it doesnt flash them on the restore...
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Click to collapse
At least with HTC the kernel is part of the Rom and IS included in nandroids.

Related

What are the issues doing this

With all of the really good roms now a days...that is..
1) Rooting...doing a back up of the stock rom..and then using that backup to return to stock without having to flash through Odin?
I'm guessing here...but..wouldn't you have to have disable any lag fix..going back to rfs..disable any voodoo..changing any oc/uc settings to stock..prior to doing this ?
2) Pulling a copy of the entire EFS folder from stock to your PC before doing any flashing new roms and then prior to un-rooting dropping it back in with root explorer...Won't this do the same thing without having to use a terminal or hex editor to have the original imei # and product code #? If #1 is a complete copy..would #2 be even needed ?
Just looking for a easy way to do this on a brand new phone
Thanks
Mac
Mac11700 said:
With all of the really good roms now a days...that is..
1) Rooting...doing a back up of the stock rom..and then using that backup to return to stock without having to flash through Odin?
I'm guessing here...but..wouldn't you have to have disable any lag fix..going back to rfs..disable any voodoo..changing any oc/uc settings to stock..prior to doing this ?
2) Pulling a copy of the entire EFS folder from stock to your PC before doing any flashing new roms and then prior to un-rooting dropping it back in with root explorer...Won't this do the same thing without having to use a terminal or hex editor to have the original imei # and product code #? If #1 is a complete copy..would #2 be even needed ?
Just looking for a easy way to do this on a brand new phone
Thanks
Mac
Click to expand...
Click to collapse
1) You should basically be doing this everytime you flash a new rom. I've flashed my cappy probly 50 times and everytime except once I went back to stock first. 0 issues -- the 1 time I didn't have a pc at hand and had to disable the lagfix then flash rom. But. going back to stock with Odin3 1 click is easy as long as you can get into download mode. Make sure you can get into dload mode before even attempting to flash a rom.
You only have to disable lagfix if you are not going back to stock prior to flashing a new rom (don't ever flash a rom over another rom without first disabling the lagfix or going back to stock).
2) I never backup my sdcard when flashing rom or master clear (I'm lazy I guess and don't want to wait for the files to transfer). I also keep update.zip as the clockwork recovery update.zip file. So after going back to stock, all I have to do is go into stock recovery and reinstall packages to install clockwork recovery, then I can flash the new rom and any add ons.
mod777 said:
1) You should basically be doing this everytime you flash a new rom. I've flashed my cappy probly 50 times and everytime except once I went back to stock first. 0 issues -- the 1 time I didn't have a pc at hand and had to disable the lagfix then flash rom. But. going back to stock with Odin3 1 click is easy as long as you can get into download mode. Make sure you can get into dload mode before even attempting to flash a rom.
You only have to disable lagfix if you are not going back to stock prior to flashing a new rom (don't ever flash a rom over another rom without first disabling the lagfix or going back to stock).
2) I never backup my sdcard when flashing rom or master clear (I'm lazy I guess and don't want to wait for the files to transfer). I also keep update.zip as the clockwork recovery update.zip file. So after going back to stock, all I have to do is go into stock recovery and reinstall packages to install clockwork recovery, then I can flash the new rom and any add ons.
Click to expand...
Click to collapse
I guess I am wording this wrong...I know how to flash..and I know how to odin back...but I was curious if I could eliminate doing some of that by just using the back up of the stock rom that is rooted..I don't think that can be done with out flashing stock via Odin first (because of the kernels if not using a Captivate kernel )...but if you are using one... I haven't read anything about...cause I really don't know..
I am trying to see if all the EFS files are replaced with the correct #s without having to do and terminal work or use a hex editor..once the back up from Rom manager is put back on and used..Just trying to make a real easy check list about it..
Mac
mod777 said:
(don't ever flash a rom over another rom without first disabling the lagfix or going back to stock).
Click to expand...
Click to collapse
I guess I got lucky cuz one day I was too lazy and away from the PC, but I have a couple of ROMs on my SD so I just flashed Assonance on top of Perception and worked fine.. that is the only time I did that, I always go back to stock with one click ODIN before flashing a new rom
dq13 said:
I guess I got lucky cuz one day I was too lazy and away from the PC, but I have a couple of ROMs on my SD so I just flashed Assonance on top of Perception and worked fine.. that is the only time I did that, I always go back to stock with one click ODIN before flashing a new rom
Click to expand...
Click to collapse
the lagfixes may not have been installed...i think you have to manually install them with the roms you mentioned

[Q] Restore Stock Rom

Ok, i have read many posts, the one from ODIN and ask people, watched videos, and nothing. Im starting in the rooting process, im currently on Phoenix 2.5, before i flashed this rom i made a backup rom with Clockwork, i decided to restore to stock using clockwork, but it failed on me and i fear that my phone was bricked. I flashed again the phoenix rom, but i want to return to my stock rom, but i dont know why, i just want to flash darkys rom, but i dont know how to restore back to stock, if i use odin by default i have to do the master clear, please help me, i dont want to be stuck on this rom.
hernan078 said:
Ok, i have read many posts, the one from ODIN and ask people, watched videos, and nothing. Im starting in the rooting process, im currently on Phoenix 2.5, before i flashed this rom i made a backup rom with Clockwork, i decided to restore to stock using clockwork, but it failed on me and i fear that my phone was bricked. I flashed again the phoenix rom, but i want to return to my stock rom, but i dont know why, i just want to flash darkys rom, but i dont know how to restore back to stock, if i use odin by default i have to do the master clear, please help me, i dont want to be stuck on this rom.
Click to expand...
Click to collapse
#1: Are you disabling Lagfix before flashing? If not, that may be your problem.
#2: Prepare to be flamed for posting in the devs section with a Q&A post.
hernan078 said:
Ok, i have read many posts, the one from ODIN and ask people, watched videos, and nothing. Im starting in the rooting process, im currently on Phoenix 2.5, before i flashed this rom i made a backup rom with Clockwork, i decided to restore to stock using clockwork, but it failed on me and i fear that my phone was bricked. I flashed again the phoenix rom, but i want to return to my stock rom, but i dont know why, i just want to flash darkys rom, but i dont know how to restore back to stock, if i use odin by default i have to do the master clear, please help me, i dont want to be stuck on this rom.
Click to expand...
Click to collapse
POST IN THE RIGHT SECTION (I guess I had to do that, right??)
To answer your question - Gr8danes is right, you should be disabling your lagfix to restore your backup first.
Do this by going into your /sdcard/voodoo directory - Create a folder named "disable-lagfix" and reboot your phone. You will hear the robotic voice reconverting your file system - this will take about 3-5 minutes.
Then proceed with flashing your stock backup.
If that fails, you will have to use ODIN One Click to revert back to Eclair 2.1
born_fisherman said:
POST IN THE RIGHT SECTION (I guess I had to do that, right??)
To answer your question - Gr8danes is right, you should be disabling your lagfix to restore your backup first.
Do this by going into your /sdcard/voodoo directory - Create a folder named "disable-lagfix" and reboot your phone. You will hear the robotic voice reconverting your file system - this will take about 3-5 minutes.
Then proceed with flashing your stock backup.
If that fails, you will have to use ODIN One Click to revert back to Eclair 2.1
Click to expand...
Click to collapse
So as long as the file system is restored (voodoo disabled) you CAN nandroid back to stock? Awesome.
thanks a lot, and sorry for posting in the wrong section.
Suppose everything fails, when i decide to use ODIN, do i need to do the master clear?
hernan078 said:
thanks a lot, and sorry for posting in the wrong section.
Suppose everything fails, when i decide to use ODIN, do i need to do the master clear?
Click to expand...
Click to collapse
no you do not need to master clear
also, the nandroid doesnt backup the KERNEL or the MODEM so you will likely get a bootloop after trying to restore your stock backup. in order to get back to stock, the best option is ODIN.
im using clockwork, i did the backup with clockwork
hernan078 said:
im using clockwork, i did the backup with clockwork
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Click to collapse
yeah, clockwork doesnt backup/restore the stock kernel+modem for you (one of its downfalls on this phone it seems). thats a manual process. the other option is to use the JH7 stock+rooted rom, thats designed for clockwork
But if i disable the lagfix, and do the restore using clockwork, it will fail? I MUST USE ODIN?? If i have to use ODIN, whats the point of doing a backup stock rom?
Pirateghost said:
yeah, clockwork doesnt backup/restore the stock kernel+modem for you (one of its downfalls on this phone it seems). thats a manual process. the other option is to use the JH7 stock+rooted rom, thats designed for clockwork
Click to expand...
Click to collapse
Haven't seen that around here, can you link?
Phateless said:
Haven't seen that around here, can you link?
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Click to collapse
dont know of any links. i just know in my testing that is what happened.
if you look at a backup done in clockwork, there are the following files created:
cache.img
data.img
datadata.img
nandroid.md5
system.img
if you are flashing from a 2.2 rom to a 2.1 backup, you will get caught in a bootloop because you still have the kernel from 2.2, as cwm doesnt backup the kernel for our phones. if you flash a 2.1 kernel, via clockwork, or odin, your backup will boot up, but you will probably get FC's on a lot of things, because the modem is still a 2.2 modem, and causes instabilities. if you then flash a 2.1 modem, your backup will boot up without any issues. the best way to deal with this is to keep a 2.1 kernel and 2.1 modem CWM flashable zips on your sd card alongside your nandroid backup, flash the modem and kernel, then restore the backup.
Pirateghost said:
dont know of any links. i just know in my testing that is what happened.
if you look at a backup done in clockwork, there are the following files created:
cache.img
data.img
datadata.img
nandroid.md5
system.img
if you are flashing from a 2.2 rom to a 2.1 backup, you will get caught in a bootloop because you still have the kernel from 2.2, as cwm doesnt backup the kernel for our phones. if you flash a 2.1 kernel, via clockwork, or odin, your backup will boot up, but you will probably get FC's on a lot of things, because the modem is still a 2.2 modem, and causes instabilities. if you then flash a 2.1 modem, your backup will boot up without any issues. the best way to deal with this is to keep a 2.1 kernel and 2.1 modem CWM flashable zips on your sd card alongside your nandroid backup, flash the modem and kernel, then restore the backup.
Click to expand...
Click to collapse
thats sounds to me like too much work, or things that i didnt do, best option is to use odin then, right?
hernan078 said:
But if i disable the lagfix, and do the restore using clockwork, it will fail? I MUST USE ODIN?? If i have to use ODIN, whats the point of doing a backup stock rom?
Click to expand...
Click to collapse
It backs up apps and settings, but it isn't meant for restoring firmware versions.
If you just want to run Darky's then just flash it and skip the whole returning to stock step. It's really not necessary.
opcow said:
It backs up apps and settings, but it isn't meant for restoring firmware versions.
If you just want to run Darky's then just flash it and skip the whole returning to stock step. It's really not necessary.
Click to expand...
Click to collapse
i dont need to go back to stock to flash another rom? i can just flash darkys on top of Phoenix?
hernan078 said:
i dont need to go back to stock to flash another rom? i can just flash darkys on top of Phoenix?
Click to expand...
Click to collapse
You should use the option in cwm recovery for WIPE DATA/SYSTEM RESTORE before you do, but yes.
hernan078 said:
i dont need to go back to stock to flash another rom? i can just flash darkys on top of Phoenix?
Click to expand...
Click to collapse
Yes, u don't have to restore stock first before flashing another rom, but like said above, make sure to do a factory reset in cwm..
As for odin, you don't have to master clear either, you can use either odin one click or download a stock rom from samfirmware.com and use regular odin...
Sent from my SGH-I897 using XDA App
Phateless said:
You should use the option in cwm recovery for WIPE DATA/SYSTEM RESTORE before you do, but yes.
Click to expand...
Click to collapse
i didnt understood your instructions, i just see and option that says wipe data/facory reset, what do i do to install darkys rom, while still on phoenix?
hernan078 said:
i didnt understood your instructions, i just see and option that says wipe data/facory reset, what do i do to install darkys rom, while still on phoenix?
Click to expand...
Click to collapse
Here are the install instructions from the first post of the Darky's thread:
HOW TO FLASH
Place the ROM on the root of your SD card.
Backup your apps using Titanium Backup.
Open ROM Manager (Downloadable from the market)
Choose "Install ROM from SD card". If after you flash and you have problems like force closes and you can't receive calls, wipe data/cache.
Let the phone sit for 5-10 minutes after booting.
Be happy.
Click to expand...
Click to collapse
That's pretty much how I've done it with all the ROMs I've used for the last couple of months, except that I boot to recovery mode to choose the ROM and start the install.
ok, thanks a lot guys, i spent all my thanks for today, but the conclusion is that i can flash darkys rom on top of phoenix, restoring back to stock will be if i want to take it for warranty or something like that right?
hernan078 said:
ok, thanks a lot guys, i spent all my thanks for today, but the conclusion is that i can flash darkys rom on top of phoenix, restoring back to stock will be if i want to take it for warranty or something like that right?
Click to expand...
Click to collapse
That's my opinion. The install script formats and deletes everything anyway, so going back to stock is superfluous. Some people disagree, but as per my other post, the Darky's instructions say nothing about flashing stock.
I went a couple of months without going back to stock and in that time I flashed various versions of Cognition, Darky's, di11igaf, Assonance, Perception, Axura, Phoenix, Doc's, Serendipity and probably others I've forgotten. I only flashed stock the other day because I sent my phone back to Samsung to see if I can get one with working GPS.

Is it necessary ODIN when going between ROM's instead of JH7_OTA ROM??

Scenario:
- I'm running Phoenix 4 ROM
- I want to try another ROM
- I have a copy of the JH7_OTA-1.zip
Can I just use ClockworkMod Recovery to flash the JH7_OTA ROM, then do a master clear from the phone and then apply any ROM I want?
Would that not accomplish the same thing as putting the phone in download mode and doing a stock restore via ODIN, followed by a Master Clear, and then flashing any ROM?
Can someone clear this up for me because it seems that both methods accomplish the same thing. They restore your phone to factory stock ROM as it's suggested by majority of the ROM before applying them.
Thanks
You can go from one rom to another without flashing stock.
I just went from doc jpy base to andromeda armani base. All I did was disable lag fix and kernel tweaks then flashed
I did so knowing I had odin just in case
What mcord11758 said except you don't actually need to disable anything. Just flash.
So that's the confusing part because:
Cognition ROM used to saynow there is just a DL link)
"flash back to I897UCJF6 (Recommended)"
and
How to flash PHOENIX Roms:
"1. BACK UP!!!
2. Use Odin One click to Flash Stock
2a. Wait for it to reboot and then re-enable debugging, hook phone back up to pc and Master Clear"
I got the concept that if running any lagfix it's best to disable it when updating the same ROM to a newer version but when doing a factory ROM it wipes out the ROM contents including the file-system format be it EXT4/EXT3 back to the Samsung RFS.
I would love to hear from one of the developers but I couldn't ask this question in the Dev Forum due too my n00b posting status.
Thanks for anyone who takes the time to provide some insight.
Phoenix and cognition both use ext 4 filing and the clockwork recovery built in understand it.
You have no less risk flashing jh7. in essence you are doing the same thing
flashing stock was more necessary when recovery could not understand ext 4. Today you can change to three different kernels in one day without ever disabling a lagfix
Vezee said:
I got the concept that if running any lagfix it's best to disable it when updating the same ROM to a newer version but when doing a factory ROM it wipes out the ROM contents including the file-system format be it EXT4/EXT3 back to the Samsung RFS.
Click to expand...
Click to collapse
The partitions get formatted either way (unless it's now wipe, in which case I guess data and datadb don't). If are running ext4 and your new kernel supports ext4 then why disable it?
mcord11758 said:
Phoenix and cognition both use ext 4 filing and the clockwork recovery built in understand it.
You have no less risk flashing jh7. in essence you are doing the same thing
flashing stock was more necessary when recovery could not understand ext 4. Today you can change to three different kernels in one day without ever disabling a lagfix
Click to expand...
Click to collapse
Thanks, that was the answer I was looking form I didn't exactly understand that the restriction was the recovery rom. It makes sense.

Nandroid BU and bootloaders.

Does the nandroid bu via cwm contain bootloaders? Just want to know, if I have GB boots, if I can restore a stock 2.2 bu without probs. I know I would first have to flash a 2.2 based rom, but should I do a one click before I restore?
Sent from my SAMSUNG-SGH-I897 using XDA App
The way I understand nandroid backups is 2.1 to 2.1, 2.2 to 2.2 etc.
What you are asking may work since some 2.2 roms will run on the 2.3 bootloaders......but do you really want to run the risk of bricking your phone? Either way better safe than sorry. Just my opinion.
Nandroid backs up the system and data areas, so doesn't address things such as bootloaders, kernel, and modem. I have gone back and forth from gingerbread to froyo, so it can be done. I am always on I9000 roms, so the modem is always compatible. I do need to flash a new kernel before updating, which I have done in Odin, with the auto reboot unchecked. Then I button combo to recovery, and restore.
In theory, you can flash a new kernel with SGS kernel flasher, and go into recovery and restore, and avoid PC entanglements, but I haven't done so.

Major help please

hi everyone
i start flash custom roms couple days ago, trying out "temasek's UNOFFICIAL BUILD RC1-94" everything work great, just some of the .apk was not working, so i decide to go back to stock roms, i thought it be simple process restore it backup, but adter it restore LG logo keep boot and restart. so i start reading found this thread i try it out, load it install this zip file,
http://forum.xda-developers.com/showthread.php?t=1021554
now i can't return to recovery menu, and it keep booting and restart, please what can i do now did i brick the phone, i'm so lost right now, please help thanks
after many try and ton of reading, i thought my is total brick, trying out smartflash method also get error when flashing, thank to this post from "75markus " i was able to restore back to 2.2 froyo
http://forum.xda-developers.com/showpost.php?p=25120132&postcount=6
Next time don't forget to flash Back2Ext3 before restoring stock backup
Durio said:
Next time don't forget to flash Back2Ext3 before restoring stock backup
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Yes - that happened to me also. My first "bad" experience with flashing
from what i read CM7 running ext4, stock runing ext3 right?
so now i'm back with stock running froyo, i still have my backup files on with sd card. Do i root and install rom manager then install Back2Ext3, and final running restore? will this restore back to my original state since i backup using cwm to backup.
thank guy
yes, cm7 uses ext4 system mount. i just use a zip file which i flash from recovery if i need to get back to ext3.
here it is btw if you are on stock froyo and want to restore stock gingerbread (if i understood you right) you dont need to use back to ext3 again, just restore your back up.
phihung07 said:
hi everyone
i start flash custom roms couple days ago, trying out "temasek's UNOFFICIAL BUILD RC1-94" everything work great, just some of the .apk was not working, so i decide to go back to stock roms, i thought it be simple process restore it backup, but adter it restore LG logo keep boot and restart. so i start reading found this thread i try it out, load it install this zip file,
http://forum.xda-developers.com/showthread.php?t=1021554
now i can't return to recovery menu, and it keep booting and restart, please what can i do now did i brick the phone, i'm so lost right now, please help thanks
Click to expand...
Click to collapse
Restore stock backup from CM needs to flash an ext4-backto-ext3 zip with cwm, what a pity you overwrite cwm with stock recovery.
Now you should try to rescue your phone with SmartFlash, finally consider nvflash method.
xilw3r said:
yes, cm7 uses ext4 system mount. i just use a zip file which i flash from recovery if i need to get back to ext3.
here it is btw if you are on stock froyo and want to restore stock gingerbread (if i understood you right) you dont need to use back to ext3 again, just restore your back up.
Click to expand...
Click to collapse
well i notice the froyo firmware is way faster than the GB i have, no lagg at all battery is really good, is there any GB stock rom run smooth without bloatware.... (like international version)
phihung07 said:
well i notice the froyo firmware is way faster than the GB i have, no lagg at all battery is really good, is there any GB stock rom run smooth without bloatware.... (like international version)
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If you mind, try Django Manouche, Custom but stock based ROM http://forum.xda-developers.com/showthread.php?t=1410662 . I tried many CM and MIUI roms but always ended restoring Django back

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