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Can't Downgrade from Gingerbread to Froyo Samsung GT-S5570

Hi,
I tried several times to downgrade my firmware Gingerbread to stock Froyo rom but the process end up with a black screen. What is the exact procedure to Downgrade?
My current firmware version is Gingerbread S5570XXKPJ and want to go back to stock firmware.. can anyone recommend me a froyo stock firmware. I tried a one pac installation firmware name S5570DDKC1 and did not workout.
Help me plz

Ive seen with several phones you're unable to downgrade from certain roms and are advised to keep your backups before you go to GB because the only way to go back from a GB rom to a froyo rom is to restore your backup.

byazid said:
Hi,
I tried several times to downgrade my firmware Gingerbread to stock Froyo rom but the process end up with a black screen. What is the exact procedure to Downgrade?
My current firmware version is Gingerbread S5570XXKPJ and want to go back to stock firmware.. can anyone recommend me a froyo stock firmware. I tried a one pac installation firmware name S5570DDKC1 and did not workout.
Help me plz
Click to expand...
Click to collapse
try like this: download S5570XXKB1, flash it in Odin...if it doesn't work you can try to use ClockWorkMod to format /system and then it should work...

Thanks a million for the reply guyz... i did figured out by my self.. Actually downgrade does not support flashing one package installer. It requires multiple files flash like, Modem,CSC, Code and all those flash components.
am now using froyo successfully

how did u do it I have the same issue

byazid said:
Thanks a million for the reply guyz... i did figured out by my self.. Actually downgrade does not support flashing one package installer. It requires multiple files flash like, Modem,CSC, Code and all those flash components.
am now using froyo successfully
Click to expand...
Click to collapse
plz give us the method u downgrade it

[Q] Videotron Canada XT720 ECLAIR 2.1 update 1

Hi,
i need to understant diffent technique to update rom and kind of rom (stock)
i have a Videotron Canada XT720 ECLAIR 2.1 update 1, stock (see picture)
Now, i already try some rom using "Open Recovery Nandroid Restore" with file boot, system IMG files.
I will like to try other rom like:
[ROM][11.09.01] CyanogenMod 6.3.0 - RC3 (2.2.1)
[ROM][11.09.14] CM7,iceandfire,HO!NO!,MIUI,CronosX on Motoroi(XT720)
(Ported CM7,iceandfire,HO!NO! and MIUI on Korean Motoroi(XT720))
[2011.09.10] Bravo2.2 v1.5 - Another XT720 ROM from China
But some of these rom need to use "Open Recovery UPDATE" or "RSD Lite" methode....
i dont want to used RSD Lite and flash another rom in my phone. Because i dosent have the sbf file from my original rom if i want to return stock rom.
so can i use open recovery update methode for CM6 and CM7 rom over my Stock Rom.
Thanks.

If you lost your original stock, don't worry about it. Simply use other stocks. I am with WIND mobile, and I've been using Singapore sbf.
For your problem, please search "Tutorial - Installing Dexter's Froyo on Milestone XT720" on YouTube, as I cannot post links as a new user.
Of course, you need to download all necessary files, which will be discussed in the video.

i already try this rom and some other rom also.
But my question is:
Can i update to this Rom without installing another sbf rom.
in other word, can i update to these rom on my stock eclair 2.2.1 Videotron Rom or i need to switch to singapoor rom before update to these rom?
[ROM][11.09.01] CyanogenMod 6.3.0 - RC3 (2.2.1)
[ROM][11.09.14] CM7,iceandfire,HO!NO!,MIUI,CronosX on Motoroi(XT720)
(Ported CM7,iceandfire,HO!NO! and MIUI on Korean Motoroi(XT720))
[2011.09.10] Bravo2.2 v1.5 - Another XT720 ROM from China
PS: I dont want to load other sbf rom for warranty purpose.

Yes you can but you will void your warranty if you do anything but what you got when you purchased the phone. My suggestion to find your SBF file (search for it) and then you always have a back up. When you flash a ROM you have to be rooted to do so, so bam! Void. Let's say that you flash something and then your power button breaks off. All you have to do is make a nandroid backup of your ROM you are on now, flash the correct SBF to return to stock, take your phone back (be sure to keep SD Card bc your backup wil be on there). They fix it, you re-root and restore your back up and you are right back where you were before the bunk. I have done this several times in the beginning before I found that I could fix almost all my own problems.
SBF = RSDlite
Custom ROMs = Open Recovery

Peterbob9 said:
in other word, can i update to these rom on my stock eclair 2.2.1 Videotron Rom or i need to switch to singapoor rom before update to these rom?
Click to expand...
Click to collapse
Ignore the people that say to flash the Singapore ROM (or any other 2.1 ROM).
The only distinction that matters is 2.1-update1 or korean 2.2.1
Requires 2.1-update1 sbf:
[ROM][11.09.01] CyanogenMod 6.3.0 - RC3 (2.2.1)
[2011.09.10] Bravo2.2 v1.5 - Another XT720 ROM from China
Currently requires Korean 2.2.1 sbf:
[ROM][11.09.14] CM7,iceandfire,HO!NO!,MIUI,CronosX on Motoroi(XT720)
(Ported CM7,iceandfire,HO!NO! and MIUI on Korean Motoroi(XT720))
You may end up sbf-ing anyway if you can't boot and you also can't openrecovery. But you can probably get away with sbf-flashing the system partition only (leaving the rest untouched)

Thanks,
About SBF Files, i can't find the exact sbf files for my phone: (see picture in my first message)
My stock ROM :STR_U2_05.1F.1
Compatible SBF: US BrightPoint STR_U2_04.1E.1
i can only find compatible sbf. That why i avoid to flash the complete rom with other.
i doesnt know that i possible to flash only the system partition.
About warranty, can you confirm that even i able to restore a backup image from nandroid open recovery than i unroot the phone, the phone will still be out of warranty?
Also what is Milestone A853, is this what i have?

Hi
You sbf flash back to stock then warrenty then is good.
You can google the sbf file.
Cm6 you can update though open recovery.
Cm6 is stable.
Cm7 .
You must sbf flash korean 2.2.1 sbf update and if you flash this you may have do a reset to get it to boot up.
Sent from my XT720 using XDA Premium App

So it will never be warranty because i can't find the exact SBF Rom Version that i have when i buy this phone.
i see about rom that sensor is not compatible with our phone XT720.
Is this the case with this rom:
Currently requires Korean 2.2.1 sbf:
[ROM][11.09.14] CM7,iceandfire,HO!NO!,MIUI,CronosX on Motoroi(XT720)
(Ported CM7,iceandfire,HO!NO! and MIUI on Korean Motoroi(XT720))

Peterbob9 said:
So it will never be warranty because i can't find the exact SBF Rom Version that i have when i buy this phone.
i see about rom that sensor is not compatible with our phone XT720.
Is this the case with this rom:
Currently requires Korean 2.2.1 sbf:
[ROM][11.09.14] CM7,iceandfire,HO!NO!,MIUI,CronosX on Motoroi(XT720)
(Ported CM7,iceandfire,HO!NO! and MIUI on Korean Motoroi(XT720))
Click to expand...
Click to collapse
That's true about all ROMs that use the Korean 2.2.1 SBF--sensors don't work on Milestone XT720.
About the warranty issue: you can make it very difficult for them to notice that anything has changed. If you have at least boot.img, system.img, cust.img, logo.img you can get your phone very close to videotron stock after flashing any 2.1-update1 sbf, if necessary. You will have to unroot and remove the openrecovery bootstrap and then do a factory reset, though (not too hard--there was a thread about this). It is possible to detect that things have changed, but many people have said that Motorola hasn't cared after they've done that. There are a few partitions we haven't figured out how to backup and flash--notably the bpsw and dev tree (but those are never modified by any of our ROMs).
Incidentally, I would be very interested to have copies of the videotron boot.img, system.img and cust.img.
The droid-developers.org wiki has information about how to try and get discover Motorola's sbf download links. You may also ask on #milestone-modding. I tried for the Wind sbf, but I got confused/stuck somewhere.

When i got this phone, i root the phone and install openrecovery.
Then i backup everything i can do with OpenRecovery.
i know with openrecovery we can't backup everything, but
it is possible with my first and original backup to create a videotron sbf file?

Peterbob9 said:
When i got this phone, i root the phone and install openrecovery.
Then i backup everything i can do with OpenRecovery.
i know with openrecovery we can't backup everything, but
it is possible with my first and original backup to create a videotron sbf file?
Click to expand...
Click to collapse
I don't think so because the signatures will be wrong. The bootloader verifies signatures in bootloader mode before flashing (but doesn't check all of them again at each reboot--just the boot and recovery are checked each boot). So, the phone would refuse to flash it from RSD Lite/sbf_flash. At least that is true of the system partition. Some partitions would work (boot for example) but you could get the same effect by restoring your nandroids in openrecovery. The process of rooting and installing openrecovery only modifies the system partition. There may be a way to fix the openrecovery bugs to extract the other partitions, but nobody's figured it out yet (or maybe they haven't tried--I've looked into it a little bit--the reason the nandroid backup/restore fails is because the partitions aren't exposed by the kernel, I think there's a kernel module that was built for Milestone A853 that we have to modify and rebuild to expose the other partitions, it just hardcodes the positions of the partitions which doesn't work well for switching between the Korean and non-Korean SBFs)

Need a little help with TBH US GSM Band Unlock

The says I need version 2.4.29 to have it work. Do they mean kernal version? Android version? or what. Also if my phone has updated how can I roll it back to factory release? Thanks

2.4.29 is the system version, aka internal Motorola numbering.
To reflash the phone to stock 2.4.29, use the corresponding SBF image. See http://droid.koumakan.jp/wiki/SBF

Stock Everything Stock

I don't understand these directions from the FAQ:
"Q. How to get back to stock? I need to give my phone to warranty services how do I revert to official LG rom?
A. Check this thread. It is the v10b 2.2 stock rom as a flashable zip package. If you can't access the recovery, then see if the firmware for your country is available here or use this tool. Download the firmware and use the KDZ tool to flash. You will find instructions to use the KDZ tool on this thread. For a picture guide, check this thread.
Also for official GB lovers, see this and this. It is a v20g rom in flashable zip package. Or if you'd rather flash v20c/g roms from LGMDP, the links for that can be found in this thread.
If you are on Optimus V, see http://forum.xda-developers.com/show....php?t=1025911
If you are on the Optimus T, see this post. Uses the KDZ method.
Q. How do I restore the stock recovery?
A. Download the original recovery zip file from here and flash it. (Yes, you can flash a recovery from within recovery itself)"
I have LG P500 from USA T-Mobile. I'm on V20 Baseband.
1)Is kdz the only way to go back to stock?
2)Which way is the safer and better way to get back to stock?
3)How (full instructions) to get back to stock rom for USA T-Mobile?
4)How (full instructions) to get back to stock recovery for USA T-Mobile?

yes you can flash a recovery from recovery, if it is a flashable zip
you need to stick with your phone not other variants of LG p500, O-1(Europe), O-T or O-V, dunno what is the T-mobile USA version, but is it written inside your phone under battery
1) KDZ is for flashing software in your phone, but beware, if you are unexperienced you may brick your phone for good, but you can try it, DO NOT PULL OUT BATTERY OR DO SOMETHING WHILE KDZ IS NOT FINISHED FLASHING PHONE OR YOU WILL HARDBRICK IT (but, I do not think someone at service will notice that, after a hardbrick, it just went dead and nothing else, nobody knows nothing)
2)if you do not know what are you doing, nothing is safe, anyway, as I mentioned, a hardbrick is a hardbrick and if you still have warranty, you are lucky
3)http://forum.xda-developers.com/showthread.php?t=1824618 search there
4) LG P500 doesn't have stock recovery(just bootloader)
if you do not know what to flash try to find a T-mobile rom image (MAKE A REQUEST-someone will post it), and first time when flashing a recovery is to backup original rom for what will come after
LGMDP will work like this, it upgrades rom when you have an older version, so try to flash an older custom rom, find an Froyo 2.2 and flash it as any custom rom, boot, conect your phone to PC, that means that you have LG USB drivers installed, start LGMDP and w8 to detect your phone, after that goto options & help, select country, carrier, phone, w8 to detect latest update, start update
in case that your phone is not detected, boot into recovery, goto mounts and mount USB, that will make LGMDP detect your phone, start updating

androiddownloader said:
I don't understand these directions from the FAQ:
"Q. How to get back to stock? I need to give my phone to warranty services how do I revert to official LG rom?
A. Check this thread. It is the v10b 2.2 stock rom as a flashable zip package. If you can't access the recovery, then see if the firmware for your country is available here or use this tool. Download the firmware and use the KDZ tool to flash. You will find instructions to use the KDZ tool on this thread. For a picture guide, check this thread.
Also for official GB lovers, see this and this. It is a v20g rom in flashable zip package. Or if you'd rather flash v20c/g roms from LGMDP, the links for that can be found in this thread.
If you are on Optimus V, see http://forum.xda-developers.com/show....php?t=1025911
If you are on the Optimus T, see this post. Uses the KDZ method.
Q. How do I restore the stock recovery?
A. Download the original recovery zip file from here and flash it. (Yes, you can flash a recovery from within recovery itself)"
I have LG P500 from USA T-Mobile. I'm on V20 Baseband.
1)Is kdz the only way to go back to stock?
2)Which way is the safer and better way to get back to stock?
3)How (full instructions) to get back to stock rom for USA T-Mobile?
4)How (full instructions) to get back to stock recovery for USA T-Mobile?
Click to expand...
Click to collapse
KDZ is generally discouraged . However if you can find a Nandroid back up of GB , then that would be the safest way . I went back to stock froyo with the help of this thread - http://forum.xda-developers.com/showthread.php?t=1955354

sarans1987 said:
KDZ is generally discouraged . However if you can find a Nandroid back up of GB , then that would be the safest way . I went back to stock froyo with the help of this thread - http://forum.xda-developers.com/showthread.php?t=1955354
Click to expand...
Click to collapse
Thank you, i can just use that other download on the thread if i have the new baseband right? and what about removing cwm? or restoring stock recovery even though there wasnt before

androiddownloader said:
Thank you, i can just use that other download on the thread if i have the new baseband right? and what about removing cwm? or restoring stock recovery even though there wasnt before
Click to expand...
Click to collapse
Your have V20 that is new baseband so any rom from GingerBread onwards is good for you . Stock recovery can be flashed sitting right from custom recovery . Check out this thread for custom recovery and ROM of 2.3.3 - http://forum.xda-developers.com/showthread.php?t=1309744 . If you wanna try lgmdp look at this - http://forum.xda-developers.com/showthread.php?t=1324105

[Q] Rom Stock HTC One Mini

I need to flash stock rom ( Vietnamese version) to my HTC One Mini because it got stuck when i update ota 1.32 version :crying:. Please give me a link to download stock rom for the newest version in VietNam. I'm not sure whether or not to flash the stock rom from other regions

I don't know of any roms with Vietnamese built in, but you can use MoreLocale 2 to download a Vietnamese language pack (the screenshots look dated, but it works just fine).

About roms
I mean that whether or not i can flash roms from other regions without problems. If you have a newest version stock rom, please give me.

masterpeace9x said:
I mean that whether or not i can flash roms from other regions without problems. If you have a newest version stock rom, please give me.
Click to expand...
Click to collapse
If you just want a stock experience you can do a factory reset by powering the phone off and then holding the power button and volume down buttons at the same time till you get to the bootloader screen and then select factory reset.
If you want to flash a different rom it should work, but you might have connectivity issues so just make sure to make a nandroid backup before in case anything goes wrong. I'd suggest Jmz's Stock Rooted DeOdexed WWE Rom. Uhm... once you unlock your bootloader your /data partition gets erased so you won't be able to download an OTA, but I'm sure they'll figure out a fix for that in the future.

Roms
I know that i can factory reset but i desire to update to the latest version through flashing roms. However I have a huge problem with OTA, it sucks