WHat i did was:
-restore 2.2 nandroid backup
-flashed 2.2 fixed sbf so i could keep downgradability...
Now when i tried to go back to 2.1 eclair version 2.21
-i flashed 2.21 blur full sbf
and now i have black screen as if downgrading wasn't possible...
What options do i have ?
NO HELP? am i the only one with this problem here?
ANother question i had if there's a way of downgrading kernel? because i've experimented this. On kernel 2.6.29, the multi touch works fine but on kernel 2.6.32, multi touch is buggy, way buggy...
I'm guessing your stuck on 3x roms. So your going to need to see if you can reflash the fixed rom and try downgrading again.
If not that fixed rom wasn't fixed.
Sent from my Defy, with XDA Premium
Jygar said:
If not that fixed rom wasn't fixed.
Click to expand...
Click to collapse
Thanks for THE reply...so now what i can do is flash full sbf (3.4.2.145) which is same version as my earliest fixed sbf, restore nand backup of 2.2 then flash the FIXED sbf CEE one (3.4.2.155) and then try downgrading? would this work?
EDIT: Walter79's sbf's are messed up..i used his fixed sbf version...didn't try CEE one tho
Did you find a solution to downgrading i to did the same thing.
errrm...
righto after reading that post again, i've had to change this :| I have had a similar problem myself, but i did manage to resolve it with 2 nights after work of swearing, redbull binges and many failed attempts :| I finally somehow managed to get Pays-ROM to load :| hope you get it sorted though
Im on a fixed sbf again..but my prob is to go back to 2.1
I hv restored 2.2 nand nd flashed 2.2 fixed cee rom..if i flash a full 2.1 sbf..wud it work?
From what I know, if you have flashed 2.51 or higher full sbf (non fixed) then you cannot go back down to 2.21.
However if you have flashed 2.51 or higher with the system and CDT code groups removed (i.e. fixed SBF), then you should be able to go back to 2.21 just by flashing the complete 2.21 sbf.
DO NOT flash a full sbf 3.4.2.145, because that will upgrade the CGs that prevent downgrade.
What if i flashed 3.4.2-145 (full sbf) and then restored 2.2 froyo nand and then flashed a 3.4.2-155 fixed SBF, now if i flash a full 2.1 sbf, would it work?
No, because once you flash any FULL sbf that is greater than 2.21 then you flash the parts of the ROM that are non-downgradeable. Once those partitons have been flashed then you cannot downgrade. That is why the FIXED sbf's should have those partitions removed.
For your information, the detailed investigation around these non-downgradeble code groups is in this thread:
http://forum.xda-developers.com/showthread.php?t=945035
Some very useful information in there, and they summarise that once you flash Version 2 Code Groups, you cannot go back down to Version 1 code groups.
kashavsehra said:
No, because once you flash any FULL sbf that is greater than 2.21 then you flash the parts of the ROM that are non-downgradeable. Once those partitons have been flashed then you cannot downgrade. That is why the FIXED sbf's should have those partitions removed.
Click to expand...
Click to collapse
Well, i did flash a fixed version of 2.2 sbf and then flashed 2.1 full sbf but that didn't work out and the screen went black...so i flashed 3.4.2-145 full so that atleast i could use my phone but it was a deblur version and i have no contacts...can't import contacts from sim either...so i just want to go back to 2.1 and then give my phone back to motorola...isn't there ANY way to remove those CG's off the rom you're on at the moment`?
as far as anyone here understands it, NO Can't be done
Defy to Bravo
Has anyone tried and tested the Defy ROMS (such as PaYs or JBoogie's) on the Motorola Bravo (MB520)?
I would really like to take the plunge, but I've read Bravo users have bricked trying Defy ROMS?
danxj3 said:
Has anyone tried and tested the Defy ROMS (such as PaYs or JBoogie's) on the Motorola Bravo (MB520)?
I would really like to take the plunge, but I've read Bravo users have bricked trying Defy ROMS?
Click to expand...
Click to collapse
Just dumb to try one phone's firmware on anothers. It is just like installing mac software onto windows
I believe the only to go back to 2.1 is to restore the nandroid backup of 2.1.
there are a few thread posting stock nandroid backup of 2.1 (except it's already rooted).
you have to flash also bootonly sbf based on the same version.
then you can manually remove superuser.apk and su manually using adb shell.
polaris441 said:
I believe the only to go back to 2.1 is to restore the nandroid backup of 2.1.
there are a few thread posting stock nandroid backup of 2.1 (except it's already rooted).
you have to flash also bootonly sbf based on the same version.
then you can manually remove superuser.apk and su manually using adb shell.
Click to expand...
Click to collapse
Did someone acutally used this method and was succesful? I have downloaded a stock nandroid and the related bootonly sbf. Furthermore i have the related full sbf file if i need it.
So you think its probably possible to put the nandroid on the sdcard, go to clockwork, wipe everything and then restore the nandroid. Afterwards i think it would be the best to remove the battery, put it back in and boot directly into the bootloader and from there flash the bootonly via rsdlite.
Im kind of scared to give it a try. What if something goes wrong? Can i go back to my last 3.4.x ROM?
Cu
Jokerchris2000 said:
Did someone acutally used this method and was succesful? I have downloaded a stock nandroid and the related bootonly sbf. Furthermore i have the related full sbf file if i need it.
So you think its probably possible to put the nandroid on the sdcard, go to clockwork, wipe everything and then restore the nandroid. Afterwards i think it would be the best to remove the battery, put it back in and boot directly into the bootloader and from there flash the bootonly via rsdlite.
Im kind of scared to give it a try. What if something goes wrong? Can i go back to my last 3.4.x ROM?
Cu
Click to expand...
Click to collapse
I've done this on 3.4.2.xxx version (full sbf flashed). What happens is that it goes to M screen and then reboot, then goes to M screen and reboots...this goes on and on but i haven't tried flashing bootonly. I don't know what can happen if i flash that but what i know is that you atleast DONT get a black screen, it does show M logo...
kashavsehra said:
From what I know, if you have flashed 2.51 or higher full sbf (non fixed) then you cannot go back down to 2.21.
However if you have flashed 2.51 or higher with the system and CDT code groups removed (i.e. fixed SBF), then you should be able to go back to 2.21 just by flashing the complete 2.21 sbf.
DO NOT flash a full sbf 3.4.2.145, because that will upgrade the CGs that prevent downgrade.
Click to expand...
Click to collapse
my phone came with 2.54 preinstalled i understand i cant get to 2.21. the question is, if i flash full sbf (not fixed) of 3.4.2 , can i get back to my stock 2.54?
thanks!
edit:
after some research, i will lose downgrade-ability. smg versions of 3.4.2 are +1 higher than my 2.54
I flashed froyo on my new defy 2.51 to Pays-ROM Defy v5.0 which is based on 3.4.3-11. It says my kernel version is 2.6.32.9.
I want to downgrade my phone to the original stock rom, to get my warranty back. Should I just flash it to the 2.51 eclair stock with rsd lite? or will that brick my phone?
It depends on whether you flashed a fixed SBF or not. If you flashed a fixed SBF of Android 2.2 (3.4.3-11) than you can flash a full SBF of Android 2.1 to your phone (look for it at the forum) and your phone will be alright. If you flashed a full Android 2.2 (3.4.3-11) SBF than it's not possible to get back to your stock rom (Android 2.1).
There's something I'd like to know about this, even if you go back to 2.1 for warranty, can the warranty guys still know you modded it?
What is the difference between fixed and full sbf ? How do I get to know which one I have?
I followed the steps on this post -
[ROM] Pays-ROM Defy v5.1 Froyo with Ginger feeling
This is what i followed --- :s
README - Step by step flashing guide:
You can go to step 5 if you already flashed 3.4.3-11 SBF, rooted and installed clockwork recovery or have ROM v5.0 or higher.
Don't wipe after you flashed the SPF or the ROM. Also no wipe is needed before or after a ROM update. But wipe before flashing a new SBF!
1.) Wipe your phone in recovery mode
2.) Flash 3.4.3-11 Motorola SBF with RSD Lite in bootloader mode
(The sbf is packed in a archive just extract it and then you get the sbf.)
3.) Enable ADB in the settings and root your device with SuperOneClickRoot for Froyo. Then do a reboot.
4.) Disable ADB and install clockwork recovery image
5.) Put the ROM.zip to your SD Root and boot into clockwork recovery
6.) Flash the ZIP + reboot and enjoy
@LeoD7K
I don't believe they can see which rom you've flashed in the past so you'll be save if you revert to your old rom. (Someone on this forum told me that)
@pragund
I'm not sure whether this is a fixed SBF, you should ask the developer who started the thread. Another way to find out whether it's fixed is to check the file size. A fixed SBF is very small, around 15-40 MB whereas a full SBF is around 300 MB. So if you still have the SBF file you flashed you can check the file size. Also you have to make sure you've never flashed another full SBF before. So if this was your only upgrade and it's a fixed SBF you can downgrade back to Android 2.1.
my sbf file size was 360mb!
Is there any other way to get to an original stock rom? so as to get warranty?
Well the only option left is to check whether your carrier has released an official 2.2 update. If that's the case you could update to that and still claim your warranty as it's an official rom. Every carrier should release an official Android 2.2 rom at some time so if it's not released by your carrier yet it should be just a matter of time. Aside from that there are no other options to get your warranty back. But also I'm not sure if you can update from one Android 2.2 to another Android 2.2.
I bought it outright unlocked in india ... do I get a direct update from motorola?
After trying to reinstall the factory sbf on my (us t-mobile) defy I cannot get past the initial blur activation. I have tried to skip the set up but it just takes me right back to the first page. Worse yet when I try to activate blur it will freeze up and requires reboot. I have re-flashed the sbf and even tried a few others with the same result. Any idea what is happening here and how to fix it?
JORDN_U3_6.19.0 - no boot
JORDN_U3_6.36.0 - above problem
3.4.2-107 - wont flash
3.4.2-164 - above problem
message me with email address so i can send u right sbf
pmp326 said:
message me with email address so i can send u right sbf
Click to expand...
Click to collapse
What SBF do you have in mind?
I also tried to restore my stock US 2.2.1 after installing CM7 - just to see if it works.
So I restored my 2.2.1 nandroid and the applied this sbf: p3_jordan_umts_jordan-user-2.2.1-3.4.2-107_JDN-4-000000-release-keys-signed-T-Mobile-US.sbf
It worked, however, this will not bring you back to the official 2.2.1 US Froyo because above SBF is an earlier beta version and you will end up with 34.4.4.MB525.T-Mobile.en.US_3.4.2-107_JDN-4.
The official version is 34.4.9.MB525.T-Mobile.en.US_3.4.2-107_JDN-9.
you have to restore through nandroid from 2.2.1 test keys
you did make a backup before you went flashing right?
pmp326 said:
you did make a backup before you went flashing right?
Click to expand...
Click to collapse
Not sure if this question is directed at me but yes, I made a nandroid backup of my stock US 2.2.1 before installing CM7 (nordic + rc1v2 + nightlies).
Then I restored my nandroid (leaving the kernel version at the CEE one from CM7) and applied the p3_jordan_umts_jordan-user-2.2.1-3.4.2-107_JDN-4-000000-release-keys-signed-T-Mobile-US.sbf.
Then you end up with 34.4.4.MB525.T-Mobile.en.US_3.4.2-107_JDN-4, which is not the official US Froyo.
I don't really care about that (I was just testing it out) but if somebody needs to go back to stock US Froyo in order for example to send it to warranty this will not work.
you have to root 221 install clockwork recovery then restore original backup
that's what i did - but the restore will NOT restore the 2.2.1 kernel
there is also a 2.2.1 boot only sbf which is the kernal
I assume you mean T-mobile froyo bootonly.sbf, which is from Jan 26 2011. I haven't applied it but I'm quite sure that's also not the official 2.2.1 version.
My point is that unless there's a different and newer 2.2.1 SBF (other than 2.2.1-3.4.2-107_JDN-4) you will not be able to go back to stock official US 2.2.1 froyo and claim warranty.
I am using Cyanogenmod 7, but have done lots of tests and my phone is full of crappy stuff.
I was thinking about "starting again from scratch". At first, downgrade the Cyanogenmod to the Nordic SBF, then install aaaaaaaaaall the stuff again.
I couldn't find anywhere on the forum any guide for downgrading CM7 to Nordic SBF. My Defy came with 2.1... I just want to install 2.2 Nordic again.
Thanks,
V.
Wipe data/cache and reflash should be ok. Have you tried to do it before going back to 2.2?
Well... it's a long story.
I bought my China Retail Defy ME525 this May, accidentally flashed 3.4.2-155 deblur as stock rom. Two day before I accidentally flashed JORDN_U3_97.21.51 (again ).
Now I stuck there and unable to flash any other roms in RSDlite. I'm trying to update it to froyo and later restore my CM7 backup.
Here's my questions:
According to here, it is possible to get an OTA update. But did anyone actually make that?
Would ME525 be unable to get T-Mobile update due to its IMEI?
(This is a silly one, however I really don't find the answer). How could it be possible to install an nandroid backup after flashing a fixed sbf? my led never turn blue after I flashed the sbf. Cannot enter bootmenu PS: The fixed sbf is based on 3.4.2-107 TMobile US full sbf)
Is it possible to make up a update.zip that acts as installing nandroid backup?
Would it be the same to install a nandroid backup first and later flash fixed sbf?
you install the nandroid backup first and then flash the sbf...
JORDN_U3_97.21.51 is an eclair sbf which contains CG39.smg and CG31.smg ver=5. You can no longer flash ANY froyo sbf. In fact the only sbf you can flash now are 2.3.4 and 2.3.6 sbf and of course JORDN_U3_97.21.51. 2.3.6 sbf is ver=6 and has no know downgrade possibility. Follow this guide to get back to froyo http://forum.xda-developers.com/showpost.php?p=14762402&postcount=143
Keep in mind that this is a "dirty" method of getting back to froyo and you are ALWAYS stuck on ver=5. What that means is that even after getting to froyo using this guide you are NOT free to flash any sbf you like. You can however, use this guide to get to froyo and install cm7 from there