Hi!
I'm a newbie on defy. I just installed jboogie3 2.0 rom in my defy, but im thinking in changing it 'cause it's gave me problems with battery draining really fast.... so, im thinking to put cm7 on my defy, but i want to know if it possible to downgrade to stock froyo if something goes wrong.
((sorry for my english))
Thanks!
As far as i know, JBoogie is to be installed via nandroid backup and then you have to flash a fixed sbf.
If you have followed this way, you can downgrade to froyo by flashing a full sbf or always a nandroid + fixed sbf if you are still keeping downgrade ability to Eclair ( useless imho ).
Beware, if you have flashed a full sbf GingerBread leaked rom there's no way to go back to froyo, nor eclair.
when you say a fixed sbf, would the one linked to in the guide, here:
http://forum.xda-developers.com/showthread.php?t=1054447
be a fixed sbf, or is it another one?
That's a full sbf, not a fixed.
Anyways is a froyo one, so you won't have any problems in downgrading.
Thnx, everyone! Now i have installed cm7 on my poweful defy
Related
anybody now to downgrade 2.2 back to stock 2.1, i found som info but refers to the nexus 1. it advices to unlock the bootloader by flasing a .zip file (goto androidtechnical.info and get the passimg.passion_.zip file load it to your sd card root name it passimg.zip (just one zip ext) and flash wahla)
I was wondering if i can apply this to my EVO and be done with it?
just flash to 2.1 rom.
whats your reason?
Downgrading will only be possible once it has been determined how to root an unrooted 2.2 EVO. That is not possible, at-the-moment. We will just have to wait....
if you aren't rooted currently there is no way to downgrade or root 2.2.
so in short you are stuck at stock 2.2 until the amazing devs figure out a new bug to exploit to provide root.
but just to confirm, if i'm rooted since day 1(original 2.1 root) and i installed a rom from XDA(OMJ's 2.2 froyo) i can downgrade simply by installing his older 2.1 rom right?
SilverStone641 said:
but just to confirm, if i'm rooted since day 1(original 2.1 root) and i installed a rom from XDA(OMJ's 2.2 froyo) i can downgrade simply by installing his older 2.1 rom right?
Click to expand...
Click to collapse
Not sure if you can flash a 2.1 OMJ over a 2.2 OMJ (or similar) becasue I haven't done it ( I don't think you can), but if you run simple root again (or do Toastcfh's part 2 manually) and load the engineering build, you should be able to again flash a 2.1 to downgrade...Same idea as what you need to do to downgrade in order to flash a RUU if you have to send your phone back for any reason...
stilv said:
just flash to 2.1 rom.
whats your reason?
Click to expand...
Click to collapse
i tryed that, Froyo locked up my bootloader. I have too many issues with 2.2 for my taste. I want to go back to a rooted 2.1 and flash a custom Froyo Rom
SilverStone641 said:
but just to confirm, if i'm rooted since day 1(original 2.1 root) and i installed a rom from XDA(OMJ's 2.2 froyo) i can downgrade simply by installing his older 2.1 rom right?
Click to expand...
Click to collapse
yes! this is what I want to be able to do. having an original 2.1 root allows you to flash any ROM Sprint Stock or ortherwise, its almost like changing skins but your base never changes. The only time things change permanently is when you do an UPDATE. Doing an UPGRADE only brings the eye-candy that only a custom ROM can provide.
Hi all devs.
i call all devs to help on downgrading from firmware 2.51 because the new leaked froyo rom wont boot if we have 2.51 flashed so please help us to downgrade or to flash the froyo rom without downgrde and boot it correctly.
-we can start discovering whhich files are provoquing this problem, for example i flashed the froyo sbf and then flashed only the boot from 2.51 but no way. if some one has some knowledge on making separate sbf files( only boot or only recovery or something) could help us it would be great.
sorry for my english.
thanks.
Currently I am on Uk 2.21 2.1 rom and I want to upgrade to the new leaked UK 2.2 rom.
But actually I am happy with my rom because it is quite stable. So if I upgrade to 2.2 is there any way to go back and why? What about I build a backup for the Rom in advance and restore it later?
Thanks.
Hey before you flash uk rom 2.51 you shout do a nandroid backup because if you flash 2.51 you couldn't go back to 2.21 by flashing a sbf file. You only could root 2.51 with superoneclick and restore your old nandroid backup of 2.21.
Just follow the guide on Development forum. Got the uk 2.2 rom working yesterday, played around a little bit and are now back on 2.21 stock again and just restored a nandroid backup, nothing has changed. No prob.
Sent from my Defy
If I'm now on the 2.2 US Update with 2.2 Boot SBF, can I/how do I get back to completely 2.1 stock? I know I can unroot, but what about SBF/ROM/etc?
hah2110 said:
If I'm now on the 2.2 US Update with 2.2 Boot SBF, can I/how do I get back to completely 2.1 stock? I know I can unroot, but what about SBF/ROM/etc?
Click to expand...
Click to collapse
No I dont think you can downgrade from an official 2.2, besides there is no stock 2.1 US sbf you can flash to at the moment.. This is the closest to stock US you are going to get.
Wait - I have a Nandroid of my 2.1 stock. Would that do it or that would put me back in the same place as being stuck in a bootloop since now I have a 2.2 SBF?
u can restore it and after that 2.1 sbf boot only file
and learn to use search function ..or use faq ...more or less all your questions have already been answered ....no need to open a new thread for each trouble u ran into
and for your camera problem ull find an answer for that in jboogies bluerless ginger thread i had the same problem
hey all
i was after a little help,i am currently running the official uk 2.2 rom on my T-mob Defy.Now T-mob has released the official 2.2 i would like to put that on my defy so i can make a nandroid backup incase of warranty issues,my question is how do i get my phone back to a stock state (from 2.2uk to 2.1 t-mob)so i can download the update as a backup?
thanks for your help
scottie
or point me to a thread where i can download a fixed t-mob 2.51.sbf as ive been reading and reading and reading...but getting nowhere....please a little help!
Hi Scottie
Both the t-mobile 2.21 and 2.51 sbf files are available here:
http://and-developers.com/sbf:defy
Don't forget that if you want to keep downgradability, you need to flash a 'fixed' 2.2 rom plus the system nandroid.
Rgds,
Kash.
thanks for the pointer,so...i want to get back to 2.51,i have my backup of original,so do i just flash the 2.51 rom then restore my backup?or have i missed something ?
You have Froyo with Full sbf installed?
Then you can not directly downgrade to Eclair 2.1!!
You need a Nandbackup from a 2.51 Eclair Rom, and a Fixed 2.51 SBF.
If you have this, then reboot into Recovery, do a Fullwipe and restore the 2.51 Nandbackup.
After this, reboot directly into the Bootloader Mode (hold the Vol+ Button), and flash via RSD Lite the fixed 2.51 SBF.
thanks for the help...got fed up with buggering around and installed cm7 instead..its awesome!!