Develop Bugs

[Q] Downgrade to 2.59

I am on JRDNEM_U3_2.59.0 INDIA
Is it possible to come on Eclair JRDNEM_U3_2.59.0 after direct flashing any froyo SBF?
So far I have flashed my Defy with fixed SBF method, afraid of loosing warranty if not able to downgrade.
Dont even know the version of cg31.smg and cg39.smg in U3_2.59.0.
Thanks...

downgrade back...
If you have flashed a fixed sbf, then yes...

depends on the sbf file. some full SBFs are downgradable
but to make sure, use a Nandroid backup & a fixed sbf

[Q] Clarification on Gingerbread Update

Droid-X with stock Froyo (2.3.340.MB810), rooted with Z4Root.
Am I correct in understanding that I will NOT be able to flash the official GB release from Verizon because I'm rooted? And that the only way back is to SBF back to the non-rooted 2.3.340.MB810 release?
Just want to make sure I understand before I go to the trouble of finding a valid SBF file and restoring back...
THanks.

Yeah you gotta sbf to .340.

[Q]noob question before upgrade to CM7

Before i start to flash CM7 ROM ... i had a question which i could find a concrete answer in other threads or the FAQs :
I'm on Defy US t-mobile 2.2.1 Froyo,
Can I get back to this for warranty by just flashing using the original SBF??
Or do i have root first and take a nandroid backup??
please adivce.

I come from original US Tmobile firmware also. There is no sbf for the official 34.4.9 system as it was an OTA update! HOWEVER you CAN EASILY flash back to 2.1 eclair system 3.6.360 using sbf and simply do the OTA update. Don't worry about a thing they all have (even official US Tmobile eclair) cg version=4. So there are no issues down-grading. Just don't flash the newest leaked Gingerbread 2.3.4 as it has a cg version=5 and can't be down-graded. So the CONCRETE ANSWER IS YES YOU CAN DOWNGRADE FROM CM7 BACK TO OFFICIAL 3.6.360(2.1.1) USING SBF AND THEN APPLY THE OTA UPDATE FOR 34.4.9(2.2.1)

[Q] serval question for JORDN_U3_97.21.51

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

if used SBF 21.51 tell me how to update to CM7

My phone didn't boot after a CM9 install. I installed JORDN_U3_97.21.51 SBF. Which is a 2.1 update 1 Eclair.
I can get it rooted, go into recovery> but i don't know how to install a working CM7. What method to adopt?
Also Froyo SBF's don't even start the phone. I did a wipe/data in stock recovery before installing.

Problem update
Problem update I red that the above SBF has a CG Version 3: SBF 2.51 (Éclair) (Defy) so i installed several CG Version 4: SBF 3.4.2 (Froyo) (Defy).
They don't work. RSD says PASS but phone is dead .No stock recovery no boot. Only way to get it back to life is if i flash the eclair again.
I red that if i get a back screen when booting i have installed a lower CG version. As i tested with version 4, version 5 GB is the only option. I didn't try it out because there are some issues. Froyo would have been much more easier.
Update 2> got it to work with this:
http://forum.xda-developers.com/showthread.php?t=1486731&highlight=cg