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Upgrade/Downgrade Kernels

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People who are stuck with 4.5.1-134_DFP-13XX Kernels and or any BL6 SBFs may now freely switch between any kernels they require.

Say for example, to upgrade to Walter's fixed SBF of 4.5.3_109 Kernel from 4.5.1-134_DFP-13XX, do the following.

1. Flash Defy-BL6Downgrade-CDT.sbf through RSD Lite.
2. Flash walter's 4.5.3_109 kernel sbf right away after that or an update zip package if you have a functional recovery. (Actually, you may flash any kernel. Even Froyo kernels)

You're done.

Wipe data/cache in case you get stuck at boot. No more bootloader errors.

This is based on http://forum.xda-developers.com/show....php?t=1486731

Credits go to dlhxr.

Note: If you have an SBF which you want to flash after this, just the BL6Downgrade-CDT.sbf is enough.

If you want to get into a custom recovery (only if you already have it), then you have to flash BL6Downgrade.SBF, or you will end up with a Bootloader ERR screen.

Files:
BL6Downgrade.SBF [34MB] - http://www.mediafire.com/download.php?vdpp0nnr5f12e95
Attached Files
File Type: zip BL6Downgrade-CDT.zip - [Click for QR Code] (42.7 KB, 862 views)
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18th March 2012, 09:51 AM |#2  
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i'm stuck with [SBF]Android 2.3.6 - 4.5.1-134-DFP-188
this will work?
[SBF]Android 2.3.6 - 4.5.1-134-DFP-188 is BL7
18th March 2012, 10:01 AM |#3  
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Quote:
Originally Posted by pss214

i'm stuck with [SBF]Android 2.3.6 - 4.5.1-134-DFP-188
this will work?
[SBF]Android 2.3.6 - 4.5.1-134-DFP-188 is BL7

I haven't tested it with BL7. Could you check if it works?

PS: I was previously stuck with 134-DFP-1321.
Now on 4.5.3_109-25.
18th March 2012, 10:20 AM |#4  
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Quote:
Originally Posted by prasannavl

I haven't tested it with BL7. Could you check if it works?

PS: I was previously stuck with 134-DFP-1321.
Now on 4.5.3_109-25.

It cannot work with BL7,
because it is bl=6 2.2 Froyo SBF。
after you flash the SBF you can flash any BL>=4 kernel.
I just try it yesterday, so great.
18th March 2012, 04:20 PM |#5  
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So, i will try this.
I want so much use the MIUI on my Defy+
I can downgrade it using this method?
18th March 2012, 06:39 PM |#6  
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Hey guys,

I tried the steps mentioned above.
I had the 4.5.1-134-DFP-231 on my Defy+ and wasn't able to root it.

So I downloaded the Defy-BL6Downgrade.sbf and the 4.5.2-109-DHT-22-fixed.sbf and flashed them in this order with RSD Lite 4.9

Now my screen stays completely black. But it seems to enter the boot loader as RSD Lite shows the device as "connected..."

When I flash again, the screen turns on and shows "SW Update In progress".
But still no screen...

Any help on that?
18th March 2012, 07:28 PM |#7  
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Already posted
http://forum.xda-developers.com/show...amera with bl6

Sent from my MB525 using xda premium
18th March 2012, 07:43 PM |#8  
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just tried here
and its WORKING!

THAAAAAAAAAAAAAAAAANKS SO MUCH
now im using the MIUI Pikachu Edition on my Defy+
18th March 2012, 08:14 PM |#9  
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Quote:
Originally Posted by dFde

Hey guys,

I tried the steps mentioned above.
I had the 4.5.1-134-DFP-231 on my Defy+ and wasn't able to root it.

So I downloaded the Defy-BL6Downgrade.sbf and the 4.5.2-109-DHT-22-fixed.sbf and flashed them in this order with RSD Lite 4.9

Now my screen stays completely black. But it seems to enter the boot loader as RSD Lite shows the device as "connected..."

When I flash again, the screen turns on and shows "SW Update In progress".
But still no screen...

Any help on that?

For now only what you can do is reflash it with DFP-231 to make it working and waiting for root like everyone with BL7.

Defy Plus 4.5.1-134 DFP-231 CEE
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18th March 2012, 08:45 PM |#10  
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So we could say this is the ultimate setup for those with Obsessive-ROM Updating Disorder? So we can move freely between froyo and gb without flashing full sbf every time?
18th March 2012, 10:19 PM |#11  
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I can go to Froyo with flash this downgrade fix?
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