Samsung Epic 4G Lag Fix: RFS to EXT4 for Froyo DK28

[ragnarokx]

You're trying to flash stock Froyo with Odin3+v1.61 correct? A few things to try:

restart both the computer and phone and try again
use a different USB port and/or cable
redownload the .tar.md5 file

 

[lancelot916]

You're trying to flash stock Froyo with Odin3+v1.61 correct? A few things to try:

restart both the computer and phone and try again
use a different USB port and/or cable
redownload the .tar.md5 file

done
done
done

Sorry, still the same. MD5 invalid

 

[ragnarokx]

Try removing the ".md5" from the end of that file and then flashing it with and without the .pit file.

 

[lancelot916]

try removing the ".md5" from the end of that file and then flashing it with and without the .pit file.

yes it worked

 

[willmsbrg]

I wanted to offer a quadrant benchmark report after using this for almost 24hrs. Running the benchmark after starting the phone with no additional programs running beyond the os and other needed apps.

I got 3 benchmarks of 1524, 1514 and 1503 which is much better than I had running the old file system even on dk-28.
Latest benchmark 1576...

 

[Mo_Chedda]

Dint work, every step went accordingly except 5a I flashed it through the new clockwork but it aborte, then I tryed with the old clockwork it installed the quantum rom and the dk28-ext4kernel-final.zip but when I rebooted it got stuck on the samsung screen. HELP PLEASE :-(

 

[ragnarokx]

You can only use ClockworkMod Recovery v2.5.1.2 - flashing anything with v2.5.1.0 will not work. Are you sure completed Step 4f successfully? If you're not sure I would try starting again from that step.

 

[Mo_Chedda]

I tryed to do it over and step 4f went thru fine but the rom instalation still aborts maybe I should try midnight insted of quantum?

 

[lancelot916]

I tryed to do it over and step 4f went thru fine but the rom instalation still aborts maybe I should try midnight insted of quantum?

this happened to me too. do step 4f again and make sure you plug in or re-plug in usb cable. first time it seemd it worked but it was way too short. when I did it again it was much longer install for 4f and then step 5 (quantum ROM) loaded fine

 

[lancelot916]

FYI, it seems to be after EXT4 (or perhaps quantum) my camera pictures load slower. maybe RFS is optimized for this and EXT4 isn't.

 

[Mo_Chedda]

this happened to me too. do step 4f again and make sure you plug in or re-plug in usb cable. first time it seemd it worked but it was way too short. when I did it again it was much longer install for 4f and then step 5 (quantum ROM) loaded fine

thanks! tryed it till in lasted for a while and that fixed it!! this thing is blazing fast awsome lag fix, samsung should incorporate this

 

[BBooDad]

Thanks Ragnarox for the instructions! After initially trying Froyo, and almost bricking my phone, I was scared off for a month. However, I got tired of the blah 2.1 and wanted the Apps2SD so I could fit more medical apps. So I first Odin'd to an extended Froyo (couldn't get the Froyo here to work in Odin due to a bad hash value). Then did the prepare and other files onto SD here. Then after I couldn't get the install-ext4.bat to work, and as I had already wiped data, etc, I put

ext4-formatter.zip on my SD

from [MOD] Epic4G EXT4 Support [Froyo Only] [No More RFS!][Updated/Fixed v1.3] - xda-developers and it worked. then the rest of the installation of Quantum ROM and DK28ext4 kernel went fine.

Now I am up and running and installing all over again like mad.

thanks again - much less traumatic than first time!

 

[Death Roe]

Now after I flash the EXT4 Formatter and flash the EXT4 ROM I want, do I have to do the update.zip before rebooting the system to start on the new ROM?

 

[Mo_Chedda]

How can I get the samsung widgets back? I have mid night ext4 and I tryed flashing the widgets with the new clockwork but no luck, anyone know how to?

 

[Tech_Hunter]

The samsung widgets only work with touchwiz. If you want to use them, you need a ROM with touchwiz. I know midnight doesn't come with it, not sure what ROMs do.

No offense meant, but I can't really imagine why you would want to use them. There are much better replacement options.

 

[ragnarokx]

Now after I flash the EXT4 Formatter and flash the EXT4 ROM I want, do I have to do the update.zip before rebooting the system to start on the new ROM?

No update.zip required, after you finish the procedure just boot up.

How can I get the samsung widgets back? I have mid night ext4 and I tryed flashing the widgets with the new clockwork but no luck, anyone know how to?

Try Quantum ROM - it has TouchWiz and all the widgets.

 

[lancelot916]

anyone else experiencing slow dcim loads for pics?

 

[Paul627g]

anyone else experiencing slow dcim loads for pics?

No problems here. I have over 100 pics on my device and when I goto gallery or use any other methods of opening the DCIM pics its instant. Very quick over pre-EXT4.

 

[musclehead84]

I did this ext4with midnight rom and the gingerbread theme. It fast as looks good. I also installed the ext4 on the dk28 extended rom and it works just fine.

 

[ragnarokx]

Good to know it works on the extended DK28. The developer of this EXT4 conversion was advising against that version of Froyo.