Try this.
With your phone off and unplugged. Enter download mode by pressing and holding the power and volume down buttons and plugging on the USB cable before the lights blink.

Sent from my SGH-I777 using xda premium

Originally Posted by ace08401

I used:
I777UCKH7-CL503881 FULL Odin3 One-click Downloader: I777UCKH7-CL503881-Full.7z (Contains I777UCKH7-CL503881-Full.exe.)

which is listed under I777UCKH7-CL503881 Stock Binaries.


Currently in the process of getting my buddy to build me a jig...dont really want to wait....anything else I can do?

I guess my FIRST question should of been YOU HAVE A I777 AT&T SGS2 RIGHT? Please tell me you don't have a Skyrocket i727? Please update this post with your progress.

Originally Posted by creepyncrawly

Did you use the one-click downloader? And which version did you use, the one from the return to stock guide, or the one from the Download Repository? If you didn't use the one from the Download Repository, which contians the bootloaders and param lfs, then you should first try to flash that, since you almost certainly flashed I9100 bootloaders and param onto your phone.

Creepy, that is why I linked him the Download Repository and even went back and edited my post to give him the name of the exact file he needed... I have a bad feeling he is on a i727....

Originally Posted by snipe2nite

I guess my FIRST question should of been YOU HAVE A I777 AT&T SGS2 RIGHT? Please tell me you don't have a Skyrocket i727? Please update this post with your progress.

Creepy, that is why I linked him the Download Repository and even went back and edited my post to give him the name of the exact file he needed... I have a bad feeling he is on a i727....

Yes, I was typing too fast without thinking. All I had to do was look at his Odin output to see that he had the right file. Lol.

Anyway, OP I hope you get it resolved and are able to recover your phone.

yes s2 model sgh-i777.

Quick update: Jig is built...going to pick up in a few...

just so I have this straight and plesae advise if i have to change up anything or modify..

1.get jig - reset the whole thing...
2. flash the phone with a stock kernel

http://forum.xda-developers.com/show....php?t=1313659

per ^ thread.

thanks for being helpful to all those contributing.

as of 2:57pm est on 6/10/2012....the phone is able to go into download mode

still havent picked up jig

ODIN MODE
Product Name: Gt-i9100
Custom Binary Download: Yes (4 counts)
current binary: custom

Originally Posted by ace08401

as of 2:57pm est on 6/10/2012....the phone is able to go into download mode

still havent picked up jig

ODIN MODE
Product Name: Gt-i9100
Custom Binary Download: Yes (4 counts)
current binary: custom

Follow the guide you linked, except refer to step 3 special problems, and go to the Download Repository and get the version of the stock rom that contains bootloaders and param.lfs. Your flashcounter says you have flashed the I9100 secondary bootloader, so the package you flash needs to replace that and the others from I9100.

If i remember, you already flashed that? and it failed? yes, well if it fails again, try flashing the separate parts individually, starting with the param.lfs, then sbl.bin.

just picked up jig....

and its not working....
used 3 100ohm 1watt resistors from radio shack...
tried to connect to 4th and 5th pin from my understanding they are on the right side of the stripped down mini usb plug....nothing happend

phone was off...held the jig for about 10 seconds...nada

turned phone into ODIN Mode....held jig for about 10 seconds...nada....

where am I going wrong...seemed so simple from the instructions...

My dude a jig has a mini usb connector that you plug in to the usb.... Not something you hold to the pins... If you get get in to DL mode you don't need the jig... Give me a few I will get on my computer and try to help you. Just put your phone down and take a deep breath. You are going to need to flash all the files one by one let me do some reading I will try to give you step by step instructions.... HOLD TIGHT

Sent from my SGH-I777 using XDA App

Creepy, if you can help him please do.... Can you tell him what files go in what slots... You're the best either way.....

Sent from my SGH-I777 using XDA App

I've never made a jig so I don't know how hard it is to touch the right contacts in the microusb socket. But 1 watt resistors have fairly large diameter wire leads which would make it harder, I think. What you need to make your own jig is 1/4 watt resistors with the highest tolerance rating you can get. There are multiple threads about building a jig. if you google for them, you'll get better info than I am giving you.

But snipe2nite is right... the only thing a jig does is put you into download mode, and clear the flash counter. So, if you can get into download mode the standard way using the volume keys and usb cable, then you really don't need the jig, as far as I know. Don't know what task was talking about earlier, really.

As far as flashing the individual parts, the instructions are in the Download Repository. Only param.lfs and secondary bootloader are available as .tar's. They should go into the PDA slot in Odin3.

It's also remotely possible that the i9100 package you flashed screwed up the partition table. In that case, there is a PIT file in the Download Repository which can be put into the PIT slot in Odin3 when flashing the full package. I have the .tar package on my hard disk which I can make a dropbox link for if you need it.

Or you could use Heimdall command line to flash it, using the files available in the Download Repository. You'll need to get the correct command line arguments since I don't have that for flashing with PIT.