[Q] Tried everything. Golden boy needed

[Kari458]

Hey.

I've been working recently with my brother's AT&T i777 Samsung Galaxy S2. I couldn't root it at first, then i found the note that i777 does not have the bootloader lock, and then i proceeded with installation of CM stable version, step by stop, according to this page:
Install_CM_for_i777 (cannot post links)

So...i downloaded file, renamed it and placed it in my Galaxy S2 internal memory (the same folder where i put files to my Galaxy Nexus).
Phone does not have stock recovery, so i thought about flashing it via Odin after changing file format in Total Commander.
Anyway, i took out battery, placed it in again and...BANG! Phone only boots while on charger or USB cable. I am able to get it into Download mode. That's why i tried to repair it using almost all firmwares (via Odin 1.85), i used Siyah kernel to get it right, and i even flashed the proper bootloader to make it move. On the way, i also flashed some i777 firmwares that were already rooted. No results.
IT ONLY SHOWS THE EMPTY BATTERY SCREEN, FLASHES, AND BACK AGAIN. LOOP.

I would reallly, Reallllly appriciate help.
Thanks!

 

[cyril279]

You've mentioned a lot in your post, some of which isn't very clear to me, so I'm going to ask a few questions in an effort to fully understand where you are. (I'm less worried about how you got there).
The immediate goal will be to get your pone booting into the stock samsung distribution.
We'll cover rooting and custom firmware later.

You are able to get into boot mode (that's a good sign), but are you flashing the stock UCMD8 firmware via desktop Odin?
If no, then flash the stock UCMD8 firmware (see sig)
If yes, when the flash is complete, does the screen show the result: pass?

-Cyril

Hey.

I've been working recently with my brother's AT&T i777 Samsung Galaxy S2. I couldn't root it at first, then i found the note that i777 does not have the bootloader lock, and then i proceeded with installation of CM stable version, step by stop, according to this page:
Install_CM_for_i777 (cannot post links)

So...i downloaded file, renamed it and placed it in my Galaxy S2 internal memory (the same folder where i put files to my Galaxy Nexus).
Phone does not have stock recovery, so i thought about flashing it via Odin after changing file format in Total Commander.
Anyway, i took out battery, placed it in again and...BANG! Phone only boots while on charger or USB cable. I am able to get it into Download mode. That's why i tried to repair it using almost all firmwares (via Odin 1.85), i used Siyah kernel to get it right, and i even flashed the proper bootloader to make it move. On the way, i also flashed some i777 firmwares that were already rooted. No results.
IT ONLY SHOWS THE EMPTY BATTERY SCREEN, FLASHES, AND BACK AGAIN. LOOP.

I would reallly, Reallllly appriciate help.
Thanks!

 

[Kari458]

Yup

You've mentioned a lot in your post, some of which isn't very clear to me, so I'm going to ask a few questions in an effort to fully understand where you are. (I'm less worried about how you got there).
The immediate goal will be to get your pone booting into the stock samsung distribution.
We'll cover rooting and custom firmware later.

You are able to get into boot mode (that's a good sign), but are you flashing the stock UCMD8 firmware via desktop Odin?
If no, then flash the stock UCMD8 firmware (see sig)
If yes, when the flash is complete, does the screen show the result: pass?

-Cyril

Thank you for your answer and concern Cyril. But i don't know how (i'm still wondering why) i managed to get it right. In rage, i pushed the battery from the model i9100 (GSM Galaxy S2) and....it BOOTED! The rom and kernel was not right so i flashed already rooted version of firmware 2.3.6 and from that step, when i noticed i had superuser, i installed CM 10.2 stable ROM. During the process of installation of CM 10.2 i had to switch batteries (at most 3 times change battery in order to push phone to recovery and escape bootloop during installation of gapps). Now the phone works well with both batteries and is safe and sound. BUT STILL!!! I wonder why it reacted on the battery from i9100 model? Why this was the factor the phone needed to procede with further modifications? Any ideas? Feed my curiousity, lol.

Charlie

 

[cyril279]

I've raged on this device a time or three myself, I promise.

The most abnormal part of each of your posts is the battery involvement. You shouldn't have to touch the battery at all for recovery mode, download mode, or flashing, so I would guess that you're up against dirty or failing charge port, a near-dead or failing OEM battery, or similar issue which made your flashing journey more troublesome than it should have been.

There are several posts [like this one] about troubles using i9100 batteries. They fit and function, but exhibit undesirable charging issues, which consequently tend to get blamed on some other aspect of the device.

The symptoms of a dirty or failing charge port also commonly mis-direct users to blame firmware, batteries, and everything-else.

-Cyril

Thank you for your answer and concern Cyril. But i don't know how (i'm still wondering why) i managed to get it right. In rage, i pushed the battery from the model i9100 (GSM Galaxy S2) and....it BOOTED! The rom and kernel was not right so i flashed already rooted version of firmware 2.3.6 and from that step, when i noticed i had superuser, i installed CM 10.2 stable ROM. During the process of installation of CM 10.2 i had to switch batteries (at most 3 times change battery in order to push phone to recovery and escape bootloop during installation of gapps). Now the phone works well with both batteries and is safe and sound. BUT STILL!!! I wonder why it reacted on the battery from i9100 model? Why this was the factor the phone needed to procede with further modifications? Any ideas? Feed my curiousity, lol.

Charlie