[HOW TO] Safely Boot i9100 ROMS on the sgh-i777

[StoneyJSG]

NOTE: BEWARE OF GREMLINS! Just because this worked for me, does not mean it will for you. Proceed at own risk! I am not responsible for anything that happens to your phone if you use this guide!

What you will need (to boot TW ROMS):
A rooted galaxy s2 sgh-i777 running stock Android 4.1.2
ClockworkMod Recovery
Cook's safe pre-load ROM wipe
Jeeboo kernel
A TW galaxy s2 sgh-i9100 ROM

What you will need (to boot AOSP ROMS):
WARNING! I HAVE NOT TESTED THIS! TEST AT OWN RISK!

A rooted galaxy s2 sgh-i777 running stock Android 4.1.2
ClockworkMod Recovery
Cook's pre-load ROM wipe
Shift Kernel (use the one for whichever Android version you're going to)
An AOSP sgh-i9100 galaxy s2 ROM

The Procedure (for booting TW ROMS):
Boot into clockworkmod recovery
Make a Nandroid backup
Flash Cook's safe pre-load ROM wipe .zip file
Flash ROM (I used WizzedKat ROM v3)
Flash jeeboo kernel
Reboot
Done! Enjoy Android 4.4.2 kit kat (if you flashed WizzedKat)

The Procedure (for booting AOSP ROMS):
Again, I HAVE NOT TESTED THIS!
Boot to clockworkmod recovery
Make a Nandroid backup
Flash Cook's pre-load ROM wipe .zip file
Flash ROM
Flash shift kernel
Reboot and pray your phone boots up because...surprise! I haven't tested this so I am not sure if it works or not.

How to Get Back to Stock:
So you've booted a ROM, played with it, and now you want to go back to stock ROM...no problem! Here's how:

Boot into clockworkmod recovery
Flash Cook's safe pre-load ROM wipe if coming from TW. Flash Cook's pre-load ROM wipe if coming from AOSP
Restore your Nandroid backup (if you made one)
*OPTIONAL* Flash jeeboo kernel or AJ kernel (both work with the stock ROM on the i777)
Reboot

Known Bugs

After rebooting back to stock, your baseband version might still say whatever it was while you were on the ROM you just were on and your phone may act funny when trying to make a call.

To fix this you will need to flash the stock MD8 Odin .tar file in mobile odin OVER your Nandroid backup you just restored. You can probably use Odin for the PC as well. This should NOT affect anything as far as apps and personal data goes, however you will have to reroot using the framaroot app and reflash clockworkmod recovery as well.

Happy flashing!

 

[Tmobilefan906]

NOTE: BEWARE OF GREMLINS! Just because this worked for me, does not mean it will for you. Proceed at own risk! I am not responsible for anything that happens to your phone if you use this guide!

What you will need (to boot TW ROMS):
A rooted galaxy s2 sgh-i777 running stock Android 4.1.2
ClockworkMod Recovery
Cook's safe pre-load ROM wipe
Jeeboo kernel
A TW galaxy s2 sgh-i9100 ROM

What you will need (to boot AOSP ROMS):
WARNING! I HAVE NOT TESTED THIS! TEST AT OWN RISK!

A rooted galaxy s2 sgh-i777 running stock Android 4.1.2
ClockworkMod Recovery
Cook's pre-load ROM wipe
Shift Kernel (use the one for whichever Android version you're going to)
An AOSP sgh-i9100 galaxy s2 ROM

The Procedure (for booting TW ROMS):
Boot into clockworkmod recovery
Make a Nandroid backup
Flash Cook's safe pre-load ROM wipe .zip file
Flash ROM (I used WizzedKat ROM v3)
Flash jeeboo kernel
Reboot
Done! Enjoy Android 4.4.2 kit kat (if you flashed WizzedKat)

The Procedure (for booting AOSP ROMS):
Again, I HAVE NOT TESTED THIS!
Boot to clockworkmod recovery
Make a Nandroid backup
Flash Cook's pre-load ROM wipe .zip file
Flash ROM
Flash shift kernel
Reboot and pray your phone boots up because...surprise! I haven't tested this so I am not sure if it works or not.

How to Get Back to Stock:
So you've booted a ROM, played with it, and now you want to go back to stock ROM...no problem! Here's how:

Boot into clockworkmod recovery
Flash Cook's safe pre-load ROM wipe if coming from TW. Flash Cook's pre-load ROM wipe if coming from AOSP
Restore your Nandroid backup (if you made one)
*OPTIONAL* Flash jeeboo kernel or AJ kernel (both work with the stock ROM on the i777)
Reboot

Known Bugs

After rebooting back to stock, your baseband version might still say whatever it was while you were on the ROM you just were on and your phone may act funny when trying to make a call.

To fix this you will need to flash the stock MD8 Odin .tar file in mobile odin OVER your Nandroid backup you just restored. You can probably use Odin for the PC as well. This should NOT affect anything as far as apps and personal data goes, however you will have to reroot using the framaroot app and reflash clockworkmod recovery as well.

Happy flashing!

I'm lost. Are there any i900 roms able to flash to a sigh 777?

 

[StoneyJSG]

I'm lost. Are there any i900 roms able to flash to a sigh 777?

Yes, any i9100 touch wiz based ROM will work using the method above. I booted wizzedKat rom just fine. As for AOSP based roms, they should work but I haven't tried it so boot them at your own risk.

 

[Tmobilefan906]

Yes, any i9100 touch wiz based ROM will work using the method above. I booted wizzedKat rom just fine. As for AOSP based roms, they should work but I haven't tried it so boot them at your own risk.

I have an issue. Idk of its battery or something else. I get a quick glance of charge icon and it goes out. I tried plugging in device without a battery, and the soft keys and screen flickers. Any thoughts?

 

[Tmobilefan906]

Yes, any i9100 touch wiz based ROM will work using the method above. I booted wizzedKat rom just fine. As for AOSP based roms, they should work but I haven't tried it so boot them at your own risk.

I got Wizzedkat to work.

---------- Post added at 04:27 PM ---------- Previous post was at 04:26 PM ----------

I have an issue. Idk of its battery or something else. I get a quick glance of charge icon and it goes out. I tried plugging in device without a battery, and the soft keys and screen flickers. Any thoughts?

But I came from gingerbread and not 4.1.2

 

[StoneyJSG]

I got Wizzedkat to work.

---------- Post added at 04:27 PM ---------- Previous post was at 04:26 PM ----------


But I came from gingerbread and not 4.1.2

That is odd, the battery thing didn't happen to me, of course I came from Android 4.1.2 and that might be it. Restore your nandroid back up and then take the OTA to 4.1.2 jelly bean on the MD8 bootloader. You might also have to flash the 4.1.2 ODIN tar file if your phone acts funny after taking the OTA or restoring the nandroid, which may or may not wipe all your data, it didn't wipe mine and I used the mobile odin app. Do not take the OTA to 4.1.2 on the MD9 bootloader, if you do then i9100 roms may not work as I haven't tested it on that bootloader. Once you are on 4.1.2 , follow my guide above again to boot wizzed kat or any other i9100 touch whiz rom. It should fully work then, if it doesn't then I'm at a stalemate.

 

[Tmobilefan906]

That is odd, the battery thing didn't happen to me, of course I came from Android 4.1.2 and that might be it. Restore your nandroid back up and then take the OTA to 4.1.2 jelly bean on the MD8 bootloader. You might also have to flash the 4.1.2 ODIN tar file if your phone acts funny after taking the OTA or restoring the nandroid, which may or may not wipe all your data, it didn't wipe mine and I used the mobile odin app. Do not take the OTA to 4.1.2 on the MD9 bootloader, if you do then i9100 roms may not work as I haven't tested it on that bootloader. Once you are on 4.1.2 , follow my guide above again to boot wizzed kat or any other i9100 touch whiz rom. It should fully work then, if it doesn't then I'm at a stalemate.

I put the metal ends of battery on my enclosed note 3 charger for a couple secs. Gave it a lil boost. I flashed GB firmware to it, then rooted it via max Lee's method. Now running wickedkatt rom!

 

[Tmobilefan906]

That is odd, the battery thing didn't happen to me, of course I came from Android 4.1.2 and that might be it. Restore your nandroid back up and then take the OTA to 4.1.2 jelly bean on the MD8 bootloader. You might also have to flash the 4.1.2 ODIN tar file if your phone acts funny after taking the OTA or restoring the nandroid, which may or may not wipe all your data, it didn't wipe mine and I used the mobile odin app. Do not take the OTA to 4.1.2 on the MD9 bootloader, if you do then i9100 roms may not work as I haven't tested it on that bootloader. Once you are on 4.1.2 , follow my guide above again to boot wizzed kat or any other i9100 touch whiz rom. It should fully work then, if it doesn't then I'm at a stalemate.

The battery was "dead" lol. It's gonna need a new one eventually.

 

[Tmobilefan906]

That is odd, the battery thing didn't happen to me, of course I came from Android 4.1.2 and that might be it. Restore your nandroid back up and then take the OTA to 4.1.2 jelly bean on the MD8 bootloader. You might also have to flash the 4.1.2 ODIN tar file if your phone acts funny after taking the OTA or restoring the nandroid, which may or may not wipe all your data, it didn't wipe mine and I used the mobile odin app. Do not take the OTA to 4.1.2 on the MD9 bootloader, if you do then i9100 roms may not work as I haven't tested it on that bootloader. Once you are on 4.1.2 , follow my guide above again to boot wizzed kat or any other i9100 touch whiz rom. It should fully work then, if it doesn't then I'm at a stalemate.

When I go to make back up, just the icon of top hat stays on. If I tap power button, it goes back to main menu. Any ideas? It's cwm 5.0.4

 

[Tmobilefan906]

That is odd, the battery thing didn't happen to me, of course I came from Android 4.1.2 and that might be it. Restore your nandroid back up and then take the OTA to 4.1.2 jelly bean on the MD8 bootloader. You might also have to flash the 4.1.2 ODIN tar file if your phone acts funny after taking the OTA or restoring the nandroid, which may or may not wipe all your data, it didn't wipe mine and I used the mobile odin app. Do not take the OTA to 4.1.2 on the MD9 bootloader, if you do then i9100 roms may not work as I haven't tested it on that bootloader. Once you are on 4.1.2 , follow my guide above again to boot wizzed kat or any other i9100 touch whiz rom. It should fully work then, if it doesn't then I'm at a stalemate.

How can I update my recovery? I know that with this device, kernels come with recovery. Which do u recommend? I love twrp, but will use cwm if that is all that is available.

---------- Post added at 11:18 PM ---------- Previous post was at 10:52 PM ----------

That is odd, the battery thing didn't happen to me, of course I came from Android 4.1.2 and that might be it. Restore your nandroid back up and then take the OTA to 4.1.2 jelly bean on the MD8 bootloader. You might also have to flash the 4.1.2 ODIN tar file if your phone acts funny after taking the OTA or restoring the nandroid, which may or may not wipe all your data, it didn't wipe mine and I used the mobile odin app. Do not take the OTA to 4.1.2 on the MD9 bootloader, if you do then i9100 roms may not work as I haven't tested it on that bootloader. Once you are on 4.1.2 , follow my guide above again to boot wizzed kat or any other i9100 touch whiz rom. It should fully work then, if it doesn't then I'm at a stalemate.

Also, when I open Stweaks it says no kernel support. Odd...it should...jeebo kernel was flashed.

 

[Tmobilefan906]

Are u gonna maintain this thread or not?

 

[StoneyJSG]

How can I update my recovery? I know that with this device, kernels come with recovery. Which do u recommend? I love twrp, but will use cwm if that is all that is available.

---------- Post added at 11:18 PM ---------- Previous post was at 10:52 PM ----------


Also, when I open Stweaks it says no kernel support. Odd...it should...jeebo kernel was flashed.

I flash jeebo kernel and AJ kernel back and forth with my s2 on Android 4.1.2 which both have CWM recovery. Stweaks may not work with jeebo kernel, it might work wth shift kernel, but I am not sure shift kernel works with wizzed kat rom. I do know stweaks works with AJ kernel on 4.1.2 and siyah kernel if you're on Android 4.0.x

 

[StoneyJSG]

When I go to make back up, just the icon of top hat stays on. If I tap power button, it goes back to main menu. Any ideas? It's cwm 5.0.4

I'm not sure what's causing this. Try going to google play and getting the flashify and nandroid manager apps. These will let you back up and manage your backups from Android without having to boot to recovery.

 

[Tmobilefan906]

I flash jeebo kernel and AJ kernel back and forth with my s2 on Android 4.1.2 which both have CWM recovery. Stweaks may not work with jeebo kernel, it might work wth shift kernel, but I am not sure shift kernel works with wizzed kat rom. I do know stweaks works with AJ kernel on 4.1.2 and siyah kernel if you're on Android 4.0.x

Now, when u say on a certain android version, do u mean the phones bootloader or the actual roms android version?

---------- Post added at 11:32 PM ---------- Previous post was at 11:31 PM ----------

I'm not sure what's causing this. Try going to google play and getting the flashify and nandroid manager apps. These will let you back up and manage your backups from Android without having to boot to recovery.

I went ahead and installed an SD card. Now it will back up.

 

[Tmobilefan906]

I'm not sure what's causing this. Try going to google play and getting the flashify and nandroid manager apps. These will let you back up and manage your backups from Android without having to boot to recovery.

?android version of rom, or device's bootloader version?

 

[StoneyJSG]

Now, when u say on a certain android version, do u mean the phones bootloader or the actual roms android version?

---------- Post added at 11:32 PM ---------- Previous post was at 11:31 PM ----------


I went ahead and installed an SD card. Now it will back up.

Actual ROM version. Ah yes putting in an SD card would be the fix. Thought you had one already. Looks like you're good to go now.

 

[Tmobilefan906]

Actual ROM version. Ah yes putting in an SD card would be the fix. Thought you had one already. Looks like you're good to go now.

U familiar with partitioning? I have a i777 with a gt9100 rom.

 

[StoneyJSG]

U familiar with partitioning? I have a i777 with a gt9100 rom.

No I have never ventured down that avenue before, been meaning to. There's a thread on it though here somewhere in the i777 forum.

 

[Tmobilefan906]

No I have never ventured down that avenue before, been meaning to. There's a thread on it though here somewhere in the i777 forum.

I tried it with Wizzedkat rom, stock rom and it doesn't work. I know that when u flash a recovery a kernel comes with it. I flash twrp or cwm, and my device doesn't boot back up. I'm so frustrated!ugh.

 

[StoneyJSG]

I tried it with Wizzedkat rom, stock rom and it doesn't work. I know that when u flash a recovery a kernel comes with it. I flash twrp or cwm, and my device doesn't boot back up. I'm so frustrated!ugh.

Hmm odd. Can you get into download mode? You might can use ODIN to flash the Android 4.1.2 stock MD8 firmware tar file which will flash over anything you currently have.