[Q] Phone reboot and enter in recovery mode

[gsilva92]

I I rooted my S2 I777 using Frameroot-1.4.2 and flashed via Odin CWM 5.0.2.3 then I flashed AoCP KitKat from from GalaxyS2Root.com and now my phone is in a loop entering in recovery mode.
I flashed the rom on CWM and when I asked to reboot the system it start reboot and enter in recovery mode again.

I tried to flash the official rom from AT&T with Android 2.3.4 and even after I flash this rom it doesn't stop to enter in recovery mode.

 

[creepyncrawly]

First thing to do: perform a wipe/data from within recovery.

 

[gsilva92]

First thing to do: perform a wipe/data from within recovery.

It was done and still reboot in recovery.

I tried to install a stock rom via Odin 1,85 but I failed in all the tries then I tried via Odin 3.07 and it worked and I did a full wipe and rebooted the system and it got back to recovery mode then I did it again and it worked.
Now I'm using a stock Rom with Androind 4.2.1.

Before it works I've tried to install the stock Rom and it worked then I rooted the phone and installed CWM and it always reboot in recovery mode.

 

[SteveMurphy]

...then I rooted the phone and installed CWM and it always reboot in recovery mode.

This part makes me think you use Rom Manager, and that would explain why it keeps rebooting. There's no need to install CWM separately as it's included in i777 kernels. Rom Manager will ruin your phone, stay away from it (see the sticky).

 

[gsilva92]

This part makes me think you use Rom Manager, and that would explain why it keeps rebooting. There's no need to install CWM separately as it's included in i777 kernels. Rom Manager will ruin your phone, stay away from it (see the sticky).

I don't use Rom Manager.
It was rooted before and I was using a KitKat Rom but I tried to flash the Rom I mentioned and it bricked.
I unbricked it and rooted and installed CWM then it started with the problem.
As I said now I'm using a stock Rom with Android 4.2.1.

You said CWM is included in i777 Kernels so if I root my phone I can simply get in recovery mode and use the stock recovery to flash the Rom?

 

[cyril279]

You mentioned that you rooted the stock firmware and installed a custom recovery, but without knowing your root - recovery process, it's hard to say where things went sideways.

The kernel of the i777 does include the recovery, but the stock kernel cannot be used to flash custom firmware.

>>this guide<< is one of the more reliable ways to go from stock to custom firmware.

summary;
-framaroot to establish root
-mobile odin to install custom kernel
-custom kernel to install custom firmware

happy flashing
-Cyril

I don't use Rom Manager.
It was rooted before and I was using a KitKat Rom but I tried to flash the Rom I mentioned and it bricked.
I unbricked it and rooted and installed CWM then it started with the problem.
As I said now I'm using a stock Rom with Android 4.2.1.

You said CWM is included in i777 Kernels so if I root my phone I can simply get in recovery mode and use the stock recovery to flash the Rom?

 

[gsilva92]

You mentioned that you rooted the stock firmware and installed a custom recovery, but without knowing your root - recovery process, it's hard to say where things went sideways.

The kernel of the i777 does include the recovery, but the stock kernel cannot be used to flash custom firmware.

>>this guide<< is one of the more reliable ways to go from stock to custom firmware.

summary;
-framaroot to establish root
-mobile odin to install custom kernel
-custom kernel to install custom firmware

happy flashing
-Cyril

Thank you.
I'll follow this guide and I'll post here if it worked for me.

 

[gsilva92]

You mentioned that you rooted the stock firmware and installed a custom recovery, but without knowing your root - recovery process, it's hard to say where things went sideways.

The kernel of the i777 does include the recovery, but the stock kernel cannot be used to flash custom firmware.

>>this guide<< is one of the more reliable ways to go from stock to custom firmware.

summary;
-framaroot to establish root
-mobile odin to install custom kernel
-custom kernel to install custom firmware

happy flashing
-Cyril

I tried to follow the instruction in the link you sent me but I failed doing it.

I searched on google and I saw that Odin has an option OTA / Update zip but mine doesn't have this option.
Is there something I should do before flash a custom rom?
I'm using Mobile Odin Pro.

 

[creepyncrawly]

I tried to follow the instruction in the link you sent me but I failed doing it.

I searched on google and I saw that Odin has an option OTA / Update zip but mine doesn't have this option.
Is there something I should do before flash a custom rom?
I'm using Mobile Odin Pro.

Agreed, the instructions in that guide can be a little confusing.

First, are you sure you are using the AT&T Galaxy S II SGH-I777? Because you said several times in this thread that you are now running 4.2.1, but there is no such version of the os for this phone. The latest official AT&T stock firmware is I777UCMD8 which is 4.1.2.

If you affirm that your phone is SGH-I777 running UCMD8 firmware, and that you have root, then the next step is to use mobile odin to flash AJK v4.9 NoSwap kernel. Download the zip file from the Kernel thread. Open the zip file with an archiving tool such as win-zip, 7zip, etc. and extract the boot.img. Mobile odin will not recognize the zip file, but it will recognize the boot.img as a kernel, and will flash that. So transfer the boot image to the phone sd card and flash with mobile odin.

Next, you will find that the phone buttons don't work. Transfer the AJK v4.9 zip file to the sd card, enter into Clockwork Mod recovery and flash the AJK v4.9 zip file. This will fix the buttons. Now you have a working stock UCMD8 with custom AJK kernel. Now you are ready to flash what ever firmware you want. Hope this helps, and feel free to ask questions.

 

[gsilva92]

Agreed, the instructions in that guide can be a little confusing.

First, are you sure you are using the AT&T Galaxy S II SGH-I777? Because you said several times in this thread that you are now running 4.2.1, but there is no such version of the os for this phone. The latest official AT&T stock firmware is I777UCMD8 which is 4.1.2.

If you affirm that your phone is SGH-I777 running UCMD8 firmware, and that you have root, then the next step is to use mobile odin to flash AJK v4.9 NoSwap kernel. Download the zip file from the Kernel thread. Open the zip file with an archiving tool such as win-zip, 7zip, etc. and extract the boot.img. Mobile odin will not recognize the zip file, but it will recognize the boot.img as a kernel, and will flash that. So transfer the boot image to the phone sd card and flash with mobile odin.

Next, you will find that the phone buttons don't work. Transfer the AJK v4.9 zip file to the sd card, enter into Clockwork Mod recovery and flash the AJK v4.9 zip file. This will fix the buttons. Now you have a working stock UCMD8 with custom AJK kernel. Now you are ready to flash what ever firmware you want. Hope this helps, and feel free to ask questions.

Thank you.
I'm gonna try it and I'll post at night (in Brazil) when I come back from work.

 

[gsilva92]

Agreed, the instructions in that guide can be a little confusing.

First, are you sure you are using the AT&T Galaxy S II SGH-I777? Because you said several times in this thread that you are now running 4.2.1, but there is no such version of the os for this phone. The latest official AT&T stock firmware is I777UCMD8 which is 4.1.2.

If you affirm that your phone is SGH-I777 running UCMD8 firmware, and that you have root, then the next step is to use mobile odin to flash AJK v4.9 NoSwap kernel. Download the zip file from the Kernel thread. Open the zip file with an archiving tool such as win-zip, 7zip, etc. and extract the boot.img. Mobile odin will not recognize the zip file, but it will recognize the boot.img as a kernel, and will flash that. So transfer the boot image to the phone sd card and flash with mobile odin.

Next, you will find that the phone buttons don't work. Transfer the AJK v4.9 zip file to the sd card, enter into Clockwork Mod recovery and flash the AJK v4.9 zip file. This will fix the buttons. Now you have a working stock UCMD8 with custom AJK kernel. Now you are ready to flash what ever firmware you want. Hope this helps, and feel free to ask questions.

I did exactly what you said and it worked but when I tried to flash a custom Rom it failed and bricked my phone again.
And now I'm back to the first topic, it always reboots in the recovery mode.
I'll try to fix it again.

I didn't see the error it showed me when failed in flash the custom rom. I know I should have seen it.

Here is a video of my phone rebooting in the recovery mode.

 

[creepyncrawly]

I did exactly what you said and it worked but when I tried to flash a custom Rom it failed and bricked my phone again.
And now I'm back to the first topic, it always reboots in the recovery mode.
I'll try to fix it again.

I didn't see the error it showed me when failed in flash the custom rom. I know I should have seen it.

Here is a video of my phone rebooting in the recovery mode.

What firmware did you try to flash? If you tried again to flash the "AoCP KitKat from GalaxyS2Root dot com" that you mentioned in your first post, that in itself could be the problem. In the past, many products from the GalaxyS2Root website have caused numerous and various types of problems, including similar to your issue. For most of the past two and a half years, we have been advising people to avoid the Galaxy S2 Root website and products. It is best to flash firmware downloaded from XDA-Developers.

If you are trying to install a version of kitkat on your phone, then you also probably need advice from someone more familiar with kitkat, like cyril279 or SteveMurphy. Maybe one of them will jump in and help.

 

[razen_kain]

I I rooted my S2 I777 using Frameroot-1.4.2 and flashed via Odin CWM 5.0.2.3 then I flashed AoCP KitKat from from GalaxyS2Root.com and now my phone is in a loop entering in recovery mode.
I flashed the rom on CWM and when I asked to reboot the system it start reboot and enter in recovery mode again.

I tried to flash the official rom from AT&T with Android 2.3.4 and even after I flash this rom it doesn't stop to enter in recovery mode.

Just breezed through this and didn't see this mentioned but in the aocp kitkat forum here it states in the op you must be on cwm 6.0.4.4 or higher to flash their ROM. This is true for all kitkat ROMs I've tried so far. This may have been the source of your problem although usually most report getting a status7 error at this point but I'm not familiar with that cwm version you mentioned.

Also twrp works really well and it's touch based.

 

[gsilva92]

What firmware did you try to flash? If you tried again to flash the "AoCP KitKat from GalaxyS2Root dot com" that you mentioned in your first post, that in itself could be the problem. In the past, many products from the GalaxyS2Root website have caused numerous and various types of problems, including similar to your issue. For most of the past two and a half years, we have been advising people to avoid the Galaxy S2 Root website and products. It is best to flash firmware downloaded from XDA-Developers.

If you are trying to install a version of kitkat on your phone, then you also probably need advice from someone more familiar with kitkat, like cyril279 or SteveMurphy. Maybe one of them will jump in and help.

I'm trying to flash a Rom form XDA-Developers http://forum.xda-developers.com/showthread.php?t=2544790
I'll try to contact one of the users you mentioned. Thank you.

Just breezed through this and didn't see this mentioned but in the aocp kitkat forum here it states in the op you must be on cwm 6.0.4.4 or higher to flash their ROM. This is true for all kitkat ROMs I've tried so far. This may have been the source of your problem although usually most report getting a status7 error at this point but I'm not familiar with that cwm version you mentioned.

Also twrp works really well and it's touch based.

I'll try to flash twrp to flash KitKat. Thank you.

 

[cyril279]

Good catch @razen_kain, the details were in the OP all along.

That said, The details of what you need to flash the firmware are in the OP of each Firmware thread, including the necessary kernel version, and where to find it.

Omni

[...]
Recovery requirement (prior to flashing this firmware):
================
CWM 6.0.4.4+
--OR--
TWRP 2.6.3.0+
-Renderbroken's OmniROM kernel
-or- Flash Omni's Boot.IMG via MobileOdin
--------------------------------
SGH-S959G; (courtesy of @mr-cook)
TWRP 2.6.3.0.zip
--OR--
CWM 6.0.4.5.zip.[...]

CM 11

[...]HOW TO INSTALL

Make sure you are on CWM 6.0.4.4+ before flashing ROM! Thanks to @mr-cook you can now download and flash just the recovery/kernel!
Other handy scripts you can use from mr-cook can be found: Here
Download 6.0.4.5 Recovery/Kernel created by mr-cook : Here[...]

AOCP 7.0

HOW TO INSTALL
***(If you are on Jellybean or older, you will need the latest CWM recovery for the i777 to flash this ROM)***
***If you are having trouble with flashing the zip, you can try the odin version from here***​

------------------------------------------------------------------------------------------------------

I I rooted my S2 I777 using Frameroot-1.4.2 and flashed via Odin CWM 5.0.2.3 then I flashed AoCP KitKat from from GalaxyS2Root.com and now my phone is in a loop entering in recovery mode.
I flashed the rom on CWM and when I asked to reboot the system it start reboot and enter in recovery mode again.

I tried to flash the official rom from AT&T with Android 2.3.4 and even after I flash this rom it doesn't stop to enter in recovery mode.

 

[creepyncrawly]

I'm trying to flash a Rom form XDA-Developers http://forum.xda-developers.com/showthread.php?t=2544790
I'll try to contact one of the users you mentioned. Thank you.

I'll try to flash twrp to flash KitKat. Thank you.

If you go back to AT&T stock 4.1.2 I777UCMD8 to start over, here are a couple of ways to get the kernel you need. Please bear in mind that the only kernel that will boot UCMD8 into system is the AJK v4.9 kernel that you used before. When you install another kernel such as RenderBroken's CWM or TWRP kenrel, or the one from OmniRom, the system will no longer boot, but you will be able to boot into recovery, so just avoid trying to boot the system, and choose the option to boot directly into recovery. Or... pull the battery and then use the button combo to enter recovery.

1) Extract the boot.img directly from the OmniRom zip file, and flash that using mobile odin. In this case, once you have UCMD8 rooted, you can skip the step of flashing AJK and flash the OmniRom kernel directly. Reboot into the new recovery and flash OmniRom.

2) Flash the AJK kernel as in my previous instructions. Then enter recovery and flash RenderBroken's kernel. Boot directly into recovery and flash OmniRom.

 

[gsilva92]

Good catch @razen_kain, the details were in the OP all along.

That said, The details of what you need to flash the firmware are in the OP of each Firmware thread, including the necessary kernel version, and where to find it.

Omni


CM 11


AOCP 7.0

------------------------------------------------------------------------------------------------------

I gotta say I didn't read the full info after flash the rom.

If you go back to AT&T stock 4.1.2 I777UCMD8 to start over, here are a couple of ways to get the kernel you need. Please bear in mind that the only kernel that will boot UCMD8 into system is the AJK v4.9 kernel that you used before. When you install another kernel such as RenderBroken's CWM or TWRP kenrel, or the one from OmniRom, the system will no longer boot, but you will be able to boot into recovery, so just avoid trying to boot the system, and choose the option to boot directly into recovery. Or... pull the battery and then use the button combo to enter recovery.

1) Extract the boot.img directly from the OmniRom zip file, and flash that using mobile odin. In this case, once you have UCMD8 rooted, you can skip the step of flashing AJK and flash the OmniRom kernel directly. Reboot into the new recovery and flash OmniRom.

2) Flash the AJK kernel as in my previous instructions. Then enter recovery and flash RenderBroken's kernel. Boot directly into recovery and flash OmniRom.

I did exactly what you said and it worked. Now I'm running OmniRom and I didn't have any problem during the process to flash and not even after.

Thank you everyone.
I'll be more careful next time.

 

[razen_kain]

I gotta say I didn't read the full info after flash the rom.



I did exactly what you said and it worked. Now I'm running OmniRom and I didn't have any problem during the process to flash and not even after.

Thank you everyone.
I'll be more careful next time.

Welcome to the club :thumbup:

 

[gsilva92]

Welcome to the club :thumbup:

Thank you.