[Q] Bootloaders

[southernblonde]

I feel like an idiot after reading this forum for the last couple of weeks. My problem started when I really wanted Jelly Bean on my i897 instead of the stock Gingerbread. I found out I failed to install Cyanogenmod and ended up with a phone that could no longer go into download mode, couldn't get into recovery, my laptop no longer recognized the phone and when I powered up the phone it was bootlooping on the AT&T screen.

I ended up buying a jig. It came in the mail today and I got into download mode and using Heimdall flashed I897UCKK4 Stock, NO Bootloaders, Wipe-One-Click.

I wanted to root my phone so I flashed Corn Kernel. My phone didn't go into download mode (it showed the battery charging when I tried) so I had to use the jig to get into into download mode. When I tried to get into recovery, it bootlooped on the AT&T screen. And I noticed during a normal power up of my phone, right after the AT&T screen, I see rainbow colored lines.

I asked someone who has been nice to enough to help me these last couple weeks and he said that the garbled lines mean I'm trying to use a gingerbread kernel and I don't have gingerbread bootloaders. Would the easy way to fix this is to use the same Heimdall One Click I used flashing the same stock and CHECK flash bootloaders this time?

Thanks for your help in advance!

 

[4-2ndtwin]

No...u need the one with bootloaders option included...because if the one u have is the one i packaged then the bootloaders are not even included in that package, so even if u chose the bootloader option it would not work.

And if i remember correctly, even with the Heimdall One Click that has the option to install bootloaders etc., it will require two flashes to get the bootloaders. The first flash installs the firmware and then the second installs firmware with the bootloaders. That is just the way it is with heimdall. Just follow the promps and u should be good.

There r other ways of gettin the i897 gb bootloaders of course. The Odin kk4 one click that contains them that i put together in that same one click stickied thread in the dev forum. Also TRusselo has a download of them alone in his Guide that is a stickied thread in the q & a forum. See his op for them.
And etc. etc. :thumbup:

Sent from my SAMSUNG-SGH-I777 using xda premium

 

[southernblonde]

No...u need the one with bootloaders option included...because if the one u have is the one i packaged then the bootloaders are not even included in that package, so even if u chose the bootloader option it would not work.

And if i remember correctly, even with the Heimdall One Click that has the option to install bootloaders etc., it will require two flashes to get the bootloaders. The first flash installs the firmware and then the second installs firmware with the bootloaders. That is just the way it is with heimdall. Just follow the promps and u should be good.

Sent from my SAMSUNG-SGH-I777 using xda premium

Will that solve my problem of not being able to get into download mode or recovery, by adding the bootloaders this time? I don't want to brick my phone, although I've been reading that its nearly impossible to brick. ha

Thank you.

 

[4-2ndtwin]

Yes the i897 gb bootloaders have solved users problems with button combos to get in download and recovery mode.

But always be careful flashin bls. Mixed matched bls or bad flash of them...loosin power to ur pc during the flash of them or loosin connection of ur usb/micro usb cord during the flash will possibly hard brick ur phone.
So just be sure to have a constant power source, reliable usb/micro usb cable, and don't interupt the flash during the few seconds it takes to install the boot.bin and sbl.bin files. And once u have installed the gb bootloaders there is absolutely no need to flash bls again. If u ever need to flash back to stock just use kk4 with No bls.

Keep us posted on how it goes...

Sent from my SAMSUNG-SGH-I777 using xda premium

 

[southernblonde]

Yes the i897 gb bootloaders have solved users problems with button combos to get in download and recovery mode.

But always be careful flashin bls. Mixed matched bls or bad flash of them...loosin power to ur pc during the flash of them or loosin connection of ur usb/micro usb cord during the flash will possibly hard brick ur phone.
So just be sure to have a constant power source, reliable usb/micro usb cable, and don't interupt the flash during the few seconds it takes to install the boot.bin and sbl.bin files. And once u have installed the gb bootloaders there is absolutely no need to flash bls again. If u ever need to flash back to stock just use kk4 with No bls.

Keep us posted on how it goes...

Sent from my SAMSUNG-SGH-I777 using xda premium

I downloaded the Heimdall package WITH the bootloaders this time and my phone is having the same problems. I watched it flash twice but I didn't notice Heimdall installing anything different the second time. Was I supposed to check "flash bootloaders" at any time?

 

[4-2ndtwin]

Yep. That gives permission for the install of the bootloaders. Check it before u begin the flash.

Sent from my SAMSUNG-SGH-I777 using xda premium

 

[m1batt1]

My personal preference is to do an odin flash of just the bootloader package from here http://forum.xda-developers.com/showthread.php?t=1350266 ... I bought my wife a cappy about a month ago and was trying to do a one-click to kk4 w/bl and it kept hanging. After a lot of fighting with it I ended up just flashing to bootloader package and then a custom kernel and all was good.

 

[4-2ndtwin]

Yep. Some of the Captivates do not like one click packages. Mine is a 1009 build and thankfully has not had a problem with 'em.

Sent from my SAMSUNG-SGH-I777 using xda premium

 

[southernblonde]

Yep. That gives permission for the install of the bootloaders. Check it before u begin the flash.

Sent from my SAMSUNG-SGH-I777 using xda premium

FIXED! Thank you so much. No more rainbow pixels, I can get into download mode and recovery now.
I was following the instructions word by word cuz I didn't want to screw anything up and it didn't say to check the box. I'm ignorant.

Thanks again!

 

[4-2ndtwin]

^ :thumbup:

Glad u got it. Now off u go to get ya some jellybeans.


Sent from my SAMSUNG-SGH-I777 using xda premium

 

[m1batt1]

^ :thumbup:

Glad u got it. Now off u go to get ya some jellybeans.


Sent from my SAMSUNG-SGH-I777 using xda premium

WOOOO JellyBeans!!!

 

[southernblonde]

^ :thumbup:

Glad u got it. Now off u go to get ya some jellybeans.


Sent from my SAMSUNG-SGH-I777 using xda premium

Ha! Watch me screw it all up again. But its all good cuz I've got a jig now, I feel a lot safer.

I think my lack of knowledge regarding Odin and Heimdall on the same computer probably had something to do with my loss of the laptop being able to recognize my phone. I learned that I need to stay away from Odin, it never worked right for me.

 

[4-2ndtwin]

Haha...u ought to be fine. Just remember, no need to flash bootloaders again. And the only other possible thing to be concerned about is the "Encryption Unsuccessful" error that has happened with users of this phone and several other phone models. There are two threads in the development forum if u wanna know more about that subject. Other than that the Captivate is a really tough phone. I have enjoyed mine for over 2 yrs now.

Sent from my SAMSUNG-SGH-I777 using xda premium

 

[m1batt1]

Ha! Watch me screw it all up again. But its all good cuz I've got a jig now, I feel a lot safer.

I think my lack of knowledge regarding Odin and Heimdall on the same computer probably had something to do with my loss of the laptop being able to recognize my phone. I learned that I need to stay away from Odin, it never worked right for me.

One thing I will mention is this... Coming from any other version to Jellybean, when you do the initial flash of the ROM it will either reboot automatically or show that the flash completed really quickly and then you'll reboot thinking you're installed. Either scenario will likely land you in a boot loop. Don't freak out because this is normal when you are first flashing to Jellybean. Its because of the partition layout differences and it just requires a reboot. Just get yourself back into recovery and flash everything again and all should be good.

 

[southernblonde]

One thing I will mention is this... Coming from any other version to Jellybean, when you do the initial flash of the ROM it will either reboot automatically or show that the flash completed really quickly and then you'll reboot thinking you're installed. Either scenario will likely land you in a boot loop. Don't freak out because this is normal when you are first flashing to Jellybean. Its because of the partition layout differences and it just requires a reboot. Just get yourself back into recovery and flash everything again and all should be good.

Is Cyanogenmod supposed to be installed before I flash Jelly Bean? I'm going to be using Slim Bean. Thank you!

 

[BWolf56]

Is Cyanogenmod supposed to be installed before I flash Jelly Bean? I'm going to be using Slim Bean. Thank you!

No, just flash Slim Bean twice. Flash the first time, get back in recovery and reflash Slim Bean right over it.

 

[southernblonde]

No, just flash Slim Bean twice. Flash the first time, get back in recovery and reflash Slim Bean right over it.

The first time I attempted to flash it, when it rebooted, it was stuck on the AT&T screen forever. I didn't know whether or not it had froze or not so I took the battery out, powered it up, and then it started bootlooping between the AT&T and Semaphore screens.

I should have put it back into download mode again and reflashed it?

 

[BWolf56]

The first time I attempted to flash it, when it rebooted, it was stuck on the AT&T screen forever. I didn't know whether or not it had froze or not so I took the battery out, powered it up, and then it started bootlooping between the AT&T and Semaphore screens.

I should have put it back into download mode again and reflashed it?

No, you go back in recovery and reflash it. The first time, it needs to rewrite the partition so it won't fully flash. After the first flash is over, you get back in recovery and flash right over it (what we call a dirty flash). Then it should boot up just fine!

 

[southernblonde]

No, you go back in recovery and reflash it. The first time, it needs to rewrite the partition so it won't fully flash. After the first flash is over, you get back in recovery and flash right over it (what we call a dirty flash). Then it should boot up just fine!

You guys are so smart, its sick :laugh:

I was just reading over Slim Bean installation and it says I need to boot up with CM9 or CM10. Is it still necessary to install it? Since I'm coming from Gingerbread. Here's where I read it at: http://www.slimroms.net/index.php/installation

 

[BWolf56]

You guys are so smart, its sick :laugh:

I was just reading over Slim Bean installation and it says I need to boot up with CM9 or CM10. Is it still necessary to install it? Since I'm coming from Gingerbread. Here's where I read it at: http://www.slimroms.net/index.php/installation

Can't see that page as I'm at work (yay for Gov's internet..)

As long as you have the GB bootloaders, you don't have to worry about much. Just make sure you have a cwm recovery (often gotten from flashing Corn kernel with Odin 1.85). But if you are already on a custom GB ROM, you don't have to worry about that.

Next is to factory reset, clear cache and dalvik in recovery and flash Slim Bean (Twice*) and finally the Gapps.

The process is the same for pretty much any JB ROM.


I'm a bit confused though, did you already flash it or not?