Any reason to do this? Can this be done? Discuss.
The latest Bootloaders for the Captivate are the i897ucKK4 Bootloaders, because that is the latest leaked/official released firmware. --- and the last afiak.
What JB Bootloader are u talkin about flashin ??
I wouldn't recommend it and don't see the need for it...unless u just wanna hard brick ur phone.
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Hello everyone, I am on darkys 9.5 and I wanna go or flash stock rom of JVP 2.3.4 for the sole reason of being able to use video call for skype coz it doesn't support on darkys 9.5 which is froyo.. My concern is, is it ok to flash directly over darky 9.5 (lagfix off) the stock JVP stock rom? Or do I have to flash other version first like 2.3.3 before JVP? And if I am able to flash it with 2.3.4, how do I root it so that I can restore my apps? Your knowledge would be of help..
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You cam backup your apps with Titanium.
Flash like this:
- download XXJVQ with bootloader (you'll find it here on XDA)
- back up contacts, photos, etc.
- disable lagfix
- flash fw with Odin (inclusive PIT-file + Re-partition ticked
(- root with another kernel, enable lagfix) <--- this must not be done
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Ah this is the info I dont know yet, about this bootloader thingy.. So if I flash to another version like from froyo to gingerbread, I should flash with bootloader in odin? I downloaded the custom room on samfirmware.com the JVP version, does it include the bootloader on those files? And if I dont flash with bootloader, does it mean I can't update to gingerbread? They say flashing with bootloader is dangerous so I must be careful..
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If you change the Android-version (from Froyo to Ginger, from Ginger to Eclair,...) you always have tto flash a firmware including bootloaders. If you already have 2.3.3 and you want to uograde to 2.3.4, you already have the Gingerbreadbootloader so you could choose a firmware without bootloader too.
[SIZE="0.5"]And don't forget to press the 'Thanks'-button. [/SIZE]
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Thanks a lot lunchbox for the info..
That's the thing I need to know.. I know I can find somewhere here in xda the gingerbread bootloader.. Any other precautionary you can advise before I start? So I have to enter four files, the PDA, CSC, MODEM and BOOTLOADER on the odin to make it work?
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No, just enter CSC, PDA and Phone and - if you want to - the PIT-File (if you use a PIT-File don't forget to to tick 'Re-Partition' on the left side in Odin).
You just use the bootloader-field if you only flash the bootloader but nothing else, so just leave it blank for flashing Gingerbread.
And don't forget to press the 'Thanks'-button.
EDIT: here you can find XXJVQ (GB 2.3.4): http://forum.xda-developers.com/showthread.php?t=1011901
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After reading through forums that talks about bootloader, I finally understand the basics.. Just last few questions before I flash gingerbread.
I downloaded the custom rom in samfirmware which is the JVP and it has this files,
1. CODE_I9000XXJPV_CL264642_REV03_user_low_ship.tar.md5 283.5 mb
2. GT-I9000-CSC-MULTI-OXAJVP.tar.md5 86.9 mb
3. MODEM_I9000XXJVP_REV_00CL1019177.tar.md5 12.2 mb
4. 512 pit file
My 1st question, does this rom contain bootloader in the PDA? (Does samfirmare.com roms always have bootloader in their roms?)
Obviously, im new in xda, 3 days young so I didn't know how bountiful the roms to download here and my data plan is limited so I will just use this rom JVP to minimize my data consumption..
My 2nd question is, I read in a vibrant forum that they had a bootloader from I9000 that they can use in their vibrant phones which allows backward (they say you can change to froyo, eclair, gingerbread) can I use that bootloader coz I have I feeling that I'm going back to darky 9.5 and I won't have to flash a froyo bootloader if ever. I'm just updating to get a taste of video call of skype..
My 3rd question is, the risk in flashing roms without bootloader in it especially if you are from froyo and upgrade to gingerbread is, rainbow screen and no download mode, right? (that's why I wanna make sure the JVP I downloaded from samfirmware has gingerbread bootloader in it so I won't have these problems). That's why most roms here in xda has no built in bootloader coz its always risky to flash roms with bootloader so maybe the one I downloaded in samfirmware has bootloader?
My last question is, I read some1 got a problem with his gingerbread bootloader coz he flashed another gingerbread bootloader.. Does it mean that every room has a specific bootloader? Like JVP bootloader is different from JVQ bootloader?
I hope you weren't annoyed with these noob questions.. Hehehe just wanna be safe always that's why I need your opinion. Anyway, I'm learning with every answer you gave me..
Thanks lunchbox.. I'll inform you if I successfully flash it this weekend..
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This fw should contain the bootloader, yes. But I'm never quite sure. I think that firmwares with three parts contain it and with one part not. So you should wait until somebody confirms this.
But don't believe all the threads in the forum. Usually you will only read from bricked pbones and not from successfully ended flash procedures (nobidy will write "well, I just wanted you to inform that everything went fine". ).
Normally you need for a Ginger-based ROM Only Gingerbread as a base. So it doesn't care if you Have JVP, JVQ or JVH. Thung are different only on CM7 + MIUI, there you need Froyo-bootloader.
And if you follow the guudes step by step you won't brick your phone.
You are welcome.
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Assuming the JVP stock rom i downloaded has bootloader in it, do i need to check/tick "phone bootlaoder update" in Odin before starting the flash?
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I've successfully updated to JVP and I think the bootloader also and I'm using video call on skype now.. I think gingerbread is a nice rom though its to stock but maybe this can be modified I the future..
Thanks lunchbox for the assistance..
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My phone is currently at the repair center getting fixed ( or replaced ) due to a hardware issue with the micro USB port.
I managed to flash it back to stock JPY before it went completely dead...
When i get my phone back obviously im gonna have to upgrade to GB again.
Anyways... Does the JVR at the bottom of the page on samfirmware include bootloaders?
I think it will do but just wanted to check because obviously my phone will be coming back with froyo
Thanks
Yes....all roms come with bootloaders dude
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djice000 said:
Yes....all roms come with bootloaders dude
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Click to expand...
Click to collapse
Not true in the least....not all ROMs include bootloaders.
Go yo one of ramad's thread and download a deodexed version of the ROM you want. He usually has versions both with and without bootloaders, clearly marked.
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Hello all,
I am running now MIUI 1.9.2 Android version 2.3.5.
i want to install a custom kernel but forgot which bootloader i started from..
Froyo or Gingerbread? How can we know?
OR how can we get a gingerbread bootloader without wiping everything?
thx in advance!
You don't have to wipe anything.. just flash bootloader using Odin...you can download gingerbread bootloaders from here http://forum.xda-developers.com/showpost.php?p=16374373&postcount=70 ... having gingerbread bootloaders is better
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kamalmawa said:
You don't have to wipe anything.. just flash bootloader using Odin...you can download gingerbread bootloaders from here http://forum.xda-developers.com/showpost.php?p=16374373&postcount=70 ... having gingerbread bootloaders is better
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Click to expand...
Click to collapse
so just odin 1.7 bootloader flash and repartition off?
btw which kernel is better in your opinion?
Is there any way to check what bootloaders I am running? I did have the GB bootloaders installed when I ran Fusion, Fasty & J3 leak but I have Odin'd back to stock with the no bootloader version & Kies Mini upgraded me to Froyo. Does Kies flash the froyo bootloaders? Is there a way I can check using root explorer?
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If you flash a TB rom and it doesn't work. The only way to check.
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A side from trial and error of kernels and button cimbos you can't. Tho there might be some info in a UART readout. But getting it to even post UART is more then what most of us are willing to do.
leaked from my FUSED SGS I897 contaminating you via XDA app.
If I have an I9000 Gingerbread ROM installed, do I need to flash new bootloaders if I want to flash a Captivate ROM?
mfdemicco said:
If I have an I9000 Gingerbread ROM installed, do I need to flash new bootloaders if I want to flash a Captivate ROM?
Click to expand...
Click to collapse
No. I've stayed on i9000 GB bootloaders and flashed Captivate ROMs; they work fine.
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Normally no, gb bootloaders are compatible with each other, only the stock music player is known to misbehave. Some devs will advise you to use specific bootloaders, but in the end it's ur call. I'd say pick ur poison and stick with it, avoid flashing bootloader as much as u can, as it's THE part in the flashing process where your phone can be hard bricked.
Just flashed a GB stock rom w/ no BL's & it works. Looks like Mini Kies leaves the BLs alone when being upgraded from Eclair.
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mcala said:
Just flashed a GB stock rom w/ no BL's & it works. Looks like Mini Kies leaves the BLs alone when being upgraded from Eclair.
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Click to expand...
Click to collapse
Are you on Rogers? if so then Kies did update the BL's, if it didnt and you try running a true GB ROM then you wouldnt be able to boot, it would have a bunch of weird colors on your screen when you tried to boot up...
I am on AT&T. Read my first post. I ran custom roms then I went back to stock then upgraded to Froyo thru Mini Kies. My question was to find a way to see what BLs I had after a Kies update. It seems not to touch them on AT&T until GB is official because I just tested another GB rom & it works.
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Hi,i'm a noob and i don't understand this thing about bootloaders. I have successfully flashed to CM9 (9.1.0 captivatemtd), now i feel like updating to [ROM/MOD] 4.1.1~Jellybean~AoCP CP3~The Collective, but it says it needs Gingerbread bootloaders? prior to flashing to cm9 i had the rogers gingerbread update for my captivate. At the moment i have CM9 (9.1.0) with devil kernel, so how do i get a gingerbread bootloader?or do i already have it?
U have the i896 GB Bootloaders now, since u were updated to Rogers GB firmware before. So u should be good to go.
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4-2ndtwin said:
U have the i896 GB Bootloaders now, since u were updated to Rogers GB firmware before. So u should be good to go.
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Click to expand...
Click to collapse
but since i changed the kernel and i flashed the cm9 9.1.0 rom (i followed the how to flash any rom including ics tutorial btw), wouldn't have my bootloaders have changed?
Not unless u specifically flashed the i897 gb bootloaders in that guide.
And not unless u went and flashed a stock firmware that contains bootloaders.
Bootloaders are not contained in kernels...Or Dev Roms. Just in Stock firmware (unless it states no bootloaders).
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i had at one point odin superclicked to stock gingerbread with at&t bootloader and then after with this info
"2.3.3 STOCK! from rogers no changes. DO NOT USE .PIT FILE WITH THIS STOCK! if you need to repartition use 2.2 with pit file then upgrade to 2.3.3 with NO PIT FILE!!!
ALSO, IT CONTAINS BOOTLOADERS!! necessary to upgrade to gingerbread!
this is THE FILE keis used.
The rom below will NOT fix an ATT bootscreen issue, rogers did not change their params.lfs partition so it is not in the rogers keis update. To FIX ATT Bootscreen flash THIS FILE in odin PDA box before or after 2.3.3 stock"
it was a one-click odin again, then from this i went to ics... so am i still ok or should i do something else to make sure?
U r good to go. U have the i896 GB Bootloaders. U can proceed. :thumbup:
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could you just explain how i could get other bootloaders and what the point is in changing bootloaders?
To run a Gingerbread firmware u need the GB Bootloaders (as opposed to eclair/froyo boots). And gb bootloaders are backwards compatible...u can run froyo or eclair firmware with them. Also once u have them u don't need to worry about flashing any bootloaders again because of the reasons just stated. And as well Roms such as ICS, JB, CM, etc. may require u to have the gb boots as part of their installation requirements.
If u want the i897 GB Bootloaders, see TRusselo's Guide that is a stickied thread in the q & a forum. He has a link in the OP.
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