I'm currently on Android 4.1.2 using Baked 6 and I want to upgrade to Baked 8, or anything on 4.2 for that matter. If I update a ROM, does this also mean it updates my bootloader? If not how to I properly update my bootloader without bricking my tablet? I've been reading around but there's so much data on the forums that I feel like I'm going to accidentally make a mistake
lifewater said:
I'm currently on Android 4.1.2 using Baked 6 and I want to upgrade to Baked 8, or anything on 4.2 for that matter. If I update a ROM, does this also mean it updates my bootloader? If not how to I properly update my bootloader without bricking my tablet? I've been reading around but there's so much data on the forums that I feel like I'm going to accidentally make a mistake
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No flashing a custom rom will not upgrade your bootloader, only the stock asus firmwares will do this or a custom made blob file.
There are several methods to upgrade your bootloader to a JB 4.2 bootloader which can be found here or here. I prefer using the fastboot method for upgrading but up to you. Just make sure that once you've upgraded your bootloader to a 4.2 bootloader that you flash a -4.2 version of twrp or you will brick. I would suggest upgrading to JB 4.2 - 10.6.1.15.3 & twrp 2.5.0.0-4.2 as I find this more stable than 10.6.1.8 & twrp 2.4.4.0-4.2
If using the fastboot method and you need any help with any step just let me know.
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I have rooted my TF700, but have not unlocked the bootloader yet. I had to downgrade from JB to ICS so i am on the .30 firmware. Should I manually update the firmware to a JB firmware even though I am running ICS? Is there an adavatage, or will the firmware actually install JB back on? Also, when I load a custom ROM, should I also load an updated firmware?
The_Big_H said:
I have rooted my TF700, but have not unlocked the bootloader yet. I had to downgrade from JB to ICS so i am on the .30 firmware. Should I manually update the firmware to a JB firmware even though I am running ICS? Is there an adavatage, or will the firmware actually install JB back on? Also, when I load a custom ROM, should I also load an updated firmware?
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What do you mean.
What would you like to do? Get back on JB (rooted, and locked bootloader) or do you want to flash custom roms, which require an unlocked bootloader?
I guess what I'm asking is, when I run a custom ROM, should I flash an updated firmware?
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
The_Big_H said:
I guess what I'm asking is, when I run a custom ROM, should I flash an updated firmware?
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
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That depends. I am not that familiar with downgrading, so if you could turn off your tablet.
Then press the power button while holding the volume down button.
Then you should see 'bootloader version' somewhere on the left top corner.
If you could note that down and let me know, that'd help a lot.
It could be possible that your bootloader is still the one from before downgrading. If it is, you can start flashing roms as soon as you have unlocked your bootloader.
If it has downgraded too, you have to
1) Install Voodoo ota rootkeeper & make it protect your root
2) Flash the official latest firmware version
3) open voodoo ota rootkeeper and restore your root.
I think there's a walkthrough for your case somewhere in the general thread. Look for 'walkthrough' there, you should be able to find it.
The_Big_H said:
I guess what I'm asking is, when I run a custom ROM, should I flash an updated firmware?
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
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Depend on the rom build. If the rom build on JB, then yes, you need to flash JB bootloader if you're on ICS. Custom rom only contained rom and kernel.(sometime without the kernel so you need to read the instruction). So if you're on ICS you need to flash JB bootloader (either just flash the bootloader alone or flash the entire firmware which included the boot loader). Then you can flash JB custom rom. If you're talking about the new CleanRom, it's on JB (so you need JB bootloader) and has option to flash stock JB kernel or custom kernel. For me, I always flash the full Asus stock firmware first to make sure I have everything then I flash custom rom. Of course, you could just flash the stand alone JB bootloader then flash Cleanrom.
Now that the CM10.1 nightlies have been released for my TF300T, I want to update (I've been running CM10, and just now have gotten around to trying to update to 10.1), but according to this thread I need to have my bootloader updated to JB (10.4+). I tried using CM's auto-update but it didn't work and sent me into a bootloop and I had to reboot into recovery and flash my previous ROM again. I take this to mean that I have the incorrect bootloader, so:
How do I check what version my bootloader is?
How can I update my bootloader to the proper version?
I've read that flashing firmware from ASUS will automatically update the bootloader, but then I'd lose root and have to flash a custom recovery again, which I'd like to avoid doing. Maybe I'm overlooking something extremely simple here, and for that I apologize but if anyone could help me I would greatly appreciate it. :laugh:
Sorry if this question has already been addressed. I updated to stock 4.2 Asus firmware. I'm able to run stock-based ROMs, but I want to run Paranoid Android. Atm, I can't run it cause of the 4.2 bootloader. Is there some way to downgrade from 4.2 bootloader to 4.1? Would it do to unzip the 4.1 firmware from asus once, and flash that?
Thanks in advance
Edit: I was able to successfully downgrade from 4.2 to 4.1 by unzipping the asus firmware once and flashing it normally in twrp. That got the 4.1 bootloader back too. I have flashed PA 3.15, and it's worked fine
http://forum.xda-developers.com/showthread.php?t=2195883
http://forum.xda-developers.com/showthread.php?t=2187982
That's pretty much what i ended up doing Thanks for the quick reply
How do I identify what version of Bootloader I am running. I am rooted and unlocked and have TWRP installed and also running the Hydro7 ROM. Looking at other ROMS I need to have the JB Bootloader installed. How do I check this?
Thanks in advance.
citronax said:
How do I identify what version of Bootloader I am running. I am rooted and unlocked and have TWRP installed and also running the Hydro7 ROM. Looking at other ROMS I need to have the JB Bootloader installed. How do I check this?
Thanks in advance.
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Click to collapse
You can check your bootloader version in the bootloader menu/screen.
Hold vol- & power to boot to bootloader and the text in the top left of the screen will show your bootloader version.
Hydro 7 requires a JB 4.1 bootloader and is based off JB 4.1 - 10.4.2.20 - so if running Hydro 7 you are currently on a JB 4.1 bootloader.
Alot of customs roms are now based on a JB 4.2 bootloader, so if wanting to flash a rom that requires a JB 4.2 bootloader you will need to upgrade your bootloader first.
If upgrading to JB 4.2 bootloader please ensure the you flash the correct recovery, only the -4.2 versions of twrp are compatibly with the 4.2 bootloaders. Flashing a non-4.2 version of twrp or cwm will brick your device. Have a look at my how-to is sig below for more info.
If you need any help in doing this or more info just let me know.
Hi pjc21, thanks for the reply that clears up my bootloader question and your follow on information. I can now confirm that I am running bootloader "10.4.2.20" and TWRP "2.4.3.0".
So just to confirm after reading your instructions about upgrading my bootloader to "JB4.2" all I need to do is to follow your instructions and flash firmware "V10.6.1.15.3 Only for TW SKU (Android 4.2) 2013.04.23 Update" and TWRP "openrecovery-twrp-2.5.0.0-tf300t-4.2.blob".
Is this correct?
As ever your help is greatly appreciated.
citronax said:
Hi pjc21, thanks for the reply that clears up my bootloader question and your follow on information. I can now confirm that I am running bootloader "10.4.2.20" and TWRP "2.4.3.0".
So just to confirm after reading your instructions about upgrading my bootloader to "JB4.2" all I need to do is to follow your instructions and flash firmware "V10.6.1.15.3 Only for TW SKU (Android 4.2) 2013.04.23 Update" and TWRP "openrecovery-twrp-2.5.0.0-tf300t-4.2.blob".
Is this correct?
As ever your help is greatly appreciated.
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Yes that's correct :good:
If you need any help with any steps just let me know
I currently have a TWRP v2.6.3.0 on my TF300TL, Android 4.2.1 How should I proceed?
pjc21 said:
You can check your bootloader version in the bootloader menu/screen.
Hold vol- & power to boot to bootloader and the text in the top left of the screen will show your bootloader version.
Hydro 7 requires a JB 4.1 bootloader and is based off JB 4.1 - 10.4.2.20 - so if running Hydro 7 you are currently on a JB 4.1 bootloader.
Alot of customs roms are now based on a JB 4.2 bootloader, so if wanting to flash a rom that requires a JB 4.2 bootloader you will need to upgrade your bootloader first.
If upgrading to JB 4.2 bootloader please ensure the you flash the correct recovery, only the -4.2 versions of twrp are compatibly with the 4.2 bootloaders. Flashing a non-4.2 version of twrp or cwm will brick your device. Have a look at my how-to is sig below for more info.
If you need any help in doing this or more info just let me know.
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I am on this bootloader us-epad.10.4.2.13.20120907 and twrp 2.2 with CleanRom I will like to flash KickKass MM but i need the new TWRP.
Can you point me to a guide on how to upgrade the bootloader ?
Currently my phone is on 4.1.2 bonestock ROM with [VRBMF1] and I believe the bootloader is unlocked. I've been out of the loop for so long that I dont know what the best way to get to 4.3 is while keeping my root and bootloader unlocked. Any help is appreciated!
Wolfmother1257 said:
Currently my phone is on 4.1.2 bonestock ROM with [VRBMF1] and I believe the bootloader is unlocked. I've been out of the loop for so long that I dont know what the best way to get to 4.3 is while keeping my root and bootloader unlocked. Any help is appreciated!
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First, a caveat: Android 4.4 was just released for our phones a couple days ago, so you may want to wait a little while and see if any ROMs based on it come out. As of right now, there isn't a rooted version available, so 4.3 is your only option.
If you're on Bonestock, your bootloader is in fact unlocked. You can flash any of the 4.3 ROMs you find in the Android Development section. You should update your recovery first, I use TWRP version 2.6.3.0, the newest version is 2.7.1.0.
You should also flash the newer modem for the phone, VRUCML1, first, you can find that here under the Modems folder: http://d-h.st/users/invisiblek/?fld_id=35604#files. Only do that if you are actually going to update to a 4.3 ROM. Then you can flash any ROM you like: CleanROM 8.2 would be my pick, there's also Alliance and MOAR.
Jacquestrapp said:
First, a caveat: Android 4.4 was just released for our phones a couple days ago, so you may want to wait a little while and see if any ROMs based on it come out. As of right now, there isn't a rooted version available, so 4.3 is your only option.
If you're on Bonestock, your bootloader is in fact unlocked. You can flash any of the 4.3 ROMs you find in the Android Development section. You should update your recovery first, I use TWRP version 2.6.3.0, the newest version is 2.7.1.0.
You should also flash the newer modem for the phone, VRUCML1, first, you can find that here under the Modems folder: . Only do that if you are actually going to update to a 4.3 ROM. Then you can flash any ROM you like: CleanROM 8.2 would be my pick, there's also Alliance and MOAR.
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Thank bud, this is exactly what I needed!