Unlocking bootloader after taking JB update? - Transformer TF300T Q&A, Help & Troubleshooting

So I have, until now, been content with a locked boot loader on my tab. I rooted it back on .30, but installed the jb firmware when it was released, so I no longer have root. I've been looking into it and it looks like there's a way to restore my root, but that's not really my question. I'm wondering if there's a way to unlock my boot loader now and start trying out some custom ROMs. On the Asus website it says the tool is only available for ICS. Has anyone tried it anyways? There's no workaround that I missed, is there? Apologies in advance for my noobieness and thank you for any input.
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TheAdamizer said:
So I have, until now, been content with a locked boot loader on my tab. I rooted it back on .30, but installed the jb firmware when it was released, so I no longer have root. I've been looking into it and it looks like there's a way to restore my root, but that's not really my question. I'm wondering if there's a way to unlock my boot loader now and start trying out some custom ROMs. On the Asus website it says the tool is only available for ICS. Has anyone tried it anyways? There's no workaround that I missed, is there? Apologies in advance for my noobieness and thank you for any input.
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If you check the thread here he says he unlocked the bootloader after updating to JB, so yes apparently it works anyways.

So then what was his mistake? Using CWM? Trying to install an ICS ROM after taking the JB OTA? Haha saying "device unlocked" on the boot animation is meaningless if it boot loops.
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I think his mistake was trying to install an ICS rom, after updating to JB. I'm assuming he didn't know he was basically trying to downgrade :/ which I don't think anyone has managed to do yet as far as I'm aware...

Related

Tf700 roms on tf300t

Hi guys i've been looking through the forums and i have noticed that the tf700 users can flash our roms! I was wondering did anyone try flashing one of their roms with our device?
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Just checked over there we have more updated roms anyway there development seems slow that why they have to port ours lol.
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I agree but in the long run development for their device should pick up and surpass the development we have for ours. So if we find a way to use there roms it will lengthen the amount of content for our tablet.
BUMP! I'd like to get an answer to this as well. It seems that everything is the same other then an LED. Has any tried flashing one of their Roms?
I flashed the TF700 Stock Rom Was trying to get back to ICS. Stock flashed and was running. But then you have the tf700 bootloader
So you can flash them.
mikaole said:
I flashed the TF700 Stock Rom Was trying to get back to ICS. Stock flashed and was running. But then you have the tf700 bootloader
So you can flash them.
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Click to collapse
Hum... does this means that we will have 1.5Ghz kernel on our TF300T ?

Rooted, unlocked, installed twrp 2.3. Now i need help choosing the right JB rom

Hey all, I've read up on alot of what I needed to do with regard to rooting and unlocking and installing a custom recovery and I thank all of the people who've contributed so much to the TF700 scene and the android dev in general.
What i need help with now is a suggestion on which rom to go for. Now I have gotten this far, but this last step is sort of like a leap of faith for me as i do not have nvflash installed because my tablet came with the .30 firmware by default. I also have a few questions: my jb version is 4.1.1, can I flash cm10 for JB 4.1.2? It might be a stupid question, but i haven't found an answer at all from the threads. Cleanrom is also an option, so is it easy to flash? I'm very worried to take the last step because as ive said i dont have nvflash to back me up if something goes horribly wrong.
Any help would be very much appreciated!
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Easy answer: http://forum.xda-developers.com/showthread.php?t=1919851
Don't look further... just make a backup of what you have now.
Thanks for the link. So i just download it and put it in my ext sd card and install it through twrp?
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Rooting latest firmware

I have asus tf300t I never rooted on ics either and have bootloader locked. I updated to latest via ota updatesz is there a way to root without unlocking bootloader any link will be helpfull. Or guide me on how to unlock bootloader and then root.
Thanks in advance
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You can unlock the bootloader with ASUS's official app on their website, search up transformer tf300 and there will be a .apk that you can install to unlock it. After that, use fastboot to flash a recovery such as cwm or twrp, then flash a root package or a ROM with root. Hope this helped!
Oky thanks can you send me link on how to flash using fastboot on tf300? Also cant I just keep factory room and root that if ao how any links will be helpful thanks
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You can read this thread for more information about unlocking and rooting, but before starting anything, please think about it and be aware that unlocking the bootloader will:
- void your warranty
- prevent further OTA updates for your tablet from Asus
Cheers
The TF300T unlocking guide
danyal241 said:
I have asus tf300t I never rooted on ics either and have bootloader locked. I updated to latest via ota updatesz is there a way to root without unlocking bootloader any link will be helpfull. Or guide me on how to unlock bootloader and then root.
Thanks in advance
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Before you read, there are some considerations: I unlocked my device last night and I am running either .29 or .30 of the ICS firmware. I also, never connected the device to my network until after I unlocked it. So if you have a TF300T runing the above versions of ICS, then it should work for you. You said you: "updated to latest via ota..." If you did this, you are on Jelly Bean and at the moment, there is no known way to make your device "unbrickable." You can still mod it, but if you dont follow directions perfectly, you could easily brick your device. Now without further hesitation....
Here it is, the TF300T unlocking guide:
Go to the Asus site and download the v7 tool
copy the v7 tool to the tablet
run the v7 tool on your tablet from the tablet GUI
it will install the v7 unlocker application
run the unlocker application from your app drawer
you have to accept a few agreements
click the unlock button
after that, your device will reboot
This is how to confirm that the unlock tool was successful: After your TF300 reboots, you will see the normal ASUS logo in the middle and some very small text in the top left will say: "device unlocked."
Now for rooting:
If you already have root, and you want to keep your exiting root access, make a backup after unlocking. The backup instructions are included in the "unbrickable" method. If you do not have root, just make a backup anyways. Then you can flash a ROM onto your device that is pre-loaded with root.
I hope that answered your questions.
Thanks but no I am on jb. So I will just wait till a solution comes out for unbrickable before trying anything dont want to mod ot just want tp remove a few apps
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danyal241 said:
Thanks but no I am on jb. So I will just wait till a solution comes out for unbrickable before trying anything dont want to mod ot just want tp remove a few apps
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It seems someone always bricks on something that was thought to be unbrickable. No I'm not suggesting you go forward, just the opposite. As long as you aren't sure about change enjoy your tablet as it is and just forget about the apps that bother you.
Good Luck!
shinigenEddy said:
You can unlock the bootloader with ASUS's official app on their website, search up transformer tf300 and there will be a .apk that you can install to unlock it. After that, use fastboot to flash a recovery such as cwm or twrp, then flash a root package or a ROM with root. Hope this helped!
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Hmm can u link me to a flash package for. 18 firmware?
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_Morfic_ said:
You can read this thread for more information about unlocking and rooting, but before starting anything, please think about it and be aware that unlocking the bootloader will:
- void your warranty
- prevent further OTA updates for your tablet from Asus
Cheers
Click to expand...
Click to collapse
This thread is for tf300tg I havr tf300t
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Odd issue with cwm for JB.

Ok I hope you all can help sort something out for me. I just got a refurbished TF300T a couple days ago. I unlocked it in ICS and then it forced the OTA of 4.1.1 on me. I had no problem getting ADB drivers in and flashed the jelly bean recovery. I rebooted into recovery and there was cwm. I tried flashing the rootzip that is out there but it did not work. I then tried to do a bakup and it failed. I then realized i could not see emmc only sd.
Any ideas.
I have a rooted modded nooktab so i am somewhat familar with these devices but i am stumped.
Thanks for the help
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cosmic06 said:
Ok I hope you all can help sort something out for me. I just got a refurbished TF300T a couple days ago. I unlocked it in ICS and then it forced the OTA of 4.1.1 on me. I had no problem getting ADB drivers in and flashed the jelly bean recovery. I rebooted into recovery and there was cwm. I tried flashing the rootzip that is out there but it did not work. I then tried to do a bakup and it failed. I then realized i could not see emmc only sd.
Any ideas.
I have a rooted modded nooktab so i am somewhat familar with these devices but i am stumped.
Thanks for the help
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I'd try manually flashing the firmware and then flashing CWM again, or TWRP which some users will argue is much better than CWM.
[deleted
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Thanks for the tips. Yea in a tough spot. Not sure what to do. I will,search around. You think flashing the firmware will work. Should i flash stock recovery too.
Odd issue. Wonder why they did this?
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Just read the post again if you are still on 4.1.1 the disreguard what i had mention theres probably away to fix which im sure some one can help but what i had talked about was the 4.2.1 jb update attempting to root on that is a no go. So just ignore that post. I'm on stock 4.2.1 but unlocked bootloader so can't help there cant go any further myself at the moment.
In my setup menu theres an option to add seperate users some seem to think that it encrypts the information so another person who has access under another user name cant see another person info. Sound logical to me but really messed things up for us.
Now still thats all just speculation no one knows for sure what the exact issue is with the 4.2.1 update is yet but best advice is to wait till it's figured out.
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cosmic06 said:
Thanks for the tips. Yea in a tough spot. Not sure what to do. I will,search around. You think flashing the firmware will work. Should i flash stock recovery too.
Odd issue. Wonder why they did this?
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Reflashing stock img will flash back stock recovery, so I'd just do what I said, you should be good.

(Q) can i update to official updates after unlocking device?

i want to unlock my device as i dont like the new 4.2.1 update and want to change to custom or go back to 4.1.1.
do i need to unlock to go back to 4.1.1. official?
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adry1988 said:
do i need to unlock to go back to 4.1.1. official?
Click to expand...
Click to collapse
I think you can upgrade and downgrade Asus stock ROM just by placing the firmware on an sdcard. No need to unlock in this case.
You probably need to unpack the downloaded ZIP once.
There are more details somewhere, use search!
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