My device:
- TF300
- Android 4.2.2. / CM10.1 (10.1-20130621-nightly-tf300t)
- WW_epad-10.4.2.9-20120809 (= 4.1 bootloader version)
- TWRP 2.6 recovery (for bootloader v4.1)
My aim is to update to CM10.2, therefore I need a bootloader version 4.2. I downloaded the latest firmware from the asus-website (TF300T-WW_epad-10_6_1_27_5-UpdateLauncher.zip) and put it on /sdcard.
But I'm in doubt:
- Is the asus firmwire described above the best way to upgrade my bootloader? And can I use TWRP to install this zip?
- If so, do I need to change the TWRP version to 2.6 ready for -4.2 (teamw.in/project/twrp2/97) not at all, before or after I installed the new bootloader?
I know bootloader/recovery issues can easily brick a TF300, so to be sure I ask. Thanks in advance!
Found this thread:
Quote:
Originally Posted by Nschneider7 View Post
Nope missed that and was just reading about it. Can I just flash the "TF300T-US_epad-10_6_1_27_1-UpdateLauncher" zip in TWRP? Then from there flash the new TWRP and then install CM? Or do I have to go back and let it upgrade to that point?
I flashed the blob via fastboot. Then flashed recovery via fast boot. Then cm10.2 from recovery. I was on old June build of 10.1 and 4.1 bootloader same as you. Be safe fastboot flash follow guide in q and a section
Sent from inside my mkv.
Same question, but not exactly answered: can you do this without a cable connection with your pc?
X10i/3011 said:
Found this thread:
Quote:
Originally Posted by Nschneider7 View Post
Nope missed that and was just reading about it. Can I just flash the "TF300T-US_epad-10_6_1_27_1-UpdateLauncher" zip in TWRP? Then from there flash the new TWRP and then install CM? Or do I have to go back and let it upgrade to that point?
I flashed the blob via fastboot. Then flashed recovery via fast boot. Then cm10.2 from recovery. I was on old June build of 10.1 and 4.1 bootloader same as you. Be safe fastboot flash follow guide in q and a section
Sent from inside my mkv.
Same question, but not exactly answered: can you do this without a cable connection with your pc?
Click to expand...
Click to collapse
Honestly, I'd rather be safe than sorry when upgrading bootloaders. So I would always suggest using the cable connection because it is less likely to fail. You probably could get away without using it to flash stock, but you wouldn't be able to flash TWRP without fastboot, and then couldn't flash a custom ROM. But everything feels safer once you have Nvflash backups.
X10i/3011 said:
My device:
- TF300
- Android 4.2.2. / CM10.1 (10.1-20130621-nightly-tf300t)
- WW_epad-10.4.2.9-20120809 (= 4.1 bootloader version)
- TWRP 2.6 recovery (for bootloader v4.1)
My aim is to update to CM10.2, therefore I need a bootloader version 4.2. I downloaded the latest firmware from the asus-website (TF300T-WW_epad-10_6_1_27_5-UpdateLauncher.zip) and put it on /sdcard.
But I'm in doubt:
- Is the asus firmwire described above the best way to upgrade my bootloader? And can I use TWRP to install this zip?
- If so, do I need to change the TWRP version to 2.6 ready for -4.2 (teamw.in/project/twrp2/97) not at all, before or after I installed the new bootloader?
I know bootloader/recovery issues can easily brick a TF300, so to be sure I ask. Thanks in advance!
Click to expand...
Click to collapse
I was in the same situation as you not so long ago. Was on 4.1.1 with TWRP 2.6.3.0 JB installed. Asked myself these questions repeatedly. I updated via fastboot to the staging partition using the blob within the latested ASUS firmware zip file. The blob file contains, bootloader, recovery, system and boot. This means your are essentially returning to stock everything upon flashing. This was a huge sigh of relief as I didn't want to brick my device because of the same concerns you have. So I flashed via fastboot to 10.6.2.10 then flashed to TWRP 2.5.0 4.2 as 2.6.3.0 didn't work for me for some reason. I heard a number of people say that 2.6.3.0 4.2 is buggy and suggested to stay with 2.5.0 in which I would recommend from experience. Then flash your custom firmware.
Pretty lost by now. I am still (sick of it) on an unlocked Asus stock 4.2.1 with TWRP 2.5. My intention is to change the ROM but was considering CM 11 which I understand does require TWRP 2.6.X at least. I was hoping for a fix for installing navflash on post JB but I believe does not possible so anything that means touching the bootloader makes me very concern.
I was wondering:
- Can I flash TWRP 2.6 (4.2 img file i beleive) directly from my already installes TWRP 2.5 bootloader and then install CM 11? or do I need fastboot process again?
- Is CM 11 worth on the TF300? I just need some stability and reasonable speed after having so many problems with the stock rom.
Thanks.
luison said:
Pretty lost by now. I am still (sick of it) on an unlocked Asus stock 4.2.1 with TWRP 2.5. My intention is to change the ROM but was considering CM 11 which I understand does require TWRP 2.6.X at least. I was hoping for a fix for installing navflash on post JB but I believe does not possible so anything that means touching the bootloader makes me very concern.
I was wondering:
- Can I flash TWRP 2.6 (4.2 img file i beleive) directly from my already installes TWRP 2.5 bootloader and then install CM 11? or do I need fastboot process again?
- Is CM 11 worth on the TF300? I just need some stability and reasonable speed after having so many problems with the stock rom.
Thanks.
Click to expand...
Click to collapse
Yes, CM11 requires TWRP 2.6.3.1.
You can install NvFlash on a JellyBean Bootloader, link and guide is in my signature.
If you bootloader is above 10.6.1.8, you can just flash the TWRP 2.6.3.1 and then reboot and then flash CM11 + gapps.
I think it is super smooth with the OC Kernel.
Related
I have a asus tf300t running 4.2.1 with unlocked bootloader and root. I am running twrp v2.5.0.0 and I have already made backups of my apps. I am trying to install a custom rom. Preferably PACman rom but at this point any will do. When I try to flash the rom it go through the whole process then reboots but does not get past the asus splash screen.
What is the problem? Is it that the new bootloader does not accept any custom roms, if so how do I downgrade to 4.1? Otherwise I am open to any advice.
Holyman8388 said:
I have a asus tf300t running 4.2.1 with unlocked bootloader and root. I am running twrp v2.5.0.0 and I have already made backups of my apps. I am trying to install a custom rom. Preferably PACman rom but at this point any will do. When I try to flash the rom it go through the whole process then reboots but does not get past the asus splash screen.
What is the problem? Is it that the new bootloader does not accept any custom roms, if so how do I downgrade to 4.1? Otherwise I am open to any advice.
Click to expand...
Click to collapse
You must be on Jelly Bean 4.2.1
with the Asus Stock bootloader 10.6.1.8 and TWRP Recovery patched 2.4.4.0
or
Bootloader 10.1.15.3 and TWRP patched 2.5.0.0
You will find all versions of Stock firmwares and Stock kernels here
And the TWRP recoveries here
philos64 said:
You must be on Jelly Bean 4.2.1
with the Asus Stock bootloader 10.6.1.8 and TWRP Recovery patched 2.4.4.0
or
Bootloader 10.1.15.3 and TWRP patched 2.5.0.0
You will find all versions of Stock firmwares and Stock kernels here
And the TWRP recoveries here
Click to expand...
Click to collapse
I am currently running the 10.1.15.3 bootloader and TWRP 2.5.0.0, yet it still does not finish flashing the ROM. I even tried to flash a more simple stock based ROM, ie. black beans 8. This did not work either. It went through the twrp flash and restarted but when it got to the ASUS boot up screen it simply stopped. I waited about 10 minutes for it to possibly load however it never did. So I am restored back to my stock and am awaiting any further help.
Holyman8388 said:
I have a asus tf300t running 4.2.1 with unlocked bootloader and root. I am running twrp v2.5.0.0 and I have already made backups of my apps. I am trying to install a custom rom. Preferably PACman rom but at this point any will do. When I try to flash the rom it go through the whole process then reboots but does not get past the asus splash screen.
What is the problem? Is it that the new bootloader does not accept any custom roms, if so how do I downgrade to 4.1? Otherwise I am open to any advice.
Click to expand...
Click to collapse
In the OP for PACman rom it says you must be on android 4.1.1 to flash his rom. You need to pick a rom for your 4.2.1. I am also on 4.2.1 and run CROMI 4.6.6 with no issues. Have also succesfully tried the Energy rom. Read carefully the OP for the rom's you are considering and make sure they are for 4.2.1
Holyman8388 said:
I have a asus tf300t running 4.2.1 with unlocked bootloader and root. I am running twrp v2.5.0.0 and I have already made backups of my apps. I am trying to install a custom rom. Preferably PACman rom but at this point any will do. When I try to flash the rom it go through the whole process then reboots but does not get past the asus splash screen.
What is the problem? Is it that the new bootloader does not accept any custom roms, if so how do I downgrade to 4.1? Otherwise I am open to any advice.
Click to expand...
Click to collapse
I am having the same problem! I am running 4.2.1 and im trying to install blackbean 8 using twrp 2.5.0.0. I factory reset in twrp and wipe cache and dalvic. I then install the the rom and reboot but it will not go past the first boot screen with the tegra logo in the bottom right. It always flashes for a second but then does nothing. I have even tried cm 10.1 and it does the exact same thing. I am still able to restore back to stock. This is my first time flashing a rom so any help would be appreciated!
For the latest [ROM][4.2.2][ OFFICIAL] PAC-man v23.0.0 [OC up to 1.7GHz][New Update 22/06/2013], if you read the installation process, you need to be 4.1.1 and not 4.2.1 and also you need installed custom recovery for JB 4.1 BL !
For the latest [ROM]ASU-JellyBean-Hydro 8 (6/29/13)Liquid Butter..- Tf300 -Official 10.6.1.15.3 Base, you need to be on 4.2.1 and 10.6.15.3 bootloader
and you will see to the changelog:
...not sure if any bootloader will work...
Click to expand...
Click to collapse
Hope it's helpful for you
Hi... im currently running
CROMi-X v5.2.2, which is based on rom 10.6.1.27.5 with twrp 2.5.0.0 and my bootloader says is the one that came with us10.6.1.15.3-20130416...
To install omni kitkat, im been asked to have the latest bootloader, to avoid screwing up im planning on insalling the latest stock from asus...
However, each time i install a stock through twrp or cwr, the new image not only updates the bootloader and deletes all my data, but rewrites my recovery, for which then i have too reupload using fastboot to upload the recovery...
Is there any way to make sure i dont loose the recovery after flashing a stock firmware... or a way to flash the recovery from the recovery before rebooting after flashing the stock?
Thanks everyone!
mertonv said:
Hi... im currently running
CROMi-X v5.2.2, which is based on rom 10.6.1.27.5 with twrp 2.5.0.0 and my bootloader says is the one that came with us10.6.1.15.3-20130416...
To install omni kitkat, im been asked to have the latest bootloader, to avoid screwing up im planning on insalling the latest stock from asus...
However, each time i install a stock through twrp or cwr, the new image not only updates the bootloader and deletes all my data, but rewrites my recovery, for which then i have too reupload using fastboot to upload the recovery...
Is there any way to make sure i dont loose the recovery after flashing a stock firmware... or a way to flash the recovery from the recovery before rebooting after flashing the stock?
Thanks everyone!
Click to expand...
Click to collapse
Flashing the stock ROM reverts the tablet back to stock, so the recovery must go. Luckily, the bootloader you are on is compatible with the KitKat recovery (10.6.1.15.3) so you shouldnt have to flash the stock ROM at all. If you were on 10.6.1.8, you would have had to upgrade.
cmendonc2 said:
Flashing the stock ROM reverts the tablet back to stock, so the recovery must go. Luckily, the bootloader you are on is compatible with the KitKat recovery (10.6.1.15.3) so you shouldnt have to flash the stock ROM at all. If you were on 10.6.1.8, you would have had to upgrade.
Click to expand...
Click to collapse
Thanks, then guess i only need to flash the kitkat twrp...
Asked the same question about my bootloader at the omni thread to be sure, if they say that it works too, will go ahead and give it a try
My TF300T still has the old stock firmware from October 2012 (4.1).
It is unlocked and has TWRP from february 2013.
Now I will be jumping to a current custom firmware (Crombi-kk 4.4).
If I understand correctly, I have to flash the latest STOCK firmware (V10.6.1.27.5 android 4.2) and install the new CWM/TWRP before I can flash a custom firmware.
My main worry is flashing the newest stock rom on my already TWRP/rooted/unlocked TF300T. Will that cause a problem or will the stock firmware wipe everything clean (except for the unlock)?
Also, the unlock utility on Asus's website is made for 4.2 only. When I unlocked my TF300T, it was 4.1. What will happen when I flash the stock 4.2? Will my 4.1 unlock cause problems or will it be wiped, or will it still be effective?
alkizmo said:
My TF300T still has the old stock firmware from October 2012 (4.1).
It is unlocked and has TWRP from february 2013.
Now I will be jumping to a current custom firmware (Crombi-kk 4.4).
If I understand correctly, I have to flash the latest STOCK firmware (V10.6.1.27.5 android 4.2) and install the new CWM/TWRP before I can flash a custom firmware.
My main worry is flashing the newest stock rom on my already TWRP/rooted/unlocked TF300T. Will that cause a problem or will the stock firmware wipe everything clean (except for the unlock)?
Also, the unlock utility on Asus's website is made for 4.2 only. When I unlocked my TF300T, it was 4.1. What will happen when I flash the stock 4.2? Will my 4.1 unlock cause problems or will it be wiped, or will it still be effective?
Click to expand...
Click to collapse
If you would like help with this shoot me an email here [email protected]
We can get you where you need to be and than we can post what we did back here so everyone can see what we did...
Thx Josh
Thanks for your offer. I actually got the green light on the CM 4.4.x Q&A thread.
I read that flashing the CWM for 4.1 would brick your tablet if you had 4.2 installed, so I was worried that flashing 4.2 on top of an existing 4.1 CWM would brick it as well. It turns out it simply removes the CWM entirely. Good times.
Basically what I ended up doing was:
1 - Transfer the latest official TF300T firmware (zip file) onto an SD card.
2 - Start my TF300T with my old (4.1) CWM recovery and select to flash my android with the zip file on the SD card.
3 - The TF300T bootloader stayed unlocked, but the old CWM was gone.
4 - Using ADB: Upload & flash the new CWM Philz Touch
5 - Install/flash the desired custom rom (from within CWM using SD card)
6 - Restore to factory default (from within CWM)
Now I even installed Grimlock's kernel to allow overclocking.
My TF300T has a new life. It is now very much acceptable in terms of speed.
I recently bought a TF300t second hand and I really need some help! Some years back I was playing around with custom roms on Android devices but im very out of touch.
I would like to install one of the more recent roms on this device. Any suggestion here appreciated.
The device has already been rooted and has TWRP v2.6.3.1 installed. I understand that I need to upgrade this to 2.8. to install the latest roms but im having issues doing that. For a start im unsure how to find out if I have the latest Bootloader 4.2
I really dont want to brick this device!
I tried using ADB to update TWRP but the usb connection never seemed to find my device in the right mode.
The device is currently running Android 4.2.1
Custom ROM CROMi-Xenogenesis 5.4 - 10.6.127.5 WW ODEX.
Any help and advice really appreciated )
tsddave said:
I recently bought a TF300t second hand and I really need some help! Some years back I was playing around with custom roms on Android devices but im very out of touch.
I would like to install one of the more recent roms on this device. Any suggestion here appreciated.
The device has already been rooted and has TWRP v2.6.3.1 installed. I understand that I need to upgrade this to 2.8. to install the latest roms but im having issues doing that. For a start im unsure how to find out if I have the latest Bootloader 4.2
I really dont want to brick this device!
I tried using ADB to update TWRP but the usb connection never seemed to find my device in the right mode.
The device is currently running Android 4.2.1
Custom ROM CROMi-Xenogenesis 5.4 - 10.6.127.5 WW ODEX.
Any help and advice really appreciated )
Click to expand...
Click to collapse
Android 4.2.1 is newest official.
10.6..... is bootloader version - newest there is.
flashing recovery and/or ROM will not overwrite bootloader - it stays the same.
You can go to twrp official website and get 2.8.0.1-4.2 blob to flash (unless your target rom states different version needed - see 1st post of yout target thread) - I got it from there - flashed KatKiss using it.
ADB - when android is running.
fastboot - on bootloader screen (booted with voldown+power - RCK / android / wipe data icons) - used to flash twrp blob
Sent from my TF300T using XDA Free mobile app
th3cr0w said:
Android 4.2.1 is newest official.
10.6..... is bootloader version - newest there is.
flashing recovery and/or ROM will not overwrite bootloader - it stays the same.
You can go to twrp official website and get 2.8.0.1-4.2 blob to flash (unless your target rom states different version needed - see 1st post of yout target thread) - I got it from there - flashed KatKiss using it.
ADB - when android is running.
fastboot - on bootloader screen (booted with voldown+power - RCK / android / wipe data icons) - used to flash twrp blob
Sent from my TF300T using XDA Free mobile app
Click to expand...
Click to collapse
Ok got it all fixed now. Thanks!
So, not to hijack, but I'm actually in a similar boat. I'm currently rooted and unlocked on 4.1.1 TWRP 2.3.3.0 and am looking to flash the new 5.0 Rom.
Does anyone have a handy guide on what I should do? Do I just need to flash a 4.4 compatible TWRP version, then flash the ROM? Would like to avoid bricking my tablet.
jaydotelloh said:
So, not to hijack, but I'm actually in a similar boat. I'm currently rooted and unlocked on 4.1.1 TWRP 2.3.3.0 and am looking to flash the new 5.0 Rom.
Does anyone have a handy guide on what I should do? Do I just need to flash a 4.4 compatible TWRP version, then flash the ROM? Would like to avoid bricking my tablet.
Click to expand...
Click to collapse
Yes here you are ....
Get the SKU from your bootloader screen .....
Then go to the Asus website and get the firmware for your SKU ending in 27.5 ...
Then unpack the zip and there will be another zip unzip it you will find a file called blob ....
Flash this blob from fastboot ...
Thx Josh
Hi,
I am currently running Zombi-pop 5.02 B4 and has TWRP 2.8.7 Kang on my TF700T. I would like to have nvflash access, can I downgrade to a JB stock version that allows such access? and if yes which stock rom and which boot loader?
many thanks
satnile said:
I am currently running Zombi-pop 5.02 B4 and has TWRP 2.8.7 Kang on my TF700T. I would like to have nvflash access, can I downgrade to a JB stock version that allows such access? and if yes which stock rom and which boot loader?
Click to expand...
Click to collapse
You don't need to downgrade, you can install the flatline recovery, pull your blobs, then reinstall TWRP.
_that said:
You don't need to downgrade, you can install the flatline recovery, pull your blobs, then reinstall TWRP.
Click to expand...
Click to collapse
Really, this is helpful. I was under the impression that a stock JB boot loader is required for nvflash to work. I shall give it a try and report back.
Many thanks
I have successfully done the nvflash access and generated the blobs for my TF700T and stored them in triplicates. My question now is that I have been left with AndroidRoot 10.6.1.14.4 bootloader and a primitive flatline recovery, can I flash TWRP Kang 2.8.6.0 back without problem?
many thanks once again.
Congrats! Yes, flash TWRP kang, reboot, then flash the stock bootloader from here: http://forum.xda-developers.com/showpost.php?p=55238386&postcount=3
Reboot
All is good
Flatline CWM recovery couldn't flash the zips for bootloader and TWRP Kang, so I flashed the TWRP img via fstboot first, then booted into TWRP recovery and flashed the bootloader zip and it worked fine, no bricking whatsoever.