yashsingh1/xdaforums huggingface dataset:
[Asus  Eee Pad Transformer Prime] KubaStr:
Bootloader version

I had similar problem - booting loop :(

I have resolved this problem upgrading bootloader to 10.4.2.18 (I had v. 10.4.2.15).

I did this installing TF201 Firmware from Asus support web page.

After firmware installation, my tab started booting (to Android 4).

Then, I repeated procedure described in this thread from step 4 and finally I have Android 6 on my device :D

I have also changed file system to f2fs only on Data partition.

I recommend to add additional step to the procedure: UPGRADE firmware to 10.4.2.18 (not all people runs on this version).
[Asus  Eee Pad Transformer Prime] djibe89:
Great work indeed !

I forgot to mention I had Bootloader V 10.4.2.18 !!!

Tutorial is fixed.

Thk u very much
[Asus  Eee Pad Transformer Prime] deltabert:
Hi KubaStr,

Great that you got your tab fixed again! That looks promising for mine as well.

My feeling was also that it should be something with the bootloader, but i am a novice as far as Android concerns..

(But i'am forced to learn about Android by this problem ;) )

Can you tell me where you got the other bootloader?

And can you explain me how you installed the new bootloader?

And as what the Asus firmware concerns, from which continent are you from? It's for the correct SKU version.

I'am from Europe, so i think i should download the WW SKU firmware.
[Asus  Eee Pad Transformer Prime] KubaStr:
The boot loader is upgraded with the firmware.

I was able to get to the recovery mode holding Volume- while tablet was rebooting in the loop. As I remember, there was my boot-loader version displayed at the top of the screen. There was also WW symbols visible near the version number, so I have downloaded WW version from the Asus web page (I cannot paste link because I'm blocked by this forum to post URLs). I'm from Poland.

I downloaded the file: WW_epaduser_10_4_2_18UpdateLauncher.zip

I copied content of this archive (the WW_epad-user-10.4.2.18.zip file) to the external SD card.

I have installed the firmware from the card using TWRP's Install option (like in step 8 of the procedure but using the single, downloaded, firmware file). As i remember, I formated data and wiped all partitions before installation (like in step 7).

After recovering my tablet with the firmware to the Andorid 4, I had the new bootloader version installed.

Then I started upgrade procedure for Android 6 from the step 5 - RECOVERY (not from the step 4 as I mentioned in the previous post by mistake).

Major difference during installation was that this condition from the procedure was fulfilled:

"tab reboots in bootloader mode and the USB icon is gone, it's perfect."

The USB icon was still visible when I tried upgrade procedure on the old boot loader.

By the way djibe89: Thank you very much for you tutorial !
[Asus  Eee Pad Transformer Prime] deltabert:
Thank you KubaStr for your info!

I will try them, but unfortunately, i have to go away for a couple of days :(. But i let you know how it went.
[Asus  Eee Pad Transformer Prime] Nektopoli:
I always follow the 5.1.1 instructions;

Go to twrp> wipe> format data; then type yes; [It takes about 70 minutes to format] (Mines about 30 mins on a 32GB TF201) - Make sure that your battery is full *** Do Not interrupt format(if you do, it will brick)

After it's done go to Wipe> Advanced Wipe> Select Data; Tap [Repair or Change File System] Change File System to 'F2FS' - Swipe to Change

Wipe 'dalvik cache', 'system', 'cache', 'data', 'internal storage'

Flash KatKiss-ROM.zip from microsd card

Flash Supersu.zip

Flash Gapps.zip

Reboot

LONG Wait.

NP
[Asus  Eee Pad Transformer Prime] Newby123:
how to install windows driver

I am on step 2 and trying to install andriod_apxusb.inf in windows 7 but get error message:"INF file doesn't support this method of installation". Please suggest how to go through it. thanks.

Keith
[Asus  Eee Pad Transformer Prime] deltabert:
:silly:

Ok, this afternoon i copied the content of the original ASUS file, WW_epad-user-10.4.2.18.zip, to the sdcard.

In TWRP i wiped all partitions and with Install i installed this file. That seems to go well.

There was the install bar for a couple of minutes and then i got the Asus Splash Screen. Nothing happening.

I waited about 30 minutes, and then i rebooted the tab. When i went back to TWRP it tried to install Android; but it ended immediately with the Android bot on his back and an exclamation mark in a red triangle.

Then i realized, i noticed that during the wipe, it formatted the /Data with f2fs! And i think the original Asus is not using f2fs but ext4! :silly: :crying:

The positive thing is that i am now on bootloader 10.4.2.18.... But i cannot go back to TWRP/RCK. If i select that it starts to install Android, resulting with the 'bot on his back'.

I still can reach fastboot. Does anyone knows if there is a way to fix this with fastboot? Or perhaps adb would be the better tool for an action like this?

Perhaps there is a way to delete the installed Android installation file using fastboot or adb, so that i will be able to get TWRP/RCK again??
[Asus  Eee Pad Transformer Prime] deltabert:
Update reviving TF201

L.S.

Here an update on my continuing story of getting Android 6 on my tab.

I got my tab revived by re-installing the ASUS default 4.1.1 image, using nvflash!

Luckily i had done the nvFlash backup as described by djibe89 in the guide. Further i found a guide by craigacgomez, on how to perform an nvflash restore. So i extracted the needed files from the ASUS image using BlobUnpack.exe and got my tab reinstalled with Android JB 4.1.1. The good thing is, now the bootloader is at the correct level: 10.4.2.18.

So, i can start all over again with this guide from djibe89.

Yet an other good thing is that i am gaining much more confidence in playing around with the tab and installing different roms, now i know how i can get the almost bricked tab back using the APX mode.

I will inform you about the upgrade to Android 6.
[Asus  Eee Pad Transformer Prime] djibe89:
[MENTION=7939229]deltabert[/MENTION]. Glad your tab is back.

This nvflash really saves all.

But beware, other brands don't work like Asus. So, always be very careful.

As an exemple, it looks like my Galaxy S2 is bricked ...
[Asus  Eee Pad Transformer Prime] deltabert:
Hi djibe89 and other interested people,

Just installed Android 6 on my TF201 following your updated guide, without problems.

I noticed, besides the adjustment in the guide regarding the bootloader version, that you also left out the next sentence under 7 - SET FILESYSTEM TO F2FS: "Repeate the operation for the Cache partition". So Cache should not be formatted as f2fs as was in the first place. Also, re-installing Android JB 4.1.1, gave me the correct bootloader 10.4.2.18.

Well, the installation now went smoothly.

Despite all encountered problems, I would like to thank you for the Guide!

And I must say, the whole process was very informative/instructive for me!

Kind regards, Bert
[Asus  Eee Pad Transformer Prime] djibe89:
I don't have the tab anymore.

I think it should work with cache F2FS, but I'm not sure. So i prefer not to affirm it.

Could you try ?
[Asus  Eee Pad Transformer Prime] deltabert:
Hi djibe89,

I understand that you would like to be sure if cache formatted to f2fs would also work.

The last weeks i have been so busy with this tab, that for the moment i will leave it as it is. (having other priorities at the moment...)

But i found out that Android 7 is also available for the tab. As soon as i start with that, i will first do an install of A6 with cache f2fs.

To be continued...:)

Written with XDA-app on Android 6 on TF201.

(Android version: 6.0.1, kernel version: 3.1.0-katkernel-tf700-037+, Build nr: Katkiss-029 6.0.1 MOB30X eng.timduru, 20160804.083514)

Je tiens a vous remercier encore une fois pour votre tutoriel.

Ma tablette a ete donne une nouvelle vie!
[Asus  Eee Pad Transformer Prime] djibe89:
Hi delta,

I would wait for later builds for Android 7 Nougat. It is still bugged !

Of course when it's stable I will add it to my tutorial.

Have a nice time,

see ya
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
I am having this same problem, Win 7 SP1
[Asus  Eee Pad Transformer Prime] djibe89:
- Did you install .inf with right click-> Install or double click on it ?

- You may try using Windows device manager :

You might try to select the inf file from Device Manager:

Right-click the device, select Update Driver Software, then Let me pick, click Have disk, Browse to the inf file and install.

Keep in touch with your fix,

By the way, migrate to Windows 10 for free : https://www.microsoft.com/en-us/accessibility/windows10upgrade
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
Worked great, went to device manager selected Asus Android Device, then my specific device. Both INF drivers updated perfectly.

Thank you!
[Asus  Eee Pad Transformer Prime] djibe89:
You can rate thread or use thx button ;)
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
So at this point,

The tab reboots and launches the HairyBean TWRP recovery (androwook).

In Windows command prompt, type : adb reboot-bootloader,

I get from my computer, no transformer found when I type adb reboot-bootloader......ideas?
[Asus  Eee Pad Transformer Prime] djibe89:
Good question,

Maybe explore TWRP -> Advanced -> ADB sideload.

Does it help ?

Hairybean recovery is permanent when you launch recovery (is it showing every time or the recovery is switched back to TWRP 2.8.x) ??
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
Thank you for your reply, I discovered that my computer has lost the ADB association in Device Manager. I reloaded the driver and am now on the 90 minute wait!
[Asus  Eee Pad Transformer Prime] djibe89:
Cool, keep in touch
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
Ok new problem...

I do this...in fact i have tried it 3 times..

8 - INSTALL Android 6 ROM

Still on TWRP Home screen, tap Wipe -> Advanced Wipe,

select Dalvik Cache, System, Cache AND Internal Storage

and Swype to force cleanup. Wait till completion. WORKS Fine

Back to Home screen, tap Install, then Storage: Internal Storage and change it to microSD card -> OK.

Select KatKiss-6.0* .zip, and Add More Zips,

open_gapps-arm-6.0-pico*.zip, and Add More Zips,

then Beta-superSU-v2.52.zip and Swype to force install. WHEN I DO this, Tab just goes back to HOME Screen...suggestions??
[Asus  Eee Pad Transformer Prime] djibe89:
And if you install 1 by one, starting with ROM ?
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
I tried that prior. I am thinking there is an issue with my sd card...going to try another.

---------- Post added at 10:37 PM ---------- Previous post was at 10:09 PM ----------

My SD Card had errors, i used another one and flash is in progress!
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
I am a complete moron, i can't get Google Play store or Play Services to work.....ideas?
[Asus  Eee Pad Transformer Prime] djibe89:
That's good to know for future bug reports.

Flash memories are not really long term efficient.

Glad your tab is back to work !
[Asus  Eee Pad Transformer Prime] djibe89:
Hi,

did you flash ROM, then Gapps ?

did you wipe cache after flashing ?

did you have the normal first launch Android setup after 1st boot ?

Did you download the Opengapps ARM 6.0 micro version ?

Keep in touch
[Asus  Eee Pad Transformer Prime] djibe89:
Go to Wipe first, and check System is in Ext4, data and cache in F2FS.

Wipe everything, and flash everything back again.

I don't know very well IsoRec, so i prefer to flash recovery after all the zips, just in case.

Wipe cache again just in case.
[Asus  Eee Pad Transformer Prime] smyrnasurfin:
Once again the problem was me, I was getting insufficient space on system to install Gapps, i picked the PICO version and life is good!!
[Asus  Eee Pad Transformer Prime] Jorell00:
In section 4, there is a sentence

Do MAJ + right clic on folder -> Open a Command Line.

Could someone please explain what MAJ means please.

All was going well until I got to this sentence and now I'm stumped

Thanks
[Asus  Eee Pad Transformer Prime] djibe89:
Shift on keyboard, sry I'm french ;)
[Asus  Eee Pad Transformer Prime] Jorell00:
Merci
[Asus  Eee Pad Transformer Prime] Jorell00:
Finally got round to doing this upgrade, fantastic. Thanks for all your hard work
[Asus  Eee Pad Transformer Prime] cameronx:
Just to say that this guide help me to unbrick my TF201! If after one or two weeks my Prime will work fine I'll try to install KatKiss 7.1 :):)
[Asus  Eee Pad Transformer Prime] djibe89:
Glad you saved it !

Some work left to do ;)
[Asus  Eee Pad Transformer Prime] Nektopoli:
Make sure you're on the CORRECT version of TWRP

NP
[Asus  Eee Pad Transformer Prime] XTCrefugee:
Thank you very much for the guide djibe89, I now have Marshmallow on my TF201 and it's working well.

I did run into two small hiccups in the guide that you might want to correct. In step 6, after you reboot into HairyBean TWRP the device ID of the transformer changes to VID_0B05&PID_4C83. This ID isn't in the version of the Universal Naked Drivers supplied in your "djibe Transformer Prime pack", so Windows fails to install the driver and the subsequent adb command in the guide won't work. I've attached a modified android_winusb.inf to this post (zipped) which includes that ID and so avoids this problem. In step 8 I also for some reason couldn't install all 3 zips at the same time, it just returned to the home screen part way through without any error message (I see other posts here saying the same). Installing them one at a time works fine.

The micro version of gapps also works fine for people who want the apps that aren't included in pico. I think the user that claimed there wasn't enough space for micro may have been confused by the above problem where trying to install all 3 zips fails.
[Asus  Eee Pad Transformer Prime] samandhi:
Thank you for this guide. I have been dying to do SOMETHING with this tablet to make it better, but installing anything less than lollipop just didn't do anything for it (IMO). Everything went very smoothly (albeit very tedious heh).

I can confirm that Micro works perfectly. I was being a DA at first and didn't pay attention to the "pico" part of the file name, and downloaded the stock version. It took me a while to figure out why it was throwing me an error message. So, once I figured it out, I decided to do the math (from the gapps logs), and tried micro... Worked like a charm!
[Asus  Eee Pad Transformer Prime] djibe89:
I updated tutorial for Micro version.

Thx
[Asus  Eee Pad Transformer Prime] cgchris99:
I'm confused on the 2nd part of the nvflash...

2ND PART, NvFlash	----------------

Copy these 7 files in the folder "files/nvflash".

Does this mean copy the 7 files that were previously created in the FIRST PART into this files/nvflash directory?

Want to make sure i"m doing it right before I continue since these backups are the important part if I have a problem.
[Asus  Eee Pad Transformer Prime] imeysailors:
help needed !

hi,

New to this so bear with me please !

I have a stock TF201 which i have factory reset as it was running incredibly slowly.

I have followed your guide and downloaded the required files/folders.

1 ). I can't see where to verify bootloader version. It does not appear in the About Tablet section. All other versions seem correct. How do i verify bootloader ?

2). Hit 7 times on "build info" to unlock the developer options menu. no field "build options" on my tab ?

3). i've downloaded and unzipped djibe prime pack to my windows 7 desktop also downloaded and copied Katkiss and Opengapps.

i should say i have a keyboard attached to my tab, can i use a memory stick instead of mcro sd card ?

4). tried to install windows drivers but get the message " The INF file you selected does not support this method of installation". How do i force the install ?

5). "You can plug tab in USB for driver install." Can you clarify this please ?

I hope i can get past this point and continue with a successful install with your help.

Thanks
[Asus  Eee Pad Transformer Prime] Nektopoli:
Imeysailor, 1st thing is to UNLOCK your BOOTLOADER, using an Asus supplied APK file found here;

https://www.asus.com/support/faq/114102

NP
[Asus  Eee Pad Transformer Prime] djibe89:
Yep.

Make a backup on 1 side.

And also copy files in files/nvflash.

Working on an upgraded tutorial
[Asus  Eee Pad Transformer Prime] djibe89:
Thanks for all your questions, failure makes us stronger ;)

So I'm upgrading tutorial thx to you.

1) To verify bootloader version, shut down tab. Then hold Power + Volume- for 3 seconds and release.

You are in bootloader : on top left corner is written Android (...) epad-10.4.2.18.

To quit bootloader, press Volume- to go over the Android icon, then Volume+ to confirm.

If not V 10.4.2.18, check official updates for your tab before starting this tutorial.

2) in Settings -> About tablet, tap 7 times on build number to unlock Developer menu.

3) Use microSD

4) Did you install Drivers in Windows with Disabled driver signature ?

5) - Windows Vista/Windows 7 :

Go to folder /Universal Naked Drivers 0.72 you unziped earlier (on Windows desktop).

Select file android_apxusb.inf, then right click -> Install.

Force driver installation and wait until a success message prompts.

Repeat operation with android_winusb.inf .

Then plug tablet to PC (USB2 port) to end driver installation.

Keep in touch
[Asus  Eee Pad Transformer Prime] imeysailors:
Hi, and thanks. However cant get past installing drivers in windows. i've tried with driver signature disabled and without. either way get the same message as originally reported.

I have moved on a step (rightly or wrongly !) and have unlocked my tablet but step 4 - prevent brick is giving me problems !

i can power up using power key and volume -, but pressing volume- does not navigate to usb icon or anything else i have tried the -/+ toggle n the side of the tabe and the volume down key but neither moves the curor and the tab just reboots normally after 10 seconds.

i know i cant go any further without the driver install, so any advice you can give would be appreciated

Alistair
[Asus  Eee Pad Transformer Prime] Nektopoli:
Imeysailors, are you trying to install the driver's on a Windows 10, 8 or 7 machine?

NP
[Asus  Eee Pad Transformer Prime] imeysailors:
Hahaha ! I'm currently in Dominican Republic until Canada warms up ! So I don't have access to other computers. My pc is an ASUS all in one. Only one I have here sorry.
[Asus  Eee Pad Transformer Prime] Nektopoli:
What operating system is it running, Win 10/8 doesn't like the drivers

NP
[Asus  Eee Pad Transformer Prime] imeysailors:
Windows 7
[Asus  Eee Pad Transformer Prime] Nektopoli:
Weird, I used a Win 7 laptop, with Minimal ADB to send fastboot commands I have no issue..

NP.
[Asus  Eee Pad Transformer Prime] :
Got through to TWRP, not any further

First of all thank you very much for the effort to put this script on XDA developers. I formally asked ASUS for an Android update but the said there will not be any update anymore beyond 4.1

Here is my issue: My TF201 does not boot anymore. In brief:

•	Got tab connected to PC (Win 7), your installation proposal did not operate, the tab connected itself.

•	Got device to unlock

•	Prevent brick, did part one successfully, could not work the NVflash, TF201 did not connect to PC in APX mode. Driver installation did not work. So I skipped this part.

•	Recovery, read serial number and got into TWRP

•	Bootloader: Did adb devices, Terminal did not return with 012345678ABCDEF recovery. Got to the point that USB icon is gone and recovery is now TWRP

•	Set Filesystem: Did not find the F2FS command anywhere, wipe succeeded

•	Install Android: Doesn’t do it neither with 7.1 nor with 6.0. Get error “no MD5 file found. ApplyParsedPerms: 1setfilecon of /system/lost+found to U:object_r:system_file: s0 failed: Operation not supported on transpo (and many more error codes)

Status: TF201 is unlocked, does not boot anymore and I only get it into TWRP. No chance to connect it to PC since USB is gone. Loaded Katshmallow 6.0 Zip on SDcard – can’t install.

Any help would really be appreciated. The change started off quite well but did not reach the finish line.

Thanks.
[Asus  Eee Pad Transformer Prime] Nektopoli:
Johein, what version of TWRP are you running?

NP
[Asus  Eee Pad Transformer Prime] :
Nektopoli, you point out a potential issue. I only see TWRP recovery (androwook). That's why I can't do F2FS file system. In some youtube videos I see other TWRP versions. Question is with SDcard being the only chance to access the tab (USB is gone) how do I continue from here.

Also, since I am in the "try and error mode" tried to install open gapps and it returned with error code 20 and says I would need Rom: 4.0.4 (SDK15). May be this is a useful hint.
[Asus  Eee Pad Transformer Prime] Nektopoli:
to get to any ROM version 5, 6, or 7 you need to use KANG's TWRP 2.8.5.1 (this one also allows you to flash .IMG files and upgrade to the higher TWRP)

https://www.androidfilehost.com/?fid=95916177934539154

NP

Do you have a TWRP recovery console installed?
[Asus  Eee Pad Transformer Prime] :
Nektopoli, this was the right hint. IT WORKS! :):) I really thought I am at the end and bricked it. As you wrote I installed twrp_tf201t_kang_2.8.5.1 from SDcard and I was able to continue djibe89's script. Now KatKiss runs and I am installing apps.

Thank you very much for your help.

Johein
[Asus  Eee Pad Transformer Prime] Ben22640:
Hi all,

Thank you for your amazing work.

I do want to upgrade my TF201 with this rom but i have a question before starting the script :

- I already installed the katkiss 5.1.1 rom. Do i need to downgrade to vanilla Android 4.1.1 ?

Thanks in advance.
[Asus  Eee Pad Transformer Prime] neochengao:
Just finished the installation last night and I am actually replying using my TF201 now. :)

One thing that I noticed right away is the 2-finger Scroll direction is reversed. (Using the touchpad on Dock)

I searched 'scroll' in the thread and couldn't find an answer.

So, is anyone else seeing this issue?

I would really like to switch the scrolling direction back to 'Mouse cursor mode'. (There isn't an touchpad option in the 'Setting')

Previously, 'Setting - ASUS Customized' is where we can change the scroll direction. But there's no ASUS Customized option in this ROM.

Is it possible to include/install/enable 'ASUS Customized' settings again?

If not, I don't mind to make change to a .conf file using Terminal, if someone can point me to the correct file.

Please share your solutions with me, thanks.
[Asus  Eee Pad Transformer Prime] Nektopoli:
I was able to go from 4.1.2 to 7.1 you just have to make sure you are using the correct TWRP or you could brick.

NP
[Asus  Eee Pad Transformer Prime] T-Rrexx:
djibe89, thanks for this tutorial! I didn't try it yet, but I've an idea to resurrect my old tablet which I don't use for about 2 or 3 years.

Did anyone try to do the steps with USB 3.0? I have no USB 2.0 on my laptop unfortunately.
[Asus  Eee Pad Transformer Prime] Nektopoli:
Yeah my laptop is USB 3.0

NP
[Asus  Eee Pad Transformer Prime] djibe89:
Thank you for your help maintaining this thread.

I have to get back my Asus USB cable before upgrading tuto for TWRP 3 recovery.
[Asus  Eee Pad Transformer Prime] Nektopoli:
If you can get into TWRP now you can flash off the SD card.

NP
[Asus  Eee Pad Transformer Prime] Rookhn:
Hey djibe89, Thanks for great work!