yashsingh1/xdaforums huggingface dataset:
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
1. Flash ASUS Transformer Pad TF300T Firmware: V10.4.2.20 Only for US SKU (Android 4.1) to get Stock Recovery

2. NO

-Flash ASUS Transformer Pad TF300T Firmware: V10.6.1.8 Only for US SKU (Android 4.2)

3. NO

-Flash ASUS Transformer Pad TF300T Firmware: V10.6.1.15.3 Only for US SKU (Android 4.2)

4. Flash http://techerrata.com/file/twrp2/tf300t/openrecovery-twrp-2.5.0.0-tf300t-4.2.blob to get TWRP Recovery Back

5. Flash ROM which is based on 4.2.1 with the 10.6.1.15.3/10.6.15.3 Bootloader

2 and 3 are updates with stock recovery not flashes.

Example: of update with stock recovery

Update from 10.4.2.20 to 10.6.1.8

Download 10.6.1.8 and unzip once. Place the remaining zip on your internal sdcard. Reboot tablet and look for update triangle in notifications. Accept the update and stock recovery should handle the rest.

Now use the same procedure for 10.6.1.15.3.

Download 10.6.1.15.3 and unzip once. Place the remaining zip on your internal sdcard. Reboot tablet and look for update triangle in notifications. Accept the update and stock recovery should handle the rest.

Then use 4 and 5.

Going back from 4.2 or 4.2.1 should be to 10.4.2.20 with stock recovery not a flash.
[Transformer TF300T Q&A, Help & Troubleshooting] gerard0986:
But it's still the same files for 2 and 3 right? From the thread I first linked. Just...updating instead of flashing?

Otherwise, I think I got the gist of it. I'll try it out soon and hope for the best.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
Yes the same files are used but twrp only gets flashed after you are on 4.2.1 - this way we have stock recovery for upgrading.

Good Luck!
[Transformer TF300T Q&A, Help & Troubleshooting] happybeat:
Hi, I just got a TF300t. I fixed the touch and lcd screen and everything works. Then I got the update for 4.2.1 so I did that and now ALMOST everything works BUT it will not charge. I saw more people with the problem and saw that you have to flash back to 4.1 but I never did this with a Asus. Is there a other way? When I connect the tf300t to my laptop it does see it but it will not charge. When I connect it to the wall it does not charge. Please help?

Thank you
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
I first have a question. Is the charger the stock asus charger? Most others will not work because the voltage is lower than required (15 volts) this also means no charging from the pc.

I have never had to downgrade to clear this issue.

Settings/Backup & reset/Factory data reset

this will wipe user apps and data

If this fails let me know and I'll give you another step.
[Transformer TF300T Q&A, Help & Troubleshooting] happybeat:
I have a original asus charger. And I tried the factory settings. Now I noticed it DOES charge but reaaalllyy slow. But it charges. I think, after reading allot, its a glitch in the new 4.2 update to JB. It does'nt show it is charging but it does. I connected it to my laptop and after a while it went up from 54% to 56%. The machine still says it is not charging but it does. :confused: Hope they make a patch for it...
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
Everyone is now expecting an update (4.3). Maybe that will happen soon and fix your problem.

Good Luck!
[Transformer TF300T Q&A, Help & Troubleshooting] rlanza1054:
Hi,

Its been sometime that I've asked a question about my Asus TF300T tablet.

I just read about Android 4.3 on the old version of the Nexus 7 and that the best change was the inclusion of 'fstrim' for the file system.

It supposedly fixed a speed issue.

I just got an OTA update for the Asus TF300T but I'm not sure what it upgraded.

Does anyone know if we get this 'fstrim' file system on the Asus TF300T it will help with the long plagued lagging.

I gave up on rooting my TF300T and just run regular stock.

Does anyone know if Asus will be providing the 4.3 as a upgrade for the TF300T?

Thanks!

Rob
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
fstrim: I don't find it in the latest Asus update. See LagFix(root required) in the google android market(play store).

4.3: I have seen several references that the tf300 will receive 4.3 but none provided facts to support that opinion.
[Transformer TF300T Q&A, Help & Troubleshooting] sbube:
hello guys,

I just bought a TF300TL, and I can not understand what rom and guides are compatible with this tablet, because I only read for the Model T and TG, not TL, can you help me?

thanks
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
I'm not knowledgeable about the TL I tried a couple of searches and found some info. You'll have to do a little reading to get what you wish.

Try this link.

To get this I went to q&a tf300 selected advanced search titles only and searched for tf300tl.

Maybe this will help some.
[Transformer TF300T Q&A, Help & Troubleshooting] meetnewmrindia:
I received my refurbished TF300 from A4C and I ran into following issue. since it is a refurbished unit, I have not received any manual - just the tablet and the wall charger. The problem I am facing is that I cannot charge the tablet with the charger I got. If it is turned off and plug in the charger it will boot the tablet. I go to the status screen of the battery and it says not charging. If I use the cable as USB and connect it to the PC, Win7 will recognize as TF300 tablet. What could be the issue? Please help
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
TF300T-Manual

It is normal for the tablet to power on when plugged into the charger or the pc. The Asus charger is 15 volts not the general 5 volts.

Plug into either and power off if you wish and it may charge slowly. Several have reported a slow charge even when powered on under your conditions even if showing not charging.

Good Luck!

Welcome to XDA!
[Transformer TF300T Q&A, Help & Troubleshooting] meetnewmrindia:
sixth ishadss

tobdaryl,

Thanks a lot for getting back to me. My issue is when the tablet it powered on and if I plug in the wall charger I don't see the icon on the battery saying its charging. So how long would it take for it to charge normally and not when it is powered off? And I can see the percentage going down slowly as well. I will try the method you have suggested tonight and will check whether it charged the tablet or not.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
I'm sorry I don't have any details as I use the Asus charger. This info comes from others as a correction to my statement that the tablet would not charge with your conditions.

All I can say is try and see what works for you.
[Transformer TF300T Q&A, Help & Troubleshooting] meetnewmrindia:
Thanks again.. I hope that the charger i got with my refurbished unit is the ASUS charger.. I will ask the seller to see if that is the case.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
The Asus charger states 5volts @ 2amps or 15volts @ 1.2amps meaning it should also charge normal 5volt units.

In the manual only 15volts is mentioned for charging.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
What you describe with your directories is correct for 4.2 rom such as cm10.1. The reason this is done is 4.2 is multi-user and if you had created a second user that directory would have been 1 instead of 0 for the first user. I hope that helps with why.

My experience is you can use a file browser and copy and paste from the 0 directory to your current. This of course assumes you are now on some other rom that is not 4.2. At that point you can delete the 0 directory and recover the space.

If you are on a custom rom or plan to flash one don't worry about root as it is included in all custom roms I have flashed for this unit.

Tell me what your current rom is and in the mean time I'll search for root in case you intend to stay on stock.

Since I got back before you I'll give you the root information as well as everything else.

P { margin-bottom: 0.08in; }A:link { } This thread is located in Developers

[INDEX][04 Feb 2013]TF300T & TG-INDEX of Roms/Dev Guides/Kernels/Recoveries/etc.

You will find root methods and almost anything else you could want for our tablet. Don't to hit thanks while there as this took and still takes much time.

Do not stop at post one if you don't find what you wish as it is several posts long and each is different but very useful.

Good Luck!
[Transformer TF300T Q&A, Help & Troubleshooting] Peopie:
Thank you for your quick help!

I think I might have gotten a bad or incorrect rooting zip, I found another one and was able to flash that one successfully.

I am running on:

Android: 4.1.1

Build number: JRO03C.US_epad-10.4.2.20-20121228

I should be on the original ota jellybean update from asus

I am not sure where i can find the firmware that many of these pages are talking about, but I have a feeling it is the build number

About the cutting and pasting, would I do that with a computer, or an app on the tf300?

I would guess I would need a better file browser than the stock file browser in order to move such files to a different directory.

Thank you again!
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
The link I provided above has all of the asus firmware (both older and newer) in the first three posts. Just be sure to choose for the tf300t - the reason I mention this is there are downloads for the tf300tg and tf300tl in these three posts as well. You are on the latest 10.4.2.20.

If I can help further just ask.

Good Luck!
[Transformer TF300T Q&A, Help & Troubleshooting] funnel71:
According to the change log, the latest version of twrp has a root checker and option to install if you don't. Perhaps try that?
[Transformer TF300T Q&A, Help & Troubleshooting] Peopie:
Thanks for you help guys!

I was able to get rooted on the original stock asus rom, but I then started experiencing strange behavior from my tablet, such as the screen spazzing out and showing multiple bars and lines and changing to a bright pink/white static-ey image with a ghost of what was previous on screen (This appeared right after I unlocked my tablet, and I still saw a faint image of the lock screen UI under the mashed up static). This also seemed to happen randomly, and would usually show horizontal lines along with the static-ey image.

I tried flashing to CleanROM Inheritance 3.4.1, and that was successful I believe

now somehow, I think most of my data is somehow lost, but I don't understand why because I was able to access my old data and use an image for my backround after I flashed to CleanROM, but now there is nothing.

When I plug it into my computer it says that 25.3 GB free of 27.1 GB

I would assume that is the OS?

I'm not really sure what I am looking to do, but more of see if there is anything I can do to figure out how I lost all my data or if there is a way to retrieve it.

I am also curious as to what can cause such strange screen appearances which I described earlier.

Anyways, thank you very much!

Every one here has been very helpful!
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
If I understand your screen issue disappeared when you flashed CleanRom?

What wipes did you use when you installed cleanrom?

I'll try to look at cleanrom to see if it clears data.

It looks to me cleanrom changes the data partition from ext4 to journal_data_writeback (ext2 ??) and if I understand correctly security of data is sacrificed for speed. I certainly can't say this is your data issue but it is the only thing I can find that relates.

I'm sorry this isn't much help but is all I have.
[Transformer TF300T Q&A, Help & Troubleshooting] Peopie:
Oh yea, I'm sorry I forgot to mention that, but it did seem to stop after I flashed cleanrom

Also, I think that last weird thing my tablet did before I flashed it to cleanrom, was that it got into a boot loop on its own, I connected it to my computer and used adb to reboot into recovery, and then it proceeded it boot normally, oh, actually, now that I think about it, I believe thats when the weird screens started happening.

I did a dalvik/cache wipe and factory reset, before flashing cleanrom, and the cleanrom had its own installer which cleared the caches

but when I first booted into cleanrom, I still had all of my files and pictures and stuff, and then sometime later that day everything dissapeared.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
I'm sorry I can't put my finger on anything absolute to cause your data loss.

I keep as little as possible on my internal sdcard. I option everything I can to use my external sdcard for data.

Once a week I copy everything else to my external with a file browser. ES File Explorer works well and is free. It will also backup apps but not data, uninstall user apps, etc.

Before I do any flash or other major change I always backup apps and data, and any files on my internal that are important. Then I use twrp to backup my current rom.

I use Rom Toolbox Pro as my root browser. It works well has many features and will backup apps, data, and Play links. Because it does so many things well it is very dangerous if misused.

Many, many swear by Titanium backup for apps and data backup.

Good Luck!
[Transformer TF300T Q&A, Help & Troubleshooting] University of Pi:
Unrelated FAQ type question;

any non-stock based roms that support the dock properly?
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
I can only speak from my experience.

I have not found anything (non-stock) that provides complete support.

For that reason my go to rom is stock 10.4.2.18. I find less lag and a better all around experience.

Beyond that my preference is JB Hydro (stocked based) smooth and everything works properly.

I wish I had better news but that is my experience. I have noticed a couple of posts recently concerning remapping the keyboard but I didn't notice anything that made me jump in and try the suggestions.

Good Luck!
[Transformer TF300T Q&A, Help & Troubleshooting] ningen90:
Some sensors are not working properly

Ok guys here is my problem.

Ive recently discovered that my gyro sensor(i think) is not working properly, glowball app doesnt seem to receive any input from the orientation sensors, and changing the tablet's orientation have no effect on the ball what's so ever. Now i remember this app working perfectly fine when i first got my tf300, as it came preinsalled, but i didnt really use it (it's just a tegra3 benchmark anyway) , so after a while, I rooted the device, unlocked the bootloader and installed a custom rom (surdu petru stock based rom) , i didnt really know about the sensors not working till i installed temple run 2 , which is not working, so i checked glowball and its not working, installed androsensor box, and found out that magnetic field sensor and other one (cant remember what it was) are not working too , a couple of days ago i installed an aokp based rom (4.2)and the sensors are still not working , checked with other users who flashed the rom and they have no problems

So…… whats the problem with my tablet, sorry for the lengthy description and thanx in advance.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
You're not alone with this problem. My tab has had this problem since day one. On the rare occasion that my sensors work they are reversed and require extreme tilt to register any input.

I researched this two or three months ago and concluded that some units must have quality control problems in this area. There are numerous others with the same issue who have not found a method to resolve the problem.

A couple were able to exchange their tabs but I was not so lucky.

I'm sorry to deliver the bad news but if you have this issue on stock roms there is little help. At the moment I can't flash anything except stock so I can't test with aokp.

I'm sorry!
[Transformer TF300T Q&A, Help & Troubleshooting] ningen90:
The problem is that i'm pretty sure the sensors were working on the stock rom, so don't think its hardware related, maybe missing drivers or something, but its pretty annoying that i cant find anything on this matter, anyways,

Sorry for your tab, i feel ya :D, and thanx for the reply.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
Since your sensors worked properly with stock give surdu petru a shout in his rom thread. He is very involved with this unit and has begun to answer questions that are not related to his work.

An all around nice guy. I'm sure he will try to help if he can.

Thanks for the kind reply.
[Transformer TF300T Q&A, Help & Troubleshooting] ningen90:
Yeah, i'll try and ask him, thanx for the help
[Transformer TF300T Q&A, Help & Troubleshooting] rbellis:
I got the bootloader unloack with no issues. I tried to download the SDK but it is telling me I need some java JDK. I thought I had installed the right one to the right folder but it is still telling me that it is not installed and will not install the SDK.

PLEASE HELP!
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
What operating system are you using? windows, mac, linux
[Transformer TF300T Q&A, Help & Troubleshooting] rbellis:
I am on Win8 64bit. Thank you!
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
Try this link and choose windows x64 - download and install.

Update me if you need more.
[Transformer TF300T Q&A, Help & Troubleshooting] rbellis:
I am still getting the same error message when I try to install

.

I have installed it twice now. The 1st time I installed it to whatever it installed by default. This did not work. I then installed to the program files/system32.

this appears to be the needed location according to the error message.
[Transformer TF300T Q&A, Help & Troubleshooting] meetnewmrindia:
I can confirm that if the screen is off the tablet does charge and it is quite fast not the usual 3% in an hour. But when I am using the tablet (light use such as reading website) I don't see the battery icon on the bottom saying its charging. If I go to battery status under settings it says "not charging" and I don't see any LED's blinking on the power button. I can see the battery percentage dropping which shouldn't be the case. I am attaching the picture of the charger that I have received with the tablet. Does anyone know what is the reason for tablet to do so? - that it charges when screen is off but doesn't when tablet is in use? From what I have found it probably means two things 1) There is some kind of code in the fw that detects the charger and the fw is not detecting my charger or 2) The output voltage is not enough. Is it true? The vendor has agreed to send me replacement unit but I am afraid I will run into this issue again.
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
The specs on our chargers are alike.

If the new charger is no different I would go to settings/Backup & reset/Factory data reset before considering a new charge cord. You will loose all apps you installed. You may want to use App Backup in the app drawer first. - one catch app backups made this way will only restore on the same version of firmware used to make the backup
[Transformer TF300T Q&A, Help & Troubleshooting] meetnewmrindia:
Thanks tobdaryl.. I will try that once I receive the new unit. May I know the reason behind doing so? I don't have any apps installed so I am safe that way..
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
Sometimes doing a factory reset will correct charging, screen and a variety of other issues.

Doing a factory reset reloads the installed firmware. This is said to present you with an as new in the box tablet. It has cleared a variety of ills here on xda.
[Transformer TF300T Q&A, Help & Troubleshooting] eddywebs:
how to revert to stock kernel

quick question I am trying to revert to stock kernel, would flashing stock firmware do the job ?

or do we need to flash the stock kernel separate ?:confused:
[Transformer TF300T Q&A, Help & Troubleshooting] Sib64:
You can use stock kernel separatly.

If you use stock firmware, you get back to stock completely
[Transformer TF300T Q&A, Help & Troubleshooting] andoryuu3:
I think this may be a good question to add to the FAQ.. I should be able to get this done without any problems, but as a cautionary step I still need to ask for a little assistance.

It's very clear to me that the jump from 4.1.X bootloaders to 4.2 bootloaders has caused plenty of bricks.. So let's see if we can get this properly visualized and understood.

My current tf300t setup:

ROM - Some PA ROM that reports being based off of Android 4.2.1

Recovery - TWRP 2.4.4.0

Bootloader - Unlocked, "Android cardhu-user bootloader <1.00 e> released by "US_epad-10.4.2.9-20120809" A03" (*Somehow* I feel like only US v10.4.2.9 is necessary here)

Clearly, doing this out of order is going to result in a brick as Asus offers less safety nets for our "small mistakes".. So I'm going to break this down a little bit. From what I understand, here's my generalized roadmap:

1) Match the bootloader version with the corresponding stock recovery version. (and this is accomplished by flashing a stock firmware... Clairification needed: "stock firmware"... same as "stock rom"?

2) Climb the update ladder to the JB version desired using STOCK recovery and NOT TWRP/CWM

3) Reunlock using Asus Unlock Tool v8

4) Install TWRP for 4.2 bootloader (as opposed to the 4.1 and ICS bootloaders)... Does the version number NEED to correspond to the version number of the bootloader, or just any TWRP for 4.2 bootloader on any version of the 4.2 bootloader? You may be able to understand my confusion here if you're familiar with the first post of the tf300t CROMi-X 4.7.0 thread. I understand it may just be a requirement of the ROM in question.

5) Flash custom ROM that matches your Bootloader/Recovery

Any and all help appreciated. If I can get this down solid, I'll be updating the newbie friendly guide I created and credit everyone appropriately. :highfive:
[Transformer TF300T Q&A, Help & Troubleshooting] tobdaryl:
Sorry! It is not an easy subject to explain. I had thought my table above would make bootloader and stock rom firmware version vs recovery (twrp) version plain.
[Transformer TF300T Q&A, Help & Troubleshooting] demoneit:
Asus tf300tl bricked

Hi to all from a new user

Your help has been useful to me several times but I can not solve this last problem.

I have an Asus tf300tl: after unlocking the bootloader and installed the cwm the terminal will start cwm mode only.

The I cwm release Cache errors in the mount, partition, system, sd etc. In addition, the terminal does not start in download-mode and therefore can not act fast-boot mode.

With adb I can get shell access and view the content. With adb-push can not install a *. Zip and when I enable sideload from cwm communication between the PC and the device stops.

I apologize for my English