yashsingh1/xdaforums huggingface dataset:
[Transformer TF300T Android Development] [D4v3|R4v3]:
Hey everyone!

A few days ago my girlfriend's TF300 stopped working. After the battery ran out and since she tried to restart it, she got stuck in a bootloop, where just the ASUS logo is constantly appearing. I can't even access Recovery, just the TWRP splashscreen appears and after some time it starts bootlooping again to the ASUS logo.

Before that, the tablet ran perfect for a few days (Nougatella #25). I did a full wipe since I was coming from timduru's KitKat ROM. I did everything like suggested in the first post and I guess I did everything right, since it was already working for a few days.

My question now is, what can I do? What could've caused the bootloop? Any help would be much appreciated!
[Transformer TF300T Android Development] ebonit:
First of all, check whether you are able to reach fastboot protocol or not. The bootloop turns off the device frequently. At this time press Volume down and fastboot protocol should appear. That means you have ADB access via USB and you will find help here: https://xdaforums.com/showthread.php?t=2179759.

However if you cannot boot into either fastboot or recovery, the tablet is bricked for good. I'm sorry!
[Transformer TF300T Android Development] [D4v3|R4v3]:
Thanks! In the meantime I managed to flash the stock rom (as per Buster99). Will try again with Nougatella now, even though I still don't get, why it died like this all of a sudden.
[Transformer TF300T Android Development] ebonit:
You are welcome! Using the Thanks button is greatly appreciated.

You are on the right way. Buster99 is correct. Be happy. That's what I wanted to recommend to you as the next step. Please pay attention on format /data. Too many people mix up wipes and formats... You format only data, not factory reset, not wipe - you format it ext4, then convert it to f2fs. Formatting through Kang TWRP takes 1 hour +. If it went faster you did not format. After that you will have a clean system for N #26.
[Transformer TF300T Android Development] [D4v3|R4v3]:
Thanks again. Nougatella is up and running again :) What didn't happen though was the almost one hour long formatting. It took some time, but definitely not one hour, more like 20-30mins max. Is that really going to be a problem? I did everything as stated in the first post.

Let's see how it's going the next days.
[Transformer TF300T Android Development] scruffy1:
i would posit it is variable depending on how large the storage is on the tf300t

i installed this rom last week, and on a 16gb transformer it takes around 15 - 20 minutes, so i would guess a 64gb one is an hour as a matter of scale :highfive:
[Transformer TF300T Android Development] ebonit:
Congratulations, good job!!!

When you did format /data through Kang TWRP in that two steps like the screen shots below show, it might be OK at all. :cowboy:
[Transformer TF300T Android Development] ebonit:
Deleted!
[Transformer TF300T Android Development] aleMarvel:
hi, i have a big question, this rom has native blue screen protector ? i use my tf300t only for read comics at night..

and what is the best version of this rom for battery drain (remember my usage is only read comics) ?

nougatella or prev version ?

thanks in advance
[Transformer TF300T Android Development] jemora777:
Android 8.0

Dear Tim, First thanks for all your work on 7.1.2 but are we going to get Android 8.0 or am gong to finally retire tf700 and 300?:(
[Transformer TF300T Android Development] residentorca:
The best reply to your inquiry is this:
[Transformer TF300T Android Development] t3chwizard:
Haha
[Transformer TF300T Android Development] alex-ivanov:
Hi guys,

I've flashed #26 a couple of weeks ago, and it is working great, tablet and dock. A really nice piece of work.

I've have just noticed some screen flickering. Does anyone experienced something similar?

I've seen that Tim provided some zips ( related gpu behavior?), for this kind of issue for the MM version, is there any chance that might work with the nougat version.

Thanks for helping

Alex
[Transformer TF300T Android Development] shiboby:
I did this and I do have bootloader ending is 27.5. The twrp backup is titled by twrp as:

STOCK 4.2.1 build 10.6.1.27.1-20130711

The problem is, that even on the newest version of this rom (026), my girlfriend experiences lag. She wants to use the table for school for taking notes, which includes drawing graphs, diagrams, etcs. Unfortunately, the lag makes doing so tricky and annoying. Does anyone have any suggestions on fixing the lag? Any modifications in the performance area of settings? Maybe a kernel that overclocks or has different schedulers? If I wanted to go back to this back up we have to see if it doesn't lag, I would need to flash a different bootloader, right? Does anyone know where I can get the bootloader I would need?
[Transformer TF300T Android Development] Beonico:
Here are some tips to make it run smoothly:

1. Enable the "Developer options" in the configuration menu (7 or 8 times tapping on "Tablet info") and change the option "Backgroundproceslimit" from Standardlimit to max 4 processes.

This setting is unfortunatly not permanent, so you have to set it each time after booting.

2. Install the Greenify app. Let it snooze as many as possible apps.

3. Install the ES task manager. With this you can control the startup process. Disable all apps you do not need to run constantly. It will boost the boottime.

4. Get the BackgroundRestrictor app from XDA labs. With this you can control the allowed backgroundprocesses. Disable all backgroundpermissions except for constant polling apps like Gmail etc.

Doing this, the memory of the TF300 will be kept as clean as possible, such having maximum space for the running app.

To monitor memory and CPU usage on the statusbar you can use the app's 'RAM Meter' and 'CPU Stats'.

Used memory should be inbetween 60 to 80 percent. Above 80% you will notice lag issues.

Doing this, your tablet will be lighting fast :)
[Transformer TF300T Android Development] ebonit:
Congratulations! Your bootloader of the backup ends on 27.1. It's also a right one. So you can flash Kang TWRP and after that Nougatella 7.1 #26 that brings your tablet a new life. :cowboy:

Please go to post #1 and open the install instruction and follow carefully step by step.

Please have a look here: : https://xdaforums.com/sho...postcount=1250
[Transformer TF300T Android Development] shiboby:
Ok, so if I understood ebonit, he wanted me to reflash the newest version of katkiss (although I am a but confused about what that has to do with the backup version of the table). So i decided I would reflash following all the directions again and then try Beonico's suggestion.

I decided to do this while my GF was getting ready this morning so she could try it out in class. Bad choice on my part. I plugged the tablet into the wall, set the data to format, and left the table on the chair to go get some tea. My girlfriend while getting ready tripped over the cord, pulling it out of the tablet and knocking the tablet to the ground. Now it is stuck in a loop where it reboots to twrp, does what you see in the picture, and then repeats. Ican get it to reboot into bootloader.

How should i proceed at this piont? The the tablet ruined?
[Transformer TF300T Android Development] ebonit:
Bad news! If you cannot get either into fastboot or recovery by "Vol down" and "Power on" together, your device is bricked for good, sorry

If the device is not bricked please read here: https://xdaforums.com/showthread.php?t=2179759
[Transformer TF300T Android Development] shiboby:
I can get it to where I see the three icons (RCK, etc.) So I can use fastboot, right?
[Transformer TF300T Android Development] ebonit:
That's good to hear! :good:

First of all beware of using the Wipe icon. Using it will brick the device for good. So never ever use it!!!

However RCK should blink. If so, push Vol+ and TWRP should appear. When TWRP has been booted successfully, you may do what you want. Either go back to your Stock rom backup or install Nougatella 7.1 as already advised by myself.

BTW, do have Kang TWRP?
[Transformer TF300T Android Development] shiboby:
I don't have kang twrp, I have 3.1.0.0. Following your instructions, I was able to break the bootload and got back into twrp. now data is formatting per the instructions in the first post.
[Transformer TF300T Android Development] ebonit:
Good job! Go ahead and your device will awake to a new life on Tim's great CR. :)
[Transformer TF300T Android Development] pe1dnn:
Better use Kang TWRP because that is the only one which is known to work for sure. There might be newer ones that work too but for sure there are newer ones with problems, we have seen many users with installation problems just because they insisted on using another TWRP version. Why risk it? The referenced Kang TWRP works for sure so why not use that one and save yourself a headache and a lot of wasted time.
[Transformer TF300T Android Development] ebonit:
You are right. Kang TWRP is at that time developed by Josh especially for TF300T. It is a very strong tool regarding to format /Data. Sometimes people mix wipe, factory reset and format /Data. However format /Data is the most important thing to prepare a clean install of any CR. The advantage of Kang TWRP in that case is that it does a deeper format that rewrites everything in the Data partition. There are finally no moldy leftovers. Therefore takes format /Data through Kang TWRP usually until one hour plus.
[Transformer TF300T Android Development] shiboby:
so I figured, if installing kang is right, I'll install kang. I followed the link in OP, downloaded kang, changed the name to foo.img, and followed the instructions. It has been sitting at this screen overnight (see attachment). What should I do?
[Transformer TF300T Android Development] ebonit:
Did you replace "foo" with the correct file name (foo = twrp_tf300t_kang_2.8.7.2.img) ?

The install instruction by Josh is here: https://xdaforums.com/transformer-tf300t/development/recovery-twrp-t3046479

As the second possibility there is also the code for terminal. On the other hand you may get the file "twrp_tf300t_kang_2.8.7.2.img" onto your external SD card and flash it through your current TWRP.
[Transformer TF300T Android Development] shiboby:
I changed twrp_tf300t_kang_2.8.7.2.img to foo.img. I'll try doing this through twrp now.

EDIT: and for the record, I had followed these instructions from the link you sent

- Flashing recovery with fastboot.

- Boot tablet into fastboot.

Code:

fastboot -i 0x0B05 flash recovery foo.img

- Replace foo with the file name.

- Once flashed reboot into bootloader.

Code:

fastboot reboot-bootloader

- Enter recovery.

---------- Post added at 09:49 PM ---------- Previous post was at 09:36 PM ----------

So I flashed the img through twrp. Now i get "Unrecoverable bootloader error (0x00000000)". Now what do I do?
[Transformer TF300T Android Development] shiboby:
Sorry for pestering guys, but I am sitting here with a tablet that can't be used. I can get into bootloader, but that is it now that I tried to install the kang twrp image through my previous twrp. Any help would be much appreciated, [MENTION=5472570]pe1dnn[/MENTION] and [MENTION=7106193]ebonit[/MENTION].
[Transformer TF300T Android Development] ebonit:
Sorry, that is really bad luck. I have no idea what could have caused it. You have already had problems before as you wanted to flash Kang TWRP without success.

Are you now able to get fastboot access?

If you can open fastboot protocol by "Vol down" and "Power on" together you should try to get back on stock rom by doing a "Buster99" right away. Please follow that thread: https://xdaforums.com/showthread.php?t=2179759
[Transformer TF300T Android Development] shiboby:
so I should download Version WW_V10.6.2.10 (2013/10/28) from https://www.asus.com/us/Tablets/ASUS_Transformer_Pad_TF300TL/HelpDesk_BIOS/ using the method Buster99 posted (https://xdaforums.com/showpost.php?p=38854053&postcount=3)? Do I need to worry about the bootloader? I have the bootloader ending with 27.5.
[Transformer TF300T Android Development] ebonit:
Yes, you should do a Buster99. However keep calm and read carefully the thread I linked to you. So you will find easily the post by Buster99 https://xdaforums.com/showpost.php?p=44244313&postcount=12. That is your solution when you follow it exactly. :cowboy:
[Transformer TF300T Android Development] shiboby:
Ok, I've done that and rebooted to stock. So now I need to start all over with rooting this right?

Unless I hear from you that I shouldn't do this, I plan on installing twrp and rooting using this: https://xdaforums.com/showthread.php?t=2187982
[Transformer TF300T Android Development] ebonit:
Nope! Why? To avoid any issues please stay on the correct path given by Tim in post #1 without wandering away.

First install Kang TWRP using the Josh's instruction and then format /Data through Kang TWRP. Then change file system to F2FS for Data only. After that install Rom, pico Gapps and SuperSU in one run. Then wipe and reboot.
[Transformer TF300T Android Development] shiboby:
just wanted to say thanks. I got it working last thursday and everything appears to be working well!
[Transformer TF300T Android Development] ebonit:
You are welcome!

Congratulations, good job. Your GF might be satisfied and very proud of you. It's a great step forward compared with the previous stock rom JB 4.2. :cowboy:
[Transformer TF300T Android Development] barkeater:
So, I first want to thank Tim D for all the hard work that he puts into these custom roms. bravo!

I just want to report that I was just about ready to give up on installing this rom on my tf-300t (newly acquired) as no matter what I did it always ended with the wifi not being able to connect to my home network. Finally I figured it out. I have the TF-300T keyboard and when I'd get to the language screen, I'd hit the wifi button on the keyboard. This always ended up not establishing a good wifi connection and I'd start all over. Just before giving up, instead of hitting the wifi button on the keyboard I tapped the wifi along the bottom right of the tablet, and viola! wifi was connected and everything worked as expected. I wonder how many people did the same thing and never figured it out :) Now my tablet flies!!!
[Transformer TF300T Android Development] ebonit:
Why do you wonder? This is a specific forum for TF300T.

Such issue you reported might here furthest be unknown because both buttons on the dock, "WiFi" and "Bluetooth", work with TF300T perfectly to switch them on/off.
[Transformer TF300T Android Development] pe1dnn:
Hello shiboby, I'm glad it worked! I'm between jobs right now so was not paying much attention to this forum. I just read up and at first I thought you had a big problem with the boot loader error.

You see, the boot loader is the first code to run at boot up so if that is messed up then you have a problem unless you have created the anti-brick files (which is described in one of the pinned topics). The anti-brick files ensure you can even recover when everything is messed up, including the boot loader, but they have to be created in advance and are rather technical to create and to apply. If without the anti-brick files the boot loader stops doing it's job then your tablet is a brick, it's the only piece of software that - without the anti brick files - has to keep working all the time, no matter what.

But lucky enough you could get to fastboot in this case and I think the steps you did to recover by first returning to stock are exactly the right steps to do it. Whenever the tablet has unexplainable crashes or acts different then expected during installation or is in an undefined state, this is the procedure to follow.

So thanks ebonit for jumping in and sorry I was not there when you mentioned me. But I could not have done a better job anyway. Glad it worked all right in the end.
[Transformer TF300T Android Development] Frankyg:
Hmmm - I've just done a total clean format, changed file system and flashed everything as directed. Rom runs good, but when attached to the dock the battery drains really bad. From what I can see using the built in battery meter, the tablet wouldn't go to sleep. I closed the lid and next day both batteries flat. I'm charging up again and will try to see if there are any obvious wakelocks, but is there anything that needs configured to allow the dock to work correctly with the tablet?
[Transformer TF300T Android Development] barkeater:
Why do I wonder? B/c the instructions indicate that the wifi should be activated after installing rom and rebooting when at the language screen so as to prevent crash. It says you can enable wifi either via the tablet (bottom right) or if you have a keyboard, you can enable using the wifi button.

I'm just letting others know that the keyboard/dock button may not work. At least in my experience. Whats worse is that when using the dock it appears to enable the wifi (i.e., you get a little pop up message saying wifi enabled, and the little wifi symbol appears on the top right edge of table), but it does not in fact work and causes problems when setting up tablet in that it doesn't connect to wifi or does but then disconnects.

I'm not sure what you mean "Such issue you reported might here furthest be unknown because both buttons on the dock, "WiFi" and "Bluetooth", work with TF300T perfectly to switch them on/off". Language issue? I realize English is not your native language. FYI, once I set up my tablet on nugat, the dock button for enabling/disabling the wifi work as expected.

This information is intended to help others that may be having difficulty connecting to wifi when setting up their tablet upon installing the custom rom and using their dock to enable the wifi. I'm not sure what it is with the information you have issue with? (shrug)
[Transformer TF300T Android Development] RudeboyXL:
He was pointing out that this is a TF300T forum and your problem is with a TF301T so you the issue you are reporting isn't actually a problem with TF300T users and if it was, it probably be here in this thread already

Although, your information will be appreciated by TF301T users.
[Transformer TF300T Android Development] ebonit:
The best way to analyze your Batterie drain, in order to figure out the culprit, would be to install GSam Battery Monitor from the Play Store. Please have a look at post #792 https://xdaforums.com/showpost.php?p=71696433&postcount=792. From there you will be lead to some more ideas how to find a solution. :cowboy:
[Transformer TF300T Android Development] barkeater:
Ah, my apologies. I in fact have a TF300T not 301 as previously described. I have fixed my original post and now understand (sort of) ebonit's post in response to mine.

Well, unfortunately I am still having a lot of problems with this rom and wifi. mostly when coming out of sleep, the wifi is disconnected and doesn't reconnect, although there are times when its connected and while in the process of say playing vid on youtube, it cuts out and doesn't want to reconnect. Sometimes I can reconnect manually and other times I have to do a cold boot. Very frustrating. Think I'm going to move on with this one.

---------- Post added at 11:00 AM ---------- Previous post was at 10:54 AM ----------
[Transformer TF300T Android Development] ebonit:
Thanks, your apologies are greatly appreciated!

To my opinion your above reported problems are not being caused by either the CR or the device. First of all you need Kang TWRP. There is a link in post #1. Secondly you should install Nougatella #26 precisely following the install instruction in post #1 starting with format /data through Kang TWRP. If done successfully, please report whether the same issues you have appear again or not.
[Transformer TF300T Android Development] Dsrocks690:
Hey Tim, I know this is irrelevant to the tf300, but I think it relates to the rom good enough to be posted here. I have been playing around with Katkiss 6.0 back on my Transformer TF101 for a long time now, and Android 7 has some features that I have been looking for for a while. Unfortunately, I can't find what im looking for when it comes to the TF101, because you are the only developer that I have seen that even makes roms for the device anymore, and xposed developers don't usually have the TF in mind. I would be happy to see you release 7 to the TF101, and if I could help in any way I would be glad. The reason I haven't gotten a new TF is mainly because I have no reason to. The tablets are virtually un-brickable, and have exactly what I need as of hardware. The only issue I ever run into is software. Like I said before, I would be glad to help. In the mean time, I would Like to thank you for all you have done for my TF, as you have allowed me to use it like I used to. Have a nice Holiday!
[Transformer TF300T Android Development] timduru:
Couldn't get 7.x to work on the TF101, that's why it's stuck at 6.0. Google and others breaking it more and more too because of the TF101 lack of neon too

I'd suggest that you get a used TF701t from ebay, they run for cheap usually and you'll get a so much better experience.

Not sure how long I can maintain it even for the TF701 though,

as google makes it more and more difficult by breaking things all the time.

They don't even push security support to 7.x anymore...

which is a pain to backport from 8.x, as some of it doesn't apply to the 7.x code

On a side note I got a pixelC too now, maybe I'll try to build a 8.x Katkiss for it, that might help to grasp a few things on 8.0 for the TFXXX.

But life has been a pain lately, so I can't dedicate as much time as I'd like to that anymore.
[Transformer TF300T Android Development] ebonit:
Dear Tim:

When pain knocks on the door - wise ones breath deep and say:

"Come in. Sit down with me!

And don't leave until you've taught me what I need to know"

by MOMASTERY

Thank you very much for your moving "on a side note". Please take as much time as you need for yourself. The TFXXX can wait for Oreo. Nougatella #26 is still well running. Take care of yourself and have a Merry Christmas!

All the best,

[MENTION=7106193]ebonit[/MENTION]
[Transformer TF300T Android Development] Dsrocks690:
I figured that thats what happened. Thanks for responding. I will definitely consider getting a tf701 sometime. I played around with my friends pixel c, and its amazing. I hope your enjoy it.
[Transformer TF300T Android Development] walttheboss:
I have had the same problem. I disconnect the tablet from the dock when not using. Never figured out a solution.
[Transformer TF300T Android Development] ebonit:
As far as I can remember at that time you did analyze your Batterie drain with the GSam Battery Monitor. The result that came up have been that in your case the biggest offender was the SyncLoopWakeLock for 2867 wakeups!

It was a good recommendation. So I suggested in post #1314 to him to go the same way. I didn't know that you never found a solution, sorry!

However there was also a recommendation by [MENTION=3550630]residentorca[/MENTION] for you in post #707 :

"Not sure if this will help your situation but I've experienced extended battery life using this app with Aggressive Doze mode enabled:

https://play.google.com/store/apps/d...nco.doze&hl=en "

BTW, I did use Aggressive Doze successfully to balance the battery drain on my tablet! Have you ever tried it?
[Transformer TF300T Android Development] desireleß:
I have had the same issue and did the same to solve it...
[Transformer TF300T Android Development] walttheboss:
Thanks for the reply. You do a great job on this forum. I tried all kinds of things. Including everything you suggested.

I work and live in China. Google is blocked here. Next time I install it will be without gapps. That will remove Google from incessantly trying to sync.

Other possibility is a strange variance in hardware as we know this tablet has quite a variety of parts. Next week I'll install again with and without gapps to see what happens.