[Q] How-to restore a TF300T with the newest firmware that is not starting up - Transformer TF300T Q&A, Help & Troubleshooting

Dear guys and girls,
I have a problem. Since 2 days my tf300t is for some reason not starting up anymore. The start screen does not go away. Before it worked like a charm. I have tried almost everything, I can think of. As far as I know the latest firmware is installed. The problem is also that the tablet isn't in developer mode. So my options are limited afaik to fastboot. I have installed the naked drivers version 0.73. But windows is saying that the device is not started. Only fastboot is started as device. I have tried to reinstall the firmware by usb, but to no avail. It sends but doesn't write... I have drained the battery to zero level. Can anyone help me with this? What am I missing?
<>< A Dieu
Jaco Oversluizen

I'm also having this same issue. Tablet was working fine and then froze up. After rebooting we are now stuck on the Asus screen with the circular logo going. Waited over an hour with no change. Tried to boot into recovery and recovery crashes and gives me Error! This is a stock tablet that hasn't been unlocked or anything.
Update: Did a Data Wipe and the device rebooted and came up. Doing all the updates again. Hopefully it wont mess up again.

So you have an unlocked bootloader ?

Related

[Q] TF101 won't boot

Ok, so I gave my wife my old TF101 when I got the 701. I reflashed it with a fresh install of timduru's KatKiss ROM. It's been running reasonably well aside from random reboots. all of a sudden, yesterday it stopped booting up at all. It shows the normal Asus flash screen, but then when it shows the OS specific one (in this case, the weird little picture of timduru's meerkat thing...) it's just flashing random little bits of tha tpitcure all over different parts of the screen an some sort of random flickering and never going past it. I can still boot to the recovery normally, so I wiped it and tried reflashing the same ROM and ended up with the same thing. Tonight I plan to try to download the newer version of the ROM and try, but I fear I may be SOL. Any other suggestions?
Have you tried wiping everything 100% in TWRP Recovery?
Including Data etc ?
*Detection* said:
Have you tried wiping everything 100% in TWRP Recovery?
Including Data etc ?
Click to expand...
Click to collapse
Yes, I did that. Still no good. I'm pretty much screwed, aren't I?
If your TF serial number starts B6O or lower, some B7Os too, then it is SBK1, which means you can use NVFLASHable ROMs - they delete and remake every partition on the TF and reinstall stock ROM - you could try that in case the sdcard is corrupt
stuck at TWRP screen, failed to flash bootloader
Hello everyone,
Not to thread jack but I have a similar problem and instead of opening a new thread I decided to revive this one.
I have a similar problem that my TF101 has been working flawlessly for many years. It is rooted and was running 4.3 ROM. As of yesterday, it just won't boot at all. It has been stuck at the NVidia screen and just sits there. I tried to enter recovery mode by using volume(-) + power and the unit presents the TWRP logo and just loops as well by showing the TWRP screen (3 seconds) then going blank for a second then showing TWRP screen again in a cycle. I downloaded and tried Easyflasher and Brks toolkit and nothing can complete the flash. I can enter MTP mode which the computer can see the device but the manufacturer name and model are not-recognized. I can also enter APX mode but while trying to flash anything I get an error message (error, cannot flash bootloader) and the computer dings (device disconnects).
I have been trying for a day now and have run out of ideas.
Has the unit finally bit the dust? Does any one out there have any more ideas or suggestions on what to try next?
TIA for any help provided.

[Q] Asus TF300T boot loop CM11/OMNIROM logos

(backstory) Hi, ive had an Asus TF300T, for about 3 years now, unlocked, rooted it pretty early on... cycled between cyanogenmod and omnirom quite a bit, without really any major issues. Until today, i was running Cyanogenmods latest nightly build (CM11 Nov 5 2014), it worked just as any other nightly does a few bugs here and there, but nothing major and i hadn't done any major flashing or modding to the device. On my home from university, I turned my tablet off. And when i got home i plugged in the charger, and just as always the tablet turned on, showed the stock Asus screen, then changed to the Android boot animation... the animation then suddenly froze, and the device went into a boot loop... continuously... I dont know whats weong with it... tried to do a factory reset, i tried reinstalling the ROM, tried installing omnirom, but that got stuck on the OmniRom animation...
Im running Asus build 10.6.1.27.5
I had TWRP v2.7.0.1 installed but have now no longer works
id really hope there is a solution for this!
Thanks!
Edit: I dont know why, but when i try using fastboot or adb, the device isnt recognized. It doesnt show up on device manager either. I dont know if its the cable cause i bought it new, it says its can sync data, or a faulty charge/sync port....
razr9622 said:
(backstory) the tablet turned on, showed the stock Asus screen, then changed to the Android boot animation... the animation then suddenly froze, and the device went into a boot loop... continuously... I dont know whats weong with it... tried to do a factory reset, i tried reinstalling the ROM, tried installing omnirom, but that got stuck on the OmniRom animation...
Im running Asus build 10.6.1.27.1 (I know that theres a newer version 10.6.1.27.5, but when i try to flash it, the recovery says error and fails)
I have TWRP v2.7.0.1 installed but have now no longer works
id really hope there is a solution for this!
Thanks!
Click to expand...
Click to collapse
^THIS!
I was just to open a similar thread, then i saw your post. I join your request for help!
A month ago i have done a favor to a friend by unlocking his tf300t and installing CM11 on it. A few days ago he comes to me with this problem. I've tried anything but still no success:
- restore a backup done before flashing CM11 --> restore ends correctly but the problem remains
- flash a rom (CM11 and OmniRom) --> flash ends correctly but the problem remains
- flash the stock firmware found on asus website (WW_epad-user-10.6.1.27.5.zip, the SKU is correct for my version) --> the flash process stuck (i had to force restart the tablet after almost 2 hours of "flashing")
Since the boot animation changes according to the rom, i suppose the flashing process works. But the problem remains: after a few seconds the animation freeze and the device restarts, in loop.
Informations on the system:
- build 10.6.1.27.5
- TWRP v2.7.0.1 (working!)
- adb works (i managed to set /data as rw and push the .zip file to flash)
- fastboot should work
Please help! I feel a bit responsible for bricking my friend's device
SOLVED!
Finally!
I had already tried this method, before requesting for help, but the first time didn't worked... I don't know why this evening the tablet decided to collaborate:
http://forum.xda-developers.com/showpost.php?p=44244313&postcount=12
That worked for me! :victory:

"Softbricked" Nexus 5, boots to bootloader but windows won't recognize it.

Hello,
I have an "ex-rooted" nexus 5 that I just yesterday tried factory resetting, however, it won't do that and just stays stuck at erasing for 15-30 minutes before the broken android shows up. Now, when I say ex-rooted I mean that I have either uninstalled supersu with the supersu app, or I've tried just flashed over the old rom. Alas, I have no recovery at all, when I choose recovery from the bootloader the screen goes black and it goes back to try erasing the phone.
I would have just flashed it, but this is where my problem comes in. My phone doesn't show up on my computer at all. I have the right drivers and such, even tried different ports and cables.
Anyone have any ideas? Sorry if I'm ****ty at explaining my problem
I'll be eternally grateful for any help whatsoever
Recovery it what it goes to in order to FDR so you must have a recovery apparently. You can't boot up at ALL I am guessing?
Sent from my Nexus 5

Unbrick ZenPad Z170CG

It's stuck at the ASUS logo. A friend gave it to me to fix since it wouldn't download apps from google play which led me to believe that it had software problems so I decided to update it. It's worth noting that it kinda bricked itself after factory resetting before the current brick. It wouldn't boot and it was stuck at the ASUS logo, but somehow it fixed itself after several reboots. After it fixed had itself, the problem with not being able to download apps was still present. One time I turned it off and it wouldn't turn back on. I tried to go into recovery, but then I realized that the recovery was gone too. It was stuck at "no command" screen, so the only way to modify the files was through the bootloader. I found a firmware zip with the .bin files in it, so I flashed them one by one and I got the recovery back. Installed the update via a good sd card and it was stuck at the ASUS logo. I sideloaded it through recovery and got the same result. I also tried sideloading it through the bootloader which also gave me the same result. I'm all out of options I can think of. If anyone has any idea, please share it.
Thanks in advance!
Hi !
I see that you have posted here as well https://forum.xda-developers.com/an...oot-method-t3311752/post71149052#post71149052 and that`s the best section from where you can receive more help , keep an eye on it
Good luck !

TF300T rebooting... Help!

Hi everyone.
I have a ASUS TF300T for over 10 years now. It is an awesome tablet and the last 4 years it has been my daughter's playing buddy. Around 6 years ago, as the performance of the tablet was horrible, I started to inform my self of what I could do to have a usable tablet again and that was when I found out about custom roms. So I did my research, unlocked the bootloader, installed TWRP bootloader and flash Timduru's ROM to it. It worked like a charm. Great performance and usability for the almost dead (thanks to ASUS) TF300T. Around the time Timduru's last ROM for this tablet was released, was also the last time I upgraded the TWRP to the latest version which I don't remember its version. Now to my problem... Last week my wife told me she couldn't get the tablet to work. As I looked at it, what I saw was the ASUS logo (with the device is unlocked at the top left corner) and then the Timduru's logo comes up and hangs, after a while it reboots to the ASUS logo again and just does everything the same over and over again non stop, can't even shutdown the device. If I hooked the usb cable to a PC it does the same but after 6 reboots the device shuts down. Then I tried to enter recovery so, volume down and power it on, the menu comes up as normal but now I tried to enter TWRP. Splash screen appears and reboots to the ASUS logo again. Then Linux pinguins show up at the top left corner and enters again to the TWRP splash screen and reboots. Now that's where I'm stuck at. Can't do anything. Volume down and power up don't do anything either, it always goes straight to TWRP recovery and reboots again. In the PC the Android device shows up until the tablet restarts again. Also tried adb but it always stalls or gives some strange info until the tablet restarts again. So my question is... I anyone able to help me restore this back to funcionality? My daughter would really appreciate your help guys! Thanks!
Tuzy said:
Hi everyone.
I have a ASUS TF300T for over 10 years now. It is an awesome tablet and the last 4 years it has been my daughter's playing buddy. Around 6 years ago, as the performance of the tablet was horrible, I started to inform my self of what I could do to have a usable tablet again and that was when I found out about custom roms. So I did my research, unlocked the bootloader, installed TWRP bootloader and flash Timduru's ROM to it. It worked like a charm. Great performance and usability for the almost dead (thanks to ASUS) TF300T. Around the time Timduru's last ROM for this tablet was released, was also the last time I upgraded the TWRP to the latest version which I don't remember its version. Now to my problem... Last week my wife told me she couldn't get the tablet to work. As I looked at it, what I saw was the ASUS logo (with the device is unlocked at the top left corner) and then the Timduru's logo comes up and hangs, after a while it reboots to the ASUS logo again and just does everything the same over and over again non stop, can't even shutdown the device. If I hooked the usb cable to a PC it does the same but after 6 reboots the device shuts down. Then I tried to enter recovery so, volume down and power it on, the menu comes up as normal but now I tried to enter TWRP. Splash screen appears and reboots to the ASUS logo again. Then Linux pinguins show up at the top left corner and enters again to the TWRP splash screen and reboots. Now that's where I'm stuck at. Can't do anything. Volume down and power up don't do anything either, it always goes straight to TWRP recovery and reboots again. In the PC the Android device shows up until the tablet restarts again. Also tried adb but it always stalls or gives some strange info until the tablet restarts again. So my question is... I anyone able to help me restore this back to funcionality? My daughter would really appreciate your help guys! Thanks!
Click to expand...
Click to collapse
Hi there, I'm sorry for my late replay, because I'm not often been looking up here. Here is my advice:
The only way to get out of the loop you should do a "Buster99" to get back on Stock Rom Jelly Been 4.2.2. After that you'll be able to install the CR again. Therefore you should look up all my posts within this thread over the years. There you'll also find the right links leading to Buster99. Don't forget you need "Minimal ADB and Fastboot" to do a Buster99.
All the best and good luck, ebonit
PS: Here is the link to the Buster99 solution: https://forum.xda-developers.com/showpost.php?p=44244313&postcount=12

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