Welcome to the forum.
Sounds like you'll need to download the firmware for your TF from the ASUS site and reinstall it.
There is a guide that explains the process here...LINK
Reading online I found out how to cold-boot the tablet and when I go to wipe the data it says, "Key Driver not found..." Booting OS, which lead me into the device not rebooting. I do not want to send this in if I can recover it as I was hoping to take this tablet on a trip this weekend (long plane ride). Does anyone have an ideas? Is there a way I can put a rom on an sdcard and overwrite what is there? I do want to run the stock rom and cant find it on the ASUS website. Does anyone have a stock asus rom I can use to fix this sucker.
Follow the instructions that Mike linked to using the correct version of your firmware (WW, US, CN, TW) from the page below.
ASUSTeK Computer Inc. -Support- Drivers and Download ASUS Transformer Pad TF300T
Problem is the directions are assuming I dont have an issue. Meaning I can't boot the device to tap on anything.
So After I insert the MicroSD card with the firmware I can't get to the exclamation mark at the bottom of the main screen, I'm still stuck in a endless boot cycle.
I've tired to hold down the <down> volume button and power button thinking maybe it would boot off the SD card but, it doesnt seem to work that way (just give me the option to wipe data or boot). I again try to wipe it and it says Key driver not found.
I'm stuck. Please help. Maybe I'm still doing something wrong.
Last edited by mbr482s; 06-22-2012 at 02:43 PM.
I'm still researching for you. In the mean time, there is a hole on the left side of the tablet about an inch or so under the micro-sd card slot. That's the reset button. Stick a paperclip in there & see if it stops the boot loop.
Use the paperclip in the hole it should work or take a hammer and beat the 300 this works best Lol
IPad 4 32 gig iOS 6.1.3
Thank you and any help is greatly appreciated. I've google the hect out of this and really haven't found much. I did check on my PC to make sure the microSD is FAT32 and I did unzip the firmware file since it basically a zip in a zip. I also just tried the paperclip trick and it just reset the screen and right back to boot loop.
Before a hammer, I will send it in (its under warranty, its a month old). I just wanted to use the dam thing this weekend and of course its freakn hosed.
If its still within 30 days exchqnge it for a new one
IPad 4 32 gig iOS 6.1.3
Yup I likely will. OF Course, I have an 8 hr flight on Sunday and now will have no tablet to watch movies and what not.. Sad... Hopefully Amazon will replace it so I dont get some sort of Reburb from Asus (its been 29 days). Unless of course, I can figure out how to fix this stupid thing.