So neither of you are able to get to the screen that has the three icons?
If you can get to that screen you should be able to do a cold reset. This is the wipe data option. In other words, you will lose all your data.
Also, you might be able to flash stock SKU if you can get to that screen.
Sent from my SM-N900T using XDA Free mobile app
---------- Post added at 05:40 PM ---------- Previous post was at 05:40 PM ----------
I have the same issue with a tf300t after attempting to update it. It's stuck on the boot screen with text in the top-left corner reading "signature match". Nothing happens, I've rebooted multiple times using multiple methods, but nothing works. I did manage to get my pc to recognize the tablet for a short while, but it didn't recognize the device.
Please, is there anything we can do besides getting a new tablet?
Edit: I tried adb and fastboot. No success. My tablet won't boot into the required state for these methods. Is there any other way to get it back to working order besides sending it to ASUS?
So you can't get to any screen on your tablet? What is your process? Which buttons are you holding?
Sent from my SM-N900T using XDA Free mobile app
---------- Post added at 05:42 PM ---------- Previous post was at 05:40 PM ----------
I have a TF300T that I need to fix. It gets stuck in an infinite boot loop, and when I try to run the recovery kernel, it will not work. I'm trying to flash CWM or a new rom onto it to get it running again, but the bootloader is not unlocked. Is there any way that I can unbrick the tablet without needing to unlock the bootloader, or is there any way I can unlock the bootloader without running the apk file Asus gives? I can't get past the recovery menu.
If you can get to the recovery menu, try doing a cold reset. It will wipe all of your data. You click to move over to wipe data and select it. Then you should be able to boot and install that app to unlock your tablet.
Sent from my SM-N900T using XDA Free mobile app