Friday, February 5, 2016

TF300T Boot Loop and Write Issue in Fastboot

Long story short roomate has been using her TF300T for a couple years with no issues. Recently when her classes started back up she would turn the tablet on and sometimes get "Encryption Unsuccessful" or similiar (I can find the image if needed). Couple reboots later it would work. Well as of yesterday when we go to turn it on it is stuck on the ASUS logo screen.

I read to wipe data from the Power + Vol Down menu. I go to do that and it shows the android guy with a blue bar for 2 seconds and then goes to the passed out android with a red sign with ! in it.

I then reboot the tablet back into the menu and saw to try and reflash the stock image (was never flashed in the past). So I downloaded it from Asus's site. I tried going into RCK (Think that was the option name) and then it does the whole android guy with a blue bar for 2 seconds and then goes to the passed out android with a red sign with ! in it.

So I read around more and it suggested manually forcing the image to the tablet.

So I did this process:
> cd C:...\Path-to-Andoid-SDK\platform-tools\
> fastboot devices
> fastboot -i 0x0B05 flash system C:...\Path-to-blob\blob

Now when I go to push blob over it'll do the sending file (taking roughly 105 seconds) then it'll say "Writing /system" it'll then hang on that forever until the plug is just pulled. First time I tried it, I let it sit there for 30 minutes. Thinking it needed a lot more time I left it running for about 12 hours and still nothing. It'll either need the plug pulled or it'll pop up and say (in both cases) "failed (command write failed (invalid argument))".

Right now I've been browsing around to figure out what step to take next and doesn't seem like there's much. I tried doing ADB and it just says "Waiting for Device" so it seems to have fastboot, but not ADB.


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