[Huawei MediaPad, T-Mobile SpringBoard] eurobass:
All,

I've been following posts on XDA since my original droid incredible days. I've rooted and maintained two phones, never have any issues.

Recently I purchased a T-Mobile Springboard (got a crazy promotion price through my company) which ran stock TMo Honeycomb. Eager to get ICS and eager to get rid of the power-on tmobile jingle, I installed the latest S7-302u firmware update from Huawei's website. I am aware that my device is technically S7-303u, but the update worked fine and I had little-to-no bugs. I am very pleased with this tablet.

Now here where I get stupid.

A coworker of mine then tells me that he has a S7-303u update.zip file that he can give me, which I don't object to. I give him my micro SD, he places the file in the 'dload' folder with 'unlmt.cfg'. I then reconsider my predicament, and decide that I'm happy with my current firmware, even if it's not made specifically for my tablet hardware version. If it ain't broke, don't fix it.

By the evening, I forget that the update file is on my SD card.

Before going to bed, I extinguish the battery and let it power down. I then plug it in the the wall and fall asleep.

Around 3 am (3 hours later) I was woken up to my springboard rebooting. Confused, I pick it up and see that it's in some kind of boot-loop. The screen turns on, but stays black, and then immediately powers down, and restarts. This process repeats indefinitely. I hold the power button down, trying to do a hard-reboot, but it doesn't seem t work. Then, after about 5 "holding the power button down for 10 seconds", the device reboots and I am graced with the gracious Huawei MediaPad logo.

The device automatically goes into recovery mode and installs the forgotten update.zip....

Now I'm pissed, specifically because I've lost my high scores in Trainyard Express and just because I now how to re-install all my apps. It's annoying, but it's not the end of the world. Or so I thought.

I use my tablet 75% of the time for reading through the kindle app, and on this version of ICS the kindle app doesn't work! So immediately I decide to revert back to the old S7-302u update that I originally had installed, following the same steps I did to manually update the device previously.

I now cannot, for the life of me, get this thing to boot into recovery mode. The only thing I can get this device to do is get to the "Enter into fastboot mode" screen by holding the power button and the volume+ key (the one closest to the power button).

A few other symptoms:

1. The device is set to quickstart mode by default and I don't see any option to deactivate it. The only way to get the device to actually "turn off" is to choose restart to hold the power button down for a hard reboot.

2. If I hold down the power button for ten seconds, I expect the device to power down and stay down. This is not the case. It always reboots immediately. I have no way of actually fully powering this device down (not counting the quick-start power-down).

3. No charging indication. I'm not sure if this is a hardware or software issue. My device will charge, but it does not give any indication on the screen or the battery icon.

Now I'm stuck wondering what to do. Did I ruin this device? I wanted to avoid rooting it because of the loss of 4G data, but now I'm afraid that I might need root-permissions to fix whatever I messed up.

Thanks in advance for your help.

Daniel

PS. Just so you all know my experience, I've rooted and maintained a droid incredible and currently, my galaxy nexus. I however, have no programming experience what-so-ever. I'm just good at following directions (usually).