[Upgrading, Modifying and Unlocking] HEXcube:
iTAB bugs

iTAB is a great 'value for money' device. But, like every device,iTAB also has its own problems. Over my few months of iTAB usage i've encountered a few. Some of these are iTAB specific, some Rockchip or Rk29 and some maybe even ICS bugs.

1. Touchscreen Freezes

2. Unmounting external storages unmounts internal too.

3.Temporary Thumbnail file takes over 1GB space.

4.Reboots occasionally after disconnecting USB Storage.

5. (shout)I can't play Angry Birds Star Wars.... :(

Explanations

Lets get into the details of these bugs...

1. Touchscreen Freezes

It happens sometimes, if i touch the screen at many positions or if i place the tab somewhere with screen down. The touchscreen becomes unresponsive. It just shows a white dot on the place i touched last(i've enabled touchpoint display in Developer Options). It may not be an iTAB or rk29 specific issue.I've read about other devices with same problem.

Workaround: Try any one of these:

i.Try turning off the device. Simple,isn't it? But,unfortunately not. When you long press the power button. It'll show the confirmation message. As the touchscreen is messed up there's no way to touch the screen. If you've got a usb mouse,plug it and accept the turn off confirmation.

ii.If you don't have a mouse,then the other choice is hard reset. Poke the reset hole with a pin. Another way is to press the turn off key combination. It's like pressing menu+power,volume+power,etc. But,i have'nt found it yet for iTAB. :(

iii. The 3rd method is to attach a mouse, start a terminal app(with ROOT), and type in some command to reset the touchscreen interface. But,i don't know the command yet!:p

2. Internal Storage unmount problem

When i unmount USB drive or external SDcard via the Settings->Storage menu, the internal SD gets partially unmounted. Well,i meant it'll still be displayed as mounted in Storage Settings,but you wont be able to run apps installed in SDcard. All the files in SDcard will be available though.

Workaround: Try any one of these:

i.Use the umount command on terminal instead of using Settings->Storage.This may require ROOT.

umount <device_mountpoint>

But,it'll still warn you on removal.

ii.Don't bother to unmount the storage.Just make sure that no app is using the external Storage and then pull it out! This won't cause any problems most of the time, atleast for USB drives.

iii.If you really wanna use the unmount option in Settings->Storage, well... go ahead! But,make sure you unmount and then mount the internal sdcard too.

3. Really Big thumbnail cache

By big i mean more than 1GB in size. The file is generated after a media scan. If you happen to run out of space,do check the files in

/sdcard/DCIM/.thumbnails/

Workaround: Delete the files in this directory. They're little more than temporary files.

4. Restarts after USB Storage is done

Sometimes,device restarts after Turn Off USB Storage is done. I don't know if it has anything to do with my external sdcard.

5. No Angry Birds :(

Newer Angry Birds versions and Angry Birds Space closes immediately after start.This is an issue with Vivante GC800 GPU that all rk2918 devices use.

Workaround: The XDA Recognised Developer and Modder Oma has released a fix for this bug. I have'nt used it yet.