My tablet wont start after it fell in water
i need help to fix it urgently. help
A mini tablet computer designed by Blackberry and manufactured by Quanta Computer in 2011. Model number RDJ21WW.
First things first: do not try to turn it on anymore until you're sure it's completely dry. Water isn't damaging to a device, electricity is, and water reroutes electricity where it's not supposed to go.
Until you can't get it open, put it somewhere dry, possibly surrounded by silica packs or (lacking them) rice.
As soon as you can, open it carefully, remove the battery, and clean with isopropylic alchol and a microfiber cloth every trace of water. Don't use an hairdryer, at least, if you're truly in a hurry, blow only cold air, never hot air, that could be as damaging as the water.
Make sure it's clean and dry, put it back, turn it on and reassess the damage.
You may end with a damaged battery, since it got shorted out. Maybe some other sympthoms... if you want to check them by yourself, return here and describe them.
Red light flashing at startup is a ROM error, so it is possible that your main memory chip is defective because of the water. I had a similar issue and I just reinstalled the firmware given from BlackBerry website with a USB connection to my computer and BlackBerry Desktop. Works like a charm now.