My brand new asus transformer pad tf700 will not charge just flash twice

No, that is not possible. That's because you need an ASUS-specific charging cable to charge either the tablet or the dock/keyboard (or the docked combination of the two). You can however use any charger with a USB-port that outputs at least 2 Amperes. So you need to buy a new ASUS charging cable (and a suitable charger, if you don't have one already)

Not sure if you have the TF700.
The manual is available from here.
http://s3.amazonaws.com/szmanuals/b6cf387704d3ef30604bc04377629108

1. how old is your tablet 2. have you tried another charger such as a phone charger. My blackberry charger works fine for my tablet. Also with your tablet you should have had a usb cable that connected from mini usb to the asus plug in transformer.

no idea you tell me

If the tablet power off by itself suddenly, it might be the hardware issue already.

Please send to the service centre if it is under warranty.

Asus tech support phone number: 1 (812) 282-2787 or you can do a live chat: ASUS Service North America Just pick your product and you can chat with Asus.

IF cable is not an fault, try to replace the power adapter, even if fails try in the desktop or laptop rear USB ports. Hope this may helps U

http://androidforums.com/asus-eee-pad-transformer/615796-tablet-doesnt-charge.html

take to your local repair shop it will cost £25 to repair

Amber, blinking
AC adapter and battery are
available and waiting to charge
(battery is out of thermal range).

Amber
AC adapter and battery are
available and system is charging.

This is from the manual.

Good Luck.