How do i detach the keyboard on my irulu 10.1

Go to: https://www.irulu.com/info/knowledge.html
Then: support
Click on contact us and they will send You a user manual.

Might consider going to the iRulu site (irulu.com) and asking the folks there. It might be in the user manual which can be downloaded from https://www.irulu.com/download-center-new

I advise downloading the user manual from:
https://www.irulu.com/download-center-new

charge sufficientlt & power on switch for 10-12 seconds minimum

did it ever work? iRulu 7 Google Android 4 0 Smart Phone Phablet GSM Unlocked Bluetooth...

Juello. Did some research on your tablet at Amazon, (http://amzn.to/1xWx6S5) and see that they also have an AC charger (AC charger adapter with a 3.5mm power jack and delivering 5VDC 2A). Available for $5: iRulu Black AC Home Wall Adapter Cable Charger for Tablet PC 5V 2000mAh or a there's a nice replacement KB and cover: iRulu New Portable 10 1 10 5 Android Tablet USB Keyboard Case Black . I would guess the connector snapped off inside the tablet, so you will have to remove it with some tweezers. If the pin for the AC adapter broke off inside the tablet, that's a problem, but most everything can be charged from the USB port too see this website:
How To Charge Samsung Galaxy Tab 2 Via USB Port On Computer Laptop PCNEXUS (Samsung used as an example). GL

I don't think it is possible,

Its if u hook the keyboard up. Or u can use without keyboard. Cause theres a keyboard built in. So thats all that's for! Oneside is for built in the other for the regular keyboard!

am trying to connect with internet my device (irulu ak 305) but it didn't connect

Where can I find irulu tablet's kiboard user manual