I have a K88 Trek2 tablet and I'm trying to use a USB stick on it but I need an adapter. I don't know what kind please help

Could be a hardware issue or try and hard reset the tablet

Hi I would do a ( factory reset ) to clear all the corrupt app's .
cheers.

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HQRP USB to micro USB Cable / USB Charging Cable for ...

www.amazon.com > ... > USB Cables

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Rating: 2.9 - ‎22 reviews
1A AC Wall Power Charger Adapter Cord for Hisense Sero 7 LT Lite E270BSA .... If you try to use the tablet while it is being charged, no charging will take place.

HQRP AC Adapter / Battery Charger / micro USB Charging ...

www.amazon.com > ... > USB Cables

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Rating: 3.7 - ‎6 reviews
HQRP USB to micro USB Cable / USB Charging Cable for Hisense Sero 7 LT E270BSA / Hisense... ... HQRP Micro-USB AC Adapter rapidly charges your Cell Phone / Tablet PC ... This one does not. ... Yes No Sending feedback. ... $3.91. 1A ACWall Power Charger Adapter Cord for Hisense Sero 7 LT Lite E270BSA Tablet.

HQRP AC Adapter Dual microUSB Charging Cable for ...

www.amazon.com/HQRP-Adapter-microUSB-Chargin...

Amazon.com, Inc.HQRP AC Adapter Dual microUSB Charging Cable for Hisense Sero 7 LT E270BSA... Do not wait until charging one of your devices to charge the second.

1A AC Wall Power Charger Adapter Cord for Hisense Sero

Go to you tube and type your question and a page of video's will appear, have your tablet to hand and you can follow the video and pause it if you want. Hope this helps you ...

Hello Michael. What kind of tablet is it? If you're on an iPad, Please follow the guide below.

If the files are saved on computer, you'll need to use iTunes to transfer them. The EPUB files you purchase in iTunes on computer are also needed to be synced to iPad, therefore iTunes provides great help at this moment to transfer ebooks to iPad.
After syncing PDF and EPUB files to iPad Pro, people are able to read these ebooks on your tablet with ease.

Get more information here. http://www.leawo.org/tutorial/how-to-put-ebooks-on-ipad.html

Not sure on you particular model but most tablets have 2 mini USB ports one has a power supply and the other is just an I.O port .

Try your keyboard in the other port if you have one and it should work. If not it may be faulty.
HTH

Please ensure you are using the correct power adapter that came with the tablet. If it is the wrong voltage/amps then the charging function will protect itself. If it uses a micro USB end then try charging via a computer USB port using a USB to Micro USB cable. This should work and will possibly eliminate the Tablet from the diagnosis. DON'T try to make your own power solution from a combination of cables/adapters because it's potentially dangerous to both you and your tablet.

I have a cruz t301 woould like to know how to sync my tablet with my pc.I have trided the aacount will not work says can not connect to server.Would like to do this so i can use it for my school on line work.Would like your help thank you.

Have you tried to change the broadcasting channel from the router? Maybe at your area there are too many WiFis.

In case of a problem or clarification, don't hesitate to post.

Thanks and regards
Please kindly rate this solution
Stelios

Yeah! You can. As far as I know, third party software Windows Login Recovery is used to reset forgotten windows password and the windows password reset file can be stored in a USB flash drive.