Zenithink tablet won't turn on?
I have a zenithink c91. (not sure what version number) but it wont start up or do anything period. A few days ago I killed the battery, plugged it in to charge for a few hours and it wouldnt start up. plugged it in again somewhere else to charge for a few hours and still nothing. I tried the reset button, nothing!! What should I do?
the green light comes on when its pluged into the computer but not when i plug the charger into it.
Last edited by tabowner360; 12-29-2011 at 02:02 PM.
12-29-2011 01:38 PM
Hi, i think the green light should come on if the charger is working correctly. If I have insufficient charge on mine it wont turn on, (mine is running rooted 2.3.4), if I plug it in to the wall it still wont boot as the voltage on the battery will initially be too low but it does tell me this and give me a count down of 100s (not accurate) before booting.
It sounds like your charger may not be working if the green light does not come on when you plug it into the pad. USB from a PC doesn't give out much juice, if you don't have a spare charger available you could try leaving it plugged into a live USB port for a long time before trying to boot it.
I had a similar problem with my C71. If the charger isn't the issue I would try push in the reset button for several seconds. Mines wouldn't turn on either...just a black screen. The charger indicated it was charging but it still wouldn't turn on. Even tapping the reset button got no response out of it. I finally pushed it in for about 10 seconds and the light changed color and it started up.
This happened to me once. I simply pressed the reset button. At the bottom of the tablet (where all the ports are) there is a small pin-hole. Insert a small pin/toothpick into this pin-hole and press, twice. You will be able to feel the feedback with each press of the button. This reset the device, and I was able to turn it on thereafter. Hope this helps someone.
Hi, I've just purchased a Zenithink ZT292 C91 and it was brilliant for 4 days... however it suddenly won't turn on. I've done everything stated above, I've tried letting the battery run flat and attempting to start, charging and then attempting to start and I've tried using the reset button with no success.
Originally Posted by knotprawn
Any additional help would be greatly appreciated. I don't want to return/replace the item as I've really enjoyed using it!!
hi my android is charging but it will not come on at all so what shall i do?
Help is much appreciated
Try downloading the firmware from zenithink.com for the C91 Upgrade.
Then copy the image to a micro SD card and insert it into the tablet
Connect the tablet to the mains
reset via the pin
hold down the camer button whilst powering the tablet on
If it's a software issue, then this should resolve it.
Zenithink UK - Home
Great to see ZenithinkUK now a member, Welcome Aboard!
Edit: Any chance that you will become a Supporting Vendor?
Last edited by jimbo7630; 05-07-2012 at 06:36 AM.
Hi Jimbo7630. Yes we are happy to support existing zenithink customers. However this can be to a limited capacity only, in terms of software information etc. With regards to hardware support, unless the device was purchased directly from us we cannot at this time provide hardware support. We do however have good comms with Zenithink themselves in China, and are happy to assist in whatever way we can. We have received a few support requests via your forums already and have been able to assist the best we can.
We are the team at ZenithinkUK, the official UK distributors of zenithink Tablets in the UK, follow us on our twitter page @zenithinkuk to see updates,Info on new models, trouble shooting or to post technical support issues.Look forward to seeing you all as part of the team very soon.
Thank you for allowing us to be a part of your forums.
Last edited by ZenithinkUK; 05-16-2012 at 06:21 PM.
Zenithink C91 will not power on
Hi (also to Zenithink team),
Originally Posted by tabowner360
I hope you're still following this thread. I'm having exactly the same problem as you had.
I just bought this Zenithink ZT-280 C91 10" tablet loaded with Android 4.0.3 and it worked just fine for 2 days and when I picked it up again after an hour, it's shut down (my guess is the battery depleted) and it won't power back on no matter what I do! I've tried resetting for 10 seconds twice in a row, tried pushing Camera / Power Button simultaneously, tried plugging in USB cable into my laptop (no LED light comes on) ... NOTHING works! Plugging in the AC wall charger just shows RED LED light on the bottom right corner (Not Green). I did only charge this C91 for 30-min but based on what I read above, proper charging should display GREEN not RED, so I'm worried that my C91 isn't properly charging, therefore nothing works (not even resetting)... I have not yet tried the SD Card firmware reload but that's pointless since the Reset / Camera-Power button itself doesn't work -- clearly, the battery depletion IS the problem here.
If ZenithinkUK team can help how I can charge / power this C91 back up, I'd greatly appreciate it! If not, how can I return this to Zenithink for warranty replacement? I'm located in SF Bay, CA in the U.S. If this does end up being a dead C91, Zenithink has some serious Quality problems (likely H/W after discharge) with their tablets... Please help!
I hope to hear back from someone soon with ANY advice. I'll continue to monitor this thread for replies. Thank you.