KOCASO NB1400A - Manual (Page 35)

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abnormally poor performance, just let us know.
Q: Why does my screen not respond properly when I use the
touchscreen?
This may be a couple of different things. If this only occurs when charging from
a power supply, this may be due to noise from the power source not being adequately
filtered out. You may wish to give the unit a full charge and then disconnect from
power for use, or, if possible, charge with a USB cable instead. Otherwise, your
screen calibration may be off. To correct this, check for Settings->Touchpad
Calibration to see if you can recalibrate this to resolve the issue.
Q: Why is my tablet stuck at boot up, and the Android screen
will not go away?
Please see above: Should I perform a Firmware Update?
AppendixⅡ 3G Support List
NO. 3G Model Cellphone Model
1 Huawei E220 WCDMA
2 Huawei E230 WCDMA
3 Huawei E169G WCDMA
4 Huawei E160X WCDMA
5 Huawei E1750 WCDMA
6 Huawei E173 WCDMA
7 Huawei W8 WCDMA
8 Huawei E153 WCDMA
9 Huawei E153u6 WCDMA
10 VW718/719 WCDMA
11 Alcatel AL720 WCDMA
12 ZTE MF190 WCDMA
13 ZTE MF110 WCDMA
14 SEW868 WCDMA
15 Bora9380 CDMA2000
16 AWIT-U8 CDMA2000
17 Rate-EC186 CDMA2000
18 ZTE AC2736 CDMA2000
19 SEV759 CDMA2000
20 TD368 TD-SCDMA