Download latest Android KitKat 4.4.2 stock firmware for YonesToptech BS970 tablet from here or here.
Firmware details
Archive: A31s_bs970_408M_lcd{18bits_lvds}_ctp{gslX680(cob)}_wifi+bt
{rtl8723au}_20140623_V4.5
Image: BS970 PMU0623.img
Build number: fiber_bs970 4.4.2 KOT49HPMU 20140623
FW version: v4.5 / exdroid4.4_r1.2-a31-v4.5
Style: BS970
Company: YonesToptech
Pixels: 1024 x 768
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.
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Archive: A31s_bs970_408M_lcd{18bits_lvds}_ctp{gslX680(cob)}_wifi+bt
{rtl8723au}_20140623_V4.5
Image: BS970 PMU0623.img
Model: YonesToptech BS970 tablet
Firmware: Android KitKat 4.4.2 stock firmware
Archive size: 336 MB
Platform: Allwinner A31sFirmware: Android KitKat 4.4.2 stock firmware
Archive size: 336 MB
Build number: fiber_bs970 4.4.2 KOT49HPMU 20140623
FW version: v4.5 / exdroid4.4_r1.2-a31-v4.5
Style: BS970
Company: YonesToptech
Pixels: 1024 x 768
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.
Don’t miss any of our future video tutorials, follow us on Youtube. Like us on Facebook. Add us in your circles on Google+. Watch our photo albums on Flickr. Subscribe now to our newsletter.