have you tryed to driverdump? // https://techtablets.com/teclast-x3-pro/downloads/
also having problems with bluettooth, ewen thow its on the X2pro (but not much difference)
made an clean install, to get rid of that heavy old teclast image packing android emu.. and afterwa´rds install doubledriverdump from here and gttouchsetting.(close to everything seems to work)
but are getting some errors (4errors-pic attached) when using doubledriver, and wondering if these are to blame for my x2pro-bluetooth not finding anything, while turning it on..// will check further to see how to manuelly put these drivers in..and if that makes any difference..
// the engine-room seems to fire on all cylinders (geek4 stock)
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