Stock ROM / firmware for Lenovo Tab 4 8 Plus (TB-8704F)
HOW TO FLASH:
STEP 1: Download & Extra rom, install QPST tool.
STEP 2: Windows [Start] button >> All programs >> QPST >> Run QFIL
STEP 3: Power off your phone, press Volume Up + Down and connect to PC
STEP 4: On QFIL tool, select the same as the image below (select to rom folder)
STEP 5: After press DOWNLOAD BUTTON, wait about 5-10 minute