start far manager press ALT+F1, select jdflasher and select db2020 as script, connect phone, when you see oflash and ofs in jdflasher, double click ofs and goto tpa/preset/custom. now select the customize_upgrade.xml and press F5 to copy, continue one the two other files. after coping, double click on the ".." untill it ask you to "are you sure", click on yes. now boot up the phone, goto games and run the executor, the phone will self shutdown, reinsert battery (don't power on the phone). now run far again, press ALT+F1, select jdflasher and qa2020 as script (not db2020) and connect your phone, you'll see the bflash now.