Experienced by trial, error and bricks, it was found that starting approximately
since the fall of 2016, and already 100% from the winter and beyond 2016 \ 2017 sold devices began to go
with a new revision of the screen and \ or touchscreen . It was found out because of one of the users, and then an avalanche of many at once, when flashing any
"of old" TWRP, laid out until April 22, 2017 (and new ones are posted
in this post ), as well as any custom and stock firmware, except for 30666, there was an artifact in the form of a screen with color stripes and ripples. There was nothing or almost nothing on such screens. Only the drain firmware saved
30666 in the form of a packfile with
lenovo-forums.ru . You can read this fascinating thriller (and even for those who have a completely new device) here:
Lenovo A1000 - Firmwares (Fasting RZcT # 57917459) Through logical conclusions and experiments it was established that this firmware is 30666, and only it is universal for all revisions. And the firmware below it is suitable only for older devices made before the time specified above. The bottom line is that, starting from 30666, the manufacturer slightly tweaked the new core so that on any revision and any firmware there were no bars on the screen.
In short, the problem with TVRP is solved, new TVRP, suitable for ALL revisions, hang in the cap, no one else will be in the TVRP anymore. As for the possibility of flashing old firmware on the devices of new revisions, it is not so simple, although it is not at all difficult. Read the spoiler "
Firmware "-->
Lenovo A1000 - Firmwares (Post nemo-nemo # 60718911) .