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Method one: Anti-root method:
Applicable conditions: TV has root but does not brush third-party firmware
Simply put, the root state of the TV is disarmed by the tool. If root has already uninstalled the built-in software, then it is best to put the software back (you can extract it from the official package or share it with a net friend or search online to download the built-in software). 
Method Two: Rolling back to the official is the right way
Applicable conditions: brush the third-party firmware
Sometimes we just hardware is broken, although the system is no problem but has root brushed third-party firmware. At this time, brushing back to the official package is the best choice. 
Method 3: It has been painted into a brick...it's great
Applicable conditions: Like Xiao Bian, who does not fear the power and arguing for righteousness
Brush brush into a brick, this time do not think that did not save, on the contrary, this time we can look angry and after-sales service said that did not dry TV is broken your TV is not a problem!!! To be a little more innocent ~
If you can't, then you can adjust your strategy and change to an after-sale service center. In short, you mustn't reveal this TV because you only get a brush. 
Method 4: Set aside and die
Applicable conditions: Already root, the TV has not become a brick, the official brush package either can not find or will not brush, the root tool own model is not applicable ....
At this time, you will need the trick of "death and death."
Simply put, after Baidu, which root file can not be deleted, we specifically delete these files to achieve a complete brick effect.
Afterwards, please refer to the third method.
Seeing this, is there no longer any concern about root?
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