hi zakiy ,
i got 1 more photo solution is your 1st photo that no step 3 .
last tijme i try my this solution . yes it work , but not all n70 white screnn & hang problem can solcve .
lasttime i heard people tried your 4th phote & tested work .
i think it has many different damage with same status .
that whys there is many solution ..
for me . i'll take the easiest solution 1st .
( maybe some photo is fake or edited )