As stated, the small screws of my phones stuck and i cannot unscrew them. It was most probably because of rust because the only one screw i manage to screw out has some green rust. The "spanar" i used should suitable since i managed to unscrew one. So, what can i do? I need to change the battery because it is losing power very rapidly and i afraid one day it kabooms. Thank you

What phone ?

xiaomi, long after warranty like 3 years. Can give some ideas?

Xiaomi using Philips screws only. Drill off the head of the screws by force

thx, where can i find the drill tool? what it is called?

https://shopee.com.my/13PC-HSS-HIGH-SPEED-S...48528.834099752

use smallest 1

thx, but how to drill a suitable screw shape? if you meant drill through the screw, it is not possible since the motherboard and then screen is behind the screws

or attach to screwdriver and drill manually carefully, after the head part is gone, remove the board and use pliers to unscrew the leftovers

it is crazy but it seem it is the only way, can you also recommend the drill machine? i am noob, thx for helping me so much

dont recommend using drill machine as u may drill into your board

I misread your previous comment. So you meant i should directly use the screw you recommend and slowly by hand, drill the head off?

yup, just take off the head will do, and your board will come free

u stripped the head or stripped the thread?

are you asking me?