I'm Ollie I Dr UK and in this video we're going to take a look at this Samsung a125 a12 whatever
you want to call it and we're going to replace the screen with a genuine Samsung Service Pack
see the phone's pretty beat up but that's not a problem we'll start off by removing the SIM
tray so that we can remove the back cover pop that out and keep it safe for later and then
get a plastic pick and start in from the SIM tray area you can get in the gap between the
the screen bezel and the back cover just be careful when you get around the lock button
because there is a flex cable there but once that's up you can just pop the back cover off
with the back cover removed there is a flex cable for the lock button just disconnect that with the
plastic spudger and then there's six screws for the plastic cover covering the logic board
foreign as usual it's important not to lose any of these screws so keep
them in a safe place and then pop the plastic cover off with some tweezers
disconnect the battery Flex then remove the single screw underneath the rear camera disconnect the
display flex and pull the logic board with the coaxial cable still attached out of the way
don't pull it too hard because the other end of the coax cable is still attached to the support
remove the seven screws holding down the plastic cover for the sub board and again keep them safe
then the plastic cover is clipped on either side of the board disconnect the display Flex this
support was really covered in Gunk so I just used some contact cleaner to clean it up with
a toothbrush and then pry up the sub board it was stuck down quite well so just pull it up carefully
now moving on to the battery drop some isopropyl alcohol in in between the Gap and then leave it
five minutes before getting a suction cup and carefully pulling up on the battery if it's not
pulling up straight away give it another few minutes to let the isopropyl sink in
now we get our genuine Samsung Service Pack out the box and we're gonna play a game of
Spot the Difference just to make sure that we've moved over all the correct components
and we can see the loudspeaker air speaker is already attached to this one but
the vibration motor isn't so I just dropped some alcohol underneath that
and then pry it up to pop it out with the tweezers
everything we need removing now is gone so we can start putting back
together our Samsung a12 starting with the vibration motor installing the logic board
make sure the camera sits inside properly and then install the one screw
now it's time for the sub board drop that into place and connect the flex cable
and re-clip into place the plastic cover reinstall the seven screws from earlier
and make sure that the coaxial cable is tucked into its little Groove that it lives in
reinstall the battery
and then the flex cable can be connected to the top board
we can now connect our battery and reinstall the plastic cover along with the six screws
once they're all secured we can reattach the flex for the power button
and then drop our back cover into place apply some pressure to the back make sure there's
no obstructions underneath it at this point but that should clip back into place really
nicely before reinstalling the SIM card and then we can turn the phone back on
and we can see that it's working perfectly fine this has been another repair video from Ollie
at eye doctor UK thank you for watching I hope it's provided you some value if you did enjoy
it don't forget to subscribe give it a thumbs up leave me a comment if there's anything that
you want me to explain more or you want to see a different repair in the future see you next time