The video show you Sony Xperia Z3 full disassembly. You will know how to tear down the Z3 for DIY repair.
Get Original Replacement Parts for Sony Xperia Z3 : https://witrigs.com/d9ihg
What you should do:
Step1 Free the back cover (secured by adhesive sticker)
Step2 Remove the loudspeaker assembly
Step3 Remove the battery
Step4 Tear down the main flex
Step5 Remove the signal cable
Step6 Remove the magnetic charging flex
Step7 Take away the rear camera
Step8 Start to remove the motherboard
Step9 Remove the front camera
Step10 Tear down the earpiece
Step11 Remove the headphone jack with sensors
Step12 Free the screen connector Step13 Separate the screen from the mid-frame
Tips: For avoid damaging the inner cables, do not put the guitar pick into the phone over 3mm.
Tool:
- Heat gun or hair dryer - https://zegsu.com/s/dj44c
- Suction cup - https://zegsu.com/s/dj2cm
- Two guitar picks - https://zegsu.com/s/dj2t0
- Tweezers - https://zegsu.com/s/dj447
- Spudger - https://zegsu.com/s/dj44y
- Phillips screwdriver- https://zegsu.com/s/dj44o
Witrigs offer not only mobile repair tutorial including disassembly, assembly, and components replacement guide but also phone accessories review video on YouTube.