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For those of you who may have to repair their own Galaxy Note 3 in the future, I’ve made a quick video tutorial on how to disassemble/assemble the Note 3. This should give you a good understanding of how to disassemble your phone safely and also repair your phone easily by replacing parts if you happen to break them.
If you broke your screen and your touchscreen is still working, please see How to Separate Glass Only on Galaxy Note 3.
If you broken your screen and your touchscreen is not working, please see How to Replace Screen Digitizer on Galaxy Note 3.
And if you do have warranty or insurance, I highly suggest you to use that before trying to fix the phone yourself as disassembling your Note 3 will void its warranty in most cases (if your Note 3 comes with a warranty sticker, my SM-N900 didn’t but my SM-N9005 did).
Step 1. Take the back cover, SIM card, microSD card, and battery out. There should be around 11 or 12 visible screws. Use #00 screwdriver and unscrew them all.
My SM-N9005 came with a warranty sticker on the back (while my SM-N900 didn’t). If yours has one, you need to unscrew the screw that’s hiding under the sticker. And yes, this will obviously void your warranty. If you don’t have one, you got lucky.
What is a Custom ROM?
A custom ROM is a custom, modified operating system that you can install on your Android device. Basically it's like installing Windows OS on a Macbook. By installing a custom ROM, you can bypass stock factory settings like locked hotspot tether, install new Android versions early, or even convert your phone into another OS.
With a custom ROM, you can really maximize the capabilities of your smartphone by adding custom features that have been developed by open source developers.
How to Install Custom ROMs
First, you will need to root your device, if it is not rooted yet, follow our root tutorial and root your phone.
Once rooted, you should have TWRP installed on your phone. Installation of a custom ROM is easy if you learn the basic of it. If you don't know how to install custom ROMs using TWRP recovery, see our tutorial on How to Install Custom ROM using TWRP!