If you want to buy a replacement screen, screwdrivers and other parts, you can order from us
here -
Nokia 7100 Supernova LCD screen
Tools required for disassembly: Torx 4 screwdriver, plastic tool such as a guitar
plectrum or credit card.
Remove your back cover, battery and sim. Now remove the four screws
circled in red.

Turn the phone over and open the slide. You'll be able to lever the
keypad and keypad surround out around its edge.

Now remove the other four screws from the back of the phone. The
battery compartment will now be loose and can be lifted away from the
main body of the phone.

With the battery compartment removed your phone should look like
below. A ribbon connector needs to be
detached (circled). This attaches like a plug and socket. Just
lever it up to unplug. You can now remove the circuit board.

Your phone should now look like below.

Move the slide part down to reveal two screws. Remove these screws.
Now pull the edges of the front cover in the direction shown by the
arrows to release the front cover.

You should now have the front cover removed. Lever the black part
off indicated by the arrow.

Your phone should now look like below. A ribbon connector needs to be
detached (circled). This attaches like a plug and socket. Just lever it
up to unplug. Now slide your plastic tool under the LCD screen to remove
it.

You should now have the LCD screen removed. Reverse the whole procedure
for reassembly. If you've found this disassembly guide useful, please support formymobile.co.uk and order the tools and parts you need from our site. We ship worldwide!
If you have any questions about how to take apart and repair your broken Nokia 7100 Supernova, email
rob.lee@formymobile.co.uk. Or post a comment below for further help with
Nokia 7100 Supernova disassembly.
If you want to buy a replacement screen, screwdrivers and other parts, you can order from us
here -
Nokia 7100 Supernova LCD screen