If the phone works, but the panel is damaged and needs to be replaced, try doing one yourself. Replacement panels for any phone model are commercially available.
Necessary
appropriately sized Phillips screwdriver, non-sharp flat blade
Instructions
Step 1
Find a replacement cover in a specialized store specifically for your mobile phone model.
Step 2
Prepare your work area - a flat, clean surface, preferably a table. Provide lighting with a comfortable brightness. It is best to do the panel replacement procedure on your phone alone, with enough time to complete it without delay. Otherwise, you risk losing small details.
Step 3
Turn off your mobile phone that you are going to replace the panel on and carefully remove the battery from the battery compartment. Use a Phillips screwdriver of the appropriate size to unscrew all the bolts of the phone case and fold so as not to lose (best of all - in some small container or box).
Step 4
Detach the phone case cover from the plastic fasteners by gently prying it off with a non-sharp flat knife (in this case, be extremely careful with the "stuffing" of the device, do not damage the cables that connect the screen).
Step 5
Remove the front of the bezel and, if the new bezel does not have buttons, remove the keyboard from the old bezel and attach it to the bezel of the new bezel.
Step 6
Carefully and firmly attach the chips and the screen to the new panel. Connect the front and back parts of it and fasten the case screws in sequence with a screwdriver.
Step 7
The points described above relate to the disassembly of phones mounted in the form of a candy bar. But if your phone model is not a candy bar, but consists of several component parts, then disassemble and assemble each part separately in the same sequence, trying not to end up breaking the integral design.