Robotics Education & Competition Foundation
Inspiring students, one robot at a time.

TI 2017 Challenge


Entry ID #: 2995
Created: Thu, Jan 5, 2017 6:21 PM

The electronic device we chose to disassemble was a Nokia 2760. We chose this device because it was “old” and might not contain current components. We found various components from the phone. The main parts we found were a Nokia BL-4B battery, a Nokia 2760 Silver Battery Cover, 2 rubber stoppers, 6 Nokia Lumia 1020 Screws M1.6 x 3.5, a Nokia 1680 Classic Display (LCD), an earpiece, a Nokia 2760 Display (LCD) Outer, a Nokia 2760 Flex FPC Assy, the leftover back, Nokia 2760 Hinge Cover Silver, Nokia 2760 Keypad Cover Silver, Nokia 2760 Keypad Latin Grey, Nokia 2760 Front Cover + Lens Black, Nokia 2760 Mainboard incl. IMEI Label, and a Nokia 2760 Keypad Flex UI-Board. We decided to only focus on parts that did something “electronically” (e.g. covers and screws don’t need findings on what they do). The Flex FPC Assy was a wire that must have connected places to transfer electricity to power gadgets. The earpiece conducts electricity and amplifies sound. The earpiece could be Bluetooth. Both of the LCD screens are flat panel displays that use light crystals to show simple pictures. The big LCD screen shows everything while the smaller displays time and date. Lastly, both motherboards connect the various functions on it such as the CPU and memory. The big one controls the controls and the memory while the smaller controls the camera and maybe even more memory. A majority of the plugs connect to either mainboard which probably shows that energy is transferred to power it. We were confused on how side accessories like the camera and the keypad worked. In instance of the keypad, the buttons hovered over a part of the mainboard but there could be some beneath the metal hiding it. If that was true, it would be puzzling on why the keys weren’t consistent. Maybe the keys were different so the mainboard could easily tell what key to press due to each units’ uniqueness. Some attachments seemed to have no purpose. There was a sideways spiked object and what seemed like a motor with a spinning piece of metal attached. The camera on the other hand seemed to have nothing attached to it. Also, throughout some of the pieces you could see 0’s printed which may be code. In conclusion, all of the pieces either connect to each other to transmit energy to power purposes or just bring pieces together. We learned through this experiment that everything is made to do a precise thing and that parts that we did not investigate may have done a purpose. There were pieces the metal all over the device that did not seem as it would do anything. The experiment also brought upon a lot of self-consciousness on the devices we use every day without even knowing a bit about the complexity. Photo Gallery: The Nokia 2760, a.k.a the test subject. The phone after completing the disassembly (R.I.P) The non-electrical items (not including the phone) All the pieces that played a part or a function(earpiece,both mainboards,and both LCD screens).  


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