WAEC Computer Hardware and GSM Repairs OBJ Answers 2026
WAEC Computer Hardware and GSM Repairs Essay Answers 2026
Number 1
(1ai)
(i)Theft Deterrent
(ii)Data Security
(1aii)
(i)Go to the phone’s Settings menu and select Security (or Lock Screen).
(ii)Tap on Screen Lock and choose the Pattern option.
(iii)Draw your desired pattern on the grid, tap Continue, redraw it to confirm, and tap Confirm.
(1bi)
collateral refers to an asset (such as property, equipment, or land) that a business owner pledges to a lender as security for a loan. If the owner fails to repay the loan used to start the repair business, the lender can seize the collateral to recover the debt.
(1bii)
(i)Strong Competition
(ii)Inadequate Equipment
(iii)Strong Competition
Number 2
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Number 3
(3ai)
(i)CPU (Application Processor)
(ii)Display/Touch Connector
(iii)Touch IC
(3aii)
(i)Touch IC: Re-soldering (reflowing) or replacing the IC chip.
(ii)Connector: Cleaning the connector with IPA (Isopropyl Alcohol) or re-seating the ribbon cable properly.
(3b)
(i)Main Antenna: For cellular signals (LTE/5G).
(ii)Wi-Fi/Bluetooth Antenna: For short-range wireless connectivity.
(3c)
(i)Rear-mounted: Located on the back of the device.
(ii)Side-mounted: Integrated into the power button.
(iii)In-display (Under-display): Located beneath the screen.
Number 4
(4a)
DIAGRAM
(4b)
(i) Charger output rating: The charging rate depends on the voltage and current output of the charger. A charger with higher current output (e.g., 2A or 3A) charges the battery faster than a low-current charger.
(ii) Battery capacity and condition: Batteries with larger capacity take longer to charge. Also, an old or weak battery charges more slowly because it cannot efficiently store power.
(4ci)
Faulty or disconnected hard drive/SSD.
(4cii)
Reconnect or replace the hard drive/SSD and ensure it is properly detected in BIOS.
Number 5
(5ai)
(i)Insufficient Storage Space
(ii)Poor Internet Connectivity
(5aii)
(i)For Storage: Delete unused apps, clear cached data, or move media files (photos/videos) to cloud storage or an SD card.
(ii)For Connectivity: Restart the router, switch between Wi-Fi and mobile data, or toggle Airplane Mode on and off to reset the network connection.
(5bi)
Business risk refers to the possibility of experiencing lower than expected profits or a loss. In phone repair, this includes potential accidental damage to a customer’s device during repair, rapid technology changes making current spare parts obsolete, or legal liabilities arising from data privacy breaches.
(5bii)
(i)Technical Expertise: Having skilled technicians who can accurately diagnose and fix complex hardware and software issues.
(ii)Quality of Spare Parts: Using genuine or high-quality replacement components to ensure customer satisfaction and reduce return rates.
Number 6
(6ai)
Charging port/USB board section
(6aii)
Flex cable/ribbon cable
(6bi)
(i)USB/charging port
(ii)Microphone
(iii)Headphone jack
(6bii)
Smartphone (Android)
(6ci)
(i)Phone will not charge
(ii)Data transfer will not work
(6cii)
(i)Screwdriver (pentalobe/Phillips)
(ii)Spudger/pry tool
(6di)
(i)X = Li-ion (Lithium-ion) battery
(ii)Y = Li-Po (Lithium Polymer) battery
(6dii)
To Store and supply electrical energy to power the mobile phone
(6diii)
(i)Phone shuts down unexpectedly
(ii)Battery drains very quickly
(iii)Phone does not power on
(6div)
(i)Less expensive / cheaper to produce
(6div)
(i)Lighter and thinner in size
(ii)Less likely to swell or explode (safer)