UPMSP Vocational Mobile Repairing case studies
UPMSP Vocational Mobile Repairing · Put your knowledge to work in context.
The UPMSP Vocational Mobile Repairing course is a Uttar Pradesh Board (UPMSP) vocational trade subject that introduces students to the practical craft of servicing and repairing mobile handsets. It suits secondary and intermediate vocational students who want a trade skill they can use in a repair shop, service centre, or their own small business, and it also appeals to self-learners who want structured grounding before entering the trade. The UPMSP Vocational Mobile Repairing case studies are 5 cases and about 3,702 words.
1Six-Hour Charging on a 5 V/2 A Charger: Cable or Handset?
A customer brings a 2020 budget Android handset to your shop saying it now takes about six hours to charge, though it used to fill in under two. You connect it to the shop's 5 V/2 A charger through a USB power meter: the charger's open-circuit output is 5.10 V, and while charging the meter shows 5.02 V at the charger end with 0.52 A flowing.
719 words, about 4 min2Black Screen but the Phone Is Alive After a Fall
A customer's budget 6.5-inch LCD handset (MediaTek chipset, 2021 model) came in after a fall from a two-wheeler. The phone vibrates once when the power key is pressed, a notification tone is heard about 20 seconds later, and when connected to a PC it appears as an MTP device - but the screen stays completely black.
763 words, about 4 min3USB-C Port Replacement on a Thin Six-Layer Board
A 2022 mid-range handset needs its worn USB-C port replaced. The port is soldered directly to the main board: 16 signal pads plus four through-hole anchor legs, on a 0.7 mm six-layer board with a heavy ground plane.
742 words, about 4 min4Bootloop After an OTA Update: The Only Copy of the Family Photos
A customer brings in a three-year-old Android handset that rebooted during a system update and now loops: the brand logo appears for 6–9 seconds, the screen goes black, and it restarts. It never reaches the lock screen.
742 words, about 4 min5A Comeback Repair, a Warranty Claim and an Angry Regular
Your shop charges ₹650 for a USB charging-port replacement (₹350 part, ₹300 labour) and gives a 30-day warranty on the replaced part only, printed on the bill. On day 26, a customer who runs a courier business and has given you 14 handsets in the past year returns his phone: it has stopped charging again.
736 words, about 4 min