IESS.

Institute of Electronics Systems and Services (IESS), Kolkata is one of the most trusted and experienced technical training institutes in Eastern India. We provide complete chip-level practical training in laptop, desktop, and mobile repairing, designed to help students build strong careers in electronics servicing. Training at IESS is fully hands-on. Students use industry-standard tools such as multimeters, oscilloscopes, BIOS programmers, SMD rework stations, hot air guns, BGA machines, and many more essential repair tools. --- Advanced Laptop & Desktop Chip-Level Repairing Course Hardware Training 1. Introduction to Electronics & Components Study of ICs, resistors, capacitors, diodes, transistors, MOSFETs Practical use of multimeters, oscilloscopes, and diagnostic tools Component checking and fault tracing techniques 2. Motherboard Architecture Complete understanding of laptop/desktop motherboard sections Identification and testing of ICs, SMD components, and power circuits Voltage distribution, power supply systems, and signal communication Learning the function of CPU, GPU, RAM, I/O, charging system, and more 3. Circuit Diagrams & Schematics Reading and interpreting motherboard schematics Understanding signal paths and tracing faults Using boardview and block diagrams 4. Soldering & Desoldering Techniques Soldering: Through-hole, SMD, and BGA Practical work using hot air gun, SMD rework station, micro-soldering iron Replacing ICs, microchips, connectors, ports, and damaged components 5. Fault Diagnosis & Troubleshooting Fixing no-power, dead board, overheating, graphics fault, black screen issues Power section repair and short-circuit detection Display, keyboard, USB port, audio, charging port, and peripheral faults 6. BIOS & Firmware Repair Understanding BIOS structure and common failures BIOS flashing and programming Fixing firmware corruption and related issues 7. Advanced Chip-Level Repair BGA rework, reballing, and reflowing GPU, CPU, Northbridge/Southbridge repairs Component-level chip replacement and upgrades --- Software Training 1. Operating System Installation Installing Windows, Linux, macOS Drive partitioning, formatting, OS configuration 2. Driver Installation & Updates Installing drivers for display, sound, network, chipset, etc. Fixing driver conflicts and update issues 3. System Optimization Improving system performance and stability Backup recovery from damaged or corrupted drives 4. Display Repair Laptop/desktop display and backlight troubleshooting 5. Hard Disk Repairing HDD and SSD testing and repair techniques 6. Network Configuration LAN and WiFi setup Troubleshooting internet and network problems --- Advanced Chip-Level Mobile Repairing Course Our mobile repairing program covers both hardware and software in complete detail. Topics Covered Tool handling and equipment usage Mobile disassembly and assembly Study of all handset parts Motherboard section analysis Network section repair Schematic diagram reading Touch, fingerprint, proximity sensor, gyro & auto-rotation issues Audio, charging, WiFi, and camera problems Dead handset repair IC reballing, chip replacement, jumper techniques Replacing switches, connectors, ports LCD and screen replacement Android & iPhone software installation Flashing with tools & dongles Unlocking various handsets Complete fault diagnosis and solutions --- Why Choose IESS Kolkata? IESS is known for: 100% practical-based chip-level training Modern laboratory with updated tools Experienced trainers with industry knowledge Real motherboard repairing practice Live projects & practical assessments Skill-based job-oriented learning Certified diploma after course completion --- Students from All Over West Bengal & Neighboring States Join IESS Kolkata & Surrounding Areas Belghoria, Dum Dum, Baranagar, Howrah, Bally, Liluah, Santragachi, Garia, Tollygunge, Jadavpur, Kasba, Salt Lake, New Town, Behala, Joka, and more. North 24 Parganas Barasat, Madhyamgram, Habra, Ashoknagar, Bongaon, Barrackpore, Sodepur, Khardah, Naihati, Kanchrapara, Halisahar, Ichapur. South 24 Parganas Sonarpur, Baruipur, Rajpur, Canning, Joynagar, Diamond Harbour, Kakdwip, Namkhana, Gosaba. Howrah & Hooghly Uttarpara, Serampore, Chandannagar, Chinsurah, Bandel, Dankuni, Singur, Tarakeswar, Arambagh. Nadia Krishnanagar, Ranaghat, Santipur, Chakdaha, Kalyani, Nabadwip, Tehatta. Murshidabad Berhampore, Beldanga, Kandi, Jiaganj, Lalgola, Domkal. Bardhaman (East & West) Kalna, Katwa, Bardhaman town, Durgapur, Asansol, Raniganj, Kulti. Midnapore (East & West) Kharagpur, Medinipur Town, Haldia, Contai, Panskura, Ghatal, Sabang, Dantan. Other Districts Bankura, Purulia, Birbhum (Bolpur, Suri, Rampurhat) North Bengal Siliguri, Darjeeling, Kalimpong, Jalpaiguri, Alipurduar, Malda, Raiganj, Cooch Behar. Other States Bihar (Patna, Gaya, Bhagalpur) Jharkhand (Ranchi, Jamshedpur, Dhanbad) Odisha (Bhubaneswar, Cuttack, Balasore) Assam, Tripura, Sikkim and major Indian cities such as Delhi, Mumbai, Bangalore, Hyderabad, Chennai, Varanasi, Gorakhpur. --- Conclusion IESS Kolkata provides industry-standard chip-level training that prepares students to confidently repair laptops, desktops, and mobile phones at the component level. From motherboard diagnostics to IC replacement, BGA work, BIOS programming, and professional software repair—students receive complete technical knowledge and practical experience. IESS welcomes students from every corner of West Bengal and neighboring states to build a successful technical career in the electronics service industry.