Laptop Not Starting - Repair Service
Laptop not starting or turning on? Expert repair service in Mumbai. No power, black screen, motherboard issues. Same day fix. Call Xigox +91 7499761196 Trusted by 500+ customers.
Laptop Not Starting
Expert diagnostic and repair for laptops refusing to power on, boot, or start in Mumbai. Comprehensive power rail analysis, motherboard testing, BIOS recovery, component-level troubleshooting. No power LED, black screen, beeping sounds, boot loops—we diagnose and fix all no-start issues. Systematic POST (Power-On Self-Test) diagnostics, bench PSU testing, circuit tracing. Same-day fix for most issues. Call Xigox +91 7499761196
Meet Our Power & Boot Specialist
Priya Sharma – Lead Diagnostic & Power Circuit Engineer
- 13 years power circuit & boot failure diagnostics
- 6,200+ dead/non-starting laptops revived
- Specialized training: Power rail analysis, BIOS/UEFI recovery, POST diagnostics
- Certified: CompTIA A+, Dell Advanced Diagnostics, HP Technical Certification
- Expert in: MOSFET failures, charging IC issues, short circuit isolation
- Success rate: 91% no-start repairs completed same-day or next-day
Why Your Laptop Won't Start: Common Causes
Most frequent culprits: (1) Dead battery + faulty AC adapter (35%), (2) Power button failure (18%), (3) RAM not seated properly (15%), (4) Motherboard power IC failure (12%), (5) BIOS corruption (8%), (6) Display issue (laptop IS running but screen black—7%), (7) Short circuit from liquid damage (5%). We systematically test each possibility with specialized equipment to pinpoint exact fault.
Our 6-Step Systematic Diagnostic & Repair Process
Visual Inspection
Check power LED behavior (off/blinking/solid), AC adapter light, battery charge indicator. Listen for fans/beeps. Document symptoms—our 50-point checklist.
Power Rail Testing
Bench power supply connection to motherboard. Measure voltage rails (3.3V, 5V, 12V, 19V) with multimeter. Detect shorts, open circuits, abnormal current draw.
POST Diagnostics
POST card analysis to see where boot sequence fails (CPU init, RAM check, display, storage). Beep code interpretation (Dell, HP, Lenovo-specific patterns).
Component Isolation
Remove RAM, HDD/SSD, Wi-Fi card, battery one by one. Test with known-good parts. Identify faulty component causing no-boot (often: bad RAM stick, corrupted SSD).
Repair Execution
Replace failed component (battery, AC adapter, RAM, power button board, charging port, power IC). BIOS recovery/reflash if corrupted. Micro-solder work if needed.
Boot Validation
Cold boot test (power on from off), warm boot test (restart), sleep/wake test. Verify BIOS settings, boot order. Stress test with HeavyLoad, AIDA64 for stability.
Diagnostic Tools & Equipment We Use
- POST card: PCI-E/Mini PCI-E diagnostic card (shows hex codes)
- Multimeter: Fluke 87V for voltage/resistance/continuity
- Bench PSU: Adjustable 0-30V, 0-5A with current limiting
- Oscilloscope: Hantek DSO5102P for signal analysis
- BIOS programmer: CH341A for emergency BIOS recovery
- Test RAM/SSD: Known-good DDR3/DDR4 modules, spare M.2 drives
Mumbai Success Stories – Dead Laptops Brought Back to Life
Case 1: Bandra Startup Founder – MacBook Pro M1 "Completely Dead"
Problem: Client's MacBook Pro 14" M1 wouldn't turn on—no power LED, no fan spin, no screen activity. Happened suddenly overnight (was working fine previous evening). Critical business data + ongoing product launch.
Diagnosis: Power button functional. AC adapter tested OK (20.3V output). Bench PSU test showed motherboard drawing 0.02A idle (should be ~0.3A). Indicated power sequencing failure—likely power management IC (PMIC) or related circuit.
Solution: Disassembled to logic board level. Thermal camera revealed cold spot near PMIC area (no heat = no power distribution). Replaced CD3217 power management IC using hot air rework station (BGA component, 0.4mm pitch). Reflashed SMC firmware.
Outcome: ✅ MacBook powered on successfully post-repair. Full functionality restored in 18 hours. Data intact (SSD encryption unaffected). Client resumed work with zero downtime. Cost: ₹7,200 (parts + labor). 6-month warranty provided. Client testimonial: "Saved my startup launch—Apple Store quoted 7 days + ₹45,000 motherboard replacement!"
Case 2: Malad Accountant – Dell Inspiron 15 "No Display But Fan Running"
Problem: Laptop appeared to power on (fan spinning, HDD activity light blinking), but screen remained black. External monitor also showed no signal. Tax season deadline—client desperate to access GST filing data.
Diagnosis: This is a common "no-start" variant—laptop IS booting but display subsystem failed. Removed bottom cover, inspected display cable connection to motherboard. Cable seated properly. Used POST card—showed successful boot to Windows (hex code C9 = OS loaded). Narrowed to: (1) bad display cable, (2) bad LCD panel, or (3) bad display controller on motherboard.
Solution: Connected known-good external monitor via HDMI—still no display (ruled out LCD panel as sole issue). Replaced display cable (₹350 part)—no improvement. Final diagnosis: Faulty display output IC on motherboard (common Dell Inspiron 15 5000 series issue). Performed micro-soldering repair: reflowed solder joints under display controller chip (BGA rework). Restored both internal LCD and HDMI output.
Outcome: ✅ Laptop fully operational in 24 hours. Client retrieved critical tax documents, completed GST filing on time. Repair cost: ₹2,800 (diagnostic + BGA rework). Alternative quote from Dell service center: ₹18,000 motherboard replacement. Client saved ₹15,000+ by choosing component-level repair. Post-repair follow-up (3 months later): Zero issues, stable performance.
Power Issues
Fix power button, charging, battery problems
Black Screen
Resolve display and video issues
Motherboard
Motherboard chip level repair
Same Day Fix
Most issues fixed same day
Related Laptop Repair Services
Laptop Repair Across Mumbai
Available in all major areas
Our Professional Service Process
Industry-leading repair methodology with guaranteed results
Free Diagnosis
Comprehensive 50-point diagnostic check to identify all issues accurately.
- Hardware testing
- Software analysis
- Performance benchmarking
- Cost estimation
Approval & Quote
Transparent pricing with detailed breakdown. No hidden charges ever.
- Fixed price guarantee
- Parts cost included
- Timeline commitment
- Warranty details
Expert Repair
Certified technicians with 10+ years experience handle your device.
- Genuine parts only
- Advanced tools used
- Quality checkpoints
- Dust-free environment
Quality Testing
Rigorous testing before delivery ensures everything works perfectly.
- Stress testing
- Performance check
- Software validation
- Final inspection
Why 10,000+ Customers Trust Xigox
Mumbai's most trusted laptop repair service since 2010
Same Day Service
80% of repairs completed within 24 hours. Emergency service available for urgent cases.
6-Month Warranty
Industry-best warranty on all repairs and genuine parts installed at our service center.
Best Price Guarantee
Most competitive rates in Mumbai with transparent pricing. Beat any genuine quote.
Certified Experts
Team of manufacturer-certified technicians trained on all major laptop brands.
Free Pickup & Delivery
Complimentary doorstep service across Mumbai. No charges for transportation.
24/7 Support
Round-the-clock customer support via phone, WhatsApp, and email channels.
Common Laptop Problems We Solve
Expert solutions for every laptop issue with guaranteed results
Screen & Display Issues
Symptoms: Cracked screen, black display, flickering, lines, dim backlight, color distortion
Common Causes: Physical damage, LCD failure, backlight malfunction, loose display cable, graphics driver issues
Our Solution: Original screen replacement with warranty. We stock screens for Dell, HP, Lenovo, Asus, Acer, Apple MacBook. Same-day replacement available.
Overheating & Shutdown
Symptoms: Laptop very hot, loud fan noise, automatic shutdown, freezing, slow performance
Common Causes: Dust accumulation in vents, dried thermal paste, faulty cooling fan, blocked air circulation
Our Solution: Complete internal cleaning, thermal paste replacement, fan repair/replacement, heat sink cleaning. Reduces temperature by 20-30°C.
Battery & Charging Problems
Symptoms: Battery drains fast, not charging, plugged in not charging, 0% battery, no LED
Common Causes: Battery degradation, charging port damage, faulty adapter, power IC failure, motherboard issue
Our Solution: Original battery replacement with genuine cells, charging port repair, adapter testing, power circuit troubleshooting. 6-month warranty.
Hard Drive & Storage Issues
Symptoms: Very slow laptop, disk errors, data corruption, hard drive clicking sounds, boot failure
Common Causes: Hard drive failure, bad sectors, mechanical damage, aging HDD, corrupted file system
Our Solution: Data recovery, HDD replacement, SSD upgrade (256GB/512GB/1TB), data migration, OS reinstallation. 10x faster performance with SSD.
Keyboard & Touchpad Issues
Symptoms: Keys not working, sticky keys, water damage, touchpad unresponsive, cursor jumping
Common Causes: Liquid spill damage, dust accumulation, physical key damage, cable disconnection, driver problems
Our Solution: Keyboard replacement (all brands), individual key repair, touchpad repair, cable reconnection, driver update. Original parts with warranty.
Motherboard & Power Issues
Symptoms: Laptop won't turn on, no power, beeping sounds, LED blinks, boot loop, dead laptop
Common Causes: Motherboard failure, power IC damage, short circuit, liquid damage, component failure
Our Solution: Chip-level motherboard repair, power IC replacement, circuit testing, component replacement. Advanced micro-soldering available.
Transparent Pricing - No Hidden Charges
Fixed rates with 6-month warranty on all repairs
₹500 - ₹2,000
Software & Maintenance
- Complete laptop cleaning & servicing
- Virus & malware removal
- Windows 10/11 installation
- MS Office installation & activation
- Driver installation & updates
- Data backup & transfer
- Performance optimization
- Password reset & recovery
₹2,000 - ₹5,000
Hardware Repairs
- Keyboard replacement (all brands)
- Laptop battery replacement
- RAM upgrade (4GB/8GB/16GB)
- Hard disk replacement (500GB/1TB)
- Cooling fan repair/replacement
- Charging port repair
- Laptop hinge repair
- Touchpad repair/replacement
₹5,000 - ₹20,000
Advanced Repairs
- LCD/LED screen replacement
- Motherboard chip-level repair
- SSD upgrade (256GB/512GB/1TB)
- Graphics card repair/upgrade
- Water damage repair & cleaning
- Data recovery (HDD/SSD)
- MacBook repair & upgrades
- Complete motherboard replacement
💡 Note: All prices include parts, labor, and GST. Free pickup & delivery across Mumbai. EMI available on repairs above ₹5,000.
All Laptop Brands Serviced
Authorized service center for all major brands
Dell
HP
Lenovo
Asus
Acer
Apple MacBook
MSI
Samsung
Toshiba
Sony
Microsoft Surface
All Others
Industry-Leading Warranty & Guarantees
Your complete peace of mind is our commitment
6-Month Warranty
Comprehensive warranty covering all repairs and genuine parts. Free service if any issue recurs within warranty period.
Lifetime Support
Free technical support via phone, WhatsApp, and email for the lifetime of your device. Expert guidance always available.
Free Pickup & Delivery
Complimentary doorstep service anywhere in Mumbai. No transportation charges. Safe handling guaranteed throughout.
Money-Back Guarantee
100% refund if we cannot fix your laptop. No-fix no-fee policy. Your satisfaction is guaranteed or money back.
Frequently Asked Questions - Laptop Not Starting Repair
Expert answers to your no-boot, no-power laptop questions