Skip to main content
Fujitsu Fujitsu · Laptop USB Ports Not Working · Kaman Road

Fujitsu Laptop
USB Ports Not Working
in Kaman Road

Expert diagnosis & repair for Laptop USB Ports Not Working on your Fujitsu device in Kaman Road. Free doorstep pickup, genuine parts & 90-day warranty.

✓ ₹350 Inspection (refunded if you proceed with repair) ✓ Free Doorstep Pickup ✓ Same-Day Repair ✓ 90-Day Warranty ✓ All Fujitsu Models

Open 9 AM – 9 PM · 7 days · ₹350 inspection fee (refunded if you proceed with repair)

Technician probing a computer motherboard with a multimeter and soldering iron Technician inspecting a laptop motherboard under a microscope at the repair bench
Xigox technicians at the repair bench
Symptom Checker

Is Your Fujitsu Device Showing These Signs?

Common symptoms of Laptop USB Ports Not Working on Fujitsu devices. Recognise 2 or more? Book a ₹350 inspection (refunded if you proceed with repair) now.

Charging cable doesn't stay securely connected

Laptop won't charge even with original charger

Battery percentage not increasing while plugged in

Charging port physically damaged or bent

Charger or charging port gets unusually hot

Charging only works at certain cable angles

Don't Delay — Laptop USB Ports Not Working Gets Worse Over Time

Unaddressed hardware issues worsen and can lead to secondary damage, escalating repair costs significantly.

Book Inspection (₹350)
Root Cause Analysis

Why Does Laptop USB Ports Not Working Happen on Fujitsu Devices?

Knowing the root cause ensures a precise repair — not just a temporary fix.

Physical Wear

Repeated plug/unplug cycles wear out charging port pins and the internal connector socket.

Dust & Debris

Lint, dust and foreign particles accumulate inside the port, blocking electrical contact.

Power Surge

Voltage spikes from faulty chargers or unstable power supply damage the charging IC.

Mechanical Damage

Inserting cables at wrong angles or with force bends or breaks port pins internally.

Cost Estimate

Fujitsu Laptop USB Ports Not Working Repair Cost in Kaman Road

Transparent pricing · ₹350 inspection fee (refunded if you proceed with repair) first · Pay only after approval

Repair TypeEstimated CostWarranty
Port Cleaning & Re-solder ₹299 - ₹699 1 Month
Port Cleaning & Re-solder ₹299 - ₹699 1 Month
Port Cleaning & Re-solder ₹299 - ₹699 1 Month
Port Cleaning & Re-solder ₹299 - ₹699 1 Month
Port Cleaning & Re-solder ₹299 - ₹699 1 Month
Port Cleaning & Re-solder ₹299 - ₹699 1 Month

Final cost confirmed after ₹350 inspection (refunded if you proceed with repair). Work starts only with your approval.

Get Exact Quote

Why Us?

Why Choose Xigox for Fujitsu Laptop USB Ports Not Working in Kaman Road?

With 1,00,000+ successful repairs and a 4.9-star rating, Xigox is Kaman Road's most trusted independent Fujitsu repair specialist. Conveniently located near Bhiwandi.

Component-Level Repairs

We repair Fujitsu hardware at chip and board level where it's safe to do so — often a fraction of a full-module swap.

Brand-Trained Technicians

Our engineers are specifically trained on Fujitsu hardware — not generalists. Every repair is precise.

Genuine & OEM-Grade Parts

We use genuine Fujitsu parts wherever available; otherwise OEM-certified compatible components.

90-Day Parts Warranty

Every repair backed by a written 90-day warranty. Same fault recurs? We fix it free of charge.

Same-Day Turnaround

Most Fujitsu Laptop USB Ports Not Working jobs in Kaman Road are completed same-day. Urgent service available for critical cases.

Full Transparency

We quote before starting work. No hidden fees. You pay exactly what you were quoted.

1,00,000+
Repairs Completed

Since 2011

4.9 ★
Average Rating

9,727+ reviews

90 Days
Repair Warranty

Parts & labour

30 Min
Avg Response

For common issues

Free
Pickup & Drop

₹350 inspection fee

2011
Est. Since

15+ yrs in Palghar

Who repairs your device

Repaired in-house by Xigox technicians

Your Fujitsu is handled by Xigox technicians from start to finish. It is never handed on to another shop. Work that needs the repair bench is done at our workshop in Virar West.

Board-level faults are traced with a microscope, a multimeter and a soldering station before any part is replaced, and parts are fitted only after you approve the quote.

We don't open your personal files during a repair. When a job needs access to your data, such as data recovery or a Windows reinstall, we ask you first.

  • Repaired in-house, not outsourced
  • Quote approved by you before work starts
  • Your files stay private
  • Microscope and board-level tools
  • Genuine or OEM-grade parts
  • 90-day warranty on repairs
Technician inspecting a laptop motherboard under a microscope at the repair bench Technician testing a laptop mainboard with a multimeter beside a Xigox-branded monitor Technician brushing dust off an opened laptop motherboard with a cleaning brush Technician inspecting a laptop motherboard under a microscope at the repair bench
Xigox technicians at the repair bench.
Our Process

How We Fix Fujitsu Laptop USB Ports Not Working

Step-by-step from booking to delivery — complete transparency, no surprises

01

Tell Us the Problem

Call, WhatsApp or book online. Tell us about the Laptop USB Ports Not Working on your Fujitsu laptop or computer in Kaman Road. No technical expertise needed.

02

Free Pickup & Drop

We pick up your Fujitsu laptop or computer from your Kaman Road address at no transport cost. Bring it to us or we come to you.

03

₹350 Inspection

A Fujitsu specialist examines your laptop or computer and identifies the exact root cause of the Laptop USB Ports Not Working. Full written report provided — ₹350 fee refunded if you proceed with repair.

04

Transparent Quote

We share a detailed repair quote. Work begins only after your explicit approval — no hidden charges, no surprises.

05

Professional Repair

Our engineers fix the Laptop USB Ports Not Working using OEM-grade Fujitsu parts. A 12-point quality checklist is completed before your laptop or computer is returned.

06

90-Day Warranty + Delivery

Your Fujitsu laptop or computer is returned to your Kaman Road address with a written 90-day warranty. Same fault recurs? We fix it free of charge.

Customer reviews

What Customers Say About Fujitsu Laptop USB Ports Not Working in Kaman Road

4.9/5 · 12 reviews shown

See all 9,727+ reviews

Fujitsu laptop — Fujitsu Charging Port Repair

“Fujitsu Charging Port Repair on my Fujitsu laptop was completed same day with fair, transparent pricing.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

S Sanjana Rao Bandra · 1 Aug 2026 3

Fujitsu laptop — Fujitsu Data Recovery

“Needed Fujitsu Data Recovery for my Fujitsu laptop — Xigox technicians handled it professionally with a warranty.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

D Devansh Gupta Borivali · 31 Jul 2026 4

Fujitsu laptop — Fujitsu Touchpad Replacement

“Needed Fujitsu Touchpad Replacement for my Fujitsu laptop — Xigox technicians handled it professionally with a warranty.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

D Devansh Gupta Borivali · 16 Jul 2026 9

Fujitsu laptop — Fujitsu Keyboard Repair

“Needed Fujitsu Keyboard Repair for my Fujitsu laptop — Xigox technicians handled it professionally with a warranty.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

T Tanvi Bhatt Goregaon · 26 Jul 2026 9

Fujitsu laptop — Fujitsu Motherboard Repair

“Wasn't sure Xigox serviced my Fujitsu Motherboard Repair, but they were fully equipped for the Fujitsu laptop and fixed it fast.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

S Simran Kaur Kandivali · 24 Jul 2026 11

Fujitsu laptop — Fujitsu RAM Upgrade

“Booked Fujitsu RAM Upgrade for my Fujitsu laptop online. Doorstep pickup and clear communication throughout.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

V Vikram Oberoi Mulund · 20 Jul 2026 5
Page 1 / 2

← Swipe or tap dots to browse →

Repair examples

Recently Repaired Laptops

View All Recent Repairs

Acer

Aspire 5 A515

Fixed
Issue
Laptop extremely slow with original 1TB HDD. Boot time over 3 minutes.
Solution
Upgraded to 512GB NVMe SSD. Cloned all data. Installed fresh Windows 11 with drivers. Boot time reduced to 8 seconds.

Technician's note

HDD was healthy — kept as secondary storage. Massive performance improvement.

Dadar West 2 Hours
  • SSD
  • Acer
  • Upgrade

MacBook

Air M2

Fixed
Issue
Water spilled on keyboard. Laptop dead, no response to charger. Corrosion visible on logic board.
Solution
Ultrasonic cleaning of logic board. Replaced 2 corroded ICs and damaged keyboard flex cable. Full functionality restored.

Technician's note

Water had not reached SSD — all data intact. Board-level repair saved customer from logic board replacement.

Malad West 6 Hours
  • Water Damage
  • MacBook
  • Board Repair

HP

Pavilion x360

Fixed
Issue
Right hinge broken, screen wobbling. Back panel cracked near hinge mount.
Solution
Replaced both hinges with reinforced metal hinges. Repaired back panel crack with epoxy bonding.

Technician's note

Common issue in x360 convertible models. Both hinges replaced for balanced tension.

Goregaon West 2 Hours
  • Hinge
  • HP
  • Convertible

ASUS

VivoBook 15

Fixed
Issue
Laptop dead — no power, no charging LED. Other repair shops quoted motherboard replacement.
Solution
Diagnosed failed power IC using multimeter. Replaced IC at chip level. Laptop boots and charges normally.

Technician's note

Power surge damaged the charging IC. Recommended using a surge protector.

Powai 4 Hours
  • Motherboard
  • ASUS
  • Chip-Level

Lenovo

ThinkPad E14

Fixed
Issue
Multiple keys not responding after tea spill. Keyboard backlight also stopped working.
Solution
Replaced full keyboard module with backlit variant. Cleaned internal membrane and tested all keys.

Technician's note

Tea had corroded the membrane. Internal components were safe from further damage.

Thane West 1.5 Hours
  • Keyboard
  • Lenovo
  • Spill

HP

Pavilion 14

Fixed
Issue
Battery swollen causing trackpad to push up. Laptop only running 20 minutes on battery.
Solution
Safely removed swollen battery, replaced with BIS-certified cell. Battery health restored to 100%.

Technician's note

Battery was 3 years old, exceeded cycle count. Recommended charging between 20-80%.

Bandra West 1 Hour
  • Battery
  • HP
  • Swollen

FAQ

FAQs — Fujitsu Laptop USB Ports Not Working in Kaman Road

Everything you need to know before booking your inspection

10 questions answered

Every repair at Xigox — including Fujitsu Laptop USB Ports Not Working fixes — is covered by a 90-day warranty. If the same problem recurs within 90 days, we repair it free of charge. Our warranty is provided in writing and applies to all repairs across Kaman Road and Mumbai MMR. We also serve Ambadi Road, Sativali, Evershine City, so you can recommend us to neighbours too.
The cost to fix Fujitsu Laptop USB Ports Not Working in Kaman Road varies by laptop model and severity. Xigox charges ₹350 for inspection — refunded if you proceed with the repair. A transparent written quote before any work begins. You're never charged until you approve the repair — no hidden fees, ever. We've been serving Palghar district for over 15 years.
Xigox repairs Fujitsu Laptop USB Ports Not Working on Apple, Dell, HP, Lenovo, Asus, Acer, MSI, Microsoft, Samsung and Toshiba, and more. Our engineers are trained on brand-specific procedures and we stock genuine-grade parts for the most common models, so most repairs in Kaman Road are completed the same day. Customers across Kaman Road (401208) enjoy priority same-day scheduling.
It depends on the age and value of the laptop. As a rule, if the repair costs less than a third of a comparable replacement and the rest of the hardware is healthy, repairing is worth it. After the inspection we tell you the honest repair cost and what a replacement would run, so the comparison is yours to make — we do not push a repair that is not worth doing. Free pickup also available in Ambadi Road, Sativali, Evershine City and surrounding areas.
No. For any laptop that still powers on we take a full backup before touching the hardware, and for units that do not, we attempt recovery before repair. Your data is never accessed beyond what the repair requires, and nothing is copied off-site. Customers near Bhiwandi in Kaman Road get our fastest response times.
For part replacements our technician works at your address in Kaman Road. Fujitsu Laptop USB Ports Not Working that traces back to the board needs microscope and hot-air rework, so that job comes to the lab — with free pickup and drop either way. We tell you which category yours is before you commit. Free pickup also available in Ambadi Road, Sativali, Evershine City and surrounding areas.
You bring it straight back. The same fault inside 90 days is covered under warranty — no second inspection fee, no diagnostic charge, no argument. The cover is there in writing so you do not have to just take our word for it. We've been serving Palghar district for over 15 years.
We use OEM or OEM-grade components and tell you which one your quote covers before work starts. We do not fit unbranded aftermarket parts or recycled pulls sold as new — part quality is the single biggest factor in whether a laptop repair lasts, so it is not somewhere we cut cost. Our service covers the full 401208 postal area in Kaman Road.
That is what the ₹350 inspection is for. Symptoms overlap constantly — the same visible behaviour can come from three different components. We test rather than guess, then show you what we found before quoting. If the actual fault turns out to be something cheaper, the quote reflects that. Free pickup also available in Ambadi Road, Sativali, Evershine City and surrounding areas.
Usually not for long. Left alone, most faults of this kind put stress on neighbouring components and turn a contained repair into a board-level one. If you cannot bring it in immediately, tell us the symptoms on WhatsApp and we will tell you honestly whether it can wait a few days or should be powered down now. Our service covers the full 401208 postal area in Kaman Road.

Still have questions?

Send us your question on WhatsApp or call — a technician will answer.

Fujitsu Laptop Repair in Kaman Road — Xigox

Xigox is Kaman Road's leading independent specialist for Fujitsu Laptop repair. Our engineers are not generalists — they undergo dedicated training on Fujitsu hardware, firmware and diagnostics. Since 2011, we have completed over 1,00,000+ repairs across all Fujitsu product lines, earning a 4.9-star average customer rating.

Every Fujitsu component we fit is OEM-grade and batch-tested before it goes into your Laptop — no aftermarket substitutes, no recycled pulls sold as new. You see the part cost and the labour cost separately on the estimate before we start, and the ₹350 inspection comes off the bill if you go ahead.

We actively serve the entire 401208 postal area within Palghar district, ensuring same-day response for every repair request. ₹350 inspection fee (refunded if you proceed with repair). Located near Bhiwandi, our service coverage extends across Kaman Road and all surrounding localities. In addition to Kaman Road, we also provide doorstep repairs and free pickup for lab work for customers in Ambadi Road, Sativali, Evershine City and other nearby areas.

How your Fujitsu Laptop gets serviced depends on the fault. Part swaps happen on-site anywhere in Kaman Road; board-level work goes to the bench because it needs proper rework equipment. Either way collection and return are free, and you get progress updates rather than having to chase us.

Your Fujitsu Laptop leaves with a written 90-day warranty covering both parts and labour. Same fault back inside that window and we redo it free — no argument, no diagnostic fee. WhatsApp support stays open afterwards for any question about the repair.

Service Hours

Monday – Sunday · 9 AM – 9 PM

Open on all public holidays

Service Area

Kaman Road & surrounding Mumbai areas

Doorstep repairs + free pickup for lab work

Contact Us

+91 74997 61196

info@xigox.com

Our Guarantee

90-day warranty on all repairs

Free re-repair if same fault recurs

Product lines

Fujitsu Models We Repair for Laptop USB Ports Not Working repair in Kaman Road

At our bench we handle Laptop USB Ports Not Working repair on the Fujitsu LifeBook range; the models are listed below.

Fujitsu LifeBook

The Fujitsu LifeBook A-Series is part of Fujitsu's LifeBook A-Series — Fujitsu's mainstream, value-oriented business laptop line.

Fujitsu LifeBook A-Series

Laptop USB Ports Not Working Repair for All Fujitsu Models in Kaman Road

Select your specific Fujitsu model for a more targeted diagnosis page

Laptop USB Ports Not Working Repair for Other Brands in Kaman Road

We fix Laptop USB Ports Not Working across all major laptop and computer brands with the same quality and warranty

Areas, Roads & Landmarks We Cover in Kaman Road

Free pickup & drop across all these neighbourhoods

Localities & neighbourhoods

  • Kaman
  • Vasai East
  • Bhiwandi

Roads & highways

  • Kaman Road
  • NH-48
  • Vasai-Bhiwandi Road

Landmarks & famous places

  • Kaman Village
  • Kaman Junction
  • Vasai East Station (nearby)

Fujitsu Laptop USB Ports Not Working Repair Near Kaman Road

Free doorstep service available in all these nearby areas

Fujitsu Laptop USB Ports Not Working Repair — All Locations

Explore more services

More Repair & Tech Services Near Kaman Road

Same technicians · Free pickup · 90-day warranty across all services.

₹350 Inspection (refunded if you proceed with repair) · 1,00,000+ Repairs · 4.9 ★ · 90-Day Warranty

Fix Your Fujitsu Device's
Laptop USB Ports Not Working Today

₹350 Inspection (refunded if you proceed with repair) · Expert repair for Laptop USB Ports Not Working · 90-day warranty

Serving Kaman Road and all of Mumbai MMR · Open 9 AM – 9 PM daily

Comparison

Xigox vs Other Fujitsu Laptop USB Ports Not Working Shops in Kaman Road

What you get with Xigox in Kaman Road, side by side.

FeatureXigoxOther Shops
Certified Technicians Trained & Verified Unverified
Genuine / OEM Parts OEM-Quality Parts May Vary
90-Day Warranty Written Certificate0–30 Days
₹350 Inspection (refunded if you proceed with repair) Always Free May Charge
Same-Day Turnaround Kaman Road — Most Repairs 1–3 Days
Free Doorstep Pickup Kaman Road — Free Visit Required
Transparent Pricing Written Quote First Surprise Bills
Live WhatsApp Updates Real-time Repair Status No Updates

Xigox charges ₹350 for inspection — credited to your repair cost if you go ahead.

Fujitsu Laptop USB Ports Not Working Repair in Kaman Road — Professional, Reliable, and Affordable

Skip the directories. Book direct for transparent pricing with Xigox. Seeking reliable Fujitsu Laptop USB Ports Not Working Repair in Kaman Road? Look no further. At Xigox, our expert technicians deliver reliable Fujitsu Laptop USB Ports Not Working Repair for residents and businesses in Kaman Road. We understand how frustrating a broken Fujitsu can be, so we offer same-day pickup and drop in Kaman Road.

Genuine Parts for Fujitsu Laptop USB Ports Not Working Repair

Reliability matters for this issue. Because of this, our team strictly use original-specification parts for your Fujitsu. Instead of counterfeit components, we use trusted supply chains. This guarantees your issue will last, supported by our standard 90-day warranty.

Warranty & After-Service for Fujitsu Laptop USB Ports Not Working Repair

Each repair completed by Xigox in Kaman Road comes with a comprehensive three-month warranty on parts and labour. That means, if anything goes wrong within 3 months, we fix it at zero extra cost. You get a written warranty card with every repair, so the terms are clear.

Top-Rated Fujitsu Laptop USB Ports Not Working Repair in Kaman Road

You have options in Kaman Road, but Xigox is the preferred choice for this issue. Our core values include total honesty. Every issue starts with a detailed hardware check costing just ₹350, refunded if you proceed. No hidden charges — just professional issue in Kaman Road.

Emergency Fujitsu Laptop USB Ports Not Working Repair Now

Need your Fujitsu fixed urgently? Xigox offers priority the repair in Kaman Road for critical situations. From an exam deadline and your Fujitsu just crashed, our emergency service ensures your Fujitsu is repaired within the same business day. Emergency the repair can be arranged including weekends in Kaman Road. Just say 'priority' when calling and our team will fast-track your repair immediately.

How the Fujitsu Laptop USB Ports Not Working Repair Process Works

Getting your Fujitsu fixed in Kaman Road is designed to be hassle-free. First, message us at +91 74997 61196 sharing your issue. Then, our free pickup technician arrives at your Kaman Road address within the same day. Our engineers then perform a detailed diagnostic (₹350, refunded if you proceed). After your approval, this issue is completed with OEM-grade parts — and your Fujitsu is delivered back to you. Total turnaround: 24-48 hours.

Trained Technicians for Fujitsu Laptop USB Ports Not Working Repair in Kaman Road

Not everyone in Kaman Road can handle complex the repair. Xigox's engineers undergo rigorous training specifically for Fujitsu hardware. Whether it's a minor fix or advanced component-level motherboard repair, we fix it properly right here for Kaman Road clients.

Transparent Inspection in Kaman Road

Not sure what's wrong with your Fujitsu? Before you commit to any issue, Xigox conducts a comprehensive hardware inspection. While we charge a nominal ₹350, this amount is fully refunded when you approve the quote. Our technicians in Kaman Road will explain the exact fault clearly so you can make an informed decision.

Multi-Point Inspection after Fujitsu Laptop USB Ports Not Working Repair

Fixing the immediate problem is only half the job at Xigox. Prior to delivery in Kaman Road, it must pass a comprehensive 20-point quality check. Our team ensures that the repair was 100% successful, checking wi-fi connectivity. This level of testing is the reason for our 4.9★ rating across Kaman Road.

Eco-Friendly Fujitsu Laptop USB Ports Not Working Repair Practices in Kaman Road

At Xigox, we care about sustainability in Kaman Road. Instead of throwing away your damaged Fujitsu, our professional issue restores it to full working order. We responsibly recycle broken components in line with e-waste rules. By choosing our workshop, you help protect the planet.

After-Repair Care for Fujitsu Laptop USB Ports Not Working Repair

Your repair doesn't end when the Fujitsu is returned. Our support line is available daily via call or message. If you notice anything unusual in the post-repair period, just reach out and we dispatch a technician immediately. This promise is why Kaman Road customers choose Xigox again and again.

Technology keeps your life running — protect it with a dependable Fujitsu Laptop USB Ports Not Working Repair team. Xigox looks after customers across Mumbai, Thane and Palghar with transparent billing. Need a quick fix? WhatsApp us at +91 74997 61196 for priority Fujitsu Laptop USB Ports Not Working Repair in Kaman Road.

Service area

Fujitsu Laptop USB Ports Not Working Repair in Kaman Road — Service Area & Coverage

Xigox provides fujitsu laptop usb ports not working repair across Kaman Road (PIN 401208), in the Palghar district of Kaman. Our doorstep pickup and on-site service cover the entire Kaman Road area and the neighbourhoods around it.

Localities we cover in Kaman Road: Kaman, Vasai East, Bhiwandi. Wherever you are in Kaman Road, we can collect your device from your door and bring it back after the repair.

Our technicians regularly serve homes, societies and offices around Kaman Village, Kaman Junction and Vasai East Station (nearby), and along Kaman Road, NH-48 and Vasai-Bhiwandi Road. If you're near any of these landmarks, same-day pickup for fujitsu laptop usb ports not working repair is almost always available.

Fujitsu Laptop USB Ports Not Working Repair near Kaman Road

We also serve these nearby areas — tap your locality for local fujitsu laptop usb ports not working repair:

Fujitsu Laptop USB Ports Not Working Repair price in Kaman Road — know it before you book

  1. 1Pick your device & issue
  2. 2See the real price range
  3. 3Free doorstep pickup in Kaman Road

4.9 from 9,727 customer reviews across all repairs · upfront pricing · 90-day warranty

Before you book: have your device model and a quick description of the issue ready — it speeds up your quote.

Not sure what's wrong?

Find Your Fix by Symptom

Tell us what your device is doing — we'll point you to the right repair, with real pricing and next steps.

See all repair problems we fix

Nearest pickup point: Bhayandar West

~7.8 km from Kaman Road. With free doorstep pickup you don't need to travel — this is our nearest pickup point.

Book a repair

Fujitsu Laptop USB Ports Not Working Repair — Book Now

Free pickup · Genuine parts · 90-day warranty

Booking received

We'll call you within 1 hour to confirm your appointment and arrange doorstep pickup.

Inspection fee: ₹350

  • Credited to your total repair cost if you go ahead.
  • Still applies if the device can't be repaired or you decline the repair.

+91

Device type *

Inspection fee: ₹350

  • If you go ahead with the repair, the ₹350 is credited to your total repair cost.
  • If the device can't be repaired or you decide not to continue, the ₹350 inspection fee still applies.

Your details are used only to arrange this repair. By submitting, you agree to our Privacy Policy.

Call WhatsApp