Skip to main content
MSI · Modern AM242 AIO · Kelve Naka

MSI Modern AM242 AIO
Laptop Virus Infection
in Kelve Naka

Expert diagnosis and repair for Laptop Virus Infection on your MSI Modern AM242 AIO in Kelve Naka. 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
WhatsApp to Book Inspection +91 74997 61196

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

Free
Diagnosis
90 Days
Repair Warranty
Same-Day
Turnaround
Free
Doorstep Pickup
OEM
Quality Parts
4.9 ★
Customer Rating
Same Day Repair 90-Day Warranty Genuine Parts Transparent Pricing Walk-in Welcome Free Pickup & Drop Since 2011 4.9/5 Rated ISO 9001:2015 Certified Same Day Repair 90-Day Warranty Genuine Parts Transparent Pricing Walk-in Welcome Free Pickup & Drop Since 2011 4.9/5 Rated ISO 9001:2015 Certified
Symptom Checker

Does Your MSI Modern AM242 AIO Show These Signs?

Common indicators of Laptop Virus Infection on MSI Modern AM242 AIO. Recognise 2 or more? Your laptop or computer needs professional attention.

Laptop clearly shows signs of Laptop Virus Infection

Normal laptop performance significantly impacted

Issue worsening with continued use over time

Standard troubleshooting has not resolved it

Laptop unreliable for daily work or personal use

Risk of further hardware damage if left unrepaired

Don't Ignore Laptop Virus Infection

Unresolved hardware problems worsen over time and can cause secondary damage — increasing repair cost significantly.

Book Inspection (₹350)

MSI Modern AM242 AIO Laptop Virus Infection in Kelve Naka in Kelve Naka — Comprehensive Guide

Don't waste time on booking portals. Reach the engineers directly with Xigox. Windows licensing faults after a motherboard repair or hardware change in Kelve Naka can lock you out of your own system. Xigox's Kelve Naka software engineers restore genuine Windows activation correctly — without purchasing a new key in most cases. Laptop Virus Infection in Kelve Naka always uses only legitimate licensed methods.

Guaranteed Protection for Laptop Virus Infection

Each Laptop Virus Infection performed by Xigox in Kelve Naka comes with a comprehensive 90-day warranty covering parts and labour. Simply put, if the same issue recurs within 90 days, we redo it completely free. Other services in Kelve Naka won't back their work — Xigox provides a printed warranty receipt every single time.

Free Logistics across Kelve Naka

Navigating traffic in Kelve Naka can be a nightmare. To solve this, Xigox offers a smooth doorstep logistics service for Laptop Virus Infection. Just drop your pin, and our secure courier will collect your MSI Modern AM242 AIO directly from you. Once the Laptop Virus Infection is finished, we safely return it in protective packaging. Enjoy total convenience without leaving your desk.

Trained Technicians for Laptop Virus Infection in Kelve Naka

Not all shops in Kelve Naka has the skills for complex Laptop Virus Infection. Our technicians undergo rigorous training dealing with MSI Modern AM242 AIO hardware. From basic part swaps to complex micro-soldering, we handle it all right here for Kelve Naka clients.

Any MSI Modern AM242 AIO, Any Brand in Kelve Naka

Your MSI Modern AM242 AIO model never limits what we can fix. Our Kelve Naka technicians are trained across all major brands: HP, Dell, Lenovo, Asus, Acer, MSI, Toshiba, Samsung, Sony VAIO, and Apple MacBook. Different manufacturers have unique design choices — Lenovo's ThinkPad keyboard — and we account for these in every repair. Model-specific experience cuts diagnostic time and improves first-time fix rates.

The Best Choice for Laptop Virus Infection in Kelve Naka

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

Authentic Components for Laptop Virus Infection

Reliability matters for Laptop Virus Infection. That's why our Kelve Naka team exclusively uses original-specification parts for your MSI Modern AM242 AIO. Compared to local shops in Kelve Naka that use counterfeit components, we use trusted supply chains. This ensures your Laptop Virus Infection is durable, backed by our written 90-day warranty.

Fast & Easy Laptop Virus Infection in Kelve Naka

We know your time is valuable in Kelve Naka. Xigox's Laptop Virus Infection is built for maximum convenience. For most issues, our Kelve Naka technicians finish the Laptop Virus Infection within hours. We arrange secure collection from your Kelve Naka home or office, perform the Laptop Virus Infection at our certified lab, and deliver it back to you.

Our Laptop Virus Infection Process Step by Step

Getting your MSI Modern AM242 AIO fixed in Kelve Naka is incredibly straightforward. Step 1, call or WhatsApp us at +91 74997 61196 to describe your issue. Next, our complimentary collection driver arrives at your Kelve Naka doorstep within 1–2 hours. The team then carry out a thorough diagnostic (₹350, credited toward your repair). Once you agree, Laptop Virus Infection is executed with genuine parts — and your MSI Modern AM242 AIO is returned to you. Most repairs done same day.

Enterprise Laptop Virus Infection in Kelve Naka

Businesses across Kelve Naka trust our Laptop Virus Infection to maintain productivity. We offer AMC agreements, priority SLA turnaround, and a single point of contact. From a small team or an entire floor, Xigox manages Laptop Virus Infection for your Kelve Naka workspace with GST invoices and complete service reports.

Trusted by Kelve Naka for Laptop Virus Infection

Don't just take our word for it. Xigox has earned a near-perfect rating across Google with over 800 verified reviews from real users. Customers frequently mention: no surprise charges, same-day completion, and OEM-grade replacements. A recent Kelve Naka customer stated: "Fixed my MSI Modern AM242 AIO in 4 hours. Will definitely return." Join the 10,000+ community of satisfied Xigox customers in Kelve Naka.

Don't gamble with cheap, unverified repairers in Kelve Naka. Xigox combines certified engineers, OEM-grade spares, upfront pricing, and a real warranty on every Laptop Virus Infection. Book your Laptop Virus Infection today — call or WhatsApp +91 74997 61196 for same-day service in Kelve Naka.

Root Cause Analysis

What Causes Laptop Virus Infection on MSI Modern AM242 AIO?

Understanding the root cause helps our engineers perform a precise, lasting repair — not just a temporary patch.

Physical Damage

Accidental drops, pressure or impact causing mechanical damage to internal components.

Liquid Exposure

Water, beverages or humidity causing short circuits or corrosion on circuit boards.

Normal Wear & Tear

Components degrade naturally with regular use — batteries, connectors and hinges are most affected.

Manufacturing Defect

Factory faults that surface after the warranty period in certain production batches.

Cost Estimate

Repair Cost for MSI Modern AM242 AIO Laptop Virus Infection

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

Repair TypeEstimated CostWarranty
Laptop Virus Infection Repair ₹199 90 Days
Laptop Virus Infection Repair ₹199 90 Days
Laptop Virus Infection Repair ₹199 90 Days
Laptop Virus Infection Repair ₹199 90 Days
Laptop Virus Infection Repair ₹199 90 Days
Laptop Virus Infection Repair ₹199 90 Days

Inspection fee ₹350 — refunded if you proceed with repair. No work starts without your approval.

Get Exact Quote
Why Us?

Why Choose Xigox for MSI Computer / Laptop Repair in Kelve Naka?

With 1,00,000+ successful repairs and a 4.9-star rating, Xigox is Kelve Naka's most trusted independent MSI repair specialist. Conveniently located near Kelve Naka.

Brand-Trained Technicians

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

Genuine & OEM-Grade Parts

We use genuine MSI 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 MSI repairs in Kelve Naka 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.

Lifetime Post-Repair Support

Free WhatsApp support for any questions about your MSI Computer / Laptop after repair — always.

1,00,000+
Repairs Completed
Since 2011
4.9 ★
Average Rating
44,883+ 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
Our Repair Facility

Real Technicians. 100% Guaranteed Work.

Most online repair websites outsource your laptop or computer to random local shops. Xigox operates its own fully-equipped repair labs with dedicated BGA reballing stations and microscopic soldering equipment. When you trust us with MSI Modern AM242 AIO, it stays securely in our controlled environment.

Every technician at Xigox is in-house trained and certified — no freelancers, no third-party sub-contractors. We invest in continuous training so our engineers stay ahead of the latest chipsets, display technologies, and component architectures.

Our lab follows strict data-confidentiality protocols. Your personal files, passwords, and accounts are never accessed during repair — guaranteed.

No Third-Party Outsourcing Strict Data Confidentiality Micro-Soldering Equipment Certified Engineers Only CCTV-Monitored Lab Genuine OEM-Grade Parts
Talk to a Technician WhatsApp Us
Technician diagnosing MSI Modern AM242 AIO Repair in Xigox Mumbai lab
Specialist Logic Board MSI Modern AM242 AIO Repair at Xigox repair facility
Xigox repair lab workbench — MSI Modern AM242 AIO Repair
Inside Xigox certified repair centre — MSI Modern AM242 AIO Repair
Our Process

How We Fix MSI Modern AM242 AIO Laptop Virus Infection

A transparent, step-by-step process from booking to delivery — nothing hidden

01

Describe Your Issue

Call or WhatsApp +91 74997 61196. Tell us about the Laptop Virus Infection on your MSI Modern AM242 AIO in Kelve Naka — no technical jargon required.

02

Free Doorstep Pickup

We dispatch a certified technician to your Kelve Naka address. Free pickup — no travel, no hassle, no waiting at a service centre.

03

Expert Diagnosis

Your MSI Modern AM242 AIO is inspected by a specialist. We identify the root cause of the Laptop Virus Infection and provide a written quote — zero obligation.

04

Approved Repair

Once you approve the quote, we fix the Laptop Virus Infection using OEM-grade parts. No work starts without your explicit consent.

05

12-Point QA Check

Every repaired MSI Modern AM242 AIO passes a rigorous 12-point quality assurance checklist. We verify the Laptop Virus Infection is fully and permanently resolved.

06

Delivery + 90-Day Warranty

Your MSI Modern AM242 AIO is returned to your Kelve Naka address with a written 90-day warranty certificate. Same fault recurs? Fixed free.

Book Free Pickup Now
Verified Customer Reviews

What Customers Say About MSI Modern AM242 AIO Laptop Virus Infection in Kelve Naka

4.9/5 · 12 Reviews

Real customers · No paid reviews · All verified repairs

Google
MSI PRO AP242 AIO — Touchscreen Fix

"Touchscreen on my MSI PRO AP242 AIO had unresponsive areas across the bottom third. Xigox Churchgate replaced the digitizer without removing the entire display panel. Full touch responsiveness restored. Impressive technical skill for integrated devices."

T
Tejas Bhat
📍 Kelve Naka · 12 Sep 2025
10
Google
MSI PRO AP242 AIO — USB Port Fix

"Two USB ports on my MSI PRO AP242 AIO stopped working completely. Xigox Churchgate traced the issue to a blown fuse on the I/O board and replaced it. All ports working perfectly now. Board-level diagnostics at their best."

N
Nikhil Pandey
📍 Kelve Naka · 23 Apr 2024
19
Google
MSI PRO AP242 AIO — WiFi Fix

"WiFi on my MSI PRO AP242 AIO was extremely unreliable and kept dropping during video calls. Xigox Churchgate replaced the internal wireless card and antenna module. Strong, stable connection now in every room of my house."

V
Vikram Patel
📍 Kelve Naka · 6 Nov 2024
27
Google
Acer Veriton Z AIO — AIO Data Recovery

"My Acer Veriton Z AIO crashed and refused to boot with four years of files inside. Xigox Churchgate recovered every single file from the damaged drive, installed a new SSD, and restored everything. Set up cloud backup too. Lifesaver."

M
Meenal Agarkar
📍 Kelve Naka · 21 Dec 2025
4
Google
Acer Aspire C27-1700 — Storage Speed Upgrade

"Upgraded my Acer Aspire C27-1700 from HDD to NVMe SSD at Xigox Churchgate. Delicate disassembly of the all-in-one chassis done expertly. Boot time dropped from three minutes to eight seconds. Incredible transformation for an easy upgrade."

Y
Yogesh Bhosale
📍 Kelve Naka · 9 Jun 2025
13
Google
Acer Aspire C24-1750 — Logic Board Fix

"My Acer Aspire C24-1750 stopped powering on after a voltage fluctuation. Xigox Churchgate did chip-level repair on the power regulation circuit instead of full board replacement. Saved me thousands. Working perfectly for two months now."

R
Ravi Shankar
📍 Kelve Naka · 17 Jul 2024
40
Page 1 / 2

← Swipe or tap dots to browse →

See All 44,883+ Reviews 💬 Book Now Like They Did
WATCH & LEARN

Watch How We Handle Laptop & Computer Repairs

Step-by-step repair videos by our ISO-certified technicians

Inside Xigox — Computer & Laptop Repair Service Centre, Mumbai
Featured

Inside Xigox — Computer & Laptop Repair Service Centre, Mumbai

Laptop & Computer Repair, Sales & Data Recovery — Xigox

Laptop & Computer Repair, Sales & Data Recovery — Xigox

How the Xigox team handles laptop and computer repair, sales, service and data recovery across Mumbai, Bangalore and Hyderabad.
Xigox Laptop & Computer Repair — Real Customer Experience

Xigox Laptop & Computer Repair — Real Customer Experience

See how Xigox handles real customer repairs — fast diagnosis, transparent pricing and a 90-day warranty on every job.
Xigox Service Centre — Mumbai's Trusted Repair Experts

Xigox Service Centre — Mumbai's Trusted Repair Experts

A closer look at the Xigox team, our tools, and the repair process that has earned us 29,000+ five-star reviews across Mumbai MMR.

Subscribe on YouTube @xigox

Full repair tutorials, tips & behind-the-scenes footage

Watch Our Real Repair Reels

@xigox on Instagram — screen repairs, motherboard fixes, before & afters

Follow @xigox
Reel
🖥️

Screen Replacement

Cracked screen → brand new in 30 min
Reel
🔋

Battery Replacement

0% health → 100% — same day
Reel
🔧

Motherboard Repair

Chip-level soldering under microscope
Reel
💾

Data Recovery

Files rescued from dead hard drive
Reel
🍎

MacBook Repair

Liquid damage — full restore
Reel
🖨️

Printer Repair

Paper jam to perfect print — see how

Real repair footage — no actors, no scripts

Watch all Reels →
FAQs

FAQs — MSI Modern AM242 AIO Laptop Virus Infection in Kelve Naka

Everything you need to know before booking a diagnosis

8 questions answered Verified & updated
Yes — Xigox specialises in Laptop Virus Infection across Kelve Naka. Our certified technicians diagnose and fix the problem efficiently, using OEM-quality parts and backed by a 90-day warranty. Free doorstep pickup is available in Kelve Naka — call or WhatsApp +91 74997 61196. We also serve Kelve Road Station, Kelve Beach, Shirgaon Palghar, so you can recommend us to neighbours too.
Ask on WhatsApp Call Now
Most Laptop Virus Infection issues in Kelve Naka are resolved the same day — typically within 2–4 hours of pickup. We provide an accurate time estimate during the ₹350 inspection (refunded if you proceed with repair) so you're never left guessing. We also serve Kelve Road Station, Kelve Beach, Shirgaon Palghar, so you can recommend us to neighbours too.
Common causes of Laptop Virus Infection include physical impact, wear and tear, manufacturing defects, water damage, overheating, or software conflicts. Xigox technicians perform a thorough diagnosis to identify the root cause and fix it permanently rather than applying a temporary patch. We also serve Kelve Road Station, Kelve Beach, Shirgaon Palghar, so you can recommend us to neighbours too.
Every repair at Xigox — including Laptop Virus Infection 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 Kelve Naka and Mumbai MMR. We also serve Kelve Road Station, Kelve Beach, Shirgaon Palghar, so you can recommend us to neighbours too.
The cost to fix Laptop Virus Infection in Kelve Naka varies by laptop or computer 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 also serve Kelve Road Station, Kelve Beach, Shirgaon Palghar, so you can recommend us to neighbours too.
Ask on WhatsApp Call Now
Booking is simple: WhatsApp or call +91 74997 61196, describe your device issue, and receive a free quote. Schedule a doorstep pickup at your convenience — we're available 9 AM–9 PM, 7 days a week. No walk-in required.
Ask on WhatsApp Call Now
Yes — every repair at Xigox comes with a 90-day warranty on the repaired component and all parts used. If the same issue returns within 90 days, we fix it free of charge. Warranty terms are provided in writing at the time of repair.
Yes! Xigox provides completely free doorstep device pickup and delivery across Mumbai, Thane, Vasai-Virar, and Palghar. A technician comes to your home or office, collects your device, repairs it, and returns it — no travel needed.

Still have questions?

Our team responds within 15 minutes on WhatsApp. Send us your question and get expert advice instantly.

Ask on WhatsApp Call +91 74997 61196

MSI MSI Modern AM242 AIO Repair in Kelve Naka — Xigox

Xigox is Kelve Naka's leading independent specialist for MSI MSI Modern AM242 AIO repair. Our engineers are not generalists — they undergo dedicated training on MSI hardware, firmware and diagnostics. Since 2011, we have completed over 1,00,000+ repairs across all MSI product lines, earning a 4.9-star rating from verified customers.

We stock genuine MSI parts and OEM-certified components for every common MSI Modern AM242 AIO fault — from screen replacements and battery swaps to logic board repairs and data recovery. Before any work begins, you receive a written cost estimate. Our ₹350 inspection fee is refunded if you proceed with the repair.

We actively serve the entire 401401 postal area within Palghar district, ensuring same-day response for every repair request. ₹350 inspection fee (refunded if you proceed with repair). Located near Kelve Naka, our service coverage extends across Kelve Naka and all surrounding localities. In addition to Kelve Naka, we also provide doorstep repairs and free pickup for lab work for customers in Kelve Road Station, Kelve Beach, Shirgaon Palghar and other nearby areas.

Doorstep part replacement (battery, keyboard, screen, SSD, RAM) is available across Kelve Naka. For chip-level and motherboard repairs, we provide free pickup and drop — confirming within 15 minutes of your booking. Most common faults are resolved same-day. For complex repairs, we provide a realistic timeline and keep you updated throughout.

Every MSI repair at Xigox is covered by a 90-day warranty on all parts and labour. If the same fault recurs within the warranty period, we fix it at no charge. Our after-repair WhatsApp support means we are always available to answer questions about your MSI MSI Modern AM242 AIO.

Service Hours
Monday – Sunday · 9 AM – 9 PM
Open on all public holidays
Service Area
Kelve Naka & 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

Laptop Virus Infection Repair for Other MSI Models

We diagnose and fix Laptop Virus Infection on all MSI models in Kelve Naka

MSI MSI PRO AP242 AIO

Other MSI Modern AM242 AIO Problems We Fix

Xigox resolves all common MSI Modern AM242 AIO hardware and software issues in Kelve Naka

All-in-One Backlight Failure All-in-One Camera Not Working All-in-One Display Lines All-in-One Fan Noise All-in-One HDD/SSD Failure All-in-One Not Turning On All-in-One Overheating All-in-One Screen Cracked All-in-One Slow Performance All-in-One Speaker Issue All-in-One Touchscreen Not Working All-in-One USB Ports Problem

Laptop Virus Infection on Other Brands in Kelve Naka

We fix Laptop Virus Infection on all major all_in_one brands — same quality, same warranty

Acer Apple ASUS Dell HP Lenovo Microsoft Samsung

Areas, Roads & Landmarks We Cover in Kelve Naka

Free pickup & drop across all these neighbourhoods

📍 Localities & Neighbourhoods

Kelve Naka Kelve Road Palghar

🛣️ Roads & Highways

Kelve Naka Road NH-48 (Mumbai-Ahmedabad Highway) Kelve Station Road

⭐ Landmarks & Famous Places

Kelve Naka Junction Kelve Road Station Mahim Devi Temple (nearby)

MSI Modern AM242 AIO Laptop Virus Infection Repair Near Kelve Naka

Free doorstep service available in all these nearby areas

Kelve Road Station
0.1 km away
Kelve Beach
0.6 km away
Shirgaon Palghar
3.2 km away
Mahim Palghar
4.1 km away
Shreenagar Palghar
5.9 km away
Manor Road Palghar
6.0 km away
Palghar Station
6.2 km away
Palghar Market
6.3 km away

Laptop Virus Infection Repair Across Mumbai — All Locations

Chandansar Road Colaba Hatkesh Society Chembur West Tarapur Saphale Market Alkapuri Uttan Nilemore Dockyard Road Bandra Reclamation Navghar Vasai Vangaon Market Maxus Mall Betegaon Parel Arnala Bandra East Sativali Zai Tulinj Dahanu Road Agashi Beach Mahalaxmi Navy Nagar Tarapur MIDC Lokhandwala Kanjurmarg Jesal Park Dadar
Explore More Services

More Repair & Tech Services Near Kelve Naka

Same certified 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

Ready to Fix Your
MSI Modern AM242 AIO?

₹350 Inspection (refunded if you proceed with repair) · Expert repair for Laptop Virus Infection · 90-day warranty

Serving Kelve Naka and all of Mumbai MMR · Open 9 AM – 9 PM daily

WhatsApp Now — Free Pickup +91 74997 61196

MSI Modern AM242 AIO Laptop Virus Infection Repair in Kelve Naka — Service Area & Coverage

Xigox provides msi modern am242 aio laptop virus infection repair across Kelve Naka (PIN 401401), in the Palghar district of Kelve Road. Our doorstep pickup and on-site service cover the entire Kelve Naka area and the neighbourhoods around it.

Localities we cover in Kelve Naka: Kelve Naka, Kelve Road, Palghar. Wherever you are in Kelve Naka, a certified Xigox technician can reach you — usually within 30–60 minutes.

Our technicians regularly serve homes, societies and offices around Kelve Naka Junction, Kelve Road Station and Mahim Devi Temple (nearby), and along Kelve Naka Road, NH-48 (Mumbai-Ahmedabad Highway) and Kelve Station Road. If you're near any of these landmarks, same-day pickup for msi modern am242 aio laptop virus infection repair is almost always available.

MSI Modern AM242 AIO Laptop Virus Infection Repair near Kelve Naka

We also serve these nearby areas — tap your locality for local msi modern am242 aio laptop virus infection repair:

Same-Day Repair Available

Fix Laptop Virus Infection on MSI Modern AM242 AIO — Book Now

₹350 inspection fee refunded if you proceed with repair · 90-day warranty

Booking Confirmed!

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

Inspection Fee: ₹350

  • Refunded if you proceed — credited toward total repair cost
  • Applies if laptop is not repairable or you decline repair
Message Us on WhatsApp Call +91 74997 61196

+91

Inspection Fee: ₹350

  • If you proceed with the repair, ₹350 is refunded — applied as a credit toward your total repair cost.
  • If your laptop is not repairable or you decide not to continue, the ₹350 inspection fee will still apply.

By submitting, you agree to our Privacy Policy.

Your info is 100% private — never shared

ISO
Call Now Same-Day · 90-Day Warranty WhatsApp