Skip to main content
Microsoft · Surface Hub 2S · Bandra Kurla Complex

Microsoft Surface Hub 2S
All-in-One Display Lines
in Bandra Kurla Complex

Expert diagnosis and repair for All-in-One Display Lines on your Microsoft Surface Hub 2S in Bandra Kurla Complex. 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

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 Microsoft Surface Hub 2S Show These Signs?

Common indicators of All-in-One Display Lines on Microsoft Surface Hub 2S. Recognise 2 or more? Your laptop or computer needs professional attention.

Screen cracked, shattered or deeply scratched

Display shows lines, flickering, or goes blank

Touch response is inaccurate or unresponsive

Dead pixels, discolouration or screen burn-in

Screen only works at certain tilt angles

Display panel separated from the chassis

Don't Ignore All-in-One Display Lines

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

Book Inspection (₹350)

Microsoft Surface Hub 2S All-in-One Display Lines in Bandra Kurla Complex in Bandra Kurla Complex — Comprehensive Guide

Tired of middlemen? Work with the actual repair team — Xigox. Cheap replacement screens fail within 3–6 months — colour drift, backlight bleed, and dead pixels. Xigox Bandra Kurla Complex uses display panels matched to your Microsoft Surface Hub 2S's exact specification: correct nit rating, colour gamut, and touch response curve — backed by a written 90-day warranty.

Multi-Point Inspection after All-in-One Display Lines

Completing the repair is just the first step at Xigox. Prior to delivery in Bandra Kurla Complex, it undergoes a strict multi-point inspection. We verify that your All-in-One Display Lines was executed flawlessly, testing thermal performance. This attention to detail is why our return rate is so low across Bandra Kurla Complex.

Convenient Collection across Bandra Kurla Complex

Navigating traffic in Bandra Kurla Complex is stressful. To solve this, Xigox offers a smooth doorstep logistics service for All-in-One Display Lines. Just drop your pin, and our secure courier will collect your Microsoft Surface Hub 2S directly from you. Once the All-in-One Display Lines is finished, we safely return it in protective packaging. Enjoy total convenience without leaving your desk.

Emergency All-in-One Display Lines in Bandra Kurla Complex

Need your Microsoft Surface Hub 2S fixed urgently? We provide rush All-in-One Display Lines in Bandra Kurla Complex for urgent situations. Whether you have an important client meeting and your Microsoft Surface Hub 2S just stopped working, our priority service guarantees your Microsoft Surface Hub 2S is repaired within 4–6 hours. Priority repairs are available 7 days a week in Bandra Kurla Complex. Simply mention 'URGENT' when booking and we'll prioritise your All-in-One Display Lines immediately.

Trusted by Bandra Kurla Complex for All-in-One Display Lines

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: honest pricing, same-day completion, and OEM-grade replacements. A recent Bandra Kurla Complex customer stated: "Best repair experience in Bandra Kurla Complex. Professional team, fair pricing." Join the 10,000+ community of satisfied Xigox customers in Bandra Kurla Complex.

Office All-in-One Display Lines in Bandra Kurla Complex

Businesses across Bandra Kurla Complex trust our All-in-One Display Lines to minimise downtime. We offer annual maintenance plans, same-day priority service, and a single point of contact. From a small team or an entire floor, Xigox manages All-in-One Display Lines for your Bandra Kurla Complex workspace with GST invoices and complete service reports.

Our All-in-One Display Lines Process in Bandra Kurla Complex

Getting your Microsoft Surface Hub 2S fixed in Bandra Kurla Complex 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 Bandra Kurla Complex doorstep within 1–2 hours. The team then carry out a thorough diagnostic (₹350, credited toward your repair). Once you agree, All-in-One Display Lines is executed with genuine parts — and your Microsoft Surface Hub 2S is returned to you. Most repairs done same day.

Warranty & After-Service for All-in-One Display Lines

All All-in-One Display Lines performed by Xigox in Bandra Kurla Complex comes with a written 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 Bandra Kurla Complex won't back their work — Xigox provides a printed warranty receipt every single time.

Same-Day All-in-One Display Lines in Bandra Kurla Complex

We know you can't stay disconnected in Bandra Kurla Complex. Our All-in-One Display Lines is designed for maximum convenience. In 90% of cases, our Bandra Kurla Complex technicians complete the All-in-One Display Lines on the same day. Our team offers free doorstep pickup from your Bandra Kurla Complex address, execute the repair using precision tools, and return it to you.

Genuine Parts for All-in-One Display Lines

Quality matters for All-in-One Display Lines. Because of this, our Bandra Kurla Complex service centre strictly uses genuine parts for your Microsoft Surface Hub 2S. Unlike unverified repairers in Bandra Kurla Complex that install fake components, we source directly from certified suppliers. This guarantees your All-in-One Display Lines will last, supported by our standard 90-day warranty.

Top-Rated All-in-One Display Lines in Bandra Kurla Complex

There are many repair shops in Bandra Kurla Complex, however, Xigox stands out for All-in-One Display Lines. We believe in complete transparency. Each All-in-One Display Lines begins with a thorough diagnostic inspection for ₹350, which is fully refunded if you proceed. No surprise fees — only expert All-in-One Display Lines in Bandra Kurla Complex.

Time is money in Bandra Kurla Complex. This is why we offer a hassle-free repair experience that just works. No travelling across Bandra Kurla Complex — just genuine All-in-One Display Lines at a fair price. Call +91 74997 61196 to book your free Bandra Kurla Complex pickup.

Root Cause Analysis

What Causes All-in-One Display Lines on Microsoft Surface Hub 2S?

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

Physical Impact

Accidental drops, pressure or blunt force fracturing the display panel or digitiser layer.

Electrical Surge

Power spikes or incompatible chargers damaging the backlight inverter or display driver IC.

Thermal Stress

Extreme temperature cycles causing LCD delamination or pixel burn-in over time.

Manufacturing Defect

Factory-level quality issues in the display module, more common in older or budget models.

Cost Estimate

Repair Cost for Microsoft Surface Hub 2S All-in-One Display Lines

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

Repair TypeEstimated CostWarranty
All-in-One Display Lines Repair ₹199 90 Days
All-in-One Display Lines Repair ₹199 90 Days
All-in-One Display Lines Repair ₹199 90 Days
All-in-One Display Lines Repair ₹199 90 Days
All-in-One Display Lines Repair ₹199 90 Days
All-in-One Display Lines 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 Microsoft Surface Studio 2 Plus Repair in Bandra Kurla Complex?

With 1,00,000+ successful repairs and a 4.9-star rating, Xigox is Bandra Kurla Complex's most trusted independent Microsoft repair specialist. Covering the entire Mumbai Suburban district with same-day service.

Brand-Trained Technicians

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

Genuine & OEM-Grade Parts

We use genuine Microsoft 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 Microsoft repairs in Bandra Kurla Complex 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 Microsoft Surface Studio 2 Plus 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 Mumbai Suburban
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 Microsoft Surface Hub 2S, 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
Technician diagnosing Microsoft Surface Hub 2S Repair in Xigox Mumbai lab
Specialist Logic Board Microsoft Surface Hub 2S Repair at Xigox repair facility
Xigox repair lab workbench — Microsoft Surface Hub 2S Repair
Inside Xigox certified repair centre — Microsoft Surface Hub 2S Repair
Our Process

How We Fix Microsoft Surface Hub 2S All-in-One Display Lines

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 All-in-One Display Lines on your Microsoft Surface Hub 2S in Bandra Kurla Complex — no technical jargon required.

02

Free Doorstep Pickup

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

03

Expert Diagnosis

Your Microsoft Surface Hub 2S is inspected by a specialist. We identify the root cause of the All-in-One Display Lines and provide a written quote — zero obligation.

04

Approved Repair

Once you approve the quote, we fix the All-in-One Display Lines using OEM-grade parts. No work starts without your explicit consent.

05

12-Point QA Check

Every repaired Microsoft Surface Hub 2S passes a rigorous 12-point quality assurance checklist. We verify the All-in-One Display Lines is fully and permanently resolved.

06

Delivery + 90-Day Warranty

Your Microsoft Surface Hub 2S is returned to your Bandra Kurla Complex address with a written 90-day warranty certificate. Same fault recurs? Fixed free.

Live — Recently Repaired All-in-One PCs

Lenovo
IdeaCentre AIO 3 24
✓ Fixed
4 days ago
Issue

Screen completely dark but faint image visible under flashlight. System running fine — audio and USB all working.

Solution

Diagnosed failed LED backlight driver board. Replaced driver IC and tested backlight uniformity across all zones. Full brightness restored.

Technician's Note

Backlight driver MOSFET shorted due to power surge. Recommended surge protector for prevention.

Thane West 2 Hours
Lenovo All-in-One Backlight
Apple
iMac 27-inch (2019)
✓ Fixed
2 days ago
Issue

iMac extremely slow — taking 5 minutes to boot. Fusion Drive HDD component failing with reallocated sectors.

Solution

Removed failing Fusion Drive. Installed 1TB NVMe SSD via PCIe adapter. Cloned macOS Ventura with all data intact. Applied fresh thermal past...

Technician's Note

SMART data showed 847 reallocated sectors on MQ01ABD100 HDD. New SSD benchmarks 2,800 MB/s read. Boot time now 12 seconds.

Bandra West 3.5 Hours
iMac SSD Upgrade Fusion Drive
Imac
24 M2
✓ Fixed
6 days ago
Issue

iMac shutting down randomly after 10-15 minutes of use. Sometimes not turning on at all.

Solution

Diagnosed intermittent power board failure. Replaced faulty voltage regulator components. iMac running stably.

Technician's Note

Power fluctuations in the area caused regulator damage. Recommended UPS for protection.

Borivali East 3 Hours
Power iMac Shutdown
Asus
Zen AiO 24 M5401
✓ Fixed
3 days ago
Issue

AIO running extremely hot. Fan constantly at full speed. Performance throttling during normal use.

Solution

Disassembled AIO. Cleaned dust-clogged fan and heatsink. Applied premium thermal paste. Temps dropped 20\u00b0C.

Technician's Note

AIO was 3 years old and never serviced. Recommended annual cleaning for slim AIO form factors.

Dadar West 1 Hour
Overheating ASUS AIO
Imac
24 M1
✓ Fixed
5 days ago
Issue

Two USB-C ports stopped working completely. External monitor and drives not detected.

Solution

Identified damaged USB controller IC on logic board. Micro-soldered replacement IC. All ports functional.

Technician's Note

USB-C controller required precision BGA rework. Saved customer from entire logic board replacement.

Malad West 5 Hours
Logic Board iMac USB-C
Lenovo
IdeaCentre AIO 3
✓ Fixed
4 days ago
Issue

AIO freezing during multi-tasking with only 8GB RAM. Zoom + Chrome + Excel causing system hangs.

Solution

Upgraded to 16GB DDR4 RAM (2x8GB dual-channel). System runs all apps simultaneously without issues.

Technician's Note

Lenovo AIO has easy-access RAM slots behind stand cover. Dual-channel provides significant bandwidth boost.

Goregaon West 30 Minutes
RAM Lenovo AIO
Verified Customer Reviews

What Customers Say About Microsoft Surface Hub 2S All-in-One Display Lines in Bandra Kurla Complex

4.9/5 · 11 Reviews

Real customers · No paid reviews · All verified repairs

MSI PRO AP242 AIO — General AIO Repair

"My MSI PRO AP242 AIO was running extremely slow with fans at full speed. Xigox Worli cleaned internals, replaced thermal paste, and upgraded to SSD. Boots in ten seconds now and runs whisper-quiet. Feels brand new again."

S
Sushma Jain
📍 Bandra Kurla Complex · 5 Oct 2024
44
MSI PRO AP242 AIO — Touchscreen Fix

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

H
Harsh Agarwal
📍 Bandra Kurla Complex · 17 Sep 2024
18
Acer Aspire C24-1750 — USB Port Fix

"Two USB ports on my Acer Aspire C24-1750 stopped working completely. Xigox Worli 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."

P
Prarthana Behere
📍 Bandra Kurla Complex · 19 Oct 2024
24
Acer Aspire C27-1700 — AIO Data Recovery

"My Acer Aspire C27-1700 crashed and refused to boot with four years of files inside. Xigox Worli recovered every single file from the damaged drive, installed a new SSD, and restored everything. Set up cloud backup too. Lifesaver."

S
Sanjay Deshmukh
📍 Bandra Kurla Complex · 11 Jan 2025
9
ASUS Zen AiO 24 M5401 — Storage Speed Upgrade

"Upgraded my ASUS Zen AiO 24 M5401 from HDD to NVMe SSD at Xigox Worli. 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."

R
Raj Malhotra
📍 Bandra Kurla Complex · 6 May 2026
30
ASUS Vivo AiO V241 — Logic Board Fix

"My ASUS Vivo AiO V241 stopped powering on after a voltage fluctuation. Xigox Worli did chip-level repair on the power regulation circuit instead of full board replacement. Saved me thousands. Working perfectly for two months now."

R
Renuka Shahane
📍 Bandra Kurla Complex · 27 Feb 2025
32
Page 1 / 2

← Swipe or tap dots to browse →

FAQs

FAQs — Microsoft Surface Hub 2S All-in-One Display Lines in Bandra Kurla Complex

Everything you need to know before booking a diagnosis

8 questions answered Verified & updated
For part replacements our technician works at your address in Bandra Kurla Complex. All-in-One Display Lines 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 BKC, Bandra East, Kherwadi 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. Our re-repair rate runs under 2%, but the cover is there in writing precisely so you do not have to rely on that number. Free pickup also available in BKC, Bandra East, Kherwadi and surrounding areas.
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 all-in-one PC repair lasts, so it is not somewhere we cut cost. Free pickup also available in BKC, Bandra East, Kherwadi and surrounding areas.
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 BKC, Bandra East, Kherwadi 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. Free pickup also available in BKC, Bandra East, Kherwadi and surrounding areas.
Yes — Xigox specialises in All-in-One Display Lines across Bandra Kurla Complex. 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 Bandra Kurla Complex — call or WhatsApp +91 74997 61196. Free pickup also available in BKC, Bandra East, Kherwadi and surrounding areas.
Most All-in-One Display Lines issues in Bandra Kurla Complex 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. Free pickup also available in BKC, Bandra East, Kherwadi and surrounding areas.
Common causes of All-in-One Display Lines 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. Free pickup also available in BKC, Bandra East, Kherwadi and surrounding areas.

Still have questions?

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

Microsoft Surface Hub 2S Repair in Bandra Kurla Complex — Xigox

Most Bandra Kurla Complex repair shops handle Microsoft the same way they handle every other make. We do not. Our Microsoft technicians are trained specifically on Microsoft Surface Hub 2S architecture — schematics, boardview files and firmware behaviour — which is why our first-time fix rate on Microsoft work is so much higher than a general shop's.

Every Microsoft component we fit is OEM-grade and batch-tested before it goes into your Microsoft Surface Hub 2S — 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 400051 postal area within Mumbai Suburban district, ensuring same-day response for every repair request. ₹350 inspection fee (refunded if you proceed with repair). Located near Bandra Kurla Complex, our service coverage extends across Bandra Kurla Complex and all surrounding localities. In addition to Bandra Kurla Complex, we also provide doorstep repairs and free pickup for lab work for customers in BKC, Bandra East, Kherwadi and other nearby areas.

How your Microsoft Surface Hub 2S gets serviced depends on the fault. Part swaps happen on-site anywhere in Bandra Kurla Complex; 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 Microsoft Surface Hub 2S 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
Bandra Kurla Complex & surrounding Mumbai areas
Doorstep repairs + free pickup for lab work
Contact Us
info@xigox.com
Our Guarantee
90-day warranty on all repairs
Free re-repair if same fault recurs

All-in-One Display Lines Repair for Other Microsoft Models

We diagnose and fix All-in-One Display Lines on all Microsoft models in Bandra Kurla Complex

All-in-One Display Lines on Other Brands in Bandra Kurla Complex

We fix All-in-One Display Lines on all major all_in_one brands — same quality, same warranty

Areas, Roads & Landmarks We Cover in Bandra Kurla Complex

Free pickup & drop across all these neighbourhoods

📍 Localities & Neighbourhoods

BKC Bandra East Kurla West

🛣️ Roads & Highways

BKC Road Western Express Highway Kalina Road

Landmarks & Famous Places

MMRDA Ground BKC NSE (National Stock Exchange) Bandra-Kurla Complex

Microsoft Surface Hub 2S All-in-One Display Lines Repair Near Bandra Kurla Complex

Free doorstep service available in all these nearby areas

All-in-One Display Lines Repair Across Mumbai — All Locations

Explore More Services

More Repair & Tech Services Near Bandra Kurla Complex

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
Microsoft Surface Hub 2S?

₹350 Inspection (refunded if you proceed with repair) · Expert repair for All-in-One Display Lines · 90-day warranty

Serving Bandra Kurla Complex and all of Mumbai MMR · Open 9 AM – 9 PM daily

Microsoft Surface Hub 2S All-in-One Display Lines Repair in Bandra Kurla Complex — Service Area & Coverage

Xigox provides microsoft surface hub 2s all-in-one display lines repair across Bandra Kurla Complex (PIN 400051), in the Mumbai Suburban district of Mumbai. Our doorstep pickup and on-site service cover the entire Bandra Kurla Complex area and the neighbourhoods around it.

Localities we cover in Bandra Kurla Complex: BKC, Bandra East, Kurla West. Wherever you are in Bandra Kurla Complex, a certified Xigox technician can reach you — usually within 30–60 minutes.

Our technicians regularly serve homes, societies and offices around MMRDA Ground BKC, NSE (National Stock Exchange) and Bandra-Kurla Complex, and along BKC Road, Western Express Highway and Kalina Road. If you're near any of these landmarks, same-day pickup for microsoft surface hub 2s all-in-one display lines repair is almost always available.

Microsoft Surface Hub 2S All-in-One Display Lines Repair near Bandra Kurla Complex

We also serve these nearby areas — tap your locality for local microsoft surface hub 2s all-in-one display lines repair:

Same-Day Repair Available

Fix All-in-One Display Lines on Microsoft Surface Hub 2S — 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

+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