Skip to main content
ASUS · ROG Strix GT35 · Dahisar East

ASUS ROG Strix GT35
Computer Graphics Card Issue
in Dahisar East

Expert diagnosis and repair for Computer Graphics Card Issue on your ASUS ROG Strix GT35 in Dahisar East. 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 ASUS ROG Strix GT35 Show These Signs?

Common indicators of Computer Graphics Card Issue on ASUS ROG Strix GT35. Recognise 2 or more? Your laptop or computer needs professional attention.

Laptop clearly shows signs of Computer Graphics Card Issue

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 Computer Graphics Card Issue

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

Book Inspection (₹350)

ASUS ROG Strix GT35 Computer Graphics Card Issue in Dahisar East in Dahisar East — Comprehensive Guide

Skip the directories. Book direct for transparent pricing with Xigox. Gaming hardware require a different level of expertise — standard repair techniques are inadequate for high-TDP GPUs, dual-channel memory, and advanced cooling. In Dahisar East, Xigox's gaming specialists handle Computer Graphics Card Issue for ASUS ROG, MSI, Acer Predator, Lenovo Legion, Alienware, and custom rigs: the full spectrum of gaming hardware faults.

Safe & Secure Computer Graphics Card Issue

Your private information is fully protected during your Computer Graphics Card Issue. Residents across Dahisar East rely on Xigox because we follow strict data privacy protocols. During the Computer Graphics Card Issue, your photos, emails, and passwords are completely secure. In cases where OS reinstallation is required, we will always inform you first.

Component-Level Computer Graphics Card Issue in Dahisar East

Many service centres in Dahisar East can only do part swaps, which is unnecessarily expensive. Xigox's in-house micro-soldering lab means engineers diagnose the exact failing IC and replace only that component — a fraction of full board replacement. Dahisar East residents seek us out for chip-level Computer Graphics Card Issue.

Authentic Components for Computer Graphics Card Issue

Reliability matters for Computer Graphics Card Issue. That's why our Dahisar East team exclusively uses original-specification parts for your ASUS ROG Strix GT35. Compared to local shops in Dahisar East that use counterfeit components, we use trusted supply chains. This ensures your Computer Graphics Card Issue is durable, backed by our written 90-day warranty.

Enterprise Computer Graphics Card Issue in Dahisar East

Businesses across Dahisar East trust our Computer Graphics Card Issue 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 Computer Graphics Card Issue for your Dahisar East workspace with GST invoices and complete service reports.

Rigorous Testing after Computer Graphics Card Issue

Fixing the immediate problem is only half the job at Xigox. Prior to delivery in Dahisar East, it must pass a rigorous full-system quality check. Our team ensures that the Computer Graphics Card Issue was 100% successful, checking wi-fi connectivity. This meticulous testing is the reason for our 4.9★ rating across Dahisar East.

Trained Technicians for Computer Graphics Card Issue in Dahisar East

Not all shops in Dahisar East has the skills for complex Computer Graphics Card Issue. Our technicians undergo rigorous training dealing with ASUS ROG Strix GT35 hardware. From basic part swaps to complex micro-soldering, we handle it all right here for Dahisar East clients.

Upgrades & Optimization alongside Computer Graphics Card Issue

While your ASUS ROG Strix GT35 is opened for Computer Graphics Card Issue in Dahisar East, why not take the opportunity to boost its performance. Many of our customers request a faster SSD during the same visit. This proactive approach reduces future repair costs and can make an old laptop feel brand new. Inquire today about optimization packages when you book your Computer Graphics Card Issue.

The Best Choice for Computer Graphics Card Issue in Dahisar East

You have options in Dahisar East, but Xigox is the preferred choice for Computer Graphics Card Issue. Our core values include total honesty. Every Computer Graphics Card Issue starts with a detailed hardware check costing just ₹350, refunded if you proceed. No hidden charges — just professional Computer Graphics Card Issue in Dahisar East.

Our Computer Graphics Card Issue Process in Dahisar East

Arranging Computer Graphics Card Issue in Dahisar East is incredibly simple. Step 1, call or WhatsApp us at +91 74997 61196 to describe your issue. Next, our complimentary collection driver arrives at your Dahisar East doorstep within 1–2 hours. The team then carry out a thorough diagnostic (₹350, credited toward your repair). Once you agree, Computer Graphics Card Issue is executed with genuine parts — and your ASUS ROG Strix GT35 is returned to you. Most repairs done same day.

Free Logistics across Dahisar East

Traveling across town in Dahisar East is stressful. That's why Xigox has built a seamless pickup and delivery network for Computer Graphics Card Issue. Simply share your Dahisar East address, and our technician will pick up the ASUS ROG Strix GT35 from your home or office. After the Computer Graphics Card Issue is completed, it is delivered back fully tested and sealed. Save your time without leaving your desk.

Your ASUS ROG Strix GT35 is an investment — keep it running with Mumbai's most trusted Computer Graphics Card Issue experts. Xigox has helped over 10,000 Dahisar East residents with transparent billing. Need a quick fix? WhatsApp us at +91 74997 61196 for priority Computer Graphics Card Issue in Dahisar East.

Root Cause Analysis

What Causes Computer Graphics Card Issue on ASUS ROG Strix GT35?

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 ASUS ROG Strix GT35 Computer Graphics Card Issue

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

Repair TypeEstimated CostWarranty
Computer Graphics Card Issue Repair ₹199 90 Days
Computer Graphics Card Issue Repair ₹199 90 Days
Computer Graphics Card Issue Repair ₹199 90 Days
Computer Graphics Card Issue Repair ₹199 90 Days
Computer Graphics Card Issue Repair ₹199 90 Days
Computer Graphics Card Issue 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 ASUS All / Laptop Repair in Dahisar East?

With 1,00,000+ successful repairs and a 4.9-star rating, Xigox is Dahisar East's most trusted independent ASUS repair specialist. Serving all addresses in the 400068 postal zone.

Brand-Trained Technicians

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

Genuine & OEM-Grade Parts

We use genuine ASUS 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 ASUS repairs in Dahisar East 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 ASUS All / 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 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 ASUS ROG Strix GT35, 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 ASUS ROG Strix GT35 Repair in Xigox Mumbai lab
Specialist Logic Board ASUS ROG Strix GT35 Repair at Xigox repair facility
Xigox repair lab workbench — ASUS ROG Strix GT35 Repair
Inside Xigox certified repair centre — ASUS ROG Strix GT35 Repair
Our Process

How We Fix ASUS ROG Strix GT35 Computer Graphics Card Issue

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 Computer Graphics Card Issue on your ASUS ROG Strix GT35 in Dahisar East — no technical jargon required.

02

Free Doorstep Pickup

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

03

Expert Diagnosis

Your ASUS ROG Strix GT35 is inspected by a specialist. We identify the root cause of the Computer Graphics Card Issue and provide a written quote — zero obligation.

04

Approved Repair

Once you approve the quote, we fix the Computer Graphics Card Issue using OEM-grade parts. No work starts without your explicit consent.

05

12-Point QA Check

Every repaired ASUS ROG Strix GT35 passes a rigorous 12-point quality assurance checklist. We verify the Computer Graphics Card Issue is fully and permanently resolved.

06

Delivery + 90-Day Warranty

Your ASUS ROG Strix GT35 is returned to your Dahisar East address with a written 90-day warranty certificate. Same fault recurs? Fixed free.

Book Free Pickup Now
Verified Customer Reviews

What Customers Say About ASUS ROG Strix GT35 Computer Graphics Card Issue in Dahisar East

4.9/5 · 12 Reviews

Real customers · No paid reviews · All verified repairs

Google
MSI Modern AM242 AIO — Fan Noise Fix

"Fans on my MSI Modern AM242 AIO were running at maximum speed constantly creating unbearable noise. Xigox Santacruz replaced the internal fan assembly and cleaned all heatsinks. Whisper-quiet operation restored even during intensive tasks."

P
Preeti Joglekar
📍 Dahisar East · 8 May 2026
39
Google
ASUS Zen AiO 24 M5401 — Memory Expansion

"My ASUS Zen AiO 24 M5401 was crawling with only eight gigs of RAM. Xigox Santacruz carefully opened the compact chassis and installed thirty-two gigs in dual-channel. Zero slowdowns now no matter how many apps I run. Huge difference."

P
Priya Menon
📍 Dahisar East · 15 Dec 2024
20
Google
Lenovo IdeaCentre AIO 5i — Fan Noise Fix

"Fans on my Lenovo IdeaCentre AIO 5i were running at maximum speed constantly creating unbearable noise. Xigox Santacruz replaced the internal fan assembly and cleaned all heatsinks. Whisper-quiet operation restored even during intensive tasks."

S
Sakshi Bose
📍 Dahisar East · 1 Feb 2025
28
Google
HP All-in-One 24-cb — Overheating Fix

"My HP All-in-One 24-cb was overheating badly in the compact chassis causing random shutdowns. Xigox Santacruz cleaned all dust, replaced thermal compound, and improved internal airflow. Runs cool and stable now even under heavy load."

L
Leela Gokhale
📍 Dahisar East · 5 Aug 2025
30
Google
Dell OptiPlex 5400 AIO — Memory Expansion

"My Dell OptiPlex 5400 AIO was crawling with only eight gigs of RAM. Xigox Santacruz carefully opened the compact chassis and installed thirty-two gigs in dual-channel. Zero slowdowns now no matter how many apps I run. Huge difference."

S
Sandeep Patwardhan
📍 Dahisar East · 16 Oct 2024
12
Google
Dell Inspiron 27 7720 AIO — Display Fix

"Display on my Dell Inspiron 27 7720 AIO developed a large dark spot covering a quarter of the screen. Xigox Santacruz carefully replaced the integrated IPS panel and calibrated colours professionally. Flawless display with uniform brightness now."

M
Mrudula Wagh
📍 Dahisar East · 15 Oct 2025
13
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 — ASUS ROG Strix GT35 Computer Graphics Card Issue in Dahisar East

Everything you need to know before booking a diagnosis

8 questions answered Verified & updated
Common causes of Computer Windows Not Booting 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. Our service covers the full 400068 postal area in Dahisar East.
Every repair at Xigox — including Computer Windows Not Booting 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 Dahisar East and Mumbai MMR. Our service covers the full 400068 postal area in Dahisar East.
The cost to fix Computer Windows Not Booting in Dahisar East varies by 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. Our service covers the full 400068 postal area in Dahisar East.
Ask on WhatsApp Call Now
Xigox repairs Computer Windows Not Booting on Apple, HP, Dell, Lenovo, Asus, Acer, MSI, Intel and custom-built systems, 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 Dahisar East are completed the same day. Our service covers the full 400068 postal area in Dahisar East.
It depends on the age and value of the computer. 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. Our service covers the full 400068 postal area in Dahisar East.
No. For any computer 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. Our service covers the full 400068 postal area in Dahisar East.
For part replacements our technician works at your address in Dahisar East. Computer Windows Not Booting 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. Our service covers the full 400068 postal area in Dahisar East.
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. Our service covers the full 400068 postal area in Dahisar East.

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

ASUS ROG Strix GT35 Repair in Dahisar East — Xigox

If you are looking for ASUS ROG Strix GT35 repair in Dahisar East that is not a brand service centre, this is it. Xigox has run an independent ASUS bench since 2011, and our technicians work on ASUS boards and firmware every day rather than treating them as an occasional job. More than 1,00,000 repairs and a 4.9-star verified rating sit behind that.

Parts for ASUS ROG Strix GT35 models are held in stock rather than ordered after you book, so most repairs are not waiting on a supplier. Screens, batteries, keyboards, charging boards and flex cables are all OEM-grade. You approve a written estimate first, and the ₹350 inspection is credited back against the repair.

We actively serve the entire 400068 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 Dahisar East, our service coverage extends across Dahisar East and all surrounding localities. In addition to Dahisar East, we also provide doorstep repairs and free pickup for lab work for customers in Dahisar, Medtiya Nagar, Dahisar West and other nearby areas.

Doorstep part replacement (battery, keyboard, screen, SSD, RAM) is available across Dahisar East. 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.

Your ASUS ROG Strix GT35 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
Dahisar East & 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

Computer Graphics Card Issue Repair for Other ASUS Models

We diagnose and fix Computer Graphics Card Issue on all ASUS models in Dahisar East

ASUS ASUS ExpertCenter D7 ASUS ASUS ProArt Station PD5 ASUS ASUS TUF Gaming GT501

Other ASUS ROG Strix GT35 Problems We Fix

Xigox resolves all common ASUS ROG Strix GT35 hardware and software issues in Dahisar East

Computer Audio Issues Computer Beeping On Startup Computer Blue Screen of Death Computer Data Recovery Computer Fan Noisy Computer Hard Drive Failure Computer Keyboard/Mouse Not Working Computer Monitor Flickering Computer Motherboard Failure Computer Network/Ethernet Issue Computer No Display Computer Not Turning On

Computer Graphics Card Issue on Other Brands in Dahisar East

We fix Computer Graphics Card Issue on all major computer brands — same quality, same warranty

Acer Apple Custom Dell HP Intel Lenovo MSI Samsung

Areas, Roads & Landmarks We Cover in Dahisar East

Free pickup & drop across all these neighbourhoods

📍 Localities & Neighbourhoods

Dahisar West Dahisar East Dahisar Check Naka Anand Nagar Rawalpada Ashok Van Flora Park Happy Valley

🛣️ Roads & Highways

SV Road Link Road Western Express Highway

⭐ Landmarks & Famous Places

Mandvi Park Dahisar Bridge Dahisar River

ASUS ROG Strix GT35 Computer Graphics Card Issue Repair Near Dahisar East

Free doorstep service available in all these nearby areas

Dahisar
1.6 km away
Medtiya Nagar
1.8 km away
Dahisar West
2.1 km away
Geeta Nagar Mira
2.2 km away
Mira Village
2.3 km away
Mira Road East
2.3 km away
Pleasant Park
2.4 km away
Borivali East
2.5 km away

Computer Graphics Card Issue Repair Across Mumbai — All Locations

Kandivali East Amboli Penkar Pada Charni Road Bhandup East Agashi Bolinj Naka Virar Vitawa Vasant Nagari Pleasant Park Vasai Station Sion West Cumballa Hill Grant Road Mira Road East Jogeshwari CSMT Vasai Creek Palghar Dadar Chinchani Lokhandwala Betegaon Vangaon Station Charkop Breach Candy Saravali Kanjurmarg East Bandra Kurla Complex
Explore More Services

More Repair & Tech Services Near Dahisar East

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
ASUS ROG Strix GT35?

₹350 Inspection (refunded if you proceed with repair) · Expert repair for Computer Graphics Card Issue · 90-day warranty

Serving Dahisar East and all of Mumbai MMR · Open 9 AM – 9 PM daily

WhatsApp Now — Free Pickup +91 74997 61196

ASUS ROG Strix GT35 Computer Graphics Card Issue Repair in Dahisar East — Service Area & Coverage

Xigox provides asus rog strix gt35 computer graphics card issue repair across Dahisar East (PIN 400068), in the Mumbai Suburban district of Mumbai. Our doorstep pickup and on-site service cover the entire Dahisar East area and the neighbourhoods around it.

Localities we cover in Dahisar East: Dahisar West, Dahisar East, Dahisar Check Naka, Anand Nagar, Rawalpada, Ashok Van, Flora Park, Happy Valley. Wherever you are in Dahisar East, a certified Xigox technician can reach you — usually within 30–60 minutes.

Our technicians regularly serve homes, societies and offices around Mandvi Park, Dahisar Bridge and Dahisar River, and along SV Road, Link Road and Western Express Highway. If you're near any of these landmarks, same-day pickup for asus rog strix gt35 computer graphics card issue repair is almost always available.

ASUS ROG Strix GT35 Computer Graphics Card Issue Repair near Dahisar East

We also serve these nearby areas — tap your locality for local asus rog strix gt35 computer graphics card issue repair:

Same-Day Repair Available

Fix Computer Graphics Card Issue on ASUS ROG Strix GT35 — 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