Skip to main content
HP · DeskJet 2723 · Vangaon Beach

HP DeskJet 2723
Cartridge Not Detected
in Vangaon Beach

Expert diagnosis and repair for Cartridge Not Detected on your HP DeskJet 2723 in Vangaon Beach. 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 HP DeskJet 2723 Show These Signs?

Common indicators of Cartridge Not Detected on HP DeskJet 2723. Recognise 2 or more? Your laptop or computer needs professional attention.

Laptop clearly shows signs of Cartridge Not Detected

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 Cartridge Not Detected

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

Book Inspection (₹350)

HP DeskJet 2723 Cartridge Not Detected in Vangaon Beach in Vangaon Beach — Comprehensive Guide

Tired of middlemen? Work with the actual repair team — Xigox. Laser printing issues — streaks, ghosting, or toner not fusing require specific component diagnosis: is it the drum unit, the transfer belt, or the fuser assembly?. Xigox Vangaon Beach engineers diagnose the exact component before ordering any part — keeping Cartridge Not Detected cost to the minimum necessary. All laser printer work in Vangaon Beach includes a 100-page test print at delivery.

Urgent Cartridge Not Detected in Vangaon Beach

Need your HP DeskJet 2723 fixed urgently? Xigox offers rush Cartridge Not Detected in Vangaon Beach for urgent situations. From an important client meeting and your HP DeskJet 2723 just crashed, our emergency service ensures your HP DeskJet 2723 is repaired within the same business day. Emergency Cartridge Not Detected can be arranged including weekends in Vangaon Beach. Just say 'priority' when calling and our team will fast-track your Cartridge Not Detected immediately.

Any HP DeskJet 2723, Any Brand in Vangaon Beach

Your HP DeskJet 2723 model doesn't limit what we can fix. Our Vangaon Beach technicians are brand-agnostic experts: HP, Dell, Lenovo, Asus, Acer, MSI, Toshiba, Samsung and Apple MacBook. Each brand has quirks in their assembly that our team knows well. Model-specific experience cuts diagnostic time and improves first-time fix rates.

Transparent Pricing Policy for Cartridge Not Detected

The biggest frustration about repair shops in Vangaon Beach is surprise bills after the job is done. We've built our entire model around transparency. Before any work begins, our Vangaon Beach technician provides a clear cost estimate that covers everything. You see the exact cost — approve it or decline, no pressure. Our ₹350 inspection fee is fully refunded when you proceed with Cartridge Not Detected.

OEM-Grade Solutions for Cartridge Not Detected

Quality matters for Cartridge Not Detected. Because of this, our Vangaon Beach service centre strictly uses genuine parts for your HP DeskJet 2723. Unlike unverified repairers in Vangaon Beach that install fake components, we source directly from certified suppliers. This guarantees your Cartridge Not Detected will last, supported by our standard 90-day warranty.

Expert Technicians for Cartridge Not Detected in Vangaon Beach

Not everyone in Vangaon Beach can handle complex Cartridge Not Detected. Xigox's engineers undergo rigorous training specifically for HP DeskJet 2723 hardware. Whether it's a minor fix or advanced component-level motherboard repair, we fix it properly right here for Vangaon Beach clients.

How the Cartridge Not Detected Process in Vangaon Beach

Getting your HP DeskJet 2723 fixed in Vangaon Beach is designed to be hassle-free. First, message us at +91 74997 61196 sharing your issue. Then, our free pickup technician arrives at your Vangaon Beach address within the same day. Our engineers then perform a detailed diagnostic (₹350, refunded if you proceed). After your approval, Cartridge Not Detected is completed with OEM-grade parts — and your HP DeskJet 2723 is delivered back to you. Total turnaround: 24-48 hours.

Transparent Inspection in Vangaon Beach

Uncertain about the issue with your HP DeskJet 2723? Prior to starting any Cartridge Not Detected, Xigox performs a thorough diagnostic check. The ₹350 inspection fee, it is 100% refunded if you proceed with the repair. Our technicians in Vangaon Beach will show you the broken part in plain English so you can make an informed decision.

Why Choose Us for Cartridge Not Detected in Vangaon Beach

You have options in Vangaon Beach, but Xigox is the preferred choice for Cartridge Not Detected. Our core values include complete transparency. Every Cartridge Not Detected starts with a detailed hardware check costing just ₹350, refunded if you proceed. No hidden charges — just professional Cartridge Not Detected in Vangaon Beach.

Quick & Hassle-Free Cartridge Not Detected in Vangaon Beach

We know you can't stay disconnected in Vangaon Beach. Our Cartridge Not Detected is designed for maximum convenience. In 90% of cases, our Vangaon Beach technicians complete the Cartridge Not Detected on the same day. Our team offers free doorstep pickup from your Vangaon Beach address, execute the repair using precision tools, and return it to you.

Post-Repair Support for Cartridge Not Detected

Every Cartridge Not Detected performed by Xigox in Vangaon Beach comes with a documented 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 Vangaon Beach won't back their work — Xigox provides a printed warranty receipt every single time.

Your HP DeskJet 2723 is an investment — keep it running with Vangaon Beach's preferred Cartridge Not Detected experts. Xigox has helped over 10,000 Vangaon Beach businesses with zero hidden charges. Need a quick fix? Call us at +91 74997 61196 for same-day Cartridge Not Detected in Vangaon Beach.

Root Cause Analysis

What Causes Cartridge Not Detected on HP DeskJet 2723?

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 HP DeskJet 2723 Cartridge Not Detected

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

Repair TypeEstimated CostWarranty
Cartridge Not Detected Repair ₹199 90 Days
Cartridge Not Detected Repair ₹199 90 Days
Cartridge Not Detected Repair ₹199 90 Days
Cartridge Not Detected Repair ₹199 90 Days
Cartridge Not Detected Repair ₹199 90 Days
Cartridge Not Detected 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 HP HP Neverstop Laser 1200w Repair in Vangaon Beach?

With 1,00,000+ successful repairs and a 4.9-star rating, Xigox is Vangaon Beach's most trusted independent HP repair specialist. Covering the entire Palghar district with same-day service.

Brand-Trained Technicians

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

Genuine & OEM-Grade Parts

We use genuine HP 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 HP repairs in Vangaon Beach 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 HP HP Neverstop Laser 1200w 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 HP DeskJet 2723, 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 HP DeskJet 2723 Repair in Xigox Mumbai lab
Specialist Logic Board HP DeskJet 2723 Repair at Xigox repair facility
Xigox repair lab workbench — HP DeskJet 2723 Repair
Inside Xigox certified repair centre — HP DeskJet 2723 Repair
Our Process

How We Fix HP DeskJet 2723 Cartridge Not Detected

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 Cartridge Not Detected on your HP DeskJet 2723 in Vangaon Beach — no technical jargon required.

02

Free Doorstep Pickup

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

03

Expert Diagnosis

Your HP DeskJet 2723 is inspected by a specialist. We identify the root cause of the Cartridge Not Detected and provide a written quote — zero obligation.

04

Approved Repair

Once you approve the quote, we fix the Cartridge Not Detected using OEM-grade parts. No work starts without your explicit consent.

05

12-Point QA Check

Every repaired HP DeskJet 2723 passes a rigorous 12-point quality assurance checklist. We verify the Cartridge Not Detected is fully and permanently resolved.

06

Delivery + 90-Day Warranty

Your HP DeskJet 2723 is returned to your Vangaon Beach address with a written 90-day warranty certificate. Same fault recurs? Fixed free.

Book Free Pickup Now
Verified Customer Reviews

What Customers Say About HP DeskJet 2723 Cartridge Not Detected in Vangaon Beach

4.9/5 · 12 Reviews

Real customers · No paid reviews · All verified repairs

Google
HP ENVY 6055 — Urgent Printer Fix

"Our HP ENVY 6055 broke down right before a critical invoice run. Called Xigox Kandivali for emergency service and technician arrived within two hours. Fixed a jammed fuser and we met our deadline. Lifesaver service."

R
Ramya Krishnan
📍 Kabutar Khana · 8 Apr 2026
4
Google
HP Smart Tank 515 — Blank Pages Fix

"Our HP Smart Tank 515 was feeding paper but printing blank pages only. Xigox Ghatkopar diagnosed a disconnected print head cable and reseated it properly. Full printing restored immediately. Quick diagnosis saved our deadline."

T
Tushar Pawar
📍 Dadar West · 5 May 2025
31
Google
HP ENVY 6055 — Printer Noise Fix

"Our HP ENVY 6055 started making a grinding noise during printing. Xigox Chembur found a worn gear in the paper feed mechanism and replaced it. Printer operates quietly and smoothly again. Quick, affordable fix."

S
Shweta Sathe
📍 Mahalaxmi · 22 Oct 2025
42
Google
HP OfficeJet Pro 9015 — Annual Maintenance

"Called Xigox Bandra for annual service of our HP OfficeJet Pro 9015. They cleaned rollers, replaced pads, lubricated carriage, updated firmware, and calibrated colours. Printer runs faster and quieter now. Comprehensive and thorough work."

L
Leela Gokhale
📍 Antop Hill · 21 May 2026
12
Google
HP LaserJet Pro M1136 — Printer Not Responding Fix

"Our HP LaserJet Pro M1136 showed online but refused to print anything. Xigox Vasai found a corrupted spooler and faulty communication board. Fixed both and updated firmware. Prints instantly now at full rated speed."

A
Ashish Shetty
📍 Pydhonie · 9 Apr 2025
40
Google
HP Smart Tank 515 — General Printer Repair

"Our office HP Smart Tank 515 was producing faded prints with streaks. Xigox Vile Parle technician replaced the worn rollers and fuser element. Print quality is now factory-perfect. Sharp text and vibrant colours. Excellent on-site service."

K
Karan Oberoi
📍 Dongri · 17 Jan 2026
6
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 — HP DeskJet 2723 Cartridge Not Detected in Vangaon Beach

Everything you need to know before booking a diagnosis

8 questions answered Verified & updated
Common causes of Printer Fading Prints 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. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.
Every repair at Xigox — including Printer Fading Prints 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 Vangaon Beach and Mumbai MMR. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.
The cost to fix Printer Fading Prints in Vangaon Beach varies by printer 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. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.
Ask on WhatsApp Call Now
Xigox repairs Printer Fading Prints on HP, Canon, Epson, Brother, Samsung, Xerox, Ricoh and Kyocera, 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 Vangaon Beach are completed the same day. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.
It depends on the age and value of the printer. 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. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.
No. For any printer 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. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.
For part replacements our technician works at your address in Vangaon Beach. Printer Fading Prints 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. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.
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. Trusted by customers throughout Palghar — rated 4.9★ across 44,883++ reviews.

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

HP ENVY 6055 Repair in Vangaon Beach — Xigox

If you are looking for HP ENVY 6055 repair in Vangaon Beach that is not a brand service centre, this is it. Xigox has run an independent HP bench since 2011, and our technicians work on HP 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.

We stock genuine HP parts and OEM-certified components for every common HP ENVY 6055 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 401103 postal area within Palghar district, ensuring same-day response for every repair request. ₹350 inspection fee (refunded if you proceed with repair). Located near Vangaon Beach, our service coverage extends across Vangaon Beach and all surrounding localities. In addition to Vangaon Beach, we also provide doorstep repairs and free pickup for lab work for customers in Vangaon Station, Vangaon, Vangaon Market and other nearby areas.

How your HP ENVY 6055 gets serviced depends on the fault. Part swaps happen on-site anywhere in Vangaon Beach; 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 HP ENVY 6055 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
Vangaon Beach & 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

Cartridge Not Detected Repair for Other HP Models

We diagnose and fix Cartridge Not Detected on all HP models in Vangaon Beach

HP HP ENVY 6055 HP HP LaserJet 1020 HP HP LaserJet Pro M1136 HP HP LaserJet Pro M404dn HP HP Neverstop Laser 1200w HP HP OfficeJet Pro 9015 HP HP Smart Tank 515

Other HP DeskJet 2723 Problems We Fix

Xigox resolves all common HP DeskJet 2723 hardware and software issues in Vangaon Beach

Ink Smudging Paper Jam Error Printer Blank Pages Printer Colour Mismatch Printer Connection Error Printer Driver Error Printer Duplex Jam Printer Fading Prints Printer Ghost Images Printer Head Clogged Printer Making Noise Printer Misaligned Output

Cartridge Not Detected on Other Brands in Vangaon Beach

We fix Cartridge Not Detected on all major printer brands — same quality, same warranty

Brother Canon Epson Kyocera Ricoh Samsung

Areas, Roads & Landmarks We Cover in Vangaon Beach

Free pickup & drop across all these neighbourhoods

📍 Localities & Neighbourhoods

Vangaon Beach Vangaon Dahanu

🛣️ Roads & Highways

Vangaon Beach Road NH-48 (Mumbai-Ahmedabad Highway) Dahanu Road

⭐ Landmarks & Famous Places

Vangaon Beach Chikhla Beach (nearby) Vangaon Station

HP DeskJet 2723 Cartridge Not Detected Repair Near Vangaon Beach

Free doorstep service available in all these nearby areas

Vangaon Station
0.7 km away
Vangaon
0.8 km away
Vangaon Market
0.8 km away
Dahanu Road
1.0 km away
Dahanu Market
1.9 km away
Dahanu Road Station
2.0 km away
Dahanu
2.0 km away
Dahanu Beach
2.9 km away

Cartridge Not Detected Repair Across Mumbai — All Locations

Nalasopara West Vitawa Kemps Corner Shanti Nagar Kalina Mantralaya Lokhandwala Back Road Mahakali Caves Road Dahisar Dahanu Market Mumbra Bypass Kurla West Fort Linking Road Vidyavihar West Sewri Lokhandwala Andheri Kurla Road Sion West Chandivali Papdy Masjid Bunder Yari Road Walkeshwar Churchgate Ambadi Road Carter Road Lower Parel Parel Dadar West
Explore More Services

More Repair & Tech Services Near Vangaon Beach

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
HP DeskJet 2723?

₹350 Inspection (refunded if you proceed with repair) · Expert repair for Cartridge Not Detected · 90-day warranty

Serving Vangaon Beach and all of Mumbai MMR · Open 9 AM – 9 PM daily

WhatsApp Now — Free Pickup +91 74997 61196

HP DeskJet 2723 Cartridge Not Detected Repair in Vangaon Beach — Service Area & Coverage

Xigox provides hp deskjet 2723 cartridge not detected repair across Vangaon Beach (PIN 401103), in the Palghar district of Vangaon. Our doorstep pickup and on-site service cover the entire Vangaon Beach area and the neighbourhoods around it.

Localities we cover in Vangaon Beach: Vangaon Beach, Vangaon, Dahanu. Wherever you are in Vangaon Beach, a certified Xigox technician can reach you — usually within 30–60 minutes.

Our technicians regularly serve homes, societies and offices around Vangaon Beach, Chikhla Beach (nearby) and Vangaon Station, and along Vangaon Beach Road, NH-48 (Mumbai-Ahmedabad Highway) and Dahanu Road. If you're near any of these landmarks, same-day pickup for hp deskjet 2723 cartridge not detected repair is almost always available.

HP DeskJet 2723 Cartridge Not Detected Repair near Vangaon Beach

We also serve these nearby areas — tap your locality for local hp deskjet 2723 cartridge not detected repair:

Same-Day Repair Available

Fix Cartridge Not Detected on HP DeskJet 2723 — 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