How to Make Any Phone eSIM Compatible

Learn how to convert non-eSIM Android phones into eSIM-compatible devices using adapter solutions like 5ber and 9eSIM for WhatSnap SMS messaging.

Turn your regular Android phone into an eSIM-compatible device for use with WhatSnap SMS Gateway.

Why Use eSIM Adapters?

The Challenge: Most budget Android phones don't support eSIM technology, but eSIMs offer significant advantages for WhatSnap users.

eSIM Advantages:

  • Use international numbers from anywhere via WiFi

  • No physical SIM card swapping

  • Easier remote activation and management

  • Store multiple eSIM profiles on one device

  • Great for multi-country operations

The Solution: Physical SIM adapter cards that enable eSIM functionality on any Android device.

Note: While eSIM adapters work, most WhatSnap users prefer regular physical SIM cards for simplicity and reliability. Only use eSIM adapters if you specifically need eSIM functionality (e.g., international numbers over WiFi).

Option 1: 5ber.eSIM Card

What is 5ber?

The 5ber.eSIM Card is a GSMA-compliant physical SIM card that converts your regular SIM slot into an eSIM-compatible slot.

How It Works:

  • Looks and fits exactly like a normal SIM card

  • Integrates eSIM technology into the physical card

  • Each card has a unique EID (eSIM identifier)

  • Download eSIM profiles onto the card via app

Key Features:

  • ✅ Works with any Android device (even non-eSIM phones)

  • ✅ Use any carrier network worldwide

  • ✅ GSMA-compliant (standard eSIM technology)

  • ✅ Switch between eSIM profiles easily

  • ✅ No phone modifications needed

How to Use 5ber with WhatSnap

1

Purchase 5ber.eSIM Card

Special Discount Link: 5ber.eSIM with 10% Off

WhatSnap Users: Use the link above to save 10% on your order (affiliate link - supports our documentation efforts).

Order the 5ber.eSIM card from their website.

2

Install 5ber Card in Your Android Device

  1. Power off your Android phone

  2. Insert the 5ber.eSIM card into your SIM card slot (like a regular SIM)

  3. Power on your device

  4. The card will be recognized as a physical SIM

3

Download eSIM Profile

  1. Purchase an eSIM plan from any carrier (e.g., Tello, Airalo, carrier websites)

  2. You'll receive a QR code or activation code

  3. Use the 5ber app (or compatible eSIM manager) to scan/enter the code

  4. The eSIM profile downloads to the 5ber card

4

Configure for WhatSnap

  1. Enable RCS in Google Messages (required for eSIM over WiFi)

  2. Connect to WiFi and disable cellular data (if using international eSIM)

  3. Test SMS sending from native Messages app

  4. Install and configure WhatSnap Gateway app

5

Start Messaging

Your Android device now has eSIM capability and can be used with WhatSnap SMS Gateway.

5ber Compatibility

Works With:

  • Any Android phone with a SIM card slot

  • Any eSIM carrier worldwide

  • WhatSnap SMS Gateway

  • Multiple eSIM profiles (switch as needed)

Requirements:

  • Android 9.0 or higher (for WhatSnap compatibility)

  • SIM card slot (nano-SIM, micro-SIM, or standard SIM)

  • Internet connection for eSIM profile downloads

Option 2: 9eSIM Card

What is 9eSIM?

The 9eSIM is another physical SIM adapter that enables eSIM functionality on devices without built-in eSIM support.

How It Works:

  • Physical SIM card with integrated eSIM technology

  • Managed via the EasyEUICC_9esim app

  • Download and store eSIM profiles directly on the card

  • Switch between profiles in the app

Key Features:

  • ✅ 1.5 MB storage capacity - store up to 50 eSIM profiles

  • ✅ Compatible with most Android smartphones

  • ✅ Managed via dedicated app (EasyEUICC_9esim)

  • ✅ Works with international carriers

  • ✅ Cost-effective eSIM solution

How to Use 9eSIM with WhatSnap

1

Purchase 9eSIM Card

Search for "9eSIM" or "9eSIM card" online from authorized retailers.

Where to Buy:

  • Amazon

  • eBay

  • Official 9eSIM distributors

  • Mobile accessory retailers

2

Install 9eSIM Card

  1. Power off your Android device

  2. Insert the 9eSIM card into your SIM slot

  3. Power on your device

3

Download EasyEUICC_9esim App

  1. Download EasyEUICC_9esim app (available via APK or app stores)

  2. Install the app on your Android device

  3. Open the app and grant required permissions

4

Add eSIM Profile

  1. Purchase an eSIM plan from any carrier

  2. Receive QR code or activation code

  3. Open EasyEUICC_9esim app

  4. Tap "Add Profile" or "Scan QR Code"

  5. Scan or enter the eSIM activation code

  6. Wait for profile to download to the 9eSIM card

5

Enable the Profile

  1. In the EasyEUICC app, you'll see your downloaded eSIM profiles

  2. Tap on the profile you want to use

  3. Select "Enable" or "Activate"

  4. The profile will become active

6

Configure for WhatSnap

  1. Enable RCS in Google Messages (critical for eSIM over WiFi)

  2. Connect to WiFi (disable cellular if using international eSIM)

  3. Test SMS from native Messages app

  4. Install WhatSnap Gateway app and connect

9eSIM Advantages

Storage Capacity:

  • Store up to 50 eSIM profiles on one card

  • Perfect for agencies managing multiple clients

  • Great for frequent travelers needing multiple country numbers

Flexibility:

  • Switch between profiles easily in the app

  • No need to physically swap SIM cards

  • Manage multiple WhatSnap SMS accounts from one device (with profile switching)

Which eSIM Adapter Should I Choose?

5ber vs. 9eSIM Comparison

Feature
5ber.eSIM
9eSIM

Storage

Multiple profiles (exact capacity varies)

Up to 50 profiles

Management

5ber app or standard eSIM tools

EasyEUICC_9esim app (required)

Compatibility

Any Android phone

Most Android phones

GSMA Compliance

✅ Yes

Varies by version

Ease of Use

Very easy

Moderate (requires specific app)

Cost

Moderate

Generally cheaper

Availability

Official website

Various retailers

Recommendations

Choose 5ber if:

  • ✅ You want official GSMA-compliant eSIM technology

  • ✅ You prefer simpler setup and management

  • ✅ You need maximum carrier compatibility

  • ✅ You're setting up 1-5 eSIM profiles

Choose 9eSIM if:

  • ✅ You need to store many eSIM profiles (up to 50)

  • ✅ You're comfortable with technical app management

  • ✅ You want a more budget-friendly option

  • ✅ You're managing multiple clients/countries

Choose Physical SIM if:

  • ✅ You only need 1-2 numbers per device

  • ✅ You want maximum simplicity and reliability

  • ✅ You don't need international numbers over WiFi

  • ✅ You're new to WhatSnap SMS setup

Important Considerations for WhatSnap Users

RCS is Required

Critical: When using eSIM adapters (5ber or 9eSIM) to send SMS over WiFi, you must enable RCS in Google Messages. Without RCS, SMS will not send.

See: RCS Settings Guide for detailed setup instructions.

WiFi Calling Setup

For international eSIMs over WiFi:

  1. Carrier must support WiFi calling

  2. Enable WiFi calling in Phone app settings

  3. Configure emergency address if required

  4. Test with native Messages app before WhatSnap setup

See: eSIM Compatibility Guide for full WiFi calling setup.

Warm-Up is Critical

eSIM warm-up is even more critical than physical SIM warm-up. Start extremely slowly:

  • Week 1: 10-15 messages/day maximum

  • Week 2: 20-40 messages/day

  • Week 3+: 50-100 messages/day (monitor carefully)

See: Database Reactivations - SIM Warm-Up

Volume Expectations

Realistic Volumes with eSIM Adapters:

  • Lower than physical SIMs

  • Carriers are stricter with eSIM usage

  • Recommended maximum: 100-150 messages/day

  • Monitor for blocks frequently

Troubleshooting

Common Issues:

  • Messages not sending: Enable RCS, verify WiFi calling

  • eSIM won't activate: Check adapter compatibility, app permissions

  • Profile won't download: Verify internet connection, restart device

  • WhatSnap won't connect: Test with native Messages app first

Alternative: Native eSIM Phones

Consider eSIM-Compatible Phones

Instead of using adapters, you may want to purchase a phone with built-in eSIM support:

Budget eSIM Phones:

  • Google Pixel 3a (and newer) - $100-200 refurbished, excellent for WhatSnap

  • Samsung Galaxy A54 - Budget-friendly, reliable

  • Motorola Razr series - Dual eSIM support

Benefits:

  • Native eSIM support (more reliable)

  • No adapter needed

  • Simpler setup

  • Better carrier compatibility

See: SMS Device Specifications for phone recommendations.

Summary

eSIM Adapters Recap

5ber.eSIM:

  • ✅ GSMA-compliant, reliable

  • ✅ Easy to use

  • ✅ Works with any Android phone

  • 🔗 Get 10% Off

9eSIM:

  • ✅ Store up to 50 profiles

  • ✅ Budget-friendly

  • ✅ Great for multi-client agencies

Both Options:

  • Enable eSIM functionality on any Android device

  • Require RCS for SMS over WiFi

  • Work with WhatSnap SMS Gateway

  • Need careful warm-up process

Most Users: If you don't specifically need eSIM functionality (international numbers over WiFi), stick with regular physical SIM cards for simplicity and reliability.

Next Steps

  1. Check eSIM Compatibility - Full guide to using eSIMs with WhatSnap

  2. RCS Settings Guide - Required for eSIM over WiFi

  3. SMS Installation & Setup - Connect device to WhatSnap

  4. Getting US eSIM - International users getting US numbers

Questions? Contact WhatSnap support at support@whatsnap.ai for eSIM adapter recommendations and setup assistance.

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