How to Install JTWhatsApp in Linked Device Mode, Step by Step

JTWhatsApp V20 offers two ways to sign in: verifying your number with a one-time code (OTP), or Linked device mode. Linked device mode is the gentler option for many people, because your account stays registered to the official WhatsApp app on your main phone and JTWhatsApp joins it as a companion, much like WhatsApp Web or the desktop app.

Before you begin, remember what JTWhatsApp is: an unofficial modification made by an independent developer (Jimtechs). It is not affiliated with WhatsApp or Meta, using modified clients can break WhatsApp's terms, and accounts can be restricted. Nothing in this guide removes that risk, so keep a backup and decide for yourself whether it is worth it.

What Linked device mode means

In normal (OTP) sign-in, the app you install becomes the main home of your account. In Linked device mode, the official WhatsApp on your main phone stays the primary device, and JTWhatsApp is linked to it by scanning a QR code. Your phone number is not moved, and you can remove the link at any time from the main phone.

This setup is easiest when JTWhatsApp runs on a second phone or tablet, because the main phone's camera has to scan the code shown on the other screen. The app page lists "your main phone for Linked device mode" as a requirement for exactly this reason.

Before you start

Check these points first:

• Storage. The V20 download is about 113 MB; allow roughly 300 MB of free space for installing and syncing.
• Official WhatsApp is up to date on your main phone, installed from Google Play.
• A fresh backup exists. On the main phone, open Settings → Chats → Chat backup and run a backup. Linking should not touch your chats, but a recent backup costs nothing.
• Both devices are online, ideally on a stable Wi-Fi connection.
• Your browser or file manager is ready to be given the Install unknown apps permission, which you can switch off again afterwards.

Step 1: Install JTWhatsApp

1. On the device that will run JTWhatsApp, open the JTWhatsApp page on MODZILO and tap Download.
2. Open the downloaded file from your browser's downloads or a file manager.
3. If Android asks, allow Install unknown apps for that browser or file manager (usually under Settings → Apps → Special access).
4. Tap Install and wait for it to finish. If Google Play Protect shows a warning, read it carefully before deciding.
5. Go back and switch the Install unknown apps permission off again.

Step 2: Link it to your main phone

1. Open JTWhatsApp and accept the terms screen.
2. When asked how to sign in, choose the Linked device option rather than entering your phone number. The exact wording can differ between versions.
3. JTWhatsApp now shows a QR code. Keep this screen open.
4. On your main phone, open official WhatsApp, tap the three-dot menu (or Settings) and choose Linked devices → Link a device.
5. Unlock with your fingerprint, face or PIN if prompted, then point the camera at the QR code on the other screen.
6. Wait while your chats sync. Keep both devices open and connected until the chat list appears.

If the linking screen offers a different method, follow its prompts; options can change between releases.

After linking: what to expect

• Recent history syncs first. Older messages may take a while to appear, or may not all appear on the linked device.
• The main phone still matters. Official WhatsApp should stay installed and be opened regularly. If the main phone stays inactive for a long time, WhatsApp can log linked devices out.
• You can unlink any time. On the main phone, open Linked devices, tap the JTWhatsApp session and choose Log out.
• Updates are manual. JTWhatsApp does not update through Google Play. V20 itself was released partly to fix linking and companion-device login, so staying current helps. Install new versions over the old one.

If linking fails, check that both devices have the correct date and time, a working connection and the latest versions, then try again.

Key takeaways

• Linked device mode keeps your account registered to official WhatsApp on your main phone.
• It works most smoothly with JTWhatsApp on a second device, because you scan a QR code with the main phone.
• Back up on the main phone first and switch off Install unknown apps after installing.
• Open the main phone regularly, keep JTWhatsApp updated, and unlink it from Linked devices whenever you want.
• JTWhatsApp is unofficial; account restrictions remain possible whichever sign-in method you use.