Call and Text From Your Xiaomi Phone With Your Computer (MIUI/HyperOS Setup)

Call and Text From Your Xiaomi Phone With Your Computer

Yes, your Xiaomi can hand its calls and texts to any computer browser — your own number, phone in your pocket. The ComputerCaller setup itself is 3 minutes: install the companion app, sign in with Google, grant permissions, pair at computercaller.com. But let's be honest with each other up front: MIUI and HyperOS are the most aggressive background-app killers on Android. Xiaomi's software will kill the companion app unless you flip three specific settings. This guide gives you the setup and those three settings — skip them and sync will die within hours, not days.

Before you start

• Works on any Xiaomi with Google Play and Android 8+ — Mi and Xiaomi numbered series, running MIUI 12/13/14 or HyperOS.
• The SIM must be in this phone — calls and texts go out on your real number.
• Have a Redmi or POCO? Same software family, but the menus differ slightly — we have dedicated guides for Redmi and POCO.

Step 1: Install the companion app

1. Install DNK Dialer Companion from Google Play.
2. Open it and sign in with Google — the same account you'll use in the browser.

Step 2: Grant permissions in the order the app asks

Notifications first, battery last:

1. Notifications — connection status.
2. Phone and SMS — the core: calls and texts on your number. MIUI shows its own extra confirmation dialog for SMS — approve that too.
3. Contacts — names in your browser.
4. Battery (ignore optimizations) — asked last. Accept it, but know this only covers stock Android's battery manager. Xiaomi's own killer is separate — that's step 4.

Step 3: Pair at computercaller.com

1. On the computer, open computercaller.com — any browser, any OS.
2. Sign in with the same Google account and follow the pairing prompt.
3. When the app shows connected, you're live.

Step 4: The three Xiaomi settings that decide everything

This is the part that separates "works for an hour" from "works for months." All three, not two:

1. Autostart — the big one:

• Settings → Apps → Manage apps → DNK Dialer Companion → enable Autostart
• Without this, MIUI/HyperOS won't let the app come back after the system kills it. This single toggle is the most common fix for dead sync on Xiaomi.

2. Battery saver — No restrictions:

• Same app page → Battery saver → choose No restrictions

3. Lock the app in recents:

• Open the companion app, tap the recents button, find the app card, pull it down (or long-press → padlock icon) so a lock appears
• A locked card survives "clear all" and gets gentler treatment from the killer.

Sync keeps dying? The Xiaomi app-killer checklist

If sync stops anyway — and on Xiaomi it can — go through this list in order:

• Autostart got reset: MIUI/HyperOS updates sometimes reset Autostart. Check it first, every time.
• Battery Saver / Ultra Battery Saver on: both suspend background apps wholesale. If you use them daily, expect to reopen the companion app after each session.
• Security app "Boost speed" / cleaner: Xiaomi's Security app kills background apps when you run a boost. Open Security → Boost speed → settings → add DNK Dialer Companion to the exceptions list.
• MIUI Optimization: on a few MIUI versions, Settings → Additional settings → Developer options → "MIUI optimization" interferes with background services. Only relevant if you have developer options on — most people can ignore this.
• Quick fix right now: open the companion app on the phone; it reconnects on launch.

We'll be straight with you: exact menu names vary between MIUI 13, MIUI 14 and HyperOS, and between regions. If a path doesn't match, search "autostart" in the Settings search — it exists on every version, sometimes under App management.

Xiaomi FAQ

Is this fighting worth it? Once the three settings are set, yes — it runs quietly for months. The pain is a one-time cost.

Battery drain? Small. The app idles; the irony is that MIUI kills it because it's quiet.

Cost? ComputerCaller is $5 USD/month with a 7-day free trial — test it against MIUI's killer for a week before paying anything. The app is a free download.

Related guides:

• Call from your Redmi phone with your computer
• How to text from your computer