1. Bubuka
This manual provides essential information for setting up, operating, and maintaining your realme C21Y smartphone. Please read this guide thoroughly to ensure optimal performance and longevity of your device. The realme C21Y is an international model featuring a 6.5-inch HD+ display, dual SIM capabilities, and a long-lasting battery.

Gambar 1: Tukangeun view of the realme C21Y smartphone.
2. Setélan
2.1 Naon dina Box
- realme C21Y Smartphone
- Adaptor
- Kabel USB
2.2 Pamasangan Kartu SIM
The realme C21Y supports dual SIM cards. Locate the SIM card tray on the side of the device. Use the provided SIM ejector tool to open the tray. Insert your Nano-SIM cards and a microSD card (if desired) into the designated slots, ensuring proper orientation. Gently push the tray back into the phone until it clicks into place.

Figure 2: SIM and microSD card tray for realme C21Y.
2.3 Powering on / Pareum
- Pikeun Ngahurungkeun: Pencét terus tombol Daya (anu aya di sisi katuhu) dugi ka logo realme némbongan.
- Pikeun mareuman: Pencét jeung tahan tombol Daya, teras pilih 'Pareuman' tina pilihan dina layar.
- Pikeun ngamimitian deui: Pencét jeung tahan tombol Daya, teras pilih 'Balikan deui' tina pilihan.
2.4 Setup Awal
Upon first power-on, the device will guide you through the initial setup process. This includes selecting your language, connecting to a Wi-Fi network, setting up your Google account, and configuring security features like fingerprint unlock.
3. Ngoperasikeun Alat Anjeun
3.1 Pintonan sareng Napigasi
The realme C21Y features a 6.5-inch HD+ LCD touchscreen with a resolution of 1600 x 720 pixels. Navigate the device using touch gestures: tap to select, swipe to scroll, pinch to zoom, and long-press for additional options.

Gambar 3: Hareupeun view of the realme C21Y display.
3.2 Fungsi kaméra
The device is equipped with a 13MP AI Triple Camera system on the rear and a front camera for selfies and video calls. The rear camera setup includes a 13MP primary camera, a 2MP B&W lens, and a 2MP macro lens. Key features include Super NightScape for enhanced low-light photography, Chroma Boost for vibrant colors, and 1080P video recording.

Figure 4: Details of the realme C21Y's 13MP AI Triple Camera.
3.3 Manajemén batré
The realme C21Y is powered by a 5000mAh battery, providing extended usage time. To optimize battery life, manage background app usage, adjust screen brightness, and enable power-saving modes when needed. Use the provided adapter and USB cable for charging.

Figure 5: The 5000mAh massive battery of the realme C21Y.
3.4 Konéktipitas
The device supports Bluetooth and Cellular wireless communication technologies. For audio, please note that there is no dedicated headphone jack, requiring the use of wireless headphones or a USB-C to 3.5mm adapter (not included).
4. Pangropéa
4.1 Ngabersihan Alat Anjeun
To clean your realme C21Y, power it off and gently wipe the screen and back panel with a soft, lint-free cloth. Avoid using harsh chemicals or abrasive materials that could damage the screen or finish. Do not expose the device to excessive moisture.
4.2 Apdet parangkat lunak
Regularly check for and install software updates to ensure your device has the latest security patches, features, and performance improvements. You can usually find update options in the device's 'Settings' menu under 'System' or 'About phone'.
5. Cara ngungkulan
If you encounter issues with your realme C21Y, try the following basic troubleshooting steps:
- Alat teu ngabales: Pencét jeung tahan tombol Daya salila kira 10-15 detik pikeun maksa balikan deui.
- Batré gancang boros: Check background app usage, reduce screen brightness, and ensure all apps are updated.
- Masalah konektipitas jaringan: Toggle Airplane Mode on and off, restart the device, or check your SIM card installation.
- Aplikasi nabrak: Clear the cache and data for the problematic app in 'Settings' > 'Apps', or reinstall the app.
Pikeun masalah anu langkung rumit, tingali dukungan resmi realme. websitus atanapi ngahubungan layanan palanggan.
6. Spésifikasi
| Fitur | Spésifikasi |
|---|---|
| Ngaran modél | C21Y |
| Sistem operasi | Android |
| Ram | 4 GB |
| Kapasitas Panyimpenan Mémori | 64 GB |
| Ukuran layar | 6.5 inci |
| Resolusi | 1600 x 720 |
| Kapasitas batré | 5000 Miliamp Jam-jaman |
| Laju CPU | 1.8 GHz |
| Item Beurat | 14 ons |
| Dimensi produk | 6 x 4 x 2 inci |
| Komunikasi Nirkabel | Bluetooth, Sélular |
| Audio Jack | Taya jack headphone |
7. Garansi jeung Rojongan
For detailed warranty information, please refer to the warranty card included with your product or visit the official realme websitus. Simpen bukti pameseran anjeun pikeun klaim garansi.
If you require technical assistance or have questions not covered in this manual, please contact realme customer support through their official channels.





