Oppo A3S (Model: CPH1803) launched in July 2018. The phone came out of the box with Android 8.1 Oreo powered by Snapdragon 450 chipset. Here we have shared the guide on how to repair and fix IMEI number on Oppo A3S.
The IMEI number is a unique identification or a serial number for all mobiles that comes out-of-the-box. It’s 15-17 digits serial number that identifies GSM phones due to SIM swapping. Therefore, an IMEI can track a phone’s hardware around the world. Keep in mind that all the IMEI numbers are very unique for each and every mobile device. But if in case, your device has null or invalid IMEI, you should fix it.
If your device doesn’t have the IMEI (International Mobile Equipment Identity) number, the carrier network won’t work on your device as well. The same thing happens with each dual SIM or higher SIM slot devices also. Each and every SIM slot are registered with a unique IMEI number and can be checked by typing *#06# on the dial pad of your phone and it will automatically show up the number.
Oppo A3S: Device Overview
Talking about the specifications, Oppo A3s features a 6.2-inch IPS LCD display with a screen resolution of 720 x 1520 pixels. It is powered by Qualcomm Snapdragon 450 Processor coupled with 2GB of RAM. The phone packs 16GB internal memory with an expandable storage support of 256GB via microSD card. The camera on the Oppo A3s comes with a Dual 13MP + 2MP rear camera with dual-LED dual-tone flash and 8MP front camera for selfies. It is backed by a Non-Removable 4230 mAh Lithium-ion battery.
Steps to Repair and Fix IMEI number on Oppo A3S CPH1803
Some times due to software issues or after flashing any custom firmware, your device may get corrupted or bricked. Similarly, the device IMEI number can also become invalid or removed which is quite unfortunate. Here we will share the QCN Rebuilder tool guide to restore IMEI number on the Oppo A3S device. QCN Rebuilder is a free tool to restore IMEI on any Oppo or Redmi devices.
Now, let’s check out the download links and requirements below.
- Download Flash tool: QPST or QFIL Tool
- Oppo A3S QCN File (zip) – Link
- Download QCN Rebuilder
- Download Oppo USB Drivers
- This guide and QCN file are for the Oppo A3S model only.
- Your device should be charged up to 50% at least.
- A PC/Laptop and a USB cable are required.
- Keep a full backup of the device data before doing anything.
- Enable USB Debugging. Check the video guide.
- Download all the files and tools from above.
IMEI Rebuilding and Restore Guide
- After downloading, install and run the QCN Rebuilder tool on your PC.
- Click on Open file and select the Oppo A3S QCN file.
- Now, replace the IMEI with the original IMEI number.
- Click on Rebuild.
- Next, connect your phone to a PC using a USB cable.
- Open dial pad on your device and type this code *#*#717717#*#* or you can try this method to enable diagnostic mode.
- If the above code doesn’t work, use CMD on your PC by following the commands below.
adb shell su setprop sys.usb.config rndis,diag,adb
- Then run the QPST tool on your computer.
- Click on the Restore tab > select the rebuilt QCN file > click on Restore.
- You’re done.
That’s it, guys. We hope you’ve found this guide useful for your Oppo A3S. If you’re facing any issues, feel free to ask in the comments below.