The Solution in this post may possibly help fix and repair Samsung Galaxy A12 Network Ways Problem Signal Ways or Low Network Issue. Before you may proceed to use this solution, ensure that the device firmware is okay, restored, and already flashed and or updated.
This solution may only work if the device suffered water damaged or heavily dropped by the user. First of all, I tell you that the networking problem that appears on this mobile is mostly seen from network antenna and to solve this problem you will first need to check network antenna line.
Samsung Galaxy A12 SM-A125F No service, emergency calls only, and no signal errors are among the widespread issues encountered in Samsung Galaxy A12 smartphone users regardless of brand and operating system the device is running on. These errors are likewise tagged among other network-related issues in mobile devices. When this problem occurs, you will not be able to send and receive texts, or make or receive calls on your device.
Samsung Galaxy A12 Specification:
The Samsung Galaxy A12 features 6.5 inches TFT display panel with 1080 x 2400 pixels resolution. This device is powered by a 1.8 GHz or 2.3GHz unknown octa-core processor. RAM goes up to 3/4/6 GB, while there’s a max of 128 GB of storage. You can get Android 10 with One UI 2.5 out of the box. Also, it comes with a 5000 mAh battery to power up the device. It was launched in Black, White, Blue, and Red color options.
The Samsung Galaxy A12 on the rear packs a 48-megapixel primary camera with an f/2.0 aperture; a second 5-megapixel camera with an f/2.2 aperture; a third 2-megapixel camera with an f/2.4 aperture and a fourth 2-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It sports an 8-megapixel camera on the front for selfies, with an f/2.2 aperture.
Samsung Galaxy A12 Network Problems
- No network on your phone.
- Low signals.
- The phone just search for the network, but not connected.
- Constantly falling signals.
- Call drop issue.
Issues Causing Samsung Galaxy A12 Network Problem
- Your SIM card may be defective.
- Your network operator may be having temporary difficulties.
- GSM antenna contact may be rusted bay or could have found some kind of powder.
- Contact Pines of the antenna are not adequately in touch with contacts GSM antenna.
- Any of the coils and capacitors antenna network or Power Amp IC could be defective.
- The secondary coil antenna may be defective.
Samsung Galaxy A12 Network Ways Problem Solution:
Download Samsung A12 SM-A125F Schematic Diagram
Restart your phone and Samsung Galaxy A12 and check. Remove and reinsert the SIM card and check. Switch between different network modes and control. Check with any other SIM card working, and that your SIM card or your network operator may be having problems. Samsung Galaxy A12 Network Problem Solution Jumper Ways
How To Repair Samsung Galaxy A12 Network Problem
Ensure that the device firmware is okay or successfully restored or flashed. Try to upgrade to a higher version and write good flash files.IF the firmware calibration already was done but seems nothing happens you may proceed to trace, check or replace the corresponding components shown on the solution above.
Make sure that the PCB board condition is still stable and not like bent or some damaged spots.
Check also if there is oxidation build-up, clean it first before you may proceed.
First, check the PA supply voltage, this voltage is coming from the antenna terminal and you can trace it between capacitors shown on the solution above.
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