I have the following problems with Galaxy A50 phone, the phone crashed so I got Android version 9 installed by my local phone repair shop, when I started the setup on the phone this started fine till i connected to Wi-FI the software told me that it was checking for updates and then installed the updates I was running the lateset version.
other problem I am facing is that sometimes the ringtone does not sound out when someone rings me.
I use a pin to log in to my phone sometimes I find that I enter the right pin but the software on the phone tells me wrong pin entered.
The micphone on the phone sound like it is very old and the sound bad.
sometimes when I tap the press the button on the side of the phone to switch the screen saver off and the phone opens a app by itself.
When I use AUX cable to listen to internet radio on the phone in my car the sound volume is up to max on the phone but the volume though my car speakers sound very low, I have brought a new AUX cable but this has not help the problem.
Sometimes when I ring someone and the phone has the AUX cable plug in to it in the car, when the person answer they cannot hear me but other times they can hear me.
Find that the brightness have a mind of it own. find that the brightness is very bright but the slider is down were it sould be.
Find that the clock runs slow on the phone.
I have reset the phone but still get the problems.
when the phone works it great it a great phone.
Any help would be great.
I'm wondering if the local phone shop you have used to download the custom Rom onto the phone have used corrupted files or the wrong rom version @Matthew6 unless the local repair shop was an authorised Samsung Service Centre.
If they've caused these issues then Samsung can put this right at one of their Samsung Experience Store / Samsung Service Centres but they would levy a charge to do so.
Be aware in some countries these shops will be temporarily closed due to the COVID-19 pandemic.
I wish you all the best with this situation.
🌈 Stay Safe 🌈
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.