I am incredibly frustrated with Samsung, so this is a bit of a rant topic.
My S20+ Samsung phone has been playing up since around Christmas, randomly freezing and restarting at times. I did lots of self diagnosis, factory resetting, upgrading to Android 12 (issues started when on 11), removing all but the most basic of apps, running in safe mode etc, having it plugged in, having the case off… As the issue is seemingly random, it is very hard to correctly diagnose, but I have have confirmed issues with the phone plugged in, in safe mode, and with case off, so I don't think it could be software related (or at least shouldn't be). Phone has always been in a case with a screen protector, and there is no physical damage (no scratches or dents etc).
I finally sent the phone in for repair with Samsung, which went relatively smoothly. I posted it and received the phone back in around a week. All they had done was do a factory reset and said they couldn't replicate the issue. I was a bit frustrated, but I didn't have an issue for a day or two so thought it might have been fixed.
After more resetting I didn't want to sent in to Samsung without getting video evidence, so I took to recording my phone with another phone at times, and managed to get videos of it playing up and resetting. I factory reset my phone, put the videos on the phone, and uploaded videos online and made sure to provide a link in the repair notes.
After a few days, Samsung sent me an SMS stating that the phone 'qualified' for a free repair (as it should be, it is under warranty), and that it would take an estimated 2-3 business days. I said yes to proceed. After another week, not hearing anything and Samsung's online repair tracker not changing, I chatted with Samsung Support online and they said it was still under repair, but would escalate the issue and someone would be in contact within 1-2 business days (never got this call).
I waited another few days, and nothing. I then finally got a text saying the phone was repaired and being sent back. I received the next day. Looking at the repair note, they replaced the battery, charging port, and case maybe? That night, the phone reset a few times, I managed to get another video of it resetting right before bed.
The next morning I was about to set up a third repair request, but figured I should chat with Samsung Support as I am getting sick of sending the phone in and having to keep switching phones etc. The Samsung rep indicated that the repair had been escalated and could see that I was meant to get a call from Samsung, and they stated I should hold off sending the phone until I got the call. I said, I was still waiting on a call from the previous week that was meant to be 1-2 business days. They assured me someone would be in contact, and if I didn't get a call, to contact support again.
2 days later, no call, so I contact support. They have no record of there being any call back, and indicate the only solution is to send my phone in for repair. Frustrated as I literally was going to do this a few days prior and only did not due to their support saying not to, I got pretty annoyed about them not having anything on file even though I had the chat logs saved. As I was not getting anywhere with this support agent, I opened a separate chat with Samsung, and surprisingly this guy said, no actually there was a callback request on record and should get a call within 1-2 business days. I got really annoyed with the first guy as he obviously didn't have the same information for some reason. I tried to escalate to actually speak to someone. I finally got a call from his manager, who indicated that they would organise for a call from their VOC team within… "1-2 business days"… So the weekend happens, phone still playing up, including while using it as a GPS. Freezing where I can't turn it off.
This morning, I finally got a call from Samsung VOC, and they said, sorry not sure why you were told not to send the phone in, you need to send it in before we can do anything… I said surely you've had the phone twice now within a month, I don't want to have to send it away again and be without my phone for who knows how long. No good, only solution to send in and then can see what the next steps can be.
I am over Samsung. They wasted over a week when the phone could have been with them anyway. I don't think I'll buy another product from them. I can't imagine this would have been the case with Apple. I know this, in the scheme of things, is very petty and not important, but definitely not impressed by the level of support and lack of clarity in the whole process.
TLDR - Samsung Phone "repaired" twice, want it to be sent in for a third time after giving me conflicting stories and no calls several times despite saying they would.
EDIT: I didn't get anywhere with Samsung Support in the end, so I have shipped off the phone for who knows how long. Not sure what resolution I will get. I might update once anything else happens.
Sounds like you got a Samsung lemon.
Unlike their (recalled) wash machines, your phone isn't self igniting…