Thanks for any insights. I have already purchased a cheaper Cricket phone until I fix or give up on this one…
Long story (below!) short, my A51 5G suddenly only works in complete Airplane mode. Turning on any wireless network/connection causes it to reboot repeatedly until it finally starts but does not recognize a SIM card is inserted.
A week ago my Galaxy A51 5G (which had been fine minutes earlier for calls/texts) suddenly restarted multiple times in a row. After maybe 5 minutes of this, it stayed on but told me there was no sim card installed.
I manually rebooted and the same thing happened - multiple consecutive reboots, until finally it stayed on but told me no sim card was installed.
I subsequently figured out that if I put the phone in Airplane mode (including Wi-Fi/BT off), it stays on... but obviously that largely defeats the purpose of the phone!
I removed/reinserted the SIM card, reset the network settings, uninstalled all non-essential apps, booted to safe mode (still would not recognize the sim card, still restarted when I turned on Wi-Fi), and went to Cricket and purchased a new sim card. None of it helped.
I finally did a factory data reset, but still the same issue.
Any insights before I consider the phone a loss? Anyone else have this issue?
I have had the phone for 17 months so it is out of warranty. But Samsung, I am a loyal customer of many devices over several decades... help me!