Sim manager won't open / No mobile data on 2nd Sim

JL22223

New member
Nov 26, 2023
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1. I have a Samsung S21 dual sim,that last updated on 21st November, One UI 5.1, Android 13. I've had this issue a couple of weeks now maybe and the latest update didn't fix it. When I go to Settings/Connections/SIM manager it won't load up and i get a crash message sometimes. If I restart the phone then it works fine, but this is inconvenient. I have 2 sims, a work one and a personal one, the work one goes off on an evening and weekend.

2. The 2nd Sim is my personal one and when I try to turn on mobile data I get the message 'Insert SIM card to access network services'. I can make and receive calls on Sim 2 and send and receive SMS, there is plenty of data allowance remaining in my contract.

I feel like these problems are linked and appeared around the same time.
 
Welcome to AC!

I moved this to our s21 Forum

THis is a international version I'm assuming?
 
If the sim manager crashed when opening up that something corrupted , I would try factory reset
 

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