Rep: 83
3
1
Hello, I have just finished replacing the battery on my Samsung a21s however now I have plugged my SIM back in my 4G is not working on the phone. Does anyone have any pointers as to how to fix this? Thanks in advance
Is dit een goede vraag?
Rep: 829
3
1
try a new sim tray i have about 5 people a day at least ask me about it and there under usd $10
now know that its not the sims tray and great question heres the reson why if u look at a sim tray it can break under 2lbs of force and i mean these are mirco cracks in it that can make it worp so say its not flush with the connection pins on the sim reader if its not flush it cant make contact to send the data but as we tried this so...
u mit have have damaged the sim reader or maybe even a micro controller.... tho i am working on what common problem related with the problem it could be u just need a new micro fuse or transistor or even the oscillator in rare cases. so my advice take it and get it looked at by a second pear of eyes
Was dit antwoord nuttig?
So I followed the replacement SIM tray advice but unfortunately the problem is persisting. Should I request a new SIM or have I done some sort of damage to my phone during the battery replacement? I'm also wondering why a new SIM tray solves that problem with some phones? Thanks in advance
Also Signal is dropping periodically
My 4G flashed on again a couple of minutes ago very briefly. Overall I'm very confused but I'll wait if it finally warms up and plays ball
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