what is the difference in a 2G sim card and a 4G sim card? I have an iRULU v3. 6.5 smart phone with 2 sim card slots.
One slot says 4G the other 2G. I currently have only a 2G sim card, Family-Mobile through t-mobile they want $25.00 for a new sim card, is it worth getting the card. half the time the phone says emergency only with the 2G sim, it worked in my old Samsung even if not great service.
I was led to believe that the sim card had nothing to do with cell service but my cell service still suks with this current sim.
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I got my htc mini a few days ago. worked fine, and then it started to have no signal but data worked. so i got i new sim card from my carrier and all worked for a day.then the same thing happend. and the first sim card was micro sim card and the second was a nano simcard with adapter to micro sim.
I have trayd to put my phone back to factory settings, searched manually for network, trayd to remove and install the sim countless times with no luck. the sim card is trayd in another phone and it dosen't work there neither. and the phone is not rooted or anything like that
So i was wondring if it can be the phone that destroys the sim cards or maby i am unlucky with sim card?
Can anyone explain to me why my cell phones only detect and show that a sim is inserted for certain sim cards? For example, my S3 is able to detect a Koodo micro sim, but when I put in a Fido micro sim, it will not detect it and say no sim card inserted. Same goes for my spare dual sim phone. Any reasons why?
Sunohara said:
Can anyone explain to me why my cell phones only detect and show that a sim is inserted for certain sim cards? For example, my S3 is able to detect a Koodo micro sim, but when I put in a Fido micro sim, it will not detect it and say no sim card inserted. Same goes for my spare dual sim phone. Any reasons why?
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This could happen because your phone might be locked to a particular carrier. Search your device forum for help on unlocking.
Hey guys,
I have a new HTC E8, rooted like any respectable XDA member. I'm from India and travelling to Singapore, and there's some weirdness with my Airtel nano SIM and the SIM 2 slot. I have a local SIM with 3G in Slot 1.
For the first two days, Slot 2 would occasionally disappear, with the phone claiming there was no SIM in it. Opening and closing the tray would restore the connection. On day three, this stopped working. No amount of reinserting would get the phone to recognise the SIM.
So I swapped the SIMs and both work. Swapped them back and the Airtel doesn't work in Slot 2. The local M1 SIM has no problem in either slot, but I obviously get only 2G in Slot 2, and the whole point of a local SIM and a dual SIM phone is to get cheap data when on roaming.
Help me figure this out? Either the Airtel SIM doesn't like Slot 2 anymore (it used to work), and refuses to work on it, or the phone doesn't like the SIM, or there's simply a loose contact (but that doesn't explain why the other SIM works).
Hello,
Sometime two times per day I got this message: Sim card hot plug alert. In this time SIM 1 is disabled. I see that phone do not see the card. SIM car do not work. After restart everythng work well. Phone is nearly new and I have this problem all the time. It is bad because sometime I dont see this and I am not available on SIM 1. Sim card is new 4G and I had a same problem with old SIM card. Even if phone is on the table this heppend. I put tape on sim card to make better contact but is the same. No efect. Anyone know what is problem?
Hello, I have a honor 8 (FRD-L09 dual sim) and I have a problem with dual sim managements. I got 2 sim cards and I inserted in the slots, first days it was working perfectly (one of them on higher bands and the other one on 2g) but after somedays I noticed that there’s no signal (emergency only) for the 2g slot. I thought that it might be hardware problem but it was not; because when I switch the 2g slot to 3g/4g it works perfectly and also I can get 2g signal with that slot but the main problem is that I can’t get two sim cards work together. 2g slot is always without any signals when I insert two sim cards. I did a factory reset but the problem still exists. Any solutions ??
Thanks