Hi All need help:
I have bought S4 mini Duos in India. I have put 2 SIM SIM 1 Vodaphone and SIM 2 Airtel.
I have problem with Vodaphone SIM. Even though the Vodaphone SIM have full network in my phone Callers can not connect to the Vodaphone SIM. Number unavailable for callers. This issue occurs 6 out of 10 times.
- Any one else have this issue with Vodaphone SIM?
- How to resolve this? Issue is with Vodaphone SIM only Airtel is fine.
- 3g is avtive in Airtel SIM.
- I have changed the Vodaphone SIM to SIM 2 but the same issue is there.
- Nwtwork drops it will reconnect automatically no issue in that.
- Only call can not connect to Vodaphone SIM.
Any solutions? Should i return the mobile?
vodafone sim network problem
livetech2 said:
Hi All need help:
I have bought S4 mini Duos in India. I have put 2 SIM SIM 1 Vodaphone and SIM 2 Airtel.
I have problem with Vodaphone SIM. Even though the Vodaphone SIM have full network in my phone Callers can not connect to the Vodaphone SIM. Number unavailable for callers. This issue occurs 6 out of 10 times.
- Any one else have this issue with Vodaphone SIM?
- How to resolve this? Issue is with Vodaphone SIM only Airtel is fine.
- 3g is avtive in Airtel SIM.
- I have changed the Vodaphone SIM to SIM 2 but the same issue is there.
- Nwtwork drops it will reconnect automatically no issue in that.
- Only call can not connect to Vodaphone SIM.
Any solutions? Should i return the mobile?
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Dude! i too had the same problem.
sim1 vodafone had network drop and 3g network suddenly goes lost.
sim 2 airtel worked fine.
took the phone to samsung service center. they said its problem with the antenna reception.
they replaced the mother board to new one and phone works fine now.
everything was covered under warranty... great relief...
kichaz!!
Hi guys... Im from Panama and i have a question let tell a little background
Here in Panama we have 2 providers that have LTE and uses band 28 this is why i bought my zenfone from taiwan with band 28 reception... this is the problem i put my sim card from one of the provider and guess what didnt got LTE and they told me is becuase is my phone that is not allow in their network (they are selling phone which is LTE ready according to them) But i friend of my put his simcard of his samsung S6 from the second company (uses the same 28 band) and my phone got LTE rightaway... So is somthing the provider can do to stop phones coming from outside getting LTE? Right now my phone is getting HSPA+ that is H+ but nothing else
And in the screenshot my phone is detecting the network which is the first LTE that you see. The second LTE with Forbidden is from the other company from which my friend have his simcard..
Thanks for the help
Hello,
I had my M8 replaced under warrenty and received a brand new M8. I am in Australia and use the Telstra network, and they provide network unlocked phones for plan customers, thus this phone isn't network locked.
When I first got it, it kept saying "Invalid Sim Card" on the lock screen for 2 days, and it went away by itself. The tech at the store said at that time they had significant network problems and we're resolved at the same time my phone was playing up. In those 2 days I also replaced the Sim Card and it made no difference.
Flash forward 4 weeks and I went overseas to Germany and the phone worked fine for a few days then again said Invalid Sim Card. No matter how many times I rebooted it I couldn't get it onto the network. Once I returned to Australia it worked fine.
I am now in South Africa and my Australian Telstra Sim Card was working fine but I needed a local number for data, so I purchased a Vodacom sim with data only and it worked straight away. My girlfriend also brought a Vodacom sim for her M10 (same Telstra plan as me) and hers is fine
My sim and phone ran on their networks fine for 12 hours and I wake up this morning and it's now saying "Invalid Sim Card" again. I've tried rebooting it several times with no luck.
Does anyone have any ideas?
I'm not convinced it's the Sim Card tray as it works fine on Australia, only when overseas. I don't know anything about the radio or baseband stuff but it's that related?? What can I check??
I used the IMEI24 website to confirm the phone was unlocked from the carrier, and entering *#*#4636#*#* doesn't show any info as it's not on the network.
Phone is currently unlocked, S-on, TWRP 3.0.2.0, rooted, Marshmallow.
I'm pretty angry as I have an ultra marathon in 2 days, and this phone was to connect my Garmin watch to the internet so my friends and family could track me, and most importantly my girlfriend could find me at the finish.
Any help would be greatly appreciated.
Thanks!
matticas said:
I don't know anything about the radio or baseband stuff but it's that related??
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Click to collapse
I doubt it has anything to do with radio baseband. GSM bands are pretty standard worldwide, and just about any "quad band" (850, 900, 1800, 1900) GSM phone should get you at least voice and EDGE data services. And all M8 versions support those GSM bands. Therefore, any M8 should get you at least GSM service, regardless of the radio baseband installed.
I wonder if the issue is the SIM modules themselves, and the "overseas" issue is a red herring? My thought is, that maybe the overseas SIMs you purchased don't quite fit as well as your local (Australian) SIM. One thing you can try, is put some Scotch tape on the SIM (on the side without the gold contacts) and see if that "fattens" up the SIM enough to make better contact. Be careful not to get tape stuck in SIM slot/tray. I've seen this trick work for some folks with the Invalid SIM error.
Hi there,
I have a Z5 Premium dual sim (E6833) using both Vodafone and KPN
When I set the mobile network to LTE it pushes away the complete signal of that particular sim. Setting it into WCDMA I have a strong signal and putting it into GSM the signal is at max.
This seems not to be location related as a tried it on multiple locations and checked it with other people who are on the same network without having issues.
changed the setting to the 2nd sim and I experience the same for the other sim.
The sim with the lowest mobile network speed has the best signal.
How come and can it be changed? Earlier dual sim phone (cheaper ones) did not experience this isseu (honor 7 and Oneplus3)
Thanks for the help and advise
(sorry for the bad english...)
Hi
I just came back from a trip to Bangkok and noticed something unusual about the phone which I've never encountered before. I have a US unlocked HTC 10 and am on T-Mobile international roaming.
By default, my Preferred Network mode setting is "GSM/WCDMA/LTE auto". This setting works when I'm here in the US. While I was in Bangkok, the 4GLTE icon would be on but I would never be able to connect to the internet. However, when I switched it to WCDMA only, the phone was then able to connect. This seemed to happen whether I was connected to AIS or DTAC (the local wireless carriers).
By comparison, my friend's iphone x, also roaming on the same tmobile plan, didn't have any issues.
Any clues why this would be happening?