I have huawei mt7-cl00 phone. When I switch one SIM to 4g/3g slot, the signal reception of the other Sim becomes very weak and mostly zero. How can I overcome this problem?
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Hi there
I recently bought an Alcatel 991d and replaced it a couple of times due to signal loss and sim freezing (no internet, sms, and calls on either the sims). I passed to a Samsung Y duos which is more stable although it seems to still have some signal problem (when this signals is lost it does not come back although a good coverage area is reached, 3g icon disappear and no internet surfing is allowed, sims freezing (rare). With the Alcatel other people experiences serious problems expecially under poor coverage areas and hypothesized the problem could be related to the continuous jumping from 3g to 2g cells. Actually my Samsung y duos goes nice and smooth when I only use the 2g network. Do you think that countinous jumping form 3g to 2g can cause problem to android smartphone in general? Can you think to a solution for this?
thanks a lot!
my friend have similar problems on Gigabyte dual sim phone (I forget model name). didn't found solution yet
Hi
Just got my Xperia Z3 DUO today.
I put 2 tmobile USA sims in the phone.
We are in a building with a Tmobile antenna on the roof so the service for every phone is rock solid full bars.
However, in my experia z3 duo, no matter which sim i put in as sim 1 (and I have tried 7 differnet sims) , the service is 2-3 bars in contrast to sim 2 which is full bars always.
Any ideas????
thanks
Eric
In your situation I think sim2 is 2G band with full bars and sim1 must be set for something higher, like 4G or 3G.
I also have z3 duo and with sim1 Lte a can get on sim2 only 2G. Sim1 also has default package transmission on, sim2 not.
Check this options in your phone.
I agree with Bino saw, the biggest annoyance I find with the Z3 DUAL is that you have to go into your cell settings and switch which SIM you want to be LTE/3G or 2G as only one SIM can be LTE/3G and the other has to be 2G. Go into your mobile settings and switch your GSM sim to LTE and see if it changes. (Note the switching the "Data" SIM under my dual SIM settings doesn't automatically change these settings for me, not sure if it's suppose to)
Hi,
using the Xiaomi Mi 4 I have some issue with the GSM signal (no signal at all; the sim card is correctly read by the phone so I don't think it is a matter of internal sim slot contact).
I'm moving my attention to the antenna but... which is the GSM antenna?
My question is - does anyone else notice that when on 3G/H+, the Honor View 10 does not readily switch to 4G until the 3G signal is about to drop?
I'm on the Three network in the UK. My previous phone was commonly on 4G. The Honor View 10 however often sits on 3G/H+ despite preferred network mode being 4G/3G/2G. Switching to airplane mode on then off causes the phone to then connect back to the network on 4G.. I've checked signal strength in both modes and quite often 4G is showing a much better signal. However my unit at least does not switch to it unless 3G signal drops or I force it to connect to 4G via a quick airplane mode on/off.
Any suggestions/or own observations are appreciated. My unit is a BKL-L09 (C432) 8.0.0.130
This bug/quirkiness also seems present in the Honor 7X when testing. I've reported it to Honor, hope they look into it.
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