Question 2G GSM not working - Samsung Galaxy A52 5G

Hello my friends
I have a problem with my phone. The problem is manifested by the lack of signal in the 2G network. Network 3G, LTE it works. Is this a system problem or internal damage?
When I am abroad and try to make a call, the phone goes to 2G mode and no signal is heard.
Please help, which module is responsible for the 2G GSM network? Do you have any schematics?

Related

3G and H+ switch problem

i m using canada bell network, it is only having H+, but my phone always switch 3G and H+, I m setting the network CDMA, but still the same, anyone suffer the same problem?

Got any airtel 3g hack ????

does anybody got a new hack for airtel network ???
what hack???
I'm guessing he wants to enable a normal 2G internet plan on his network for cheap, but use it in 3G by switching to 3G mode. As far as I know, with Airtel the only time I've seen this work is with my friend's AT&T Galaxy S2 unlocked from the US. It's a 4G phone and it doesn't have the usual 'GSM only', 'WCDMA only', 'GSM/WCDMA auto' modes under network settings. So when he recharged for a 2G pack, the phone connected to Airtel's 3G network and displayed a 'H+' symbol in his status bar. He gets 3G speeds quite a few times but sometimes it becomes as slow as 2G. I haven't seen this work on a normal phone bought in India.
I used to get 3g speeds on 2g internet pack from airtel.I always keep the network mode to wcdma.
But sometimes i also get very low 2g speeds.
All this on my old samsung galaxy s
sashank said:
I'm guessing he wants to enable a normal 2G internet plan on his network for cheap, but use it in 3G by switching to 3G mode. As far as I know, with Airtel the only time I've seen this work is with my friend's AT&T Galaxy S2 unlocked from the US. It's a 4G phone and it doesn't have the usual 'GSM only', 'WCDMA only', 'GSM/WCDMA auto' modes under network settings. So when he recharged for a 2G pack, the phone connected to Airtel's 3G network and displayed a 'H+' symbol in his status bar. He gets 3G speeds quite a few times but sometimes it becomes as slow as 2G. I haven't seen this work on a normal phone bought in India.
Click to expand...
Click to collapse
Yeah i was also having 3g speed with 2g plan ! with samsung s2
now i am not at all getting it
but my friends are getting it still now with airtel 2g plan !
pls somebody help me with a trick
thnaks

[Q]

Is there a device that is directly active dual sim 3G on both sim without the switch?
I think the perception of 3G dual sim masing2 can use the 3G connection switches. only a single 3G sim which support 3G and one 2G (edge ​​only) Is it true? Please guidance from colleagues

Honor 7 - Dual SIM with Dual Data connection 4g/3g

Hi Lads,
I bought an Honor 7 EU, because it was the only one can run two SIM connected to 4G and 3G at the same time also with active data connection. The only limit is that the first SIM must be connected to 4G to allow second SIM linking to 3G networks.
I saw the review on an Italian Blog (by A.Galeazzi on HDBlog) were the phone was on 4G on SIM1, and 3G on SIM2 and was explained also a sort of download boosters which use the two data networks simultaneously.
Unfortunately for me (ut of the box with release b100 and later with updated b121) the phone has always been connected to 2G networks on SIM2.
On a side note, I have a Wind Plan in Italy, that is correctly connecting to 4G Networks, while the second SIM is 3IRL which theoretically should connect to a 3G network Three UK/ITA. Unfortunately the issue is that the second SIM is roaming not on 3 sister Network but in 2G on a different network.
This for me is a big deal because with 3 IRL I have free calls and sms even when roaming (3 Like Home), as long as the phone is connected to a sister network (ergo 3ITA or 3UK). I use 3IRL for work, this means i'm an heavy users, so it is vital that the second SIM is on a sister network (3Italy/3UK) to avoid crazy roaming charges.
By the way, on the SIM 1, I would also like to have the data from Wind Italy in 4G, when staying in Italy, so I can get connected to 4G network in Italy and UK and Ireland.
How can I fix? Anyone out there who can help or point me in the right directon?
Dubliner972 said:
Hi Lads,
I bought an Honor 7 EU, because it was the only one can run two SIM connected to 4G and 3G at the same time also with active data connection. The only limit is that the first SIM must be connected to 4G to allow second SIM linking to 3G networks.
I saw the review on an Italian Blog (by A.Galeazzi on HDBlog) were the phone was on 4G on SIM1, and 3G on SIM2 and was explained also a sort of download boosters which use the two data networks simultaneously.
Unfortunately for me (ut of the box with release b100 and later with updated b121) the phone has always been connected to 2G networks on SIM2.
On a side note, I have a Wind Plan in Italy, that is correctly connecting to 4G Networks, while the second SIM is 3IRL which theoretically should connect to a 3G network Three UK/ITA. Unfortunately the issue is that the second SIM is roaming not on 3 sister Network but in 2G on a different network.
This for me is a big deal because with 3 IRL I have free calls and sms even when roaming (3 Like Home), as long as the phone is connected to a sister network (ergo 3ITA or 3UK). I use 3IRL for work, this means i'm an heavy users, so it is vital that the second SIM is on a sister network (3Italy/3UK) to avoid crazy roaming charges.
By the way, on the SIM 1, I would also like to have the data from Wind Italy in 4G, when staying in Italy, so I can get connected to 4G network in Italy and UK and Ireland.
How can I fix? Anyone out there who can help or point me in the right directon?
Click to expand...
Click to collapse
Have you found a solution ? I have two 3UK sim cards and can't use them both, have to switch between them. Please let me know, thanks!
Dubliner972 said:
Hi Lads,
I bought an Honor 7 EU, because it was the only one can run two SIM connected to 4G and 3G at the same time also with active data connection. The only limit is that the first SIM must be connected to 4G to allow second SIM linking to 3G networks.
Click to expand...
Click to collapse
Are you sure this is the case? As far as a I knew the Honor 7 EU can run one SIM on 3G/4G and the other on 2G only when both SIM's are in the phone at the same time. It's the Chinese version which allows 3G/4g on both SIM's at once (and has 64GB internal storage). I could be wrong but I'm sure someone else can clarify.
GrandMasterPlank said:
Are you sure this is the case? As far as a I knew the Honor 7 EU can run one SIM on 3G/4G and the other on 2G only when both SIM's are in the phone at the same time. It's the Chinese version which allows 3G/4g on both SIM's at once (and has 64GB internal storage). I could be wrong but I'm sure someone else can clarify.
Click to expand...
Click to collapse
never had two sim in my eu honor, but only one sim can do 4g, and the other i think it is 3g and not 2g
correct me i am wrong
Any updates on this? Can any phone actually run 3G/4G or at least 3G/3G at the same time? (or full autoswitch on call to 3G?)
I'm interested in the voice part only, for both cards to be 3G, without having to manually switch. 4G/3G would be a bonus
GrandMasterPlank said:
Are you sure this is the case? As far as a I knew the Honor 7 EU can run one SIM on 3G/4G and the other on 2G only when both SIM's are in the phone at the same time. It's the Chinese version which allows 3G/4g on both SIM's at once (and has 64GB internal storage). I could be wrong but I'm sure someone else can clarify.
Click to expand...
Click to collapse
how tell you Chinese version allows 3G/4g on both SIM's at once ( I have 64GB internal storage ) this not correct. the chinese version the same EU version not diffecult .
I have this problem. SIM1 connected 4G, SIM2 can only use 2G. Phone was bought in Beijing. Settings allow you to make either one of them but not both triband.
Second SIM is not connecting properly unless i switch the setting to allow SIM2 slot to be triband enabled. Then i get on, but the SIM1 becomes useless for data.

Does the second SIM support 3G (UMTS/HSPA) for voice calls, or only 2G?

I know that you can choose either SIM for 4G data. My question is, if I'm using one SIM for data, will the other SIM be 2G only, or 3G as well.
The reason I ask is that the US carriers are phasing out 2G entirely, meaning that soon you will need 3G for calling (not just data) and any device or SIM slot limited to 2G will not work at all.
2G only.

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