Hi, I have HTC Desire 820 Dual SIM. SIM 1 Slot is defective, i use SIM 2 Slot where i want to use 3G\4G network but when i change network from 2G to 3G\4G SIM card signals disappeared. "Limited Service" appears. I know that 3G frequency i.e. 2100 MHz and 4G LTE frequency i.e. Band 3 1800 MHz supported by this device.
Any one give me expert opinion to rectify this anomaly.
Thanks in advance.
Related
Hello,
I live in Japan, and recently I bought a HTC 620 from America. It was billed as being "unlocked" - great, I thought, I'll just put in a SIM card from a Japanese provider, and away I go.
Unfortunately, when I received the device and set it up, everything worked fine except for the SIM card. It just says "Searching..." for the provider.
I used the same SIM I'm using for my X01HT (flashed to WM6). I also tested another Softbank SIM card, and in desperation I even tried a Docomo FOMA SIM chip - none of these work.
Does anyone know whats going on here? I'm assuming I don't need to SIM unlock - is this phone a throwaway? Can I make it work somehow?
If you can help, I would be very grateful for a reply.
Thanks guys,
Logimob
Japan 2100 mhz UMTS for voice
If i remember correctly Japan uses UMTS on 2100 mhz for voice service. You would need a phone that has that band. The Excalibur has 850/900/1800/1900 mhz and no UMTS. It will not work.
My brother in-law just got a M8 Dual Sim (European). but for some reason he is not getting LTE connection.
I tried the same sim on a different phone and got LTE instantly. What is going on?
Should I unlock the bootloader and flash a different radio or try another rom?
please advise
It can't do the most common frequency: 800Mhz
1800Mhz and 2600Mhz work fine, but you mostly just get them in big citys.
Hi, I am an owner of this very nice smartphone, I'm very happy with it but there are a couple of problems that I'm not able to fix:
- it is sold as a 4G (LTE) phone for the sim card on the main slot and 3G on the second slot, it works only on 3G network for the main slot and 2G for the secon one
- an annoying metallic voice or strange noise when I receive or make a call from/to some numbers with a specific sim card (it's random but always the same numbers, I mean... not all numbers of a specific carrier but only some numbers of that carrier and never, till now, with other carriers).
It occours when that sim card is in the second slot (2G) or in the main slot and I force the 2G network on the main slot.
Did you experience the same problem?
spuntop said:
Hi, I am an owner of this very nice smartphone, I'm very happy with it but there are a couple of problems that I'm not able to fix:
- it is sold as a 4G (LTE) phone for the sim card on the main slot and 3G on the second slot, it works only on 3G network for the main slot and 2G for the secon one
- an annoying metallic voice or strange noise when I receive or make a call from/to some numbers with a specific sim card (it's random but always the same numbers, I mean... not all numbers of a specific carrier but only some numbers of that carrier and never, till now, with other carriers).
It occours when that sim card is in the second slot (2G) or in the main slot and I force the 2G network on the main slot.
Did you experience the same problem?
Click to expand...
Click to collapse
Which ever version of the phone that you get is not able to do 4G or LTE so thats a scam of the carrier and for the noise im not sure what can it be.
Sent from my SM-G850F
Vendor assured me that the phone can go in LTE... I must investigate which frequency use Vodafone in Italy.
spuntop said:
Vendor assured me that the phone can go in LTE... I must investigate which frequency use Vodafone in Italy.
Click to expand...
Click to collapse
And if you can search the web you can see for your self that P6 does not support lte in any way.
Sent from my SM-G850F
P6S does!
I'm talking about it, not P6.
Specs:
Dual Sim Yes, Full Active DSFA
2G GSM 850/900/1800/1900 Mhz
3G WCDMA 850/900/1900/2100 Mhz
4G LTE 900/1800/2100 Mhz
Slot Sim Card Dual Sim W+G/G+G - Micro Sim
spuntop said:
P6S does!
I'm talking about it, not P6.
Specs:
Dual Sim Yes, Full Active DSFA
2G GSM 850/900/1800/1900 Mhz
3G WCDMA 850/900/1900/2100 Mhz
4G LTE 900/1800/2100 Mhz
Slot Sim Card Dual Sim W+G/G+G - Micro Sim
Click to expand...
Click to collapse
You are wrong!
Link to GSM arena:
http://www.gsmarena.com/huawei_ascend_p6_s-5979.php
mojster666 said:
You are wrong!
Link to GSM arena:
http://www.gsmarena.com/huawei_ascend_p6_s-5979.php
Click to expand...
Click to collapse
Thats what I'm trying to explain all the time.
Sent from my SM-G850F
You are probably right and it isn't an LTE device... but for sure the specs on gsmarena are wrong when they say it is a dual sim dual standby.
It is dual active, I can receive calls on the second sim while I'm engaged on the first, hold this and answer on the second and vice versa.
On huawei.ru they say it is 3G, no P6S found on huawei.com.cn
Yes, you are right about dual sim specs. It is definitely dual active.
On GSM Arena are practically all phones dual sim standby. But this is wrong. However, we must admit the fact, that dual sim active phones are very rare.
I've bought a Galaxy S7 duos and have realized that the second sim only supports 2G.
Here in Japan there is no 2G network, only LTE and UMTS. Can anyone suggest a dual sim phone which supports LTE/UMTS on both sims?
I can't find a solid answer on this. I'm looking for a dual SIM phone that doesn't limit the 2nd SIM to 2G, like most older dual SIM phones. I found one source online that says it does support 3G on SIM2 after a software upgrade.
In particular I'm curious if it's supported on LineageOS ROM. My question in the relevant thread for that has gone unanswered. For now I'd be happy to know that it works even with stock.
You can run either the first or the second SIM on 3G, but you can't run both at once on 3G. As soon as you set one SIM to 3G, the other drops back to 2G. This defeats the purpose of Dual Sim in countries like Australia that have stopped using 2G. There's only one 3G radio in the phone.
This information is for the A7 2017, but presumably it's the same for the A5 2017.
A520F-DS, the dual 3G/2G works. At least dual standby. Stock TW. Also works with 4G on 1 SIM.
screenshot
Some apps might not update the signal strength(Android 1 telephony API, single SIM, 2G doesn't really support the newer(cellids only, no signal strength unless it's matched with the neighbouring cell info), 3G dual, and most of 4G is OK). To fix this, insert 2 sims, set 1 as default for everything, remove that SIM, the signal strength will update for the other SIM.
Band Selection(3G/2G only unless the other SIM is set to that) and Band Disable(4G/3G) works and only applies on the selected SIM. Requires root or specific CSCs.
Cell Locking applies only on SIM 1 and could affect SIM 2.
I've owned three different dual SIM phones (current one is the A3) and none of them could do more than 2G for the "other" SIM. Totally agree with @ryebuck that it defeats the purpose of dual SIM devices in some countries, the more so when more countries will drop 2G in the future. Either manufacturers start making REAL dual phones, or the dual concept will die of its own death.